Check hydraulic valve play compensation elements

AR05.00-S-2012PD

Check hydraulic valve play compensation elements

11.12.2018

Engine

699 in model 470, 471

2

Compensating element

4

Roller-type cam follower

5

Tool

 Warning

Risk of injury. Skin or eye injuries may result when handling hot or glowing objects.

Wear protective gloves, protective clothing and safety glasses, if necessary.

AS00.00-Z-0002-01A

 Caution

Risk of injury to skin and eyes due to handling of engine oil. Risk of poisoning caused by swallowing engine oil

Wear protective gloves, protective clothing and safety glasses.
Do not fill engine oil into beverage containers.

AS18.00-Z-0001-01A

Topical note

Notes on avoiding damage through contamination and foreign objects

AH00.00-P-5000-01A



Check

1

Check engine oil level.


The engine oil level must not lie above the maximum marking.
Engine damage can occur otherwise.

If necessary,



Correct engine oil level.



Low SPAsh multigrade service engine oils (specification 228.51)

BB00.40-P-0228-51A



Low SPAsh multigrade service engine oils (specification 229.31)

BB00.40-P-0229-31A



Remove

 Warning

Risk of burn injuries, suffocation and poisoning when working on the exhaust system and the components connected to it. Risk of suffocation and risk of poisoning caused by inhalation of gaseous and solid components of the exhaust. Risk of poisoning caused by skin contact with solid components of the exhaust.

Wear protective clothing and safety glasses. Use the extraction system. Move people out of the hazard area.

AS49.00-Z-0001-01A

 Warning

Risk of accident from vehicle starting off by itself when engine running. Risk of injury (bruises and burns) resulting from working on the engine while it is being started or when it is running.

Secure vehicle to prevent it from starting off 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 warm up to operating temperature.

 Coolant temperature approx. 80 °C.

3

Switch off engine.

4

Remove cylinder head cover.

AR01.20-S-5014PD



Check

5

Press compensating element (2) downward.


Do not use a steel tool.
Otherwise, damage may occur.

 To do this, press compensating element (2) with force of the hand over the roller-type rocker arm (4) using a suitable tool (5).

If several compensating elements (2) drop,



Check oil ducts and oil feed bores of the compensating elements (2) for contamination.

If necessary,



Blow compressed air through the oil ducts in the flow direction.

If one compensating element (2) drops strongly compared to the other compensating elements (2),



Replace affected compensating element (2).

AR05.00-S-2013PD



Install

6

Install cylinder head cover.

AR01.20-S-5014PD