The CA 25/30 family of vibratory rollers MAINTENANCE

consists of the CA 251 Standard, Drum Drive

(D) and Pads+Drum Drive (PD) together with
CA 301 Std., D and PD. CA 251/301
These rollers are designed for the compaction
VIBRATION ROLLER
of roads, airfields, dams and similar M251EN2, December 1996
constructions.

The CA 251A compacts asphalt, concrete, Diesel engine:

base courses and subbase courses efficiently Deutz F6L 912
and at a high rate. Cummins 6BT 5.9

The instructions apply from

CA 251: PIN (S/N) *58310256*
CA 301: PIN (S/N) *59010306*
CA 251A: PIN (S/N) *58310414*
SE
U
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R
R AL
TU
FO NU
FU
A
LE M
A IS
IL TH
B
VA P
A EE
K

Printed in Sweden CA 251/301 M251EN2 Box 504 • SE-371 23 KARLSKRONA • Sweden1

We reserve the right to change specifications without notice Tel. +46 455 627 00 • Telex 43041 dynkar s
Telecopier +46 455 627 30
 CONTENTS
Page
Lubricants, symbols ......................................................... 3
Specifications ........................................................... 4, 5, 6
Maintenance schedule ..................................................... 7
Maintenance Procedures ............................................. 8, 9
Every 10 hours (Daily) ....................... 7, 10, 11, 12, 13, 14
Every 50 hours (Weekly) .......................... 7, 15, 16, 17, 18
Every 250 hours (Monthly) ............................. 8, 19, 20, 21
Every 500 hours (Three months) ......................... 8, 22, 23
Every 1000 hours (Six months) ............................ 8, 24, 25
Every 2000 hours (Yearly) ....................... 8, 26, 27, 28, 29
Long-term parking .......................................................... 30
Special instructions ........................................................ 31
Electrical system ............................................................ 32

WARNING SYMBOLS
WARNING

Warning - Personal safety may be involved.

CAUTION

Caution - Machine or component damage

GENERAL
WARNING

Read all the instructions thoroughly before

carrying out any servicing operations.
WARNING

Ensure that ventilation (evacuation) is

adequate if the engine is run indoors.

Proper care of the roller is essential to ensure satisfactory

operation. Keep the machine clean so that any leakage,
loose bolts or loose connections can be easily detected.

TAKE CARE OF THE ENVIRONMENT. Do not spill oil or CALIFORNIA

fuel, or leave anything else that could be detrimental to
the environment. Proposition 65 Warning

This manual includes instructions for periodic maintenance Diesel engine exhaust and some of its
which should normally be carried out by the operator. constituents are known to the State
CAUTION of California to cause cancer, birth
Instructions in the engine manufacturer’s manual
defects, and other reproductive
also apply. The manual is included in the product
folder supplied with the roller. harm.

2 CA 251/301 M251EN2
LUBRICANTS
SMÖRJMEDEL,AND
SYMBOLER
SYMBOLS

CAUTION
Always use high-quality lubricants in the
amounts recommended. Too much grease or
oil can cause overheating and subsequent
increased wear.

ENGINE OIL, ambient temp. Shell Rimula SAE 15W/40 or equivalent.

-10°C to +50°C (14°F to 122°F) API Service CD/SE, CD/SF

HYDRAULIC FLUID, ambient temp.

-10°C to +40°C (14°F to 104°F) Shell Tellus Oil TX68 or equivalent
above +40°C (+104°F) Shell Tellus Oil T100 or equivalent

TRANSMISSION OIL, ambient temp.

-15°C to +40°C (5°F to 104°F) Shell Spirax SAE 80W/90, HD API, GL-5
above +40°C (+104°F) Shell Spirax HD85W/140 or equivalent

DRUM OIL/CASSETTE OIL

All temperatures Synthetic oil, MOBIL SHC 629 or equivalent

GREASE Shell Calithia EPT2 or equivalent

FUEL See engine manual

50
/50 COOLANT Shell Anti Freeze 402 or equivalent.
50/50 mixture with water Freeze safe down to about -35°C (-31°F).

CAUTION Other lubricants are required for operation in

extremely high or extremely low ambient
temperature. See, chapter ”Special
instructions”, or get in touch with Dynapac.

Engine oil level Air cleaner

Engine oil filter Battery

Hydraulic reservoir level Tyre pressure

Hydraulic fluid filter Sprinkler

Transmission oil level Sprinkler water

Lubricating oil Coolant level

Fuel filter Recyclable

CA 251/301 M251EN2 3
 SPECIFICATIONS

Weight and sizes CA 251 CA 301

Std D PD A Std D PD

Weight CECE,
standard equipped roller, kg (lbs) 9550 9750 11150 10000 11350 12050 11900
(21,060) (21,500) (24,590) (22,050) (25,030) (26,570) (26,240)
Length, std. equipped roller, mm (in) 5380 5380 5450 5532 5380 5430 5450
(212) (212) (215) (218) (212) (214) (215)
Width, std. equipped roller, mm (in) 2373 2373 2373 2373 2373 2373 2373
(93) (93) (93) (93) (93) (93) (93)
Height, std. equipped roller, mm (in) 2175 2175 2230 2175 2180 2180 2230
(86) (86) (88) (86) (86) (86) (88)
Height, " with ROPS, mm (in) 2895 2895 2945 2895 2900 2900 2945
(114) (114) (116) (114) (114) (114) (116)
Height, " with cab, mm (in) 2800 2800 2850 2800 2800 2800 2850
(110) (110) (112) (110) (110) (110) (112)

Fluid volumes Litres (gal or qts)

Rear axle:
• Differential ................................... 12 (12.7 qts)
• Planetary gears ........................... 3,1 (3.3 qts)/each side
Pump drive/Transfer gearing ......... 1,5 (1.6 qts)
Drum drive/Torque hubs (D,PD) .... 2,8 (3.0 qts)
Drum, vibrator ................................ (A) 27 (7.1 gal)/each side, 2,7 (2.85 qts)/each side (cassette)
Hydraulic reservoir ........................ 90 (24 gal)
Hydraulic system ........................... (Std, A) 26 (6.9 gal), (D, PD) 25 (6.6 gal)
Diesel engine ................................. (Deutz) 14 (14.8 qts), (Cummins) 16 (16.9 qts)
Coolant (Cummins) ....................... 27 (7.1 gal)
Fuel tank ........................................ 265 (70 gal)
Water tank (A) ............................... 480 (127 gal)
Emulsion tank (A) .......................... 10 (10.6 qts)

Electrical system
Battery ............................. 12 V, 160/170 Ah
Alternator ......................... 12 V, 95/105 A
Fuses ............................... 8 A

4 CA 251/301 M251EN2
 Vibration data CA 251 CA 301
Std D PD A Std D PD

Static linear load .................... kg/cm 23,8 24,7 - 26,1 31,5 35,3 -
(pli) (133) (138) - (146) (176) (198) -
Amplitude (High) ................... mm 1,75 1,75 1,63 0,8 1,72 1,72 1,63
(in) (0.069) (0.069) (0.064) (0.031) (0.068) (0.068) (0.064)
Amplitude (Low) .................... mm 0,85 0,85 0,79 0,4 0,84 0,84 0,79
(in) (0.033) (0.033) (0.031) (0.016) (0.033) (0.033) (0.031)
Frequency (High ampl.) ......... Hz 30 30 30 45 30 30 30
(vpm) (1,800) (1,800) (1,800) (2,700) (1,800) (1,800) (1,800)
Frequency (Low ampl.) .......... Hz 33 33 33 45 33 33 33
(vpm) (1,980) (1,980) (1,980) (2,700) (1,980) (1,980) (1,980)
Centrifugal force (High ampl.) kN 203 203 249 187 249 249 249
(lb) (45,675) (45,675)(56,025)(42,075) (56,025) (56,025) (56,025)
Centrifugal force (Low ampl.) . kN 119 119 146 94 146 146 146
(lb) (26,775) (26,775)(32,850)(21,150) (32,850) (32,850) (32,850)

Propulsion data CA 251/301/251A CA 251D/301D CA 251D/301PD

Speed range km/h (mph) 0-23 (0-14.3) 0-10 (0-6.2) 0-10 (0-6.2)
Climbing capacity (theoretical) % 40 62* 62*
(*Deutz: 57% with std. oil sump)

Tires CA 251/301 CA 251A

Tire size 23.1x26 8 ply 16.9x30 6 ply
Tire pressure 110-150 kPa (1,1-1,5 kp/cm2) (16-22 psi) 110 kPa (1,1 kp/cm2) (16 psi)
WARNING
As an option, the tires can be filled with liquid.
In connection with service, remember the extra weight that this implies.

Tightening torque Tightening torque in Nm (ftlbs) for oiled bolts tightened

with a torque wrench.

M STRENGTH CLASS

thread 8.8 10.9 12.9

M6 10 (7) 14 (10) 17 (12)

M8 24 (18) 33 (24) 40 (29)
M10 47 (35) 65 (48) 79 (58)
M12 81 (60) 114 (84) 136 (100)
M14 128 (94) 181 (133) 217 (160)
M16 197 (145) 277 (204) 333 (245)
M18 275 (202) 386 (284) 463 (340)
M20 385 (283) 541 (398) 649 (477)
M22 518 (381) 728 (535) 874 (643)
M24 665 (489) 935 (688) 1120 (824)
M27 961 (707) 1350 (993) 1620 (1191)
M30 1310 (963) 1840 (1353) 2210 (1625)

ROPS Bolt size: M24

Strength class: 8.8
Tightening torque: 640 Nm (472 ftlbs)

CA 251/301 M251EN2 5
 SPECIFICATIONS

Hydraulic system
Relief pressure MPa P.S.I

Traction system 35 5,100

Charge relief 2 290
Vibration system 35 5,100
Steering system 14 2,050
Brake release 1.5 220

Noise level — Operator’s

Measured sound pressure level, LpA, on hard
position (ISO 6394) supporting surface and with vibration switched off:

Deutz: LpA: 86 dB(A)

Deutz and cab: LpA: 89 dB(A)
Cummins: LpA: 92 dB(A)
Cummins and cab: LpA: 84 dB(A)

Sound effect level

Measured sound effect level, LwA, on hard
— Surroundings (SS 4591010)
supporting surface and with vibration switched off:

Deutz: LwA: 108 dB(A)

Deutz and cab: LwA: 108 dB(A)
Cummins: LwA: 112 dB(A)

Whole body vibration Measured with vibration switched on and on a foam

— Operator’s position (ISO 2631) 2
rubber mat (Limit value 0,5 m/s ):

Vibration level Operator’s Floor of operator's

for machine seat (m/s2)* platform (m/s2)**

CA 251Std./D 0,39 0,31

+ ROPS 0,29 0,33
+ cab 0,21 0,17
+ ROPS and cab 0,16 0,21

CA 301Std./D 0,30 0,10

+ ROPS 0,23 0,38
+ cab 0,32 0,24
+ ROPS and cab 0,35 0,32

CA 251A 0,05 0,09

+ ROPS 0,04 0,04

* Aggregate acceleration on operator’s seat

** Maximum acceleration in z-axis of floor.

6 CA 251/301 M251EN2
 MAINTENANCE SCHEDULE

Read through the manual before carrying out any

maintenance operations. Proper care of the roller is essential
to ensure satisfactory operation.

Keep the machine clean so that any leakage, loose bolts or

loose connections can be easily detected. Make a habit of
checking around the roller and also on the ground. This is
usually the easiest way to detect any leakage at an early
stage.

1 2 3 4,5 6 7 8 40 9 10 11 12 13,14

37

15
36
16
17

35

18

39 34 33 32 31 30 38 29 28 27 26 25 24 23 22,21 20 19

Fig. 1 Service points

1. Torque hubs (D and PD only) 15. Feed pump, diesel fuel 29. Flyweel cover, hydraulic pumps
2. Drum oil, filling 16. V-belt 30. Steering cylinder
3. Fuse box 17. Diesel fuel, filling 31. Steering articulation
4. Battery 18. Engine suspension 32. Rubber element, fastening bolts
5. Hydraulic fluid, filling 19. Fuel tank, drain 33. Level plug, drum oil
6. Venting filter, hydraulic reservoir 20. Oil level, engine 34. Scraper
7. Sight glass, hydraulic reservoir 21. Rear axle suspension 35. Sprinkler system (CA 251A)
8. Hydraulic fluid filter (3 off) 22. Rear axle, lubricating oil levels 36. Water tank (CA 251A)
9. Air cleaner 23. Wheel nuts 37. Drum cassette, oil
10. Lubricating oil filter, engine 24. Tire pressure 38. Emulsion tank (CA 251A)
11. Engine hood, hinge 25. Scrapers (CA 251A) 39. Levelling blade (optional
12. Fuel filter/Water separator, engine 26. Drain, hydraulic reservoir equipment)
13. Coolant, Cummins 27. Tyre sprinkler (CA 251A) 40. Wind shield wash, cab (optional
14. Hydraulic fluid cooler, Cummins 28. Hydraulic fluid cooler, Deutz equipment)

CA 251/301 M251EN2 7
 MAINTENANCE MEASURES

The periodic measures shall be performed in the first

case at the number of operating hours stated, in the
second case for the period stated, ie, daily, weekly, etc.
CAUTION
Always clean away dirt before filling or
checking any oil, hydraulic fluid or fuel, and
before lubricating with grease or oil.
CAUTION
Instructions in the engine manufacturer’s
manual also apply.

Every 10 hours of operation (Daily)

Item in Procedure See Comments
fig. 1 page

Before starting each day

20 Check level of engine oil See engine manual
13 Check coolant level, Cummins 10
Check the brakes 10
25,34 Check scraper setting 11, 12
40 Check/top up wind shield liquid 12
27,35 Check sprinkler system (CA 251A) 14

On completion of day´s work

7 Check level of hydraulic reservoir 12
17 Refuel 13
38 Fill the emulsion tank (CA 251A) 13
36 Fill water tank (CA 251A) 14

Every 50 hours of operation (Weekly)

Item in Procedure See Comments
fig. 1 page

10 Change engine oil and oil filter See engine manual

9 Clean air cleaner insert or change main filter 15
Ensure that hoses and connections are tight
24 Check tire pressure 15
4 Check the battery 16
31 Lubricate steering joint 17
30 Lubricate the steering cylinder brackets 17
39 Lubricate the levelling blade mechanism 18
1 Change oil in torque hubs (D and PD only) 27
CAUTION
After the first 50 hours of operation, change all oil
and hydraulic fluid filters and lubricating oil, but
not the hydraulic fluid.

8 CA 251/301 M251EN2
 MAINTENANCE MEASURES

Every 250 hours of operation (Monthly)

Item in Procedure See Comments
fig. 1 page

20 Change engine oil, Cummins See engine manual

10 Change engine oil filter, Cummins See engine manual
20 Clean engine cooling fins, DEUTZ See engine manual
20,16 Check V-belt monitoring, DEUTZ See engine manual
Check belt tension on fan and alternator See engine manual
22 Check oil level in rear axle/planetary gear 19
33,37 Check oil level in drum/cassettes 19, 20
1 Check oil level in torque hubs (D and PD only) 20
18,21 Check bolted joints 21
29 Check oil level in transfer gearbox 21
31 Check rubber elements 21

Every 500 hours of operation (Every three months)

Item in Procedure See Comments
fig. 1 page

8 Change the hydraulic fluid filters 22

11 Lubricate controls and pivots 23
14,28 Clean outside of hydraulic fluid cooler 23
20 Change engine oil, DEUTZ See engine manual
10 Change engine oil filter, DEUTZ See engine manual
Check engine valve clearance See engine manual

Every 1000 hours of operation (Every six months)

Item in Procedure See Comments
fig. 1 page

26 Drain condense water from hydraulic reservoir 24

19 Drain condense water from fuel tank 24
6 Change venting filter on hydraulic reservoir 24
9 Change main filter of air cleaner 25
15 Clean strainer of feed pump, DEUTZ See engine manual

Every 2000 hours of operation (Yearly)

Item in Procedure See Comments
fig. 1 page

26 Change fluid in hydraulic reservoir 26

29 Change oil in transfer gearbox 26
2,37 Change oil in drum/cassettes 26, 27
1 Change oil in the torque hubs (D and PD only) 27
22 Change oil in rear axle planetary gears 28
22 Change oil in rear axle differential 28
36 Clean the water tank (CA 251A) 29
38 Clean the emulsion tank (CA 251A) 29

CA 251/301 M251EN2 9
 EVERY 10 HOURS OF OPERATION (Daily)

Coolant level, checking

- filling
CUMMINS:
1
WARNING
At operating temperature the coolant is
under pressure. If the cap is opened too
quickly, steam will escape with the risk of
severe scalding. Wear protective gloves
and goggles.
CAUTION

Use steps or other suitable aid when checking

the radiator.

See the engine manual. See specification for filling with

Fig. 2 Radiator coolant.
1. Filler cap
CAUTION
Change the coolant and flush out the system
every other year. Check also that air can flow
freely through the radiator.
Air circulation - Checking
Ensure that circulation to the engine through the grille
is not obstructed.

Fig. 3 Cooling grille

Brakes - Test WARNING

Check operation of the brakes as follows:

11 24

1. Drive the roller slowly forward.

2. Press the emergency stop knob (11). The brake

warning lamp (10) should light and the roller should
stop.

3. On completion of the test, put the forward/reverse

control (24) in neutral before resetting the
10
emergency stop.
Fig. 4 Instrument panel
10. Brake warning lamp 4. Pull the emergency knob out.
11. Emergency stop
24. Forward/reverse lever

10 CA 251/301 M251EN2
 EVERY 10 HOURS OF OPERATION (Daily)

Scrapers (CA 251)

- checking, adjustment
Adjust distance to the drum as follows:
1
1. Loosen the four fastening bolts.

2. Adjust the scraper blade about 10 mm (0.4") from

the drum.

3. Tighten the fastening bolts.

Fig. 5 Scraper
1. Fastening bolts
2. Scraper blade

Scrapers (CA 251A)

- checking, adjustment
Drum:

Ensure that the scrapers are intact and adjust the

distance as follows:

1. Loosen all the fastening bolts.

2. Adjust the scraper to the drum.

3. Tighten the fastening bolts.

1 2
Fig. 6 Scraper
1. Fastening bolts
2. Scraper blade

Tire:

1. The scraper blade (4) shall make contact with the

2
tire with a 20 mm (0.8") pre-tensioning of the spring
(3). The pre-tensioning is adjusted with the scraper
3
1 stretcher (2).

2. For transport runs, retract the scraper from the tire

and secure with the cotter pin (1).

Fig. 7 Tyre scraper

1. Cotter pin
2. Scraper stretcher
3. Spring
4. Scraper

CA 251/301 M251EN2 11
 EVERY 10 HOURS OF OPERATION (Daily)

Scrapers (CA 301)

- checking, adjustment
1. Loosen the four fastening bolts on half of the scraper
1 blade.
2
2. Set the scraper blade about 20 mm (0.8") from the
drum. Tighten the bolts.

3. Adjust the other three scraper blade sections to the

same gap.

Fig. 8 Front scraper

1. Scraper blade
2. Fastening bolts

Hydraulic reservoir -
Checking the level
1. Position the roller on a level surface and check the
sight glass reading (1).

2. Top off with hydraulic fluid, see Lubricant Specifica-

tion on page 3, if the level is 20 mm (0.8") or more
below the upper edge of the glass, or if oil is not
1 visible in the sight glass.

Fig. 9 Hydraulic reservoir

1. Sight glass

Wind shield liquid

- Check/Top up (Cab)
Open the right cover of the engine compartment and
top up the wind shield liquid bottle (1).
CAUTION
Remember the danger of freezing in the
winter. Empty the tank, pump and piping.

Fig. 10 Engine compartment

1. Wind shield liquid bottle

12 CA 251/301 M251EN2
 EVERY 10 HOURS OF OPERATION (Daily)

Hydraulic reservoir, filling

1. Take off the cover on the right side underneath the
operator’s seat.
3
2. Take out the suction hose (1).

3. Clean the hose and screw off the protective plug (2).

4. Insert the hose in a drum of fresh hydraulic fluid.

1
5. Fit the pump lever (3), and pump with the lever and
fill the reservoir to the level on the sight glass. The
2 fluid is pumped via a filter to the reservoir so always
follow this procedure when filling.
Fig. 11 Battery box
1. Suction hose
2. Protective plug
3. Pump lever

Fuel tank, refuelling

Refuel with diesel fuel up to the lower edge of the filler
pipe daily at the end of operations.

WARNING Stop the engine. Ground the refuelling

nozzle by touching it against a non-
insulated part of the roller before refuelling,
and keep the nozzle against the inside of
1 the filler pipe (1) while filling the tank.

(See the engine manufacturer’s instructions with regard

to quality of diesel fuel.)
Fig. 12 Fuel tank
1. Filler pipe

Emulsion Tank (CA 251A)

- Filling
Check the level and fill the emulsion tank as required.
1 The emulsion is used only to lubricate the tires. The
pump and filter are located behind the cover adjacent
to the bottom of the tank.
CAUTION
Remember the danger of freezing in the
winter. Empty the tank, pump and leads.

Fig. 13 Left side of frame

1. Emulsion tank
2. Space for pump and filter

CA 251/301 M251EN2 13
 EVERY 10 HOURS OF OPERATION (Daily)

Sprinkler system (CA 251A)

Checking - Cleaning CAUTION

1 Fill with clean water through the tank filter.

Make sure that the strainer nozzles (1) are not

clogged. If necessary, clean the nozzles and strainer.

Fig. 14 Water tank

1. Nozzle
2. Pump system

Nozzle (CA 251A)

Dismantling - Cleaning
Dismantle a clogged nozzle. Blow the nozzle and
1 2 strainer clean with compressed air, or fit replacements,
3 4 and clean the clogged items at a later opportunity.
WARNING

Wear protective goggles when working

with compressed air.

Fig. 15 Nozzle
1. Sleeve
2. Nozzle
3. Seal
4. Strainer

Pump System (CA 251A)

Checking - Cleaning
1. Remove the screws and take off the cover from the
forward frame beam.

2. The sprinkler system includes two water pumps and

filter. When cleaning, close the stop cock (3) and
loosen the filter housing (2). Clean the insert and
the filter housing with water.

3. Listen, or place your hand on the water pump to

ensure that it is working.
1 2 3

Fig. 16 Pump system

1. Water pump
2. Water filter
3. Stop cock

14 CA 251/301 M251EN2
 EVERY 50 HOURS OF OPERATION (Weekly)
Air Cleaner CAUTION Change or clean the Primary filter of the air
- cleaning the Primary filter cleaner when the warning lamp on the instru-
ment panel lights at full revs of the diesel
1 2
engine.

1. Loosen the clamp (4) and remove the dust trap (3).

2. Screw off the wing-nut at the center of the filter and

take off the inner cover (5). Clean inside the dust
trap with a clean rag.

3. Screw off the wing-nut and pull out the Primary filter
(6).
6 5 4 3
7
4. Wipe the inside of the filter housing (1) and intake
Fig. 17 Air cleaner pipes with a clean rag.
1. Filter housing
2. Secondary filter
3. Dust trap
5. Check that hoses and connections between the filter
4. Clamp housing and engine are intact and tight.
5. Inner cover
6. Primary filter 6. Clean the emptying slits (7) of the dust trap.
7. Emptying slit
CAUTION
Replace the Secondary filter (2) with a new one
Cleaning with every third time the Primary filter is changed or
compressed air cleaned. The Secondary filter cannot be
cleaned and reused.

Use compressed air at a maximum pressure of 0.7

MPa (7 kp/cm2) (100 psi)

Blow up and down along the paper pleats on the inside

of the filter element. Hold the nozzle at least 10 mm
(0.4") from the pleats to avoid tearing the paper.
CAUTION
Change the Primary filter after cleaning it five
times.
Fig. 18 Primary filter WARNING
Wear protective goggles when working
with compressed air.
Tire pressure
Wheel nuts - tightening
Check the tires with a pressure gauge.
Minimum tyre pressure = 110 kPa (1,1 kp/cm2) (16 psi).
Maximum tyre pressure = 150 kPa (1,5 kp/cm2) (22 psi).
Tyre pressure CA 251A: 110 kPa (1,1 kp/cm2) (16 psi).
Check both tyres.
CAUTION
When changing tires it is essential that both
tires have the same rolling radius
(max. difference about 15 mm or 0.6").
No-spin equipment may otherwise be
damaged.
1

Fig. 19 Wheel
1. Air valve

CA 251/301 M251EN2 15
 EVERY 50 HOURS OF OPERATION (Weekly)

Battery - Checking the

electrolyte level
WARNING
Never use a naked flame when checking
the battery. The electrolyte emits explosive
gas while the alternator is charging.

1. Turn the knob (1).

1 2. Pull out the battery shelf.

3. Wipe the top of the battery.

WARNING
Wear protective goggles. The battery
Fig. 20 Battery shelf contains corrosive acid. Flush with water
1. Knob in the event of contact with the skin.

3. Take off the cell caps and check that electrolyte

level is about 10 mm (0.4") above the plates. Check
the level of all cells, and top up with distilled water
as required to the correct level. If ambient tempera-
ture is below zero, the engine should be run for a
while after topping up with distilled water, ie, there is
otherwise a risk that the battery fluid will freeze.
1 4. Make sure the venting holes in the cell caps are not
clogged. Refit the caps.

5. Battery terminals must be clean and well tightened.

Clean the terminals if corroded and grease them
with acid-free Vaseline.
WARNING
Always ensure that the battery box is
Fig. 21 Battery shelf
1. Knob
closed and latched when driving.

CAUTION When removing the battery, always

disconnect the negative cable first.
When fitting the battery, always connect the
positive cable first.
Battery cell
Take care of the battery after changing. The
battery contains lead which contaminates
the environment unless it is treated properly.
1

2
WARNING
Before doing any electric welding on the
machine, disconnect the ground cable of
the battery and then disconnect all electric
connections to the alternator.

Fig. 22 Electrolyte level in battery

1. Cell cap
2. Electrolyte level
3. Plate

16 CA 251/301 M251EN2
 EVERY 50 HOURS OF OPERATION (Weekly)

Articulated steering - Steering

cylinders Lubrication
WARNING
Risk of injury. Keep everyone clear of the
1
articulated steering mechanism while the
engine is running.

Turn the steering wheel fully to the left to gain access

2 to all six lubricating nipples on the right-hand side of
2 1 the machine.
CAUTION
1 Use grease recommended in Lubricant
Specification.
1

Fig. 23 Steering joint, right side

1. Lubricating nipples, steering joint
2. Lubricating nipples, steering
cylinders

Articulated steering -
Lubrication
1. Wipe all the nipples clean from dirt and grease.
1
2. Lubricate each nipple (1) with five strokes of the
grease gun. Make sure that grease penetrates the
bearings.

3. If grease does not penetrate the bearings it may be

1 necessary to relieve the articulated joint with a jack
and repeat the greasing procedure.

Fig. 24 Steering joint, right side

1. Lubricating nipples

Steering cylinders
- Lubrication
1. Wipe nipples clean from dirt and grease.

2. Lubricate each nipple (2) with two strokes of the

grease gun.

2 2 3. Turn the steering wheel fully to the right and grease

the nipples on the left steering cylinder that are now
accessible. Leave a little grease on the nipples after
greasing. This will prevent dirt from entering the
nipples.

Fig. 25 Steering cylinders, right side

2. Lubricating nipples, cylinder
brackets

CA 251/301 M251EN2 17
 EVERY 50 HOURS OF OPERATION (Weekly)

Levelling blade
- Lubrication WARNING
Always lower the blade when the roller is
parked or is out of service.

1. Lower the blade.

2. Wipe the lubricating nipples clean on both sides of

the machine.

3. Lubricate each nipple (1) with four strokes of the

grease gun. Ensure that grease penetrates the
bearings. Use grease in accordance with the
lubricant specification on page 3.
1

Fig. 26 Levelling blade

1. Lubricating nipples

18 CA 251/301 M251EN2
 EVERY 250 HOURS OF OPERATION (Monthly)

Rear axle differential

- Checking the oil level
WARNING
Never work under the machine while the
engine is running. Always park the
machine on level ground and chock the
wheels.

1. Make sure the roller is level.

1 2
1
2. Unscrew the level plugs (1) and check that oil level
is up to the lower edge of the plug hole. Top up with
oil through the filler plug (2) as required to the
correct level. Use transmission oil. See Lubricant
Specification.

Fig. 27 Level check - differential housing

1. Level plugs
2. Filler plug

Rear axle planetary gear

- Checking the oil level
2
1. Position the roller on a level surface with one plug of
the planetary gear straight up, the other one will
then be horizontal.
1
2. Unscrew the plugs and check that oil level is up to
the lower edge of the plug hole. Top up with oil
through the filler plug (2) as required to the correct
level. Use transmission oil. See Lubricant
Specification.

3. Check oil level of the other planetary gear of the

Fig. 28 Level check - planetary gear rear axle in the same way.
1. Level plug
2. Filler plug

Drum (CA 251A)

- Checking the oil level
2 Applies to both sides of the drum, ie, two checks.

1. Position the roller on a level surface, with the level

pin aligned with the top of the frame beam.

2. Unscrew the level plug (3) (small hexagon) a few

turns. Oil should then run from the plug hole if the
level is correct.

3. Top up with transmission oil as required, see

Lubricant specification. Fill via the filler plug (2)
(large hexagon).
3 1
Fig. 29 Right side of drum
1. Level pin
2. Filler plug
3. Level plug

CA 251/301 M251EN2 19
 EVERY 250 HOURS OF OPERATION (Monthly)

Drum (cassette)
- Checking the Oil Level
1. Position the roller on a flat surface with the filler plug
(1) (Large plug width across flats 24 mm) at the top
1 and screw off the plug.

2. Screw out the level plug (2) (Small plug width

across flats 13 mm) and oil should flow from the
plug hole. Oil level is correct when the flow stops.
If oil does not run out, top off through the plug hole
(1).
CAUTION
A small amount of oil may run out as the plug
2
(2) is screwed out, this is oil from the level
tube and does not necessarily indicate that
Fig. 30 Right side of drum the level is correct.
1. Filling/drain plug
2. Level plug
3. Fill as required with synthetic oil MOBIL SHC 629 or
equivalent.

4. Wipe any metal particles from the magnetic filler

plug (1) before refitting.

5. Repeat the above items 1 to 4 on the other side of

the drum.
CAUTION

Do not overfill with oil, risk for overheating.

Torque Hub (P, PD)

- Checking the Oil Level
Applies to versions P and PD only.
1
1. Position the roller on a level surface with the filler
plug at the top.
2
2. Wipe clean around the plugs.

3. Remove the plugs and check that oil reaches up to

the level plug.

4. Top off as required with transmission oil. See Lubri-

cant Specification.

Fig. 31 Torque hub

1. Filler plug
2. Level/Drain plug

20 CA 251/301 M251EN2
 EVERY 250 HOURS OF OPERATION (Monthly)

Transfer Gearbox -
Checking the Oil Level
1
1. Make sure the roller is level.

2. Wipe clean around the level plug (2) and loosen it a

few turns. Oil should run out from the plug if oil
level is correct.

3. If required, top off via the filler plug (1) until oil runs
2 from the level plug (2). Wipe clean around the filler
plug before unscrewing it. Use transmission oil. See
Lubricant Specification.
CAUTION
3
A level plug is fitted on both sides of the
transfer gearbox. The level need only be
checked on one side.
Fig. 32 Level Control
1. Filler plug
2. Level plug
3. Drain plug

Check tightening torque of

bolted joints
1. Rear axle suspension (25) 434 Nm (320 ftlbs).

2. Steering pump against propulsion pump (20) 38 Nm

(28 ftlbs).

3. Engine suspension (28). Check that all bolts are

tightened, 90 Nm (66 ftlbs).

4. Wheel nuts (23). Check that all the nuts are tight,
550 Nm (406 ftlbs) tightening torque.
28
25 23 20
(The above applies only to new or replaced
Fig. 33 Drive unit components.)

Rubber elements and fastening

bolts - Checking
Check all the rubber elements (1), replace all the
Max 76mm (3") elements if more than 25% of them on one side of the
1
drum are cracked deeper than 10 to 15 mm (0.4-0.6").

Use a knife, or similar tool, to check depth of cracks.

Check that the fastening bolts (2) are tightened.

2
CAUTION Using a vernier gauge, measure the length of
the rubber element, including the mounting
plates. See separate workshop instructions if
the size is greater than 76 mm (3").
Fig. 34 Drum, vibration side
1. Rubber element
2. Fastening bolts

CA 251/301 M251EN2 21
 EVERY 500 HOURS OF OPERATION (Every three months)

Hydraulic fluid filter

- changing
1. Loosen the venting filter to release any over-pressu-
4 re in the reservoir.
1
2. Remove the hydraulic filters (1), (2) and (3) and
discard them. They are of the disposable type and
2 cannot be cleaned and reused.
CAUTION
Ensure that the previous sealing rings are
removed. Leakage will otherwise occur be-
3
tween the old and new sealing rings.

3. Thoroughly clean the sealing surfaces of the filter

holders.
Fig. 35 Hydraulic reservoir
1. Suction filter, drive
2. Suction filter, vibr. 4. Apply a thin coat of fresh hydraulic fluid to the
3. Return filter, cooling system sealing rings of the new filters.
4. Level glass
5. Screw on the filters firmly by hand.
CAUTION
Screw on until the seal makes contact with the
seating and then screw half a turn further. Do
not tighten too hard, the seal may otherwise
be damaged.

6. Start the engine and check for any leakage from the
filters.
WARNING
Ensure that ventilation (evacuation) is
adequate if the engine is run indoors.
(Risk of carbon monoxide poisoning).

7. Check fluid level in the sight glass (4) and top off as
required.

22 CA 251/301 M251EN2
 EVERY 500 HOURS OF OPERATION (Every three months)

Controls and moving

joints - Lubrication
Grease the hinges (1) on the engine cover, the F/R
1 controls and the slide rails of the operator’s seat.
Lubricate other joints and controls with oil. Grease the
hinges of the cab doors. See lubricant specification.

Fig. 36 Engine cover

2. Hinge

Hydraulic fluid cooler

Checking - Cleaning
CUMMINS:

Ensure that air can flow freely through the cooler

1 without obstruction. A dirty cooler should be cleaned
with water or compressed air.
WARNING
Wear protective goggles when working
with compressed air or with high pressure
washing.

If possible, flush or blow the cooler clean in the

opposite direction to the normal flow of air. Cover any
electrical components.
Fig. 37 Engine compartment Ensure after cleaning that seals and noise absorbers
1. Hydraulic fluid cooler are undamaged.

Hydraulic fluid cooler

Checking - Cleaning
DEUTZ:

When cleaning, remove the radiator grille to expose

the hydraulic fluid cooler.

Fig. 38 Engine compartment

CA 251/301 M251EN2 23
 EVERY 1000 HOURS OF OPERATION (Every six months)

Hydraulic reservoir - Draining

1 Drain condensed water from the hydraulic reservoir via
the drain plug (1). Drain after the roller has stood still
for a long period, eg, overnight.

Drain as follows:

1. Hold a can underneath the cock.

2. Remove the plug (2).

3. Open the cock and allow any water to run out.

2

Fig. 39 Hydraulic reservoir, underneath 4. Close the drain cock.

1. Drain cock
2. Plug 5. Refit the plug.

Hydraulic reservoir
- Venting filter
Screw off the venting filter (1), discard it and fit a new
1 one.

Fig. 40 Hydraulic reservoir

1. Venting filter

Fuel tank - draining

Drain off sediment and water through the drain plug
located underneath the fuel tank.
CAUTION
Be very careful when draining not to drop the
plug or allow fuel to run out.

Draining should be done after the roller has stood still

for a long period, eg, overnight.

The roller should preferably have been standing on a

1 slope with the drain plug down low, which will allow
sediment and water to collect near the plug.
Fig. 41 Fuel tank
1. Drain plug Drain as follows:

1. Hold a can underneath the plug (1).

2. Loosen the plug and allow all sediment and water to

run out until pure diesel fuel starts to pour. Tighten
the plug.

24 CA 251/301 M251EN2
 EVERY 1000 HOURS OF OPERATION (Every six months)

Air cleaner
- changing the main filter
Change the Primary filter (6) of the air cleaner even if it
1 2 has not been cleaned the permitted 5 times, see every
50 hours of operation, Air cleaner.

6 5 4 3
7

Fig. 42 Air cleaner

1. Filter housing
2. Secondary filter
3. Dust trap
4. Clamp
5. Inner cover
6. Primary filter
7. Emptying slit

CA 251/301 M251EN2 25
 EVERY 2000 HOURS OF OPERATION (Every six months)

Hydraulic reservoir
- Changing the fluid
1. Use a suitable receptacle, for at least 100 litres
(25 gal), when draining the fluid.

An empty oil drum placed at the side of the roller is

suitable. Connect a hose to the drain cock (1) and
empty the contents of the reservoir into the oil drum.
1
2. Fill the reservoir with fresh hydraulic fluid, in
accordance with the instructions, Hydraulic reservoir
- Checking the level. Change the hydraulic filters at
the same time. See, Hydraulic fluid filters -
changing.
Fig. 43 Hydraulic reservoir, underneath
1. Stop cock 3. Start the engine and run the various hydraulic
functions.
Transfer Gearbox - WARNING
Ensure that ventilation (evacuation) is
Changing the Oil adequate if the engine is run indoors.
(Risk of carbon monoxide poisoning).
1
4. Check the fluid level and top off if necessary.

WARNING
Never work under the roller while the
engine is running. Park on a level surface.
Chock the drum and wheels.
2
1. Loosen the drain plug (3) and drain off the oil.

2. Refit the plug.

3
3. Remove the level plug (2) and fill with fresh gearbox
oil through the filler hole (1). Fill slowly to allow the
Fig. 44 Transfer gearbox, left side oil to level out.
1. Filler plug
2. Level plug 4. Fit the plugs (1 and 2) back again at the right
3. Drain plug oil level.
Drum - Changing the Oil
1. Position the roller on a level surface with the drain
2
plug (1) (Large plug width across flats 24 mm) at the
bottom. Place a receptacle for about 4 litres
(4.3 qts) underneath the plug.

2. Screw out the level plug (2) (Small plug width

across flats 13 mm) screw out the drain plug (1).

3. Allow all the oil to run out and repeat the procedure
on the other side of the drum.
1
4. Fill with synthetic oil in accordance with instructions
Fig. 45 Drum, right side under every 250 hours of operation. See under
1. Drain/Filler plug heading, Drum - Checking the Oil Level.
2. Level plug

26 CA 251/301 M251EN2
 EVERY 2000 HOURS OF OPERATION (Every six months)

Drum (CA 251A)

- Changing the Oil
2 Applies to both sides of the drum, ie, two checks.

1. Position the roller on a level surface, with the drain

plug (1) (large hexagon) at the lowest position.

2. Loosen the plug (1) and drain off the oil. Remember
that the amount of oil is about 27 litres (28 qts).

3. Drain off oil from the other side of the drum.

4. Before filling the drum with oil, see under every 250
1 hours of operation, heading Drum, Checking the Oil
Fig. 46 Setting of drum for draining Level.
1. Drain plug
2. Level plug

Torque hub (D, PD)

- Changing the oil
CAUTION Before changing oil it is essential that the
machine is run long enough to make the oil
warm and easy flowing. Any impurities present
will then come out with the oil. Observe clean-
liness and make sure the roller is level.

Applies to D and PD only.

The system should be run warm before changing

the oil.
1
1. Position the roller on a level surface with the drain/
2 level plug at the bottom.
Fig. 47 Draining the oil
1. Filler plug 2. Wipe clean around the plugs.
2. Drain/level plug
3. Place a can under the drain plug and drain off the
oil. The can should hold about 5 litres (6 qts).
1
Remove the filler plug also.

4. Reverse the roller until filler plug is at the top.

2
5. Fill with oil through up to the level plug. Use trans-
mission oil, according to lubricant specification.

6. The plugs are magnetic. Any metal particles must

be removed before the plugs are reinserted.

Fig. 48 Filling the oil

1. Filler plug
2. Drain/level plug

CA 251/301 M251EN2 27
 EVERY 2000 HOURS OF OPERATION (Yearly)

Rear axle differential

- Changing the oil
WARNING Never work under the machine while the
engine is running. Always park the
machine on level ground and chock the
wheels.

1. Position the roller level.

1 2
1 2. Remove all three drain plugs (3) and empty the oil
into a can, big enough for about 15 litres (4 gal).
Also remove the filler plug (2) and the level plugs
(1).

3. Refit the drain plugs and fill with fresh oil up to the
correct level. Refit the filler plug and level plugs.
3
Use transmission oil, see Lubricant Specification.
Fig. 49 Rear axle
1. Level plugs
2. Filler plug
3. Drain plugs

Rear axle planetary gear

- Changing the oil
1. Position the roller on a level surface with one of the
plugs straight down.

1 2. Unscrew this plug and drain off the oil into a can, big
enough for about 4 litres (4 qts).
2 Loosen the other plug to speed up the flow of oil.

3. Run the roller to position one of the plugs at the top

and the other horizontally.

4. Fill with oil through the upper hole (2) until it runs
Fig. 50 Planetary gear/position for
draining
out at the lower hole.
1. Level plug
2. Drain plug 5. Refit the plugs and repeat the procedure in the
same way on the other side. Use transmission oil,
see Lubricant Specification.

Fig. 51 Planetary gear/position for filling

1. Level plug
2. Filler plug

28 CA 251/301 M251EN2
 EVERY 2000 HOURS OF OPERATION (Yearly)

Water tank (CA 251A)

- Draining, Cleaning CAUTION
Beware of the risk of freezing in the winter.
Drain the tank, pump and piping.

1. Remove the drain plug (1) and drain off the water.

2. Clean the inside of the tank with water and a

suitable detergent for plastic material.

3. Refit the plug and check tightness.

The water tank is made of plastic (polythene)

1 and is recyclable.
Fig. 52 Water tank
1. Drain plug

Water pump (CA 251A)

- Draining
Drain the water pump (1) via the stop cock (2).

1 2 3

Fig. 53 Pump system

1. Water pump
2. Stop cock

Emulsion tank (CA 251A)

- Draining, Cleaning
The emulsion tank is drained most easily by screwing
off the water filter (1).

The emulsion tank is made of plastic

(polythene) and is recyclable.

Fig. 54 Pump system

1. Water filter

CA 251/301 M251EN2 29
 LONG-TERM PARKING

CAUTION
The following instructions must be complied
with when parking or storing the roller longer
than one month.

The measures stipulated apply for a standstill up to 6

months.

The measures marked j must be taken before using

the roller again.

Fig. 55 Weather protection

Diesel engine j See the manufacturer´s instructions in the engine

manual that accompanies the roller.

Battery j Remove the battery from the roller, clean it, check
that electrolyte level is correct and charge the
battery once every month.

Air cleaner, exhaust pipe j Cover the air cleaner or its intake opening with
plastic foil or tape. The opening of the exhaust pipe
must also be covered. This is necessary to prevent
moisture from getting into the engine.

Fuel tank Fill the fuel tank completely, ie, to prevent

condensation and corrosion.

Hydraulic reservoir Drain off any condensed water from the hydraulic
reservoir.

Sprinkler system (CA 251A) j Drain the water tank completely, even hoses, filter
housing and the water pump must be emptied.
Remove all the sprinkler nozzles over the drum and
wheels.

Steering cylinder, hinges, etc. Lubricate the steering articulation bearings and both
bearings of the steering cylinder with grease.
Grease the piston rod of the steering cylinder with
rust inhibiting grease.
Grease the engine hood hinges, seat slide rails,
revs control, and mechanism of the forward/reverse
control.
Tires Ensure that tire pressure is at least 150 kPa (1.5
kp/cm2) (22 psi), 110 kPa (1,1 kp/cm2) (16 psi) for
CA 251A.

Covers, tarpaulin j Close the instrument protection cover on the steering

column. Cover the entire roller with tarpaulin. The
tarpaulin must be kept clear of the ground.
If possible, park the roller indoors, preferably in a
building with even temperature.

30 CA 251/301 M251EN2
 SPECIAL INSTRUCTIONS

Standard oils and other On leaving the factory the various systems and
recommended fluids components are filled with oil or fluid as indicated in
Lubricant Specification, and are thus suitable for ope-
ration in ambient temperatures between -10°C (14°F)
and +40°C (104°F). The following recommendations
apply for operation in higher ambient temperatures up
to a maximum of +50°C (122°F):

Higher ambient temperature, The engine can be used at this temperature using
max. +50°C (122°F) normal oil but for other components the following fluids
must be used:
Hydraulic system: Shell Tellus Oil T100, or equivalent.
Other components using transmission oil: Shell Spirax
HD 85W/140, or equivalent.

The temperature limits apply to standard versions of

the roller.

Rollers that are fitted with additional equipment, such

as noise suppression, etc, may require extra observa-
tion in the higher temperature ranges.

High pressure washing CAUTION

A water jet should not be aimed directly at the
cap of the fuel tank or hydraulic reservoir.
This is especially important when using a
high-pressure jet.

Place a plastic bag over the cap and secure it with a

rubber band. This will avoid water entering the venting
hole in the filler cap, which would otherwise cause
operational disturbance and a clogged filter. Do not
spray electric components or the instrument panel.

Fire fighting In the event of fire in the machine, use an ABE-powder

fire extinguisher if possible. A BE type carbon dioxide
fire extinguisher may also be used.

Roll over protecting structure Absolutely no welding or drilling of holes is permitted

(ROPS) on the roll over protecting structure (ROPS). Never
repair a damaged structure, replace it with a new
ROPS.

Starting aid When using an auxiliary battery, ie, in addition to the

one installed on the roller, to assist starting, always
connect the positive terminal of the auxiliary battery to
the positive terminal of the roller battery, and negative
to negative.

CA 251/301 M251EN2 31
 ELECTRICAL SYSTEM

Fuses
The machine is equipped with a 12 volt electrical
system and an alternator.
CAUTION
Connect the battery to the correct polarity.
Negative to ground. The cable between the
alternator and battery must not be
1 2 3 4 5 6 7 8 9 10 11 12
disconnected when the engine is running.
CAUTION
Before carrying out any electric welding on the
Fig. 56 Fuse boxes machine, disconnect the battery grounding
1. Vibration control cable and then all terminals to the alternator.
2. Instruments
3. Horn/V-belt monitor, Deutz
4. Stop solenoid, Cummins The electrical regulating and control system is
5. Hazard beacon protected against overload by 8 A fuses, which are
6. - located in fuse boxes on the steering column, see
7. Brake valve maintenance diagram.
8. Gear selector
9. Sprinkler (CA 251A) The lower fuse box is only fitted on rollers that are
10. - equipped with driving lights, direction indicators and
11. -
12. Driving lights (optional equipment)
rear working lights.

Fig. 58 illustrates the fuse boxes that are fitted in the

cab, ie, in cases where this is relevant (optional).

13 14 15 16 17 18 19 20 21 22 23 24 1 2 3 4 5 6

Fig. 57 Lower fuse box (optional)

13. Working lights, rear
14. Parking lights, left 7 8 9 10 11 12
15. Parking lights, right
16. Direction indicator/left
17. Direction indicator/right
18. Low beam, left Fig. 58 Fuse box in cab (optional)
19. Low beam, right 10A 1. Front working lights
20. High beam, left 10A 2. Rear working lights
21. High beam, right 3A 3. Front spraying
22. Brake lights, right 15A 4. Fan
23. Brake lights, left 15A 5. Front wiper
24. - 15A 6. Rear wiper
3A 7. Interior lighting, Radio
7.5A 8. Air conditioner
9. -
10. -
3A 11. Hazard beacon
25A 12. Cab heater

32 CA 251/301 M251EN2