Remove/install cylinder head cover

AR01.20-W-5014C

Remove/install cylinder head cover

10.06.2020

Engine

457.9 in model 374, 375, 940, 942, 943, 944, 958

Shown on model 944

1

Cylinder head cover

2

Seal

 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

 Warning

Risk of injury caused by body parts being pinched or crushed as cab is tilted

Ensure that no one is within the tilting range of the cab as it is being tilted. Always tilt the cab all the way to the end position and secure it with the safety strut.

AS60.80-Z-0001-01A

Topical note

Notes on tilting the cab

AH60.80-N-0003-01A

 

Remove/install

1

Tilt the cab.

 Installation: Only tilt back cab after the leak test.

2

Remove cylinder head cover (1).

 Installation: Make sure that the seal (2) is seated correctly.

 Bolt, plastic cylinder head cover to cylinder head

*BA01.20-N-1002-01Q

3

Remove seal (2).

 Installation: Clean the sealing surfaces of cylinder head cover (1) and the cylinder head.
Install new seal (2).

4

Install in the reverse order.

5

Allow engine to run and check area of the cylinder head cover (1) for leak tightness.

 Visual inspection.

 Crankcase ventilation system, cylinder head cover

Number

Designation

Engine 457.9 in model 374, 375, 695, 940, 942, 943, 944, 949, 958

BA01.20-N-1002-01Q

Bolt, plastic cylinder head cover to cylinder head

Nm

20