Remove/install exhaust pipe

AR49.10-W-5530E

Remove/install exhaust pipe

21.2.12

 

Remove/install



Notes on self-locking nuts and bolts

AH00.00-N-0001-01A

1

Open maintenance flap

 Only on model 957.

2

Switch off ignition

 Danger!

Risk of explosion caused by escaping oxyhydrogen gas. Risk of injury caused by caustic burns to eyes, skin and mucous membranes from battery electrolyte (contains diluted sulfuric acid) or metal spatter due to short circuit. Risk of burn injuries caused by short circuit. Risk of poisoning caused by swallowing battery electrolyte (contains diluted sulfuric acid) or absorption of lead over the skin or orifices

No fire, sparks, open flames or smoking.

Wear acid-resistant gloves and clothing and safety glasses with side guards.

Do not place any conductive objects on the battery and avoid any short circuit from battery positive to ground.

Only fill liquid battery electrolyte (diluted sulfuric acid) into suitable and appropriately marked containers.

AS54.10-Z-0001-01A

3

Disconnect ground lead from battery



Notes on battery

AH54.10-P-0001-01A

 Danger!

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 with the safety strut.

AS60.80-Z-0001-01A

4

Tilt cab

 Installation: Only tilt cab back after leak test has been conducted.



Notes on tilting the cab

AH60.80-N-0003-01A

5

Remove soundproofing on frame above on the right

6.1

Detach clamp (3) at engine brake valve fitting (10)

Vehicles without code (MS8) Natural gas engine

 Installation: Pay attention to the installation position of the clamp (3). There must be a distance (A) of at least 20 mm between the bolt head on the clamp (3) and the end stop (arrow) of the adjusting lever (9).



*BA49.10-N-1002-01O

6.2

Detach clamp (3) at exhaust connection

Vehicles with code (MS8) Natural gas engine



*BA49.10-N-1002-01O

7

Detach clamps (2) at bracket



*BA49.10-N-1004-01O

8

Release clamp (4) and detach exhaust pipe with exhaust flex pipe (1) at exhaust pipe (6)

 On engine with code (MS4) BlueTec 4 or with code (MS5) BlueTec 5, press the AdBlue wiring harness (12) to the side.

 Installation: Check exhaust pipe with exhaust flex pipe (1) for damage, replace if required.

On engine with code (MS4) BlueTec 4 or with code (MS5) BlueTec 5, the protective covering of the AdBlue wiring harness (12) must not touch the guard plate (11) or the exhaust pipe with exhaust flex pipe (1).



*BA49.10-N-1001-01O



Assembly notes and installed dimensions for exhaust flex pipes

AH49.10-N-0301-01A

9

Detach guard plate (11) at exhaust pipe with exhaust flex pipe (1)

 Only on engine with code (MS4) BlueTec 4 or with code (MS5) BlueTec 5 if the exhaust pipe with exhaust flex pipe (1) is replaced.

10

Remove clamp (5) on bracket



*BA49.10-N-1004-01O

11

Loosen the clamp (7)



*BA49.10-N-1001-01O

12

Detach exhaust pipe (6) at muffler (8)

13

Install in the reverse order

 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

14

Start the engine and check the exhaust system for leaktightness, then turn off the engine

15

Synchronize the time of the record sheet admission

 Only on vehicles with MTCO tachograph.

Number

Designation

Engine
900.9, 902.9, 904.9, 906.9, 924.9, 925.9, 926.9

BA49.10-N-1001-01O

Bolt, clamp to exhaust pipe, muffler and exhaust flex pipe

Nm

50

BA49.10-N-1002-01O

Bolt, exhaust pipe clamp to engine brake flap fitting/exhaust connection

Nm

15

BA49.10-N-1004-01O

Bolt, clamp to holder

Nm

50