Dumper system - oil change

AP55.20-W-5501A

Dumper system - oil change

9.8.06



The following work instructions apply to Meiller dumper systems installed in the Mercedes-Benz plant. In the case of other dumper systems, the operating and maintenance procedures of the relevant manufacturer must be observed. These alternative procedures may deviate from those described below.

 Danger!

Risk of injury to skin or eyes caused by hydraulic fluid spraying out under high pressure. Risk of poisoning caused by swallowing hydraulic fluid.

Depressurize the hydraulic system completely before starting any work on the system. Wear protective clothing and safety glasses.

AS00.00-Z-0013-01A

 Danger!

Risk of death. There is a risk of death to persons located within the dumping area or underneath the raised dumping platform during operation. Risk of injury There is a risk of body parts being crushed or pinched when the dumping platform is lowered.

All persons must remain outside the dumping area of the dumping platform during its operation. Always secure the dumping platform with platform supports before starting any work underneath it.

AS55.20-Z-0001-01A

1

Detach high-pressure hose (1) from the pressure line (arrow)

 Danger!

Risk of accident caused by vehicle starting off by itself when engine is running. Risk of injury caused by contusions and burns during starting procedure or when working near the engine as it is running

Secure vehicle to prevent it from moving by itself.
Wear closed and snug-fitting work clothes.
Do not touch hot or rotating parts.

AS00.00-Z-0005-01A

2

Start engine and run at idling speed

3

Switch on tipper pump, drain hydraulic fluid and collect using a suitable container

 As soon as hydraulic fluid stops flowing out of the high-pressure hose, shutdown the dumper pump immediately and switch off the engine.

4

Attach high-pressure hose (1) to the pressure line (arrow)

5.1

Detach fine-mesh filter from auxiliary frame

 Only for code (P70 or P79) Bordmatik.

6.1

Remove screen insert from fine-mesh filter and clean

 Only for code (P70 or P79) Bordmatik.



*BA55.30-N-1002-01B

7.1

Install fine-mesh filter

 Only for code (P70 or P79) Bordmatik.



*BA55.30-N-1001-01B

8

Clean the cap (3) and the area around it

9

Remove cap (3) and check air equalization ducts for continuity

 Do not remove the fine-mesh filter (4) in the filler neck.

Reservoir with oil filter in oil return and air filter for equalization air: Clean filter elements and check condition.

Replace damaged filter elements
- against a separate order.

10

Fill oil reservoir with hydraulic fluid up to the middle fine-mesh filter (4) or to the uppermost mark (arrow) on the oil dipstick (5)

 If it is not possible to fill the reservoir when the dumping platform is lowered, the dumping platform must be raised slightly and supported before draining the hydraulic fluid.



Tipper and hydraulic fluids

Sheet 341.0

BB00.40-P-0341-00A

11

Close cap (3)



Checking

 Danger!

Risk of accident caused by vehicle starting off by itself when engine is running. Risk of injury caused by contusions and burns during starting procedure or when working near the engine as it is running

Secure vehicle to prevent it from moving by itself.
Wear closed and snug-fitting work clothes.
Do not touch hot or rotating parts.

AS00.00-Z-0005-01A

12

Start engine and switch on tipper pump

13

Operate control valve (2) and raise the dumping platform fully to the back

14

Support the dumping platform

15

Switch off the tipper pump and turn off the engine

16

Check fluid level in oil container

 Oil reservoir without dipstick (5):
Remove fine-mesh filter (4). An oil level (A) of approx. 40 to 50 mm must be given, top up if necessary.

Oil reservoir with oil dipstick (5):
Oil may not drop below the lower marking (arrow) on the oil dipstick (5), if necessary, top up hydraulic fluid.



Tipper and hydraulic fluids

Sheet 341.0

BB00.40-P-0341-00A

17.1

Insert fine-mesh filter (4) and seal oil reservoir

Oil reservoir without oil dipstick (5).

17.2

Insert oil dipstick (5) and fasten

Oil reservoir with oil dipstick (5).

When the dumping platform is lowered the oil level must not exceed the upper mark (arrow) on the oil dipstick (5).

18

Lower the dumping platform

Number

Designation

Model 932, 942, 952, with code P70, P79

BA55.30-N-1001-01B

Union nut forming bolted connection with hydraulic hose

M261.5

Nm

180

M361.5

Nm

250

BA55.30-N-1002-01B

Screw-in fitting to filter housing

Nm

300