2

ZETOR
This supplement of the operator’s manual for the tractors Z 3320 - Z 7340 will help you to become familiar with
the operation and maintenance of your new tractor.
In spite of fact many of you have reach experiences in operation of various Zetor tractor models, please, read
carefully all safety rules and operating instructions in this operator’s manual before attempting to operate the
tractor.
You will find a lot of new information and receive a perfect overview how to use the tractor with highest efficiency at
various operations.
Your new Zetor tractor will be your reliable friend if observing the mentioned safety rules, tractor maintenance and
safe operation.
Manufacturer of Your tractor wishes you thousands of satisfactorily worked hours.
ZETOR
Brno

3
Information about technical specifications, design, equipment, material, and external appearance is valid in the time of this
operator’s manual issue. Manufacturer reserves rights for changes.

4
 CONTENTS
Page
Tractors without a cab............................................................................................................ 6
Cab tractors.............................................................................................................................. 7
Location of serial numbers ................................................................................................... 8
Safety instructions for users ...............................................................................................10
Preventive daily service........................................................................................................13
Acquaintance with tractor.....................................................................................................19
Operation................................................................................................................................29
Maintenance instructions ....................................................................................................33
Electrical installation ............................................................................................................43
Planned technical maintenance ........................................................................................59
Main technical parameters..................................................................................................71
Alphabetical index.................................................................................................................75

The operator’s manual contains de-

scription, operation and maintenance of
standard and optional tractor
equipment.
Optional tractor equipment is marked
(∗) in this manual.
The option that isn’t a part of standard
tractor equipment can’t be a subject of
claim in case it isn’t assembled from
factory.
Service check book isn’t a part of opera-
tor’s manual. This is the separate book-
let that is passed to you at purchasing
of your new tractor.

5
 TRACTORS WITHOUT A CAB
2WD TRACTORS
Tractor Nominal Nominal
type engine engine
power power
(kW) EKO (kW)
ZETOR 3320 33,1 -
ZETOR 4320 - 43
ZETOR 5320 46 46
ZETOR 6320 51 48
ZETOR 7320 58 57

4WD TRACTORS
Tractor Nominal Nominal
type engine engine
power power
(kW) EKO (kW)
ZETOR 3340 33,1 -
ZETOR 4340 - 43
ZETOR 5340 46 46
ZETOR 6340 51 48
ZETOR 7340 58 57

S1

6
 CAB TRACTORS
2WD TRACTORS
Tractor Nominal Nominal
type engine engine
power power
(kW) EKO (kW)
ZETOR 3320 33,1 -
ZETOR 4320 - 43
ZETOR 5320 46 46
ZETOR 6320 51 48
ZETOR 7320 58 57

4WD TRACTORS
Tractor Nominal Nominal
type engine engine
power power
(kW) EKO (kW)
ZETOR 3340 33,1 -
ZETOR 4340 - 43
ZETOR 5340 46 46
ZETOR 6340 51 48
ZETOR 7340 58 57

S34
7
LOCATION OF SERIAL NUMBERS

S29

8
 LOCATION OF SERIAL NUMBERS
Whenever you contact your authorized service dealer or the factory for order of service parts, always know the model and serial
numbers of your tractor. For your convenience, write those numbers in the frames below.

Tractor model Tractor serial number Engine serial number

ZETOR 3320
ZETOR 3340
ZETOR 4320
ZETOR 4340
ZETOR 5320
ZETOR 5340
ZETOR 6320
ZETOR 6340
ZETOR 7320 Turbo
ZETOR 7340 Turbo

The “left“, “right“, “front“ and “back“ side

of the tractor is determined by sitting on
the seat in the normal operator’s
position and in the travelling direction.
Manufacturer reserves rights for chan-
ges of design and option, that improves
the tractor features.
S35

9
 SAFETY INSTRUCTIONS FOR USERS
Keep extreme attention when reading (optionally assembled 6.Starting tractor by means of towing
parts of operator’s manual that are equipment only). with another tractor or vehicle is allowed
marked by these symbols. when the pull bar is used only.
7.Start the tractor from driver’s seat only
You will find this symbol at all This symbol marks all chapters with shifting lever in neutral position.
important warnings identifying of operator’s manual speaking Clutch pedal must be fully pressed
the safety of tractor operation. about environmental safety. down.
Keep these safety massages Life hazard at starting by starter
GENERAL SAFETY
and however regardless of the connector short circuit.
REGULATIONS
hazard, be extremely careful! 8.The key must be at the key switch in
1.Only a trained operator having a valid position "I".
Inform your cooperators and
driving license and being properly 9.When preheating engine by electrical
other users about these mes-
acquainted with operating and safety heater, plug the heater first and connect
sages.
rules can operate the tractor. the cable into electricity after. After pre-
2.Except of safety warnings mentioned heating disconnect the cable from ele-
Study carefully chapters
in this Supplement of the operator’s ctricity first.
marked by this symbol before
manual you must respect all general Electrical shock hazard!
starting with operating, servicing
safety and traffic regulations of country
or adjusting the tractor.
where the tractor works.
You will find this symbol when- PROPER CLOTHING OPERATION
ever important information on 3.Don’t wear a loose clothing and free 10.Hoses of hydrostatic steering,
operation, adjustment and re- flying long hair at operation. brakes and fuel system must be
pairs of starter motor. 4.Use suitable (prescribed) personal checked and replaced in case of any
Keep these regulations and be protection means (working boots, damage indication.
extremely careful in these gloves, spectacles etc.) at work. The damage indication is for example:
cases! surface cracks on hose, loosening of
ENGINE START hose fittings (verify it by pulling of hose

∗ This symbol marks such tractor 5.Don’t start the engine by driving tractor from fitting) and mechanical damage of
equipment that is not downhill. hose. Hoses where the durability is
assembled as a standard mentioned on their surface must be

10
 SAFETY INSTRUCTIONS FOR USERS
changed before the expiration of the plements hitched in front three point
TRACTOR RELEASE, PUSHING
durability. hitch.
11.Brakes and steering must be 21.Reduced gears 1R, 2R, 3R must not 27.Use a pull bar or a rope for releasing
permanently in perfect condition. be used in case that tractors Z 4320 - of immobilized tractor. The pull bar or
12.Brake pedal must be latched at Z 7340 are implemented with the rope must be put on or put through
driving on the road, transportation with machines and implements the front hook only.
trailers and implements. having a big resistance when It is life dangerous to stand near the
13.Driving downhill without shifted gear engine speed is dropping and rope when releasing the tractor!
is forbidden! the tendency of engine is to be Never use the chains! Life hazard at
14.Pay special attention when driving on stopped (hazard of serious injuring of tearing the chain!
hilly, muddy, sandy, icy and uneven ter- the shafts). 28.Front hook assembled on front
rain. tractor frame serves for pulling of the
TRANSPORTATION OF PERSONS, tractor alone only, i.e. without trailer or
15.Don’t exceed the max. specified
OPERATION another implement.
inclination angle 11° for 2WD tractors
and 12° for 4WD tractors. 22.Number of persons transported by 29.Releasing the tractor when the
16.Don’t exceed the max. total weight of tractor must not exceed number reduced gears are shifted is forbidden!
trailers mentioned on the tractor serial mentioned in tractor technical license. 30.Never use free wooden blocks,
number plate or the rear fender label. 23.Persons, unauthorized to work with planks or bars put between tractor and
17.Don’t use the diff-lock when driving attached implement, must not stand pushed subject when pushing other ve-
into the turning. between tractor and hitched implement hicles (trailers, wagons etc.).
18.Never get out or into the driving trac- (machine). LEAVING TRACTOR
tor. It is forbidden. 24.Make sure neither any person nor 31.Do not park the tractor with attached
19.The front axle load must not be lower any obstacle allows driving before implement in lifted position.
than 18 to 20 % of total tractor weight starting tractor move. 32.Don’t forget to brake the tractor with
when transportation with agricultural im- 25.Don’t exceed the max. specified parking brake (shift the gear) remove
plements hitched in rear three point inclination angle. the key from key switch and lock the cab
hitch. 26.Max. allowed travel speed of tractor before leaving tractor.
20.Reduce the travel speed to 15 kmph and trailer equipped with air trailer 33.Brake the tractor with parking brake
when transportation with agricultural im- brakes is 30 kmph, with drum brakes it before leaving tractor with running engi-
is 25 kmph. ne.

11
 SAFETY INSTRUCTIONS FOR USERS
34.Usually use the left-hand side of space of shifting levers and hand attached implement can be done at
tractor- left door when leaving tractor. throttle control. stopped engine and stopped moving
Look round if any vehicle coming, that 36.Shift the reversor lever into forward tractor parts only, except of brake,
could jeopardize your safety when position at tractor equipped with rever- hydraulics and charging function
leaving and open the door. sor gear. inspection.
35.Use steps and handles when 38.Stop the engine before removing
AT STOPPED ENGINE ONLY
leaving the tractor. When leaving tractor bonnet side shields. The engine can
by the right door pay attention being in 37.All activities like refueling cleaning, run
lubricating and adjusting tractor or
in closed room and house only 45.Use the spark arrestor when working protection aids and to work in well-
when the perfect ventilation in fire hazard environment. ventilated areas.
works. Exhaust gases are health 49.Because of excession of the highest
HEALTH AND ENVIRONMENT
dangerous. permitted noise level values for eight
PROTECTION
hour shifts at the driver’s seat, the
FIRE PREVENTIVE RULES 46.These tractors are not equipped with tractor cannot be used for long periods
39.Refuel the tractor after finishing work special cab air intake filters. They are of time permanently.
and at stopped engine. therefor not intended for working with The driver must not exceed 380 minutes
40.Don’t refuel the fuel tank up to the top aerosols and other substances harmful of permanent work in an eight hour shift
in summer season. Wipe the fuel to health. (for Z 4320, Z 5320, Z 5340) or 425
immediately when spilled. 47.Kerosen, Diesel oils, mineral oils minutes (for Z 6320, Z 6340, Z 7320,
41.Don’t refuel the tractor nearby the and other oil products used for Z 7340). Otherwise the work has to be
open flame! Don’t smoke! operation and attendace of tractor may interrupted so the total time does not
42.Don’t smoke and don’t use the open cause an injury in direct skin contact exceed 380 or 425 minutes. The tractor
flame when inspecting the battery ele- and can irritate mucous membranes, working procedure must be adjusted to
ctrolyte level. eyes, digestive or respiratory organs. meet this requirement.
43.Keep properly the fire prevention re- Some of them can cause total
gulations in areas with increased fire poisoning when swallowed. WORKING WITH CRUDE OIL PRO-
hazard (hay-lofts, straw-stocks etc.). 48.The persons in contact with oil DUCTS
44.If the tractor is equipped with a fire products are obliged to observe - with 50.Wash properly your hands with mild
extinguisher keep it ready for use. no exception - the respective safety and detergent and protect them with suitable
hygienic regulations, to use the suitable
12
 SAFETY INSTRUCTIONS FOR USERS
skin ointment or cream after finishing
work or before eating.
51.Remove oil drops from
quickcouplers (from male and female)
by textile material after disconnecting or
connecting hydraulic circuit.
PREVENTIVE DAILY SERVICE
52.Do this service every day or at least
every 8 to 10 hours.
SAFETY CAB
53.If corrosion or accident damages the
frame of safety cab it is necessary to
exchange the cab.

13
 PREVENTIVE DAILY SERVICE
Do this service every day or at least every 8 to 10 hours.

S40

14
 PREVENTIVE DAILY SERVICE

A9 A10 S25

FUEL SYSTEM LEAKAGE ENGINE OIL LEVEL COOLING SYSTEM

Inspect the fuel system for leakage in- Check the engine oil level after unscre- Inspect the engine cooling system for
cluding the fuel tank. Repair wing and removing of oil dipstick. In- leaks. Check the coolant level. Add the
immediately any leaks. spect the lubrication system for coolant to correct level. Correct level of
The drain plug for draining impurities leakage. Maintain the oil level between the coolant is 55 mm from the top edge
and fuel is located in the bottom part of dipstick marks. of the filling neck.
fuel tank. Release the filler cup after
coolant temperature cooling
down. Avoid scalding!

15
 PREVENTIVE DAILY SERVICE

S3 S33 S4

SERVICE BRAKES AIR BRAKES STEERING

Check the brake fluid level in the brake Inspect the air brake system leak and - check the oil level in the hydrostatic
fluid expansion reservoir. Inspect the tractor break efficiency with trailer (see steering oil tank by dipstick
brake and clutch circuit for leaks if loss „inspection for air brake leak“). - check and retorque bolts and nuts of
of brake fluid level. steering tie-rods and arms
- inspect status of hydrostatic steering
circuit hoses for damage and oil leak

16
 PREVENTIVE DAILY SERVICE

S26 M204

AIR CLEANER CAB FILTRATION

Air cleaner maintenance is necessary to Inspect and clean the air filter elements
do after indication of the clogging for cab ventilation located under the
indicator. front tiltable panel.
The indicator is accessible after side The interval for filter element replace-
shield removal. The indicator is located ment depends on dusty conditions of
on suction pipe. working environment. Partial recovery is
Clogging of the air cleaner is mecha- possible by tapping or cleaning with
nically indicated by red field appeared pressure air.
on the clogging indicator.
1a air cleaner is not clogged
1b air cleaner is clogged - do main-
tenance. See the part “Maintenance
instructions”

17
NOTE

18
 ACQUAINTANCE WITH TRACTOR
Page
Safety frame.............................................................................................................. 20
Safety frame with canopy.......................................................................................... 20
Fuel tank ................................................................................................................... 20
Average fuel consumption in liters per engine hour of tractor ........................................ 20
Dashboard ................................................................................................................ 21
Gauge display ........................................................................................................... 21
Key in "0" position ..................................................................................................... 22
Key in "I" position ...................................................................................................... 22
Key in “II“ position ..................................................................................................... 22
Cab switches - hazard lights ..................................................................................... 23
Low beam lights - change-over switch ...................................................................... 23
Tractor lights switch .................................................................................................. 23
Throttle control lever ................................................................................................. 24
Transmission control................................................................................................. 24
Creeper speeds shifting lever ................................................................................... 24
Compressor drive engagement...................................................................................... 25
Disassembling the side shield........................................................................................ 25
Location of information and safety decals............................................................. 27

Tractor user must be properly

acquainted with recommended
operating and safety rules in
advance. It is too late to do it
within operation!
19
 ACQUAINTANCE WITH TRACTOR

S11 S10 S9
SAFETY FRAME SAFETY FRAME WITH CANOPY FUEL TANK
Open station tractors are equipped with A polyester fibre-glass canopy can be Fuel tank capacity is 85 litres.
a safety frame. The frame is attached to mounted onto the safety frame. AVERAGE FUEL CONSUMPTION IN LITERS
the tractor body and protects the driver PER ENGINE HOUR OF TRACTOR
in case of an accident. Standard versions of engines
Tractor type Engine load
100% 80% 50%
Z 3320, Z 3340 10,1 8,1 5,3
Z 5320, Z 5340 13,7 11,0 7,3
Z 6320, Z 6340 15,2 12,1 8,0
Z 7320, Z 7340 16,7 13,4 8,9
EKO engines
Tractor type Engine load
100% 80% 50%
Z 4320, Z 4340 12,8 10,3 6,8
Z 5320, Z 5340 13,7 11,0 7,3
Z 6320, Z 6340 14,4 11,5 7,7
Z 7320, Z 7340 17,2 13,8 9,1
20
 ACQUAINTANCE WITH TRACTOR

S5 S6 S39
DASHBOARD 14.tachometer (rpm) and service hour GAUGE DISPLAY
1. rear fog lamp control light meter 1. high beam headlight (blue). Is “ON”
2. tractor turn signal control light 15.PTO disengagement clutch control when the high beam is on.
st
3. trailer turn signal control light (1 ) light (red) 2. fuel (orange). Starts to light when only
nd
4. trailer turn signal control light (2 ) 16.minimum air pressure signal lamp. 1/6 to 1/10 of fuel capacity remains in
5. hazard signal control light Starts to light in the case of a brake fuel tank.
6. air pressure gauge system failure or when the air 3. lubrication (red). Indicates low oil
7. tractor lightning switch pressure is below 380 kPa pressure (insufficient lubrication)
8. blind 17.cab headlights control lamp. Indicates below 60 to 120 kPa.
9. gauge display the “ON” condition of headlights on the 4. flood light (yellow). Indicates the food
10.flood light and rear fog lamp change- roof. light “ON” condition.
over switch 18.fuel gauge. If the respective lamp starts 5. charge indicator (red). Indicates a
11.light control switch (headlights, direction to light in the gauge display, the fuel malfunction in charging.
indicators, headlamp flasher, acoustic tank still contains 1/6 to 1/10 of fuel. 6. parking brake indicator (red). “ON”
horn) 19.coolant thermometer when the parking brake is engaged.
12.hazard light switch 20.switch box with key
13.dimmer switch of headlights in the 21.∗ thermostart indicator light. It is
radiator grill or on the cab roof mounted on all the tractors equipped
with EKO engines.
21
 ACQUAINTANCE WITH TRACTOR

S43 S44 S45

KEY IN "0" POSITION KEY IN "I" POSITION KEY IN “II“ POSITION
All electrical appliances controlled by the All electrical appliances controlled by the Starter motor is connected in this posi-
key switch are disconnected. The key key switch are connected except of tion. All electrical appliances controlled
can be removed. starter motor. The key is located in this by the key switch are connected except
position when running the engine. of wipers, washer, blower of cab. The
key is turned automatically to “I“ position
after starting.

22
 ACQUAINTANCE WITH TRACTOR

S15 S13 S14

CAB SWITCHES - HAZARD LIGHTS LOW BEAM LIGHTS - CHANGE-OVER TRACTOR LIGHTS SWITCH
"0" hazard lights turned off SWITCH "0" tractor lights turned off
"I" hazard lights turned on "0" low beam or high beam lights in the "I" clearance lights and taillights,
radiator grill are “ON” licence plate light, gauges are “ON”.
"I" low beam lights on the cab roof are The rear flood light including its
“ON” (may be used only when an indication lamp can be turned on,
implement attached to the front too, by means of the separate
three point hitch is shading the lights switch.
in radiator in radiator grill) "II" all appliances as in “I” position.
Moreover low and high beam lamps
are “ON” according to the position of
toggle switch.

23
 ACQUAINTANCE WITH TRACTOR

S12 S7 S2
HAND THROTTLE CONTROL LEVER TRANSMISSION CONTROL CREEPER SPEEDS SHIFTING LEVER
STOP stops the engine 1. main transmission control lever 1. engaged - low travel speed position
MAX maximum fuel supply 2. disengaged - normal travel speed
position
The creeper eliminates 1000 rpm PTO
shaft speed.
For a certain type of work select the
appropriate standard gear, High/Low
and only then shift the creeper gear.
The shifting is done with clutch
pedal fully pressed down and
with TRACTOR STILL by moving
the creeper lever to position 2.

24
 ACQUAINTANCE WITH TRACTOR

A55 S57 S27

COMPRESSOR DRIVE ENGAGEMENT Compressor drive engagement (A) DISASSEMBLING THE SIDE SHIELD
1. compressor drive engagement lever lever 1 to take up − push and turn three quick lockers of
2. engagement condition lock lever lever 2 to push the tractor side shield
The compressor must be ever − lift a little the side shield and remove it
engaged when driving the tractor from the tractor
Compressor drive disengagement (B)
with trailer or implement that is
braked with air trailer brakes. lever 1 to take up
lever 2 to push out

25
ACQUAINTANCE WITH TRACTOR

C58_engl

26
 ACQUAINTANCE WITH TRACTOR
LOCATION OF INFORMATION AND
SAFETY DECALS

3. decal of the front PTO

4. warning decal - hand

5. warning of starter motor

6. EPA label (for USA only)

6. EKO label (for EKO engines only)

27
NOTE

28
 OPERATION
Page
Starting the engine.................................................................................................... 30
Engine starting fail .................................................................................................... 30
Starting the Eko engine............................................................................................. 30
Initial 10 service hours .............................................................................................. 31
After 10 service hours ............................................................................................... 31

Be familiar with shifting pattern

and test all positions of shifting
lever at stopped engine before
driving the new tractor.
Be sure that the technical status
of tractor corresponds to the
safety traffic condition before
driving.
29
 OPERATION
ENGINE STARTING FAIL
Repeat starting after 30 seconds. Max. 6
starting cycles are allowed (15 seconds
starting and 30 seconds brake is one
cycles). Farther starting engine is
allowed after cooling of starter motor to
ambient temperature.
Never help to the stopping
engine by starter motor. You will
avoid starter damage!
STARTING THE EKO ENGINE
1. Insert the key into the key switch.
2. Depress the clutch pedal.
A59 S18 3. Set the MAX throttle.
STARTING THE ENGINE 1. Insert the key into the key switch. 4. Turn the key through “0” position into
Before starting the engine check 2. Depress the clutch pedal. “I” position. Thermostart indicator light
to be sure the tractor is braked 3. Turn the key through “I” position into is “ON”.
reliably and the transmission “II” position (start). Crank the engine 3 5. Wait until the thermostart indicator
control lever in neutral position. - 5 second, than release the key and light is “OFF” (approx. 18 sec).
When the engine is being started turn it into “0” position. Engine 6. When the thermostart indicator light is
at the ambient temperature cranking can be eliminated at higher “OFF” turn the key immediately into
below 0°C, the hydraulic pump ambient temperature. “II” position (start). Don’t start engine
4. Set the max. throttle. longer than 15 seconds. Release the
drive must be disengaged. With
5. Turn the key through “I” position into key immediately after starting the
an independent hydraulic pump
“II” position (start). Release the key engine.
the pump drive must be turned
immediately after engine starting. Don’t 7. After starting engine, step by step
off only if a disengagement
start engine longer than 15 second. reduce the throttle.
mechanism is fitted. Use five to
6. After starting engine, step by step 8. If the engine fails turn the key into the
ten strokes of priming pump to fill
reduce the throttle. Avoid running “0” position.
up the fuel system.
engine at high idle. 9. Set the throttle control lever into the
STOP position.
10.Wait 30 seconds and repeat the
points 2. - 7.
30
 OPERATION

A60a S16 S17

It is forbidden to start the tractor INITIAL 10 SERVICE HOURS AFTER 10 SERVICE HOURS
by short circuit of starter motor If the tractor is equipped with the Remove and clean the magnetic insert
connector. independent hydraulic pump the and screen of the hydraulic pump
Start from the driver’s seat only. running-in should be carried out only in suction strainer. Wash these two
Disconnect the ground battery the traffic operation with hydraulic pump elements in petrol and install them back
pole, shift all levers into neutral disengaged (the control lever in “0” after dripping. Add oil to the upper mark
position, including PTO engage- position). on the transmission oil dipstick, if
ment, when any manipulation necessary. All the tractor hydraulic
with starter or repairing it. Avoid system may now be used without
accidental starting that could limitation.
cause life hazard of serviceman. A - pump is located on engine cover.
When installing the filter cover
beware of the necessary clearance
between engine and filter covers.
B - the pump is located on the
transmission cover within the lower
portion of transmission.

31
NOTE

32
 MAINTENANCE INSTRUCTIONS
Page
Lubrication schema of Z 5201 engine....................................................................... 34
Lubrication schema of Z 7201, Z 7701 engines........................................................ 35
Lubrication schema Z 7301 Turbo engine .................................................................... 36
Air cleaner................................................................................................................. 37
Main air folter element regeneration ......................................................................... 37
Inner safety air filter element exchange .................................................................... 38
Air filter element reassembly..................................................................................... 38
Clogging indicator reset ............................................................................................ 38
Hydrostatic steering oil and filter element exchnge .................................................. 39
Filling up the brake fluid ............................................................................................ 40

The tractor driver or user can perform

the majority of scheduled technical
service by himself. When you are not
provided with sufficient technical means
and equipment, entrust the more
exacting elemental operations to a
specialized workshop.
Concerning cleaning, lubrication
and adjustment of tractor, trailing
machine or implements, all the
operations may be carried out
only when the engine and the
other moving parts are stopped,
except for inspection of the
brakes, battery charging and
hydraulic system.
33
MAINTENANCE INSTRUCTIONS
LUBRICATION SCHEMA OF Z 5201
ENGINE
1. suction strainer
2. oil pump
3. reduction valve
4. oil cleaner with exchangeable cartridge
5. main oil channel
6. pressure switch
7. indicator light
8. filler
9. oil dipstick
10.injection pump
11.oil drain plug

S54

34
MAINTENANCE INSTRUCTIONS
LUBRICATION SCHEMA OF Z 7201,
Z 7701 ENGINES
1. suction strainer
2. oil pump
3. reduction valve
4. oil cleaner with exchangeable cartridge
5. main oil channel
6. pressure switch
7. indicator light
8. filler
9. oil dipstick
10.injection pump
11.oil drain plug

S55

35
MAINTENANCE INSTRUCTIONS
LUBRICATION SCHEMA Z 7301 TURBO
ENGINE
1. suction strainer
2. oil pump
3. reduction valve
4. oil cleaner with exchangeable cartridge
5. main oil channel
6. pressure switch
7. indicator light
8. filler
9. oil dipstick
10.injection pump
11.oil drain plug
12.heat exchanger
13.turbocharger

S56

36
 MAINTENANCE INSTRUCTIONS

S26 S19 S20

AIR CLEANER Maintain the air cleaner by the following MAIN AIR FILTER ELEMENT RE-
Air cleaner maintenance is necessary to way: GENERATION
do after indication of the clogging indi- − push and turn three quick lockers on − remove the main air filter element
cator. this tractor side shield where the air
If the main air filter element is not
The indicator is accessible after side cleaner cover is located
damaged (dust on the inner side of air
shield removal. The indicator is located − lift a little the side shield and remove it
filter element must not be appeared) do
on suction pipe. from the tractor
regeneration by pressure air blown from
Clogging of the air cleaner is mecha- − remove the wing nut of air cleaner the inner side of element. The main air
nically indicated by red field appeared on cover filter element can be regenerated maxi-
the clogging indicator. − remove the air cleaner cover mally three times by this way. The main
1a air cleaner is not clogged air filter element needs to be replaced
1b air cleaner is clogged - do main- once per year.
tenance. See the part “Maintenance
instructions”

37
 MAINTENANCE INSTRUCTIONS

S21 S28 S8
INNER SAFETY AIR FILTER ELEMENT AIR FILTER ELEMENT REASSEMBLY CLOGGING INDICATOR RESET
EXCHANGE Be careful at the air filter element re- Reset the clogging indicator after
− remove the wing nut of inner safety air assembly: dry air cleaner maintenance.
filter element - keep the contact surfaces clean − push the push button on the indicator
− remove the safety air filter element - air filter elements must not be body (2a)
Inner safety air filter element can deformed and must not vibrate after − you will mechanically release the in-
not be regenerated! assembly dicator lock of red field indicating
It must be exchanged in the following - rubber sealing must be fitted properly clogging
cases: round the complete circumference, the − indicator is again in function (2b)
- if the main air filter element is damaged proper tightness of the complete
th cleaner must be assured after reas-
- after 5 maintenance of air cleaner
- minimally once per 2 years sembly of air filter cover

38
 MAINTENANCE INSTRUCTIONS

S30 S32 S37

HYDROSTATIC STEERING OIL AND - remove the cleaner element and install - fix the tractor against movement and
FILTER ELEMENT EXCHANGE the new cleaner element lift the front axle
- remove the tractor side shield - reassemble the oil tank cap - put a vessel for the old oil
- put the suitable vessel under - reassemble the nut of the oil tank cap under the steering cylinder and
the hydrostatic steering tank and the drain plug remove the oil from cylinder by
- remove both hoses from steering turning of wheels (by hand)
- loosen the drain plug cylinder and return tube from tank - reassemble all disconnected fittings
- drain the oil from tank - put them together with return - fill the tank by oil and bleed the
- remove the nut of the oil tank cap line tube into vessel for the old hydrostatic steering circuit
- remove the oil tank cap oil
- start the engine and turn the steering
wheel twice or three times into both
directions at low engine idle run (max.
10 sec.) to remove the oil from the
steering unit

39
 MAINTENANCE INSTRUCTIONS

S59 S3
At all actions within bleeding look FILLING UP THE BRAKE FLUID
at the oil level in tank to avoid Maintain the brake fluid level within ¾
aeratig of steering system. (max. level) up to ½ (min. level) of tank
After bleeding check and eventually add capacity.
the oil into tank up to the mark of oil Keep the strict cleanness when
dipstick. Check for leakage of all con- manipulating with brake fluid.
nections and lines. Leakage is not Daily inspect the brake fluid level
allowed. before driving.

40
NOTE

41
NOTE

42
 ELECTRICAL INSTALLATION
Page
Electrical equipement................................................................................................ 44
Basic service informations ........................................................................................ 44
Battery....................................................................................................................... 45
Battery maintenance ................................................................................................. 45
Charging and maintaining the batery ........................................................................ 46
Alternator .................................................................................................................. 47
Alternator maintenance............................................................................................. 47
Fuse box ................................................................................................................... 48
Elecrtical connections of fuses within the fuse box................................................... 48
Adjustment of front mask headlights......................................................................... 49
Checking of cab roof headlights adjustment ............................................................. 49
Cab roof headlights adjustment ................................................................................ 49
Dashboard wiring diagram for tractors Z 3320 - Z 7340 ........................................... 50
Electrical installation for tractors Z 3320 - Z 7340..................................................... 52
Safety cab electrical installation for tractors Z 3320 - Z 7340 ................................... 54
Warning lights electrical installation for tractors Z 3320 - Z 7340 ............................. 56
Thermostart electrical installation for tractors Z 3320 - Z 7340................................. 57
List of lamps bulb used ............................................................................................. 58

Pay special attention for mani-

pulation with battery when
repairing electrical installation to
avoid contact of skin or clothes
with electrolyte.
43
 ELECTRICAL INSTALLATION

S39 S23 S22

ELECTRICAL EQUIPEMENT BASIC SERVICE INFORMATIONS
Nominal voltage Battery "minus" poll must be ever connected with the ground and "plus" poll
(minus poll (-) grounded) 12 V connected with alternator. Vice versa connected battery destroys the complete
Battery (1) electronics of alternator.
AKUMA 12 V/135 Ah If starting tractor by means of another battery or auxiliary source don’t forget to
VARTA 12 V/135 Ah connect “plus” to “plus” and “minus” to “minus” and auxiliary source must be set to
Alternator (2) 12 V. Disconnect battery by ∗ battery switch or remove the connector for tractor
with integrated voltage ground (-) if changing any part of charging circuit to avoid possible short circuit.
regulator 14V/55 A At any manipulation or repair of starter the battery must be disconnected and
Starter motor(3) 12V/2,9 kW all shifting levers including PTO lever must be in neutral position to avoid self
starting and life hazard.
Drive belts for:
AVX 10- Starting tractor by short circuit of starter connectors is forbidden!
- alternator
1113 LA Tractor must be always started from driver’s seat.
(2 pcs.)
- water pump AVX 10-
1125 LA
(2 pcs.)

44
 ELECTRICAL INSTALLATION

S27 M232
BATTERY BATTERY MAINTENANCE
Battery is located behind the front mask Maintain the battery clean, good fixed to the vehicle. The fixing device mustn’t
of bonnet and is accessible after re- deform the battery case. Electrolyte level mustn’t be under the minimum mark that is
moving the side shields. on the case.
∗ Battery switch is located on the right Add distilled water only!
hand side of engine compartment (see 1. First study the operator’s manual before working with batterry!
picture S22). 2. Safe your eyes by glasses or by safety shield!
If the tractor is out of operation for 3. Electrolyte is a caustic agent that’s why keep attention when working
longer period of time, it is with electrolyte! Neutralize the skin and wear stained by electrolyte with
necessary to charge the battery at soap water. Wash them by clean water.
least once in three month because 4. Hydrogen is released from electrolyte at charging the battery and this
of the battery selfdischarging and creates the explosive mixture being mixed with the air! That’s why
the spacing current of AEV warning manipulation with open flame and smoking at battery is forbidden!
lights breaker. It is recommended 5. The explosion might be caused by a spark created at manipulation with
to disconnect the battery by means battery terminals when the closed charging circuit!
of the battery disconnecting switch 6. Keep children out of battery and electrolyte!
in case the tractor is put out of 7. Discarded battery is ecologically dangerous reject! Let it scrap by
action. specialists (service network). They will do it free of charge when buying
the new battery.
45
 ELECTRICAL INSTALLATION
CHARGING AND MAINTAINING THE agent and destroy of battery case). density of electrolyte and is measured
BATERY Heavily discharged battery (density of by densimeter. Every cell needs to be
3
A) Charging on the vehicle and out- electrolyte lower than 1,07 g/cm ) measured.
side the vehicle might be frozen already at several Status of charging = density of electrolyte
degrees below zero. charging status electrolyte density
1. Systematic overcharging and dis- 4. Charge the battery by current that is 100 % 1,28 g/cm
3

charging of battery damages and 0,1 of total battery capacity (or lower) 70 % 1,23 g/cm
3
3
shortens its life. Correctly adjusted up to fully charged status. 50 % 1,20 g/cm
3
charging system maintains battery 20 % 1,15 g/cm
3
near to the fully charged status. At set 5. Charging device with constant voltage 0% 1,12 g/cm

level of voltage (13,8 - 14,4 V) in 14,4 V can be also used. Charging C) Storage of charged battery with
charging system and average tractor time can be max. 30 hours according electrolyte
operation it is sufficient to check and to status of discharging.
1. Before storage the battery must be
maintain the level of electrolyte by 6. Fully discharged battery must be
charged up to final symptoms of
distilled water once per six month. charged as soon as possible, other-
charging. It must be disconnected
2. At heavier operation and another level wise its full capacity can not be re-
from charging system, cleaned and
of regulated voltage it is necessary stored.
with plugs.
more frequent checking the level of B) Charged battery 2. Battery that is built into a plastic case
electrolyte. Overcharging the battery 1. Battery is considered as fully charged from polypropylene must be charged
on vehicle (more than 14,4 V) causes if all battery cells generates the gas after three month of storage because
bigger loose of electrolyte. with same intensity. If the electrolyte of smaller self-discharging.
3
3. It is necessary to charge the battery density is 1,28 g/cm in all cells and if 3. Intervals for checking the status of
removed from the vehicle or in the the total voltage of battery is within electrolyte are: when charging the
vehicle which is not in operation (see 15,3 - 16,5 V, measured with the battery or minimally once per 6
storage of charged batteries with prescribed charging current. month, battery is maintained by
electrolyte). It is also suitable to 2. Status of full charging is confirmed adding the distilled water! If some
charge battery in vehicle before when the received density of electro- electrical components are per-
wintertime and after wintertime. In lyte and level of voltage is not manently connected even at discon-
winter season and strong frost the changed within farther two measure- nected key switch (for example
electrolyte might be frozen at almost ments following after two hours. Warning) it is necessary to check the
discharged battery (density of 3. For example the charging status for status of charging - i.e. voltage w/o
3
electrolyte 1,12 - 1,15 g/cm ) in this your orientation: status of charging load and electrolyte density min. 1x
case the life will be substantially corresponds to density of electrolyte. after 1 month.
reduced (disintegration of active Charging status is characterized by
46
 ELECTRICAL INSTALLATION

S42 S38
ALTERNATOR ALTERNATOR MAINTENANCE
Alternator is located on the right hand - Protect the alternator against penetration of water or diesel fuel when washing and
side of engine. Charging status is cleaning tractor.
indicated by red indicator light on the - Battery must never be disconnected at operation!
gauge display. - The alternator must never run without load i.e. with disconnected terminal "+B"
Damaged indicator light bulb and connected terminal "+D". This status creates excessively high voltage of
12 V 2 W must be immediately alternator at increased engine speed and this voltage damages the alternator
exchanged. If the indicator light electronics.
bulb is damaged the battery isn’t - Never create the short circuit of any alternator connector at operation.
charged! - Alternator must not be additionally excited. Alternator electronics is damaged in
All wires connected with the this case.
alternator must be disconnected - Keep the perfect electrical connection of alternator terminals and perfect alternator
when repairing tractor by electric ground.
arc welding. Protect the wire
"+B" against short circuit.

47
 ELECTRICAL INSTALLATION

S24 S53
FUSE BOX ELECTRICAL CONNECTIONS OF FUSES WITHIN THE FUSE BOX
Fuse box is accessible after removing of 1. brakes, headlamp flasher, acoustic horn, warning lights, turn signal lights
steering support cover. The main fuse 2. PTO shaft clutch lights
box has eight polls. Tractors with safety 3. hand-lamp socket, power supply of instrument and indication lamps
cab have another four-pole fuse box 4. left hand tail and clearance lights, licence plate illumination
installed near the main fuse box. All 5. right hand tail and clearance lights, instrument panel light, working headlight
fuses have the rated value of 15 A. 6. right-hand lower beam headlight in front mask or on the safety cab roof
Nearby the main fuse box is located the 7. left-hand lower beam headlight in front mask or on the safety cab roof
special thermostart fuse of the rated 8. upper-beam headlamps and upper-beam light indicator lamp
value 20 A. The thermostart fuse is 9. front windshield wiper/washer, rear windshield wiper, control of cab heating and
mounted on the all tractors equipped ventilation, (switching-on relay for rear windshield heating)
with thermostart and all the tractors 10.working headlights on the safety cab roof, radio
equipped with EKO engines. 11.power supply for heating and ventilation, cab ceiling lamp
12.reserve
13.thermostart (20 A)

48
 ELECTRICAL INSTALLATION

A202 S41
ADJUSTMENT OF FRONT MASK CHECKING OF CAB ROOF HEADLIGHTS ADJUSTMENT
HEADLIGHTS Any point of illuminated surface on the left side must not be far off 30 m from front
Adjust the light by means of both screws tractor part. Headlight beams must be parallel with tractor axes.
(1) for vertical and horizontal direction Adjust the headlights at tractor shipping weight. Front roof headlights can be used on
simultaneously - horizontally ± 2°; verti- the road only in case, front implement is attached or machine covers mask
cally +1° to -6°. headlights.
Each light is adjusted separately. Bulb is Front roof headlights can be used on the road only in case that front
exchanged from the rear part of para- implement is attached or if the attached machine covers grill headlights.
bola. Slide out or remove the battery
because of limited space. CAB ROOF HEADLIGHTS ADJUSTMENT
Cab roof headlights are adjusted by the same way as the tractor mask headlights.

49
DASHBOARD WIRING DIAGRAM FOR TRACTORS Z 3320 - Z 7340

S50

50
 DASHBOARD WIRING DIAGRAM FOR Z 3320 - Z 7340 TRACTORS
1. tractor turn signal control light
2. trailer turn signal control light (1st
trailer
3. trailer turn signal control light (2nd
trailer)
4. hazard control lamp
5. indicator cluster lamps
6. tachometer (rpm) and hour meter
7. fuel gauge
8. PTO clutch disengagement control
light
9. minimum air pressure indicator lamp
10. coolant thermometer
11. cab headlights control lamp
12. dimmer switch of headlight in the
radiator switch or on the cab roof
13. thermostart indicator
14. switch box with key
15. hazard light switch
16. flood light and rear fog lamp
changeover switch
17. tractor lightning switch
18. multi-position switch for turn signal,
horn and high beam headlights
19. air pressure gauge
20. rear fog lamp control light

51
ELECTRICAL INSTALLATION FOR TRACTORS Z 3320 - Z 7340

S48_new

52
 ELECTRICAL INSTALLATION FOR TRACTORS Z 3320 - Z 7340
21. minimum air pressure indicator lamp 32. grill headlights
22. cab headlights control lamp 33. work and fog light switch
23. coolant temperature gauge 34. tractor lightning switch
24. fuel gauge 35. air pressure gauge
25. switch box with key 36. fog lights indicator lamp
26. starter button 37. tractor turn signal control light
st
27. coolant temperature sensor 37a. trailer turn signal control light (1
28. park brake switch trailer)
nd
29. fuel tank float 37b. trailer turn signal control light (2
30. engine oil pressure sensor trailer)
31. air pressure sensor 38. indicator cluster lamps
32. brake light switch 39. tachometer (rpm) and hour meter
33. alternator 40. PTO shaft indicator lamp
34. brake light relay 41. thermostart indicator lamp
35. battery disconnect switch 42. hazard control lamp
36. battery
37. left front turn signal and clearance
lights
38. right front turn signal and clearance
lights
39. work-light
40. electromagnetic valve of PTO clutch
41. seven-pin trailer socket
42. starting motor
43. PTO clutch switch
44. eight-position fuse box
45. license plate lights
46. four-position fuse box (for tractors
equipped with safety cab only)
47. grill-roof switch
29. horn
30. hand light jack
31. multi-position switch for turn signal,
horn and high beam headlights
53
SAFETY CAB ELECTRICAL INSTALLATION FOR TRACTORS Z 3320 - Z 7340

S51_new

54
 SAFETY CAB ELECTRICAL INSTALLATION FOR TRACTORS Z 3320 - Z 7340
1. rear windshield wiper
2. right rear flood-light on the roof
3. right rear light
4. licence plate lights
5. left rear light
6. work light
7. left front light
8. right front light
9. heating
10. radio connection
11. relay
12. ceiling light
13. right front flood-light on the roof
14. rear windshield wiper switch
15. frame connection points
16. flood light changeover switch
17. front windshield wiper and washer
changeover switch
18. front windshield wiper
19. washer
20. left front flood-light on the roof
21. left rear flood-light on the roof

55
 WARNING LIGHTS ELECTRICAL INSTALLATION FOR TRACTORS Z 3320 - Z 7340
1. hazard light switch
2. flasher
3. fuse
4. tractor turn signal control light
st
5. trailer turn signal control light (1
trailer)
nd
6. trailer turn signal control light (2
trailer)
7. hazard signal control light

S52

56
 THERMOSTART ELECTRICAL INSTALLATION FOR TRACTORS Z 3320 - Z 7340
1. starter
2. clutch start switch
3. switch box
4. thermostart fuse (20 A)
5. relay
6. thermostart glowplug
7. thermostart valve
8. thermostart indicator light
9. thermostart governor

S49

57
 ELECTRICAL INSTALLATION

S46
LIST OF LAMPS BULB USED
Pos. Bulb destination Voltage Outlet Socket Note
1 front asymmetric headlights 12 V 45/40 W P 45t
2 cab roof asymmetric headlights 12 V 45/40 W P 45t low beam filament connected
3 front combine headlights
- turning lights 12 V 21 W BA 15s
- position lights 12 V 10 W BA 15s
5 rear combined lights
- tail lights 12 V 21/5 W BAY 15D
- brake lights 12 V 21/5 W BAY 15D
- turning lights 12 V 21 W BA 15s
6 licence plate light 2x12 V 5W S 8,5
7 dashboard
- turn signal control lights 12 V 4W BA 9s
- other pilot lamps 12 V 2W BA 9s
8 cab dome illumination 12 V 5W S 8,5

58
PLANNED TECHNICAL MAINTENANCE
Page
Planned technical maintenance - used liquids and fills ............................................ 60
Planned technical maintenance - lubrication chart ................................................... 66

59
 PLANNED TECHNICAL MAINTENANCE - USED LIQUIDS AND FILLS
General classifications of engine oils for tractors Z 3320 - Z 7340
(tab. 1)
Viscosity class API class Suitability for Specification CCMC class
SAE J 300 JUN 87 SAE J 183 MAR 88 ambient APR 95
temperature
(C°)
10W/30 CD+, CE, CF-4 below -7 MIL-L-2104 D-4/PD 2
10
20W/30 CD+, CE, CF-4 below -7 MIL-L-2104 D-4/PD 2
20W/40 up to +30
15W/30
15W/40
20W/30 CD+, CE, CF-4 above +30 MIL-L-2104 D-4/PD 2
20W/40
20W/50
30
40

60
 PLANNED TECHNICAL MAINTENANCE - USED LIQUIDS AND FILLS
Oils for turbocharged engines Z 7320 - Z 7340 (tab. 1)
Manufacturer Oil mark Viscosity class API class
Paramo Pardubice M7ADS III -Trysk 20W/40 SF/CD+
Paramo Pardubice M7ADS III - Trysk Super 15W/40 SG/CE
Paramo Pardubice M7ADS IV - Trysk Super Turbo 15W/40 SG/CF-4
Shell RIMULA TX 10W/30 SG/CF-4
Aral Multi Turboral 15W/40 CF-4/SH
Aral Austrotrac 10W/30 CE/SF
Koramo Kolín Mogul Diesel DTT Plus 10W/40 CF-4
ÖMV ÖMV Truck M Plus 15W/40 CF-4/SG
ÖMV Truck FE Plus 10W/40 CF-4
ÖMV Truck FE 10W/40 CE/SG
ÖMV Austrotrac 10W/30 CE
ÖMV Truck LD 15W/40 CE
ÖMV RME Plus 15W/40 CE/SG

Oils for naturally aspirated engines Z 3320 - Z 6340 (tab. 1)

Manufacturer Oil mark Viscosity class API class
ÖMV Super Diesel 15W/30 CD CE
Koramo Kolín M7ADX Mogul Super Stabil 15W/40 SF/CC
Koramo Kolín Mogul Diesel DT 15W/40 SD/SE

61
 PLANNED TECHNICAL MAINTENANCE - USED LIQUIDS AND FILLS
General specifications for transmission oils used for Z 3320 - Z 7340 (tab. 2)
Viscosity class API class Suitability for Specification
SAE J 306 MAR 85 SAE J 308 NOV 82 ambient
temperature
80W GL-4 all season MIL-L-2105

Oils for transmissions Z 3320 - Z 7340 (tab. 2)

Manufacturer Oil mark Viscosity class API class
ARAL EP 80 80W GL-4
Paramo Pardubice Gyrol - UTTO 80W GL-4
Paramo Pardubice Gyrol - PP 80 80W GL-4
Esso Torque Fluid 62 80W GL-4

Oils for front driving axle Z 3340 - Z 7340 (tab. 3)

Manufacturer Oli mark Viscosity class API class
Agip Torque Fluid 62
Rotra Multi THT

62
PLANNED TECHNICAL MAINTENANCE - USED LIQUIDS AND FILLS

Oils for hydrostatic steering Z 3320 - Z 7340 (tab. 4)

Manufacturer Classification
hydraulic oil ISO - L - HM 32
OH - HM 32

Plastic vaseline for Z 3320 - Z 7340 (tab. 5)

Manufacturer Classification
LITOL 24 GOST 21150.75
PM - LA 2 ISO 6743/9, ISO - L - XBCEA 2

Hydraulic brake fluids for Z 3320 - Z 7340 (tab. 6)

Manufacturer Classification
SYNTHOL 205 PND 31-656-80, ISO 4925, SAE - J 1703
Note:
1. Fluids of the same classification can be
mutually used.
2. Brake fluid must be exchanged minimally
once per two years independently on
operation hours.

Fuel (tab. 7)
Summer diesel fuel NM - 4 according to ČSN 656506 for period from 1.4.
to 31.10.
Winter diesel fuel NM - 22 according to ČSN 656506 for period from 1.11.
to 31.3.
Note:
Similarly the suitable fuels must be used abroad.

63
PLANNED TECHNICAL MAINTENANCE - USED LIQUIDS AND FILLS
Antifreeze for cooling system and heating Z 3320 - Z 7340 (tab. 8)
Antifreeze FRIDEX-STABIL or FRTIDIOL 91 and demineralized water in
ratio 1:1,5 (add the mixture in this ratio).
Antifreeze for exchanging abroad must contain anticorrosion additives
protecting all materials of cooling system and tractor heating (including
rubber parts and cylinder head gasket).
Note:
1. Antifreeze FRIDEX-STABIL and FRDIOL 91 are mutually mixable.
2. Above mentioned liquids must not be mixed with liquids of another
marks.
3. Exchange the liquid after two years.

64
 PLANNED TECHNICAL MAINTENANCE - USED LIQUIDS AND FILLS
Name, Destination Fill sort Z 3320 Z 4320 -
Z 3340 Z 7340
(in litres) (in litres)
coolant Fridex Stabil (Fridol 91) + demineralized
- w/o heating water 9,5 10,6
- w/ heating 10,5 11,6
fuel engine diesel 4, engine diesel 22 85
engine oil see (tab.1) 9,0 12,0
gear box and differential oil see (tab.2) 30,0 - 34,0 •
portal oil PP - 80 2 x 1,9
front drive axle housing oil Torque Fluid 62 (Rotra Multi THT) 5,5
front wheel drive planetary reduction housing oil Torque Fluid 62 (Rotra Multi THT) 2x0,6
front PTO shaft gearbox oil see (tab.2) 0,8
brake fluid HD 205 0,5
hydrostatic steering oil see (tab.4) 5,55
seat damper oil damper oil 0,07

•- Use 2 litres more of fluid on a tractor with front drive axle. The amount of fluid has to be increased by another 7 litres when
working on a slope with the tractor. The same holds for outer hydraulic circuit attached implements.

65
PLANNED TECHNICAL MAINTENANCE - LUBRICATION CHART

S471

66
 PLANNED TECHNICAL MAINTENANCE - LUBRICATION CHART
Pos. Lubrication point - inspection Fluid type
1 cooling system - coolant exchange antifreeze
2 pivot pin sliding bearing nipples PM - LA 2
3 engine - oil exchange see (tab. 1)
4 front wheel bearings PM - LA 2
5 FW rigid extensions (2 grease nipples) PM - LA 2
6 steering lever ball joints PM - LA 2
7 brake fluid reservoir Synthol 205
8 cab door hinges PM - LA 2
10 front wiper drive bearings see (tab. 5)
11 clutch release sleeve see (tab. 2)
12 steering wheel shaft column PM - LA 2
13 portal frames see (tab. 2)
14 disc brake rollers Termosize
15 telescopic control of lifting tie rod (1 nipple) PM - LA 2
16 right lifting tie rod of three-point hitch (1 nipple) PM - LA 2
17 tightening nuts of lower tie rods PM - LA 2
18 operator’s seat (handle and rollers of seat) PM - LA 2
19 rear wiper drive bearings see. (tab.5)
20 automatic traction gear for trailers (4 grease nipples) PM - LA 2
21 lower pin of three-point hitch support PM - LA 2
22 connecting rod of power control (1 grease nipple) PM - LA 2
23 lift assisting cylinder pins (2 or 4 lub. nipples) PM - LA 2
24 left-hand lifting arm journal PM - LA 2
25 power control torsion bar (1 grease nipple) PM - LA 2
27 operator’s seat suspension damper oil
28 push-pull cable of pick-up hitch, hand parking brake PM - LA 2
29 transmission see (tab. 2)
30 clutch disengagement shaft (2 grease nipples) PM - LA 2

67
 PLANNED TECHNICAL MAINTENANCE - LUBRICATION CHART
Pos. Lubrication point - inspection Fluid type
32 heating fan bearing see (tab. 2)
33 front PTO shaft universal joint PM - LA 2
34 front PTO shaft transmission casing see (tab. 2)
35 steering system oil reservoir see (tab. 4)
36 front three-point hitch journals PM - LA 2
37 battery distilled water
38 battery connecting cable terminals PM - LA 2

68
NOTE

69
NOTE

70
MAIN TECHNICAL PARAMETERS
Page
Technical data of engines Z 5201, Z 7201, Z 7701, Z 7301 ..................................... 72
Technical data of EKO engines Z 6203, Z 7203, Z 7703, Z 7303............................. 73

71
 MAIN TECHNICAL PARAMETERS
TECHNICAL DATA OF ENGINES Z 5201, Z 7201, Z 7701, Z 7301
Tractor model Unit Z 3320 / 3340 Z 5320 / 5340 Z 6320 / 6340 Z 7320 / 7340 Turbo
Engine model Z 5201 Z 7201 Z 7701 Z 7301
Engine type diesel, four stroke with direct fuel injection
Engine execution in line, water - cooled
Number of cylinders 3 4 4 4
Displacement cm3 2696,5 3922 3922 3922
Bore x stroke mm 102x110 102x110 102x120 102x120
Rated speed min-1 2200
Ignition sequence 1-3-2 1-3-4-2
Compression ratio 17
Max. overrun min-1 2440
Low idle speed min-1 700-50
Engine power kW 33,1 46 51 58
Specific fuel consumption at rated
speed g.kW -1.h-1 251 249 245 242
Engine lubrication pressure type with splashing
Max. engine oil consumption after
100 hour running in g.kW -1.h-1 0,8 0,9
Engine oil pressure at rated speed
and oil temperature 90°C MPa 0,2-0,5
Min. oil pressure at 700 RPM and
oil temperature 80°C MPa 0,05
Coolant temperature °C 80-95
Valve gear OHV
Oil cleaner full flow
Fuel cleaner full flow
Injection pump PP3M85K1e-3143 PP4M85K1e-3145 PP4M9K1e-3137 PP4M9K1e-3149
Nozzle DOP 160 S 430-1436
Injector opening pressure MPa 18,6 - 0,8
Timing angle ° 25 + 1
Valve clearance measurement at
cold engine
- suction mm 0,25 ± 0,05
- exhaust mm 0,25 ± 0,05
72
 MAIN TECHNICAL PARAMETERS
TECHNICAL DATA OF EKO ENGINES Z 6203, Z 7203, Z 7703, Z 7303
Tractor model Unit Z 4320 / 4340 Z 5320 / 5340 Z 6320 / 6340 Z 7320 / 7340 Turbo
Engine model Z 6203 Z 7203 Z 7703 Z 7303
Engine type diesel, four stroke with direct fuel injection
Engine execution in line, water - cooled
Number of cylinders 4 4 4 4
Displacement cm3 3922 3922 3922 3922
Bore x stroke mm 102x120 102x120 102x120 102x120
Rated speed min-1 2200
Ignition sequence 1-3-4-2
Compression ratio 17
Max. overrun min-1 2440
Low idle speed min-1 700-50
Engine power kW 43 46 48 57
Increased of torque % 15 15 15 15
Specific fuel consumption at rated
speed g.kW -1.h-1 245 246 248 248
Engine lubrication pressure type with spalshing
Max. engine oil consumption after
100 hour running in g.kW -1.h-1 0,8 0,9
Engine oil pressure at rated speed
and oil temperature 90°C MPa 0,2-0,5
Min. oil pressure at 700 RPM and
oil temperature 80°C MPa 0,05
Coolant temperature °C 80-95
Valve gear OHV
Oil cleaner fuel flow
Fuel cleaner fuel flow
Injection pump PP4M10P1f3463 PP4M10P1f3464 PP4M10P1f3465 PP4M10P1f3466
Injector VA 78S 250 3016
Nozzle DOP 160 S 428 - 4144
Injector opening pressure MPa 18,6 - 0,8
Timing angle ° 18 ± 0,5 14 + 1

73
 MAIN TECHNICAL PARAMETERS
TECHNICAL DATA OF EKO ENGINES Z 6203, Z 7203, Z 7703, Z 7303
Tractor model Unit Z 4320 / 4340 Z 5320 / 5340 Z 6320 / 6340 Z 7320 / 7340 Turbo
Valve clearance measurement at
cold engine
- suction mm 0,25 ± 0,05
- exhaust mm 0,25 ± 0,05

74
NOTE

75
Operator’s manual
Zetor 3320, Zetor 3340
Zetor 4320, Zetor 4340
Zetor 5320, Zetor 5340
Zetor 6320, Zetor 6340
Zetor 7320 Turbo, Zetor 7340 Turbo
Issue: I - 100 – 2001
Publication No.: 22.22.12.355

Zetor a.s.
Technical documentation dept.
Trnkova 111
BRNO, 632 00
76