Dumper system - check function, play and attachment

AP55.20-W-5550A

Dumper system - check function, play and attachment

21.4.97



Check



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 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 jammed 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

 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 engine

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

AS00.00-Z-0005-01A

1

Start engine and switch on tipper pump.

 The power take-off indicator lamp must come on.

2

Actuate control valve (1) and raise dumping platform.

 The "dumping platform" indicator lamp must light up before the dumping platform is raised.

3

Check the operation and setting of the shutoff valve; to do this, the dumping platform will have to be raised as far as the cutoff.

 When the platform is raised backwards or to the side, the shutoff valve must open before the safety ropes (3) tighten; this also applies at increased engine speed and maximum pump delivery rate.

If damage or defects are found:



rectify any damage/defects

- subject to separate repair order.

4

Check condition and attachment of frame (2) and safety ropes (3).

 If damage or defects are found:



rectify any damage/defects

- subject to separate repair order.

5

Check whether dumping platform support (4) is still serviceable.

 If damage or defects are found:



rectify any damage/defects

- subject to separate repair order.

6

Lower the dumping platform

7.1

Check setting of automatic claw-type lock.

Gate with claw-type lock

 The roller (7) of the rocker arm (6) must rest on the cam (8) free of play. There must be a gap (A) of approx. 6 mm between the claw (10) and stop (9).

If damage or defects are found:



rectify any damage/defects

- subject to separate repair order.

7.2

Check setting of automatic cam lock.

Gate with cam lock

 The roller (7) of the rocker arm (6) must rest on the cam (8) free of play. There must be a gap (A) of approx. 1 to 3 mm between the cam (12) and stop (11). There must be a gap (C) of approx. 3 mm between the dumper floor and rear wall.

If damage or defects are found:



rectify any damage/defects

- subject to separate repair order.

8

Check that the lock functions correctly by slowly raising the dumping platform.

 The claw (10) or cam (12) must release the stop (9 or 11) at a tilt angle of
approx. 6 °.

If damage or defects are found:



rectify any damage/defects

- subject to separate repair order.

9

Lower dumping platform and switch dumper pump off

 The power take-off indicator lamp must go out.

10

Turn off engine