Remove/install actuating cylinder for turbobrake

AR14.15-W-3003C

Remove/install actuating cylinder for turbobrake

15.2.12

 

Remove/install



Notes on self-locking nuts and bolts

AH00.00-N-0001-01A

1

Switch off ignition

 Danger!

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

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

AS60.80-Z-0001-01A

2

Tilt cab

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



Notes on tilting the cab

AH60.80-N-0003-01A

3

Remove soundproofing on frame above on the right

 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

4

Disconnect ground lead from battery



Notes on battery

AH54.10-P-0001-01A

5

Remove heat shield (1) on turbobrake (3)



*BA14.15-N-1007-02A

6

Detach tensioning strap (5) from bracket



*BA49.10-N-1006-01K

7

Take off clamp (4) to lifting eye



*BA49.10-N-1001-01K

8

Remove clamp (6), press front muffler (2) to the rear and bind up

 Installation: Clean sealing surfaces.



*BA49.10-N-1002-01K

9

Take off compressed air line (7) at actuating cylinder (11)

10

Remove locking clamp (12) to ball socket (13).

11

Slacken bolt (9) on actuating cylinder (11)



*BA14.15-N-1020-02A

12

Press ball socket (13) off actuation bracket.

13

Remove bolts (14) and actuating cylinder (11) with holder (8)



*BA14.15-N-1021-02A

14

Slacken bolt (9) on new actuating cylinder (11)

 Only when replacing the actuating cylinder (11).

 The actuating cylinder (11) is adjusted at the works and must not be altered since this can lead to malfunctions of the turbobrake (3).

15

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

16

Start engine and perform an engine test run

17

Check area of the turbobrake (3), exhaust manifold and front muffler (2) for leaks then stop the engine

 Visual inspection.

18

Synchronizing time between tachograph disc and display

Number

Designation

Engine
457.9 with code MZ4

BA14.15-N-1007-02A

Bolt, heat shield to turbobrake

Nm

20

BA14.15-N-1020-02A

Bolt and nut, actuating cylinder to bracket

Nm

30

BA14.15-N-1021-02A

Bolt, actuating cylinder bracket to brake module

Nm

30

Number

Designation

Engine
457.9

BA49.10-N-1001-01K

Bolt, clamps to front muffler, exhaust pipe, muffler and exhaust flex pipe

Nm

50

BA49.10-N-1002-01K

Bolt, front muffler clamp to engine brake flap fitting/brake module for turbobrake

Nm

15

BA49.10-N-1006-01K

Bolt, tensioning strap to front muffler on bracket

Nm

25