RICH

Workshop Manual
General maintenance
RCHRM2S/5/1

Daroupakhsh St.17th Km Karaj Makhsoos Road-TEHRAN-IRAN

General maintenance
 Maintenance GI

MA MA

EM

Table of Contents
LC

Considerations and Preparation........................... 1 Inspect the clutch fluid level and the liquid
Special Maintenance Tools.................................. 1 leakage................................................................ 21 EC

General Maintenance Tools................................. 1 Inspect the clutch system.................................... 21

Pre-delivery inspection items.............................. 2 Inspect the manual transmission oil................... 21 FE

General maintenance........................................... 3 Replace the manual transmission oil.................. 21

Periodic maintenance.......................................... 4 Inspect the water intake condition (4WD CL

model) ................................................................ 22
Engine and emission control maintenance.......... 4
Inspect the splitter oil......................................... 22
Chassis and body maintenance............................ 6 MT
Replace the splitter oil........................................ 23
Maintenance under the severe driving
conditions............................................................ 7 Inspect the drive shaft......................................... 23
AT
Recommended oils and lubricants...................... 8 Lubricate the drive shaft..................................... 23

Oil and lubricant.................................................. 8 Inspect the differential oil................................... 23

TF
SAE viscosity value............................................ 9 Replace the differential oil.................................. 24

Recommended fuel.............................................. 11 Wheel balance..................................................... 24

PD
Coolant mix ratio................................................. 11 Tire inspection.................................................... 24

Engine maintenance............................................ 12 Tire location exchange........................................ 24

FA
Inspect the drive belt........................................... 12 Inspect the brake oil level and the leakage......... 25

Replace the engine coolant.................................. 13 Inspect the brake system..................................... 25

RA
Inspect the cooling system.................................. 14 Replace the brake fluid....................................... 25

Inspect the fuel pipeline...................................... 15 Inspect the disc brake.......................................... 25

BR
Replace the fuel filter.......................................... 15 Inspect the drum brake........................................ 26

Replace the air filter cartridge............................. 16 Inspect the steering gear and its linkage
ST
mechanism.......................................................... 27
Replace the engine oil......................................... 17
Inspect the power steering fluid and the
Replace the oil filter............................................ 18 pipeline............................................................... 27 RS
Inspect and replace the spark plug (ZG24 Lubricate engine hood lock, door lock, stopper
model) ................................................................ 18 and hinges........................................................... 28 BT
Inspect the high-voltage wiring.......................... 19 Inspect the seat belt, the buckle, the shrink
Inspect the positive crankcase ventilation device, the holder and the regulator.................... 29
(PCV) system...................................................... 20 HA
Maintenance data and specifications (SDS) ...... 30
Chassis and body maintenance............................ 21 Engine Maintenance (MA) ................................ 30
Inspect the exhaust system.................................. 21 EL
Chassis and body maintenance........................... 30

PG
 Considerations and Preparation

Precautions and Preparation GI

Special Maintenance Tools
Serial No. Tools Tool Name diagram example Instruction MA

Oil filter wrench Remove and install the oil filter EM

LC

EC
Radiator cover tester fitting Inspect the radiator cover and the radiator

FE

CL
Fuel filter wrench Remove the fuel filter

MT

General Maintenance Tools AT

Serial No. Tools Tool Name diagram example Instruction
TF

Power tool Loosen bolt and nut

PD

FA

Spark plug wrench Remove and install the spark plug

RA

BR

ST

RS

BT

HA

EL

PG

EM-1
 Pre-delivery inspection items

Pre-delivery inspection items

The following items must be inspected before delivering the new vehicles. In addition to the following items, it is
recommended to add some necessary inspection items and pay them according to the actual conditions.
The specifications for the appropriate inspection items based on a variety of model can be found in this section.
Under the engine hood - the engine does not operate Underbody
□ Inspect the radiator coolant level and the coolant hose □ Liquid levels in manual transmission / transaxle gear
fittings for leaks oil, splitter liquid and differential gear oil
□ Battery fluid level, specific weight and battery □ Inspect the brake, the fuel pipes and the oil / liquid
terminal conditions tanks for leaks.
□ Drive belt tension □ Tighten the bolts and nuts on the steering linkage
□ Inspect the fuel filter for the water or the dust, and mechanism and the gear box, the suspension, the
the fuel pipes and fittings for leaks transmitting shaft and the drive shaft
□ Inspect the engine oil level and oil leaks Tighten the bolts and nuts on the rear body (on the
□ Inspect the clutch and the brake fluid level and the oil models equipped with wooden floor only)
tubing for leaks
□ Inspect the liquid levels in the windshield and rear Road test
window and headlight washer tank □ Clutch performance
□ Inspect the power steering fluid level and the hose □ Parking brake performance
fittings for leaks □ Main brake performance
Automatic transmission / transaxle lifting gear
Inspect the interior and exterior of the vehicle condition
□ Remove the front spring / shock absorber spacer (if □ Steering control and its return performance
adopted) □ Engine performance
□ Inspect the functions of all equipment, instruments, □ Body squeaks and rattles
lighting and accessories
□ Inspect the functions of the speaker, the wiper and the
Engine operation and heating
washer
□ Inspect or adjust the idle speed (and the ignition
□ Inspect the function of the steering lock
timing)
□ Inspect the air conditioner for leak
□ Inspect the gear oil levels in the automatic
□ Inspect the functions of the front and rear seat belts transmission and the transaxle
□ Inspect the fit and alignment of all molded parts,
interiors and accessories
Final inspection
□ Inspect the functions and alignment of all windows
□ Install the necessary components (such as exterior
□ Inspect the fit and alignment of engine hood, luggage backview mirrors, wheel guard covers, seat belts, floor
compartment cover and door panel mats, carpets, fenders, etc.)
□ Inspect the functions of lock pin, key and lock □ Inspect the inner and outer metal and paint surfaces
□ Inspect the sealing strip bonding and fitting for damage
conditions □ Inspect the spare tire, jack, tools (wheel chocks,
□ Inspect the headlight beam warning signs) and attaching documents, etc.
□ Tighten the wheel nuts (if used, the inside nuts are □ Clean the inside and outside of the vehicle
also included)
□ Tire pressure (including the spare tire)
□ Inspect the front toe
□ Install the inner fuses
□ Install the deodorization filter on the air purifier. (if
used)
□ Remove the wiper blade sheath (if used)

EM-2
 General maintenance

General maintenance GI
The general maintenance items include the necessary inspection items in daily operations, and are the basic
maintenance items required for the normal operation of the vehicle.
MA
Item Refer to
Vehicle outside
EM
Unless otherwise specified, the maintenance items listed here must be regular performed.
Tire: The tire pressure should be inspected regularly with the pressure gauge on the service station; if necessary,
it should be adjusted to the required pressure. Inspect carefully any scratch or excessive wear and damage. LC
Wiper blade: If the wiper blade has a poor function, inspect it for cracks or wear.
Doors and engine hood: Inspect all doors, engine hood, luggage compartment cover and back door for normal EC
actions; while make sure that all safely latches are locked. If necessary, lubricate hinges, latches, lock cylinders
MA-28
and connecting rods. Confirm that the vice latch can close the engine hood when the primary latch is opened.
When driving on the roads with salt or other corrosive materials, always inspect the lubrication conditions.
FE
Tire position exchange: perform one tire position exchange every 10,000 km (6000 miles) for 2WD models, and
MA-24
every 5000 km (3000 miles) for 4WD models.
Vehicle interior CL
The maintenance items listed here should be performed regularly, for example, they can be performed in the
regular maintenance or the vehicle cleaning.
MT
Lighting: make sure that headlights, brake lights, tail lights, turn signals and other lights can work properly and
are installed securely; and inspect the headlight beam.
Warning lights and alarms: make sure that all the warning lights and alarms can work properly. AT
Steering wheel: Inspect the steering changes, for example, whether the spare travel and the steering force are too
large and whether there is a steering noise. Free clearance: less than 35mm (1.38in)
TF
Seat belt: Inspect whether all parts of the seat belt system (such as, clasps, bearings, adjusters and contraction
device) can work properly and stably, whether their installation is reliable; and inspect the braid seatbelt for cuts, MA-29
cracks, wear or damage.
PD
Under the engine hood and the vehicle
The maintenance items listed here should be performed regularly, for example, the engine oil should be inspected
or the fuel should be added at every time. FA
Windshield cleaning fluid: Inspect whether there is sufficient cleaning fluid in the liquid tank.
Engine coolant level: Inspect the engine coolant level under the cold condition. MA-14
RA
Engine oil level: Park the vehicle on a level road surface, turn off the engine and inspect the engine oil level. MA-18
Brake and clutch oil levels: Confirm the brake and clutch oil levels between “MAX” and “MIN” lines on the oil
MA-21, 25 BR
tanks.
Battery: Inspect the battery fluid level between “MAX” and “MIN” lines in each battery unit.
ST

RS

BT

HA

EL

PG

EM-3
 Periodic maintenance

Periodic maintenance
The regular maintenance items and intervals are listed in the following table. Depending on weather and
atmospheric conditions, different roads, personal driving habits and vehicle usage, additional or more frequent
maintenance items may be required.
CAUTION:
When the maintenance cycle listed in the table every time is reached, these items should be maintained.

Engine and emission control maintenance

Diesel engine
Abbreviations: R = Replace; I = Inspect and correct or replace if necessary; A = Inspect and adjust if necessary; C
= Clean; L = Lubricate; T = Tighten
Maintenance Maintenance intervals
operation
Counted by km or km×1000 1.5 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100
months,
whichever occurs Months 1 3 6 9 12 15 18 21 24 27 30 33 36 39 42 45 48 51 54 57 60
first.

Under the engine hood and the vehicle

Intake and exhaust pipe nut

I A A A A A A A A A A
torque
Inlet and exhaust valve
A A A A A A A A A A
clearance

Drive belt I I I I I I I I I I I I

Engine anti-frozen coolant

R R R R R
(glycol-based)

Cooling system I I I I I I I I I I

Fuel pipe I I I I I

Air filter cartridge (dry paper

C C C R C C C R C C C R C C C R C C C R
type) ★
Engine oil (API CF-4 oil) and
R R R R R R R R R R R R R R R R R R R R R
oil filter

Fuel filter★ R R R R R

Vacuum hose and connector I I I I I I I I I I

Injector and fuel pump plunger A A A A A

Note: The maintenance items with “★” must be maintained more frequently according to the requirements in
“Maintenances under Severe Driving Conditions”.

EM-4
 Periodic maintenance

Gasoline engine GI
Abbreviations: R = Replace; I = Inspect and correct or replace if necessary; A = Adjust; C = Clean
Maintenance intervals
Maintenance operation MA
Counted by km or months, whichever occurs Km×1000 1.5 5 10 15 20 25 30 35 40
first.
Months 1 3 6 9 12 15 18 21 24 EM
Under the engine hood and the vehicle
Intake and exhaust pipe nut torque I LC
Inlet and exhaust valve clearance A A A A
Drive belt I*1 I*1 I I*1 I EC
Engine anti-frozen coolant (glycol-based) R R
Cooling system I I I I FE
Fuel pipe C C C R C C C R
Air filter cartridge (dry type) ★ R R R R R R R R CL
Engine oil (API SL and higher grade) and oil filter R
Fuel filter★ R R MT

Spark Plug R R
Ignition wiring I AT

Positive crankcase ventilation (PCV) system I

Vacuum hose and connector I I I TF

EVAP pipeline I
Heated oxygen sensor (exhaust sensor) I PD

Note: The maintenance items with “★” must be maintained more frequently according to the requirements in
“Maintenances under Severe Driving Conditions”. FA

RA

BR

ST

RS

BT

HA

EL

PG

EM-5
 Periodic maintenance

Chassis and body maintenance

Abbreviations: R = Replace; I = Inspect and correct or replace if necessary; C = Clean; L = Lubricate; T = Tighten
Maintenance Maintenance intervals
operation
Counted by km km×1000 1.5 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100
or months,
whichever occurs Months 1 3 6 9 12 15 18 21 24 27 30 33 36 39 42 45 48 51 54 57 60
first.

Under the engine hood and the vehicle

Brake fluid, clutch fluid and

I I I I I I I I I I I I I I I I I I I I I
power steering fluid

Brake fluid ★ R R R R R

Power steering fluid and pipe I I I I I I I I R I I I I I I I R I I I I

Brake booster vacuum tube,

I I I I I
connector and check valve
Brake, clutch and exhaust
I I I I I I I I I I I I I I I I I I I I I
systems
Manual transmission oil (liquid
I I R I I I I I I I R I I I I I I I R I I
level and leakage)

Splitter oil I I I I R I I I I I I I R I I I I I I I R

Front and rear main reducer oil I R I I I R I I I R

Steering gear and coupling

joint, shaft and suspension I I I I I I I I I I I I I I I I I I I I I
components and drive shaft ★

Steering damper I I I I I I I I I I

Body assembly T T T T T T T T T T T

Exterior and interior

Wheel alignment, and wheel

I I I I I I I I
balancing if necessary
Brake shoe, brake disc and
I I I I I I I I I I I I I I I I I I I I
other components ★
Brake pad, brake hub and the
I I I I I I I I I I
other brake components ★
Front wheel bearing grease
R R R
(4×2)
Front wheel bearing
R R R R R
grease(4×4)
Lock, hinge and engine hood
L L L L L L L L L L L L L L L L L L L L
hook ★
Seat belt, clasp, winder, hinged
I I I I I I I I I I
seat and regulator
Foot brake, parking brake and
clutch (free travel and I I I I I I I I I I I I I I I I I I I I
operation)

Note: The maintenance items with “★” must be maintained more frequently according to the requirements in
“Maintenances under Severe Driving Conditions”.

EM-6
 Periodic maintenance

Maintenance under the severe driving conditions GI

The maintenance intervals described in the above page are suitable for normal operation conditions. If the vehicle
is often operated under the following severe driving conditions, the items described in the following table should
be maintained more frequently. MA

Severe driving conditions EM

A- Driving in dusty conditions.
B- Driving for repeated short distance.
LC
C- Driving with a trailer.
D- Long-time idling driving.
E- Driving in extreme unfavorable weather conditions or in regions under extremely high or low ambient EC
temperatures.
F- Driving in very humid area or mountain area.
FE
G- Driving on the road with salt or other corrosive materials.
H- Driving in rough, muddy or desert roads.
I- Driving with frequent brakes or in the mountains. CL

J- Driving often in the water.

MT
Maintenance operations: Inspect = inspect, correct or replace if necessary.
Maintenance Maintenance
Driving conditions Maintenance items AT
operation intervals
A • • • • • • • • • Air filter Clean / replace More frequent
Every 2500 km or TF
A B C D • • • • • • Engine oil Replace
1.5 months
Every 2500 km or
A B C D • • • • • • Engine oil filter Replace PD
1.5 months
A • • • E • • • • • Fuel filter Every 10,000 km
• • • • • F • • • • Brake fluid or 6 months FA

Steering gear, coupling joint and shaft,

• • • • • • G H • • suspension component, drive shaft, front Inspect Every 2500 km or RA
steering shaft 1.5 months
A C • • • • G H I • Brake shoe, brake disc and other components Inspect
Every 5000 km or BR
A C • • • • G H I • Brake pad, hub and other brake components Inspect
3 months
Front bearing grease and wheel hub grease
• • • • • • • • • J Inspect Every 2500 km or ST
(4×4)
1.5 months
• • • • • • G • • • Lock, hinge and engine hood hook Lubrication
RS

Off-road maintenance (only on 4×4 models)

During off-road driving, after passing through sandy, muddy or wading, the following maintenance items may be BT
performed more frequently.
▲ Brake lining and brake disc.
HA
▲ Brake shoe and brake drum.
▲ Brake pipe and hose.
▲ Wheel bearing grease and free rotation hub grease. EL
▲ Differential oil, gearbox oil and splitter oil.
▲ Steering linkage. PG
▲ Transmission shaft and front drive shaft.
▲ Air filter cartridge.
▲ Clutch housing.

EM-7
 Recommended oils and lubricants

Recommended oils and lubricants

Oil and lubricant
The actual filling capacity may vary slightly, and should be inspected when filling (inspection with the dipstick).
Approximate capacity (L) Recommended fuel / lubricants
Gasoline Further details, see “Recommended
Fuel *1 60
Diesel Fuel”
Engine oil (drain fully before filling)
ZD25TCR 2WD 7.2
ZD25TCI 4WD 6.3
QD32T 7
CYQD80 7
ZD30D13-3N 8.5 • API certification mark *2
2WD 8.5 •API CF-4*
ZD30D13-4N2 Including the oil filter
4WD 6.2
2WD 4.6
ZD22TE
4WD 4.0
ZD28D11-4DA 6.0
4RB2 4.5 • API certification mark *2
ZG24 4.5 • API SL*2
Cooling system (with heater and liquid tank)
Original ZNA antifreeze or equivalent
Antirust and antifreeze liquid 9.5
product
Manual transmission gear oil
7B5
7BM5 2.2
7B7
7BM7 2.3
8B2 3.2
8B4 3.2
038T1 3.2
_ 75W/90 (API GL-4) gear oil
8B5 3.2
8B7 3.2
8GD 2.7
038T 2.7
8GD7 2.7
JC530T4B 2.7
JC530T4B1 2.7
Splitter oil
KONE manual type 2.6 75W/90 (API GL-4) gear oil
SPEC40-00-244-001ATF Texaco
Borg Warner manual type 1.2
Long Ⅲ
Differential oil
Front axle differential 1.3 80W/90 (APL GL-4) gear oil
Rear axle differential 1.6 HE 90S gear oil
Power steering system
Power steering fluid 1.0 ～ 1.1 ATF DX

EM-8
 Recommended oils and lubricants

GI
Approximate capacity (L) Recommended fuel / lubricants
Brake and clutch system
Brake and clutch system 0.6 DOT4 synthetic brake fluid MA

Bearings and ball pins

Lithium grease As required Lithium grease EM

* 1: For further details, see “Recommended Fuel”. LC

* 2.For further details, see “Recommended SAE Engine Oil Viscosity Grade”.

EC
SAE viscosity value
Recommended SAE engine oil viscosity:
FE

Evaluate the outdoor temperature range before the next oil change Evaluate the outdoor temperature range before the next oil change

CL
Diesel engine oil Gasoline engine oil

MT

AT

TF

PD

Not recommend for continuous

high speed driving FA

Not used for continuous

high-speed driving
RA

BR

ST
Diesel engine Gasoline engine
• In warm and cold region: 10W-30 is suitable for use • In cold and warm region: 10W-30 is suitable for use
RS
under the ambient temperature of -20℃ or above. under the ambient temperatures of -20℃ or above.
• In hot area: 20W-40 and 20W-50 are applicable. • In hot area: 20W-20 and 20W-50 are applicable.
BT

HA

EL

PG

EM-9
 Recommended oils and lubricants

Expected outdoor temperature range before the next gear oil replacement

Gear oil

Recommended SAE gear oil viscosity:

• In cold and warm region: 75W-90 is suitable for the transmission, and 80W-90 is suitable for the differential
drive gear.
• In all regions: 75W-90 is suitable for the manual gearbox.
• In hot region: 90 is suitable for use under the ambient temperature of 40℃or below.

EM-10
 Recommended oils and lubricants

Recommended fuel GI
Gasoline models
Use the unleaded petrol with the octane number (RON) of 93 (92 in Beijing) and above (or ethanol gasoline).
MA
CAUTION:
• If the specified fuel is not used, the emission control system will be seriously affected, as well as the control
range. EM
• In any case, do not use leaded gasoline, which can seriously damage the catalytic converter.
LC
Notes about octane number
• The use of unleaded gasoline with the octane number of less than 93 will cause persistent and heavy knock,
which is a similar metal knock sound; even can cause serious engine damage. If a heavy knock occurs when EC
using the above fuel or a steady knock occurs when driving with the stable speed on the level road, the
timely maintenance should be performed.
FE
• Incorrect ignition timing or engine overheating will result in knock, which can cause the fuel consumption
increase and the engine damage.
• When accelerating or climbing on a slop road, a slight knocking sound can occur occasionally. It can not CL
be worried out, because a slight knocking sound shows that the highest fuel efficiency is achieved under the
large engine load.
MT

Diesel models
Refer to the following table, select the diesel according to the different environment conditions: AT
Brand Applicable environment and scope
0# diesel Risk rate is 4% on the areas with the minimum temperature 8 ℃ or above TF
-10 diesel Risk rate is 10% on the areas with the minimum temperature -5 ℃ or above
-20 diesel Risk rate is 10% on the areas with the minimum temperature -14 ℃ or above PD
-35 diesel Risk rate is 4% on the areas with the minimum temperature -29 ℃ or above

FA
CAUTION:
• If the specified fuel is not used, the emission control system will be seriously affected, as well as the control
RA
range.
• When there is the diesel mark on the filler cap, the recommended diesel should be used.
BR
Notes about the use of diesel grades
Please use the vehicle diesel with the grade of 0 or above according to the National III/IV requirements. ST

Coolant mix ratio

RS
The engine cooling system should be filled with the high quality and full-year universal antifreeze coolant in the
factory. The rust and corrosion inhibitors have been contained in the antifreeze coolant, and are not required to be
added in the engine cooling system. BT
CAUTION:
When supplying or replacing the coolant, only the glycol antifreeze coolant with a suitable mixing ratio can
be used. HA
See the following table:
Minimum ambient temperature EL
Antifreeze Softener
0℃ 0℉
-15℃ 5℉ 30% 70% PG
-35℃ -30 ℉ 50% 50%
The use of other type of coolant may damage the cooling system.

EM-11
 Engine maintenance

Engine maintenance
Inspect the drive belt

Power steering pump

Compressor
Water pump

Generator

Tensioner wheel
Water pump

Generator
Compressor

Pulley, crankshaft
Pulley, crankshaft

Compressor

Mechanical fan belt pulley Generator

Tensioner wheel
Water pump
Tension
er wheel

Compressor
Power steering
pump

Generator
Idler wheel
Pulley, crankshaft

Pulley, crankshaft

Generator

Idler wheel

Compressor Idler wheel

Power steering
pump

Pulley, crankshaft Tensioner wheel

1. Inspect for cracks, burrs, wear or oil adhesion; if necessary, replace it with a new product.
2. Press the belt between the two pulleys to inspect the drive belt offset.
CAUTION:
The drive belt offset should be inspected under the engine cold state. If the belt offset exceeds the limit, it
should be adjusted.
Belt offset to be used
Newly installed belt offset, mm (in)
Limitmm (in) Adjusted belt offset, mm (in)
Alternator 12 (0.47) 8-10 (0.31-0.39) 7-8 (0.28-0.31)
Power steering pump 16 (0.63) 10-12 (0.39-0.47) 8-10 (0.31-0.39)
A/C compressor 13 (0.51) 8-10 (0.31-0.39) 6-6 (0.24-0.31)
Applied thrust force

EM-12
 Engine maintenance

GI
Replace the engine coolant
Warning:
To avoid the burns, do not replace the coolant under the hot MA
engine state. Drain the engine coolant
1. Move the heater temperature control lever to “HOT”
EM
position.
• Place the air conditioning switch on “OFF” position.
LC

EC

2. Open the drain plug at the bottom of the radiator and remove
Front
the radiator cap. FE
3. Remove the water tank, drain the coolant, clean the water
tank, and install temporarily it.
• Do not spill the coolant on drive belt. CL
Remove

MT
Radiator drain plug

AT

TF

Radiator cover
PD
Remove

FA

RA

BR
4. Remove the cylinder drain plug.
5. Install the radiator drain plug and the cylinder drain plug and
tighten them. ST
Drain plug
6. Fill water into the radiator and the water tank, and re-install
the radiator cap. RS
7. Fully warming up the engine, and then rotate it with no-load
at high-speed for 2~3 times.
8. Stop the engine, and cool it completely. BT

9. Repeat Steps 2-8 until that the clean water is drained from the
radiator. HA
10. Drain the water.
Refill the engine coolant
EL
• Apply the sealant on the thread section of the cylinder drain
plug.
: 34-44N•m (3.5-4.5kg-m, 25-33ft-lb) PG
11. Install the water tank, the radiator drain plug and the
cylinder drain plug, and tighten them.
12. Fill the coolant onto the radiator and the water tank to the
required level, and then install the radiator cap.

EM-13
 Engine maintenance

Coolant mixing ratio, see MA-11.

Radiator

Coolant capacity
Tank capacity (maximum level): 0.61L
Fill slowly the coolant from the filler neck to drain the air in the
system.

Inspect the cooling system

Inspect the hose
Inspect whether the hose is connected properly and whether there are leaks, cracks, damage, loose joints, wear and
corrosion.
Inspect radiator cover
Increase the radiator pressure with the radiator cap tester to see
whether it can meet the requirements.
Radiator cover release pressure:
Standard value 78-98kPa
(0.78-0.98bar, 0.8-l.0kg / cm2, 11-14psi)
Limit value 59-98kPa
(0.59-0.98bar, 0.6-1.0kg / cm2, 9-14psi)

Pull the negative pressure valve to open it, to inspect whether

the valve is fully closed when releasing.

EM-14
 Engine maintenance

GI
Inspect the cooling system for leaks
Connector, hose Increase the pressure in the cooling system with the radiator cap
tester, and inspect it for leaks. MA
Test pressure:
157kPa (1.57bar, 1.6kg / cm2, 23psi)
EM
CAUTION:
If the pressure exceeds the predetermined value, the
radiator may be damaged. LC

EC
Inspect the fuel pipeline
Inspect whether the fuel pipe and the fuel tank are connected
FE
properly, whether there are leaks, cracks, damage, wear or
Fuel pipe corrosion; if necessary, repair or replace it.
Engine Fuel tank
CL

MT

AT

Unit
TF

PD

FA

RA

Replace the fuel filter

BR
1. Remove the fuel filter from the bracket.
Frame
2. Loosen the hose clamps.
3. Replace the fuel filter. ST
• Dip the fuel with some cotton silk and do not flow the fuel
into the engine compartment.
RS
Fuel filter • Use the high-pressure fuel filter, and do not use the synthetic
resin fuel filter.
• Tighten the fuel pipe clamps (see the related contents of “Fuel BT
Pipe Inspection”.

HA

EL

PG

EM-15
 Engine maintenance

Dry paper type GI

Must clean or replace the filter cartridge within the
recommended maintenance cycle, and perform the more MA
frequent maintenance when driving in dusty environments.

EM

LC

EC
Replace the engine oil
Oil filler cap
Warning: FE
• When the engine oil is hot, be careful not to burn yourself.
• Repeated and long-time exposure to engine oil can cause
the skin cancer, and try to avoid its direct contact with the CL
Oil filter
skin.
• The waste oil built on the skin should be washed MT
Loosening thoroughly with soap or hand sanitizer as soon as possible.
Oil drain plug 1. After warming up the engine, inspect the engine components
for oil leakage. AT
2. Stop the engine and wait for ten minutes.
3. Remove the drain plug and the oil filler cap. TF
4. Drain completely the used oil, and refill the new engine oil.
Oil specification and viscosity:
PD
Diesel engine: API CF-4, CH, CI grade
Gasoline engine: API SL grade, SM grade and SN grade, see
“Recommended Oils and Lubricants”. FA

Oil filling capacity (about): Unit: L

RA
Engine oil (drain fully before filling)
ZD25TCR/ZD25TCI 2WD 7.2
4WD 6.3 BR
ZD25TCI
CYQD80 7
ZD30D13-3N 7 ST
*1
ZD30D13-4N2 8.5 • API certification mark
2WD 8.5 •API CF-4*1
Including the oil filter RS
ZD30D13-4N2
4WD 6.2
2WD 4.6
ZD22TE BT
4WD 4.0
ZD28D11-4DA 6.0
• API certification mark *1 HA
4RB2 4.5
• API SL*1
*1. For further details, see “Recommended SAE Engine Oil Viscosity Grade”. EL
CAUTION:
• Be sure to clean the drain plug and install the new gasket. PG
Oil sump drain plug:
: 29-39N•m (3.0-4.0kg-m, 22-29ft-lb)
• The oil filling capacity varies with the oil temperature and the drain time. “Oil filling Capacity” provided above
is for reference only, and be sure to inspect the oil level with the oil stick.

EM-17
 Engine maintenance

5. Inspect the oil level.

6. After warming-up the engine, and inspect around the drain
plug and oil filter fro leaks.
7. Stop the engine and wait for ten minutes.
8. Inspect the oil level.
Fill the oil to “H” position,
and can not fill too much
oil.

Replace the oil filter

1. Remove the oil filter with an appropriate tool.
Warning:
Be careful not to be burned by the engine and the oil.

2. Clean the oil filter mounting surface on the cylinder, and

apply a small amount of oil on the rubber seal ring of the new
oil filter.

3. Install the oil filter with a small resistance, and tighten it for
2/3 turns again.
4. Fill the engine oil.
2/3 turns Refer to MA-17, “Engine Oil Replacement”.

Inspect and replace the spark plug (ZG24 model)

1. Seize the pouches and remove the high voltage wiring.
CAUTION:
Do not pull the high-voltage wiring.

EM-18
 Engine maintenance

GI
2. Remove the spark plug with a spark plug wrench.
3.Clean the spark plug.
4. Inspect the insulation for cracks or damage, the gasket for MA
damage or deform, the electrode for wear or burning. If the
electrode is severe worn, replace it with a new one.
EM
Spark Plug:
Type K7RTCU
LC
The standard type spark plug is used under the normal cases.
In the following cases, if the use of standard type spark plug
can produce some coke, a hot-type spark plug can be used. EC
• Frequent engine start.
• Low ambient temperature.
FE
In the following cases, if the use of standard spark plug can
produce the ignition knocking, detonation occurs, a cold type
spark plug can be used. CL
• Continued driving on the road.
• Frequent high-speed engine operation.
MT

Side electrode
5. Inspect the spark plug clearance.
Clearance: 1.0-1.2mm (0.039-0.047in) AT

6. Install the spark plug. Connect the high-voltage wiring to the

Clearance spark plug according to the number on the high voltage wiring. TF
Spark Plug:
: 20-29N•m (2-3kg-m, 14-22ft-lb)
PD

FA

Inspect the high-voltage wiring RA

1. Inspect the high-pressure cylinder wiring for cracks or
damage, and the wiring terminal for burning and normal BR
connection.
2. Measure the high-pressure cylinder wiring resistance, and
inspect the high-pressure cylinder wiring for intermittent open ST
circuit.
Resistance:
RS
9.6-22.4kΩ/m (2.93-6.83kΩ/ft)
If the value exceeds its limit, replace it with a new one.
BT

HA

EL

PG

EM-19
 Engine maintenance

Inspect the positive crankcase ventilation (PCV)

Inspect PCV valve
When the engine is operated at idling, if PCV valve works properly, remove the vent hose from PCV valve, a hiss
can be heard; put a finger on the valve port, a strong attraction can be felt immediately.

Inspect the vacuum hoses and their connection

Inspect whether the vacuum hose is connected correctly, and whether there are leaks, cracks, damage, loose joints,
wear and corrosion.

Inspect the vent hose

1. Inspect hoses and fitting for leaks.
2. Disconnect all hoses, clean then with compressed air, and replace the hose that can not be cleaned.

Inspect the fuel evaporation pipe

EVEP steam pipe
Vacuum pipe (from the 1. Visually inspect whether the fuel evaporation pipes are
throttle body)
EVEP canister
connected properly, and whether there are cracks, damage,
EVEP cleaning pipe
loose joints, wear and corrosion.
2. Inspect the vacuum release valve on the fuel tank filler cap
for blocking or jamming.
Leading to the intake manifold

From the fuel tank

EM-20
 Chassis and body maintenance

GI
Chassis and body maintenance
Inspect the exhaust system
Inspect whether the exhaust pipe, muffler and mounting bracket MA
are installed properly, and whether there are leaks, cracks,
damage, loose connection, wear and corrosion.
EM

LC

EC
Inspect the clutch fluid level and the liquid leakage
Inspect whether the liquid level in the tank is with the specified FE
range (MAX-MIN) to. If the level is too low (below MIN line),
inspect the clutch system for leaks and visually inspect the leaks
around the tank. CL

MT

AT

Inspect the clutch system TF

1. Inspect whether the hydraulic pipe and the working cylinder
are connected correctly, and whether there are cracks, damage,
loose joints, wear or corrosion. PD
2. Depress the clutch pedal during the engine operation, to
inspect the system for fluid leaks.
FA

RA

BR
Inspect the manual transmission oil
Inspect the oil level and oil leaks. When inspecting the oil level,
do not start the engine. ST
Filler plug:
: 30-48N•m (3.1-4.9kg-m, 22.5-36ft-lb) RS
After inspection, tighten the filler plug to the specified
torque.
BT
Filler plug Fill the oil to this level
Replace the manual transmission oil
1．Drain the oil add new gear oil through the oil drain plug. HA
2．Inspect the oil level.
3. Tighten the filler plug to the specified torque. EL
Oil drain plug:
: 35-53N•m (3.6-5.4kg-m, 26.3-39.75ft-lb)
PG

EM-21
 Chassis and body maintenance

Transmission oil capacity and specifications:

Transmission type Transmission oil capacity (L) Transmission oil specifications
7B5
7BM5 2.2
7B7
7BM7 2.3
8B2
8B4
038T1 3.2
75W/90 (API GL-4) gear oil
8B5
8B7
8GD
038T
8GD7 2.7
JC530T4B
JC530T4B1

Inspect the water intake condition (4WD model)

Remove the rubber seal, and inspect the water immersion in the
clutch housing when driving in deep water or muddy road.
Engine

Transmission
Hose seal ring

Inspect the splitter oil

1. Clean the oil filler plug and its surrounding area.
2. Unscrew the filler plug and inspect the oil flow.
3. That the fluid can not flow indicates that the actual oil
amount is below the specified value, and the specified oil
should be filled into the splitter. See “Splitter Oil Replacement”.
4. Tighten the filler plug to the specified torque.
Filler plug:
: 19-30N•m (1.9-3.1kg-m, 14.3-22.5ft-lb)
CAUTION:
• Before inspecting or replacing the oil, the vehicle shall be
5L- Oil filler plug operated for a certain time to increase the oil temperature in
the splitter. Do not remove or tighten the drain plug and
5D- Oil drain plug
filler plug with a hammer or other impact tool, otherwise it
will destroy the screw holes on the housing.
• Inspect the oil level and leaks.
• Fill the specified oil in the actuator in the factory.
• When inspecting the oil level, do not start the engine.

EM-22
 Chassis and body maintenance

GI
Replace the splitter oil
1. Clean the filler plug and the drain plug and surrounding area.
In front of the vehicle
2. Place an oil container under the splitter. MA
3. Unscrew the drain plug.
4. Unscrew the filler plug. EM
Oil drain plug
5. Drain the oil.
6. Tighten the drain plug to the torque of 19-30N • m
(3.1-4.9kg-m, 22.5-36ft-lb). LC
7. Fill the oil through the filler hole, the oil level should be
0-5mm (0-0.1969in) to the lower edge of the filler hole in the EC
splitter (reference volume: 1.2L).
8. Tighten the filler plug to the torque of 19-30N • m
(3.1-4.9kg-m, 22.5-36ft-lb). FE

When completely replacing the splitter oil, use the following oil specifications and capacity: CL
Splitter oil Capacity Size Notes
(L)
MT
KONE manual 2.6 75W/90 (API GL-4) gear oil Applicable for ZG24 / ZD22TE 4WD models
type
Borg Warner 1.2 SPEC40-00-244-001ATF Texaco Applicable for ZD25/QD80/ZD30/ZD28 4WD models AT
manual type Long III

Inspect the drive shaft TF

Inspect the bearing neck for
Rear wear or damage
Inspect the driveshaft for dents, cracks, wear, damage,
loosening or grease leakage. PD
Tightening torque:
Inspect the intermediate bearing
for noise or damage
See “PD”
FA
Inspect the pipe surface for
depressions or cracks

Inspect the tightening torque RA

Front
Lubricate the drive shaft BR
Inspect the shaft
journal for wear Inject the specified lubricant in the nozzles on the transmission
shaft.
ST
Grease specification:
Inspect the tube surface for
NLGINO2 molybdenum disulfide lithium grease
pits or cracks RS

Inspect the tightening torque

Lubrication point BT

Inspect the differential oil HA

Inspect the oil level and leaks.
Filler plug: EL
Front : 39-59N•m (4-6kg-m, 29.25-44.25ft-lb)
Rear : 65-90N•m (6.6-9.2kg-m, 48.75-67.5ft-lb)
PG

EM-23
 Chassis and body maintenance

Front
Replace the differential oil
1. Drain the oil add new gear oil through the oil drain plug.
2. Inspect the oil level.
Filler plug Oil specifications and capacity:
Differential oil
Front axle differential 1.3 80W/90 (API GL-4) gear oil

Fill the oil to this level

Rear axle differential 1.6 HE90S gear oil
Oil drain plug

Oil drain plug:

Rear Front : 39-59N•m (4-6kg-m, 29.25-44.25ft-lb)
Rear : 65-90N•m (6.6-9.2kg-m, 48.75-67.5ft-lb)

Filler plug

Fill the oil to this level

Wheel balance
Adjust the wheel alignment with the wheel dynamic balancing machine.
Dynamic balancing (at the rim ring) g (oz) 10 (0.35) - side
Maximum allowable imbalance
Static balancing g (oz) 20 (0.71)

Tire inspection
1. Inspect the inner tire for aging or excessive air pressure.
2. Inspect the tire for deformation, aging or other damage. If it is deformed, remove the tire and inspect the tire
roundness.
Radial tire Tire location exchange
The front tire is as same as the rear tire
Radial tire used on Ruiqi series of models.
• After the tire position exchange, adjust the tire pressure.
Tire pressure (front/rear) (unit: kPa)
Tire No-load Full load
P215/75R15 200/200 200/250

Spare tire
LT215/75R15, 6PR 250/250 250/350
• On aluminum wheel, after initial travel of 1000km (600miles)
or disassembly due to the tire air leak, tighten the wheel nuts
again.
Wheel nut:
: 118-147N•m (12-15kg-m, 87-108ft-lb)
CAUTION:
• When installing the tire, tighten diagonally the bolts to the
specified torque for 2-3 times.
• Be careful not to exceed the specified torque when
tightening the bolts, to prevent the bolt deformation. .
• Use ZNA genuine nuts.

EM-24
 Chassis and body maintenance

GI
Inspect the brake oil level and the leakage
Top line
If the brake fluid level is very low, inspect the brake system for
leaks. MA

Bottom line EM

LC

EC
Inspect the brake system
Inspect whether the brake fluid pipe and the parking brake cable
are connected properly, and whether there are leaks, wear, FE
abrasion, corrosion, aging and other phenomenon.

CL

MT

AT
Replace the brake fluid
Drain the brake fluid through the exhaust valves, and fill the
brake fluid, until the new brake fluid flows through the exhaust TF
valves, and then perform the exhaust method as same as one for
the hydraulic system, see BR.
• Refill the recommended brake fluid. PD
• Do not reuse the drained brake fluid.
• Do not to splash the brake fluid on painted surface. FA

RA
Inspect the brake booster, vacuum hose, fitting and check valve
Inspect whether the vacuum line, connector, and check valve
are connected properly, and whether there are leaks, wear or BR
corrosion.

ST

RS

BT
Inspect the disc brake
Brake disc
Inspect the brake disc condition and thickness. HA
Minimum thickness:
CL28VA 20mm (0.79in)
EL
CL28VD 24mm (0.94in)

PG

EM-25
 Chassis and body maintenance

Brake caliper
Inspect the leak.

Brake pad
Inspect the brake pad for wear or damage.
Minimum thickness:
2mm (0.08in)

Inner diameter Inspect the drum brake

Wheel cylinder
Inspect the leak.
Brake drum
Inspect the brake drum condition and its inner surface.
Brake drum repair limit (maximum inner diameter):
Inspect the inner brake
drum surface conditions LT26 261.5mm (10.30in)
LT30 296.5mm (11.67in)

Brake shoe
Inspect the brake shoe for damage and wear.
Pad wear limit (minimum thickness):
1.5mm (0.059in)

The temporary method to inspect the brake shoe wear:

Plug Remove the inspection hole plug and inspect the brake shoe
wear.

EM-26
 Chassis and body maintenance

GI
Inspect the steering gear and its linkage mechanism
Steering device
1. Inspect the steering device housing protective cover fro MA
loosening, damage or grease leakage.
2. Inspect whether the steering column is connected properly.
EM

Steering linkage
Inspect the ball pin, dust cover and other parts for loosening, LC
wear, damage, or grease leakage.
EC
Inspect the power steering fluid and the pipeline
Oil level inspection after shutting down the engine
FE
Heating area

Inspect the oil level with the dipstick in the oil tank. When the
Cooling area
Cooling area

oil temperature is 50-80℃ (122-176℉), the standard value in

“HOT” region should be prevail; when the oil temperature is CL
Heating area

0-30℃ (32-86℉), the standard value in “COLD” region should

be prevail.
MT
CAUTION:
• Do not fill excessive oil.
• The recommended oil is ZNA ATF DX (ZNA special power AT
steering fluid) or equivalent product.

TF
Inspect whether the pipe is connected properly, and whether
there are leaks, cracks, damage, loose joints, wear or
corrosion. PD

FA

RA

BR

Filler plug port

Inspect the steering oil level and its leaks
Inspect the steering oil level and its leaks. ST

Oil level: the distance to “A” position is 20mm (0.79in) or

less in the filled state. RS
CAUTION:
Do not fill excessive oil.
BT

(On-board)
HA

EL

PG

EM-27
 Chassis and body maintenance

Lubricate engine hood lock, door lock, stopper and hinges

Lubrication point

EM-28
 Chassis and body maintenance

Inspect the seat belt, the buckle, the shrink device, the holder and the regulator GI

ELR type Inspect the support anchor bolts for Front and rear single seats
loosening MA

Inspect the belts for

damage EM

LC

When snapping and releasing the

snap catch, inspect the functions of
the snap catch and the tongue piece. EC

When snapping and releasing the snap

catch, inspect the functions of the snap FE
catch and the tongue piece.

Inspect whether the support anchor CL

screws are loose
Inspection the retraction device for
smooth operation

MT

AT
Front integrated seat (including The inspection items on the rear seat are
separated seats) as same as ones on the front seat

TF

When snapping and releasing

the snap catch, inspect the
functions of the snap catch and PD
the tongue piece.
Inspect whether the
support anchor screws are
loose
FA

RA

Inspect the belts for damage BR

ST

CAUTION:
• If a crash or rollover occurs, regardless of the accident nature, replace all the seat belt assemblies. RS
• If any part of the seat belt is fault, can not repair it, but replace it as an assembly.
• If the tape is broken, cracked or damaged, replace the seat belt assembly. BT
• Do not spill drink or oil on the lapping surface of the seat belt buckle, do not apply the oil on the tongue
and the buckle.
• Use ZNA seat belt assembly. HA
Support anchor bolt:
: 43-55N•m (4.4-5.6kg-m, 32-41ft-lb) EL

PG

EM-29
 Service Data & Specifications (SDS)

Maintenance data and specifications (SDS)

Engine Maintenance (MA)
Repair and Parameters
Drive belt offset unit: mm (in)
Belt offset to be used unit: mm (in)
Limit Adjusted belt offset Newly installed belt offset
Alternator 12 (0.47) 8–10 (0.31-0.39) 7–8 (0.28-0.31)
Power steering pump 16 (0.63) 10–12 (0.39-0.47) 8–10 (0.31-0.39)
A/C compressor 13 (0.51) 8–10 (0.31-0.39) 6–6 (0.24-0.31)
Applied thrust force

Air valve clearance unit: mm (in)

Engine model Intake Intake Notes
QD80 0.35 (0.014) Hot
ZD22 0.2-0.3 (0.008-0.012) 0.35-0.45 (0.014-0.018)
ZD28 0.30-0.40 (0.012-0.016)
ZD30 0.30-0.40 (0.012-0.016) Cold
ZD25 0.20-0.30 (0.008-0.012) 0.35-0.45 (0.014-0.018)
4RB2/ZG24 0.15-0.25 (0.006-0.010) 0.25-0.35 (0.010-0.014)

Spark plug (standard type)

Engine model Spark plug type Spark plug clearance Spark plug mounting torque
1.0-1.2mm 20-29N•m
4RB2/ZG24 K7RTCU
(0.039-0.047in) (2-3kg-m, 14-22ft-lb)

High-pressure cylinder wiring

Engine model High pressure cylinder wiring resistance
4RB2/ZG24 9.6-22.4kΩ/m (2.93-6.83kΩ/ft)

Chassis and body maintenance

Repair and Parameters
Wheel balance
Dynamic balancing (at the rim ring) g (oz) 10 (0.35) - side
Maximum allowable imbalance
Static balancing g (oz) 20 (0.71)

Tire pressure (front/rear) (unit: kPa)

Tire No-load Full load
P215/75R15 200/200 0 200/250
LT215/75R15, 6PR 250/250 250/350

Tire nut
Tightening torque 118-147N•m (12-15kg-m, 87-108ft-lb)

EM-30
 RICH

Daroupakhsh St.17th Km Karaj Makhsoos Road-TEHRAN-IRAN