Check turbocharger

AR09.40-W-5911H

Check turbocharger

08.11.2018

Engine

470.9 in model 963, 964

Engine

471.9 in model 963, 964

1

ATL

2

Rotor shaft

3

Vacuum cell

4

Exhaust pipe

Y636

Boost pressure positioner

 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 with the safety strut.

AS60.80-Z-0001-01A

Topical note

Notes on avoiding damage through contamination and foreign objects

AH00.00-N-5000-01H

Topical note

Notes on tilting the cab

AH60.80-N-0003-01A



Remove

1

Open maintenance flap

2

Tilt cab

3

Remove air filter with carrier

Only for vehicles without code M8A (Air intake from the front)

AR09.10-W-1050-01H

4

Remove exhaust pipe (4) downstream of ATL (1)

Only for assessment of the turbine side and exact measurement of the axial play.

AR49.10-W-5532H



Check

5

Eliminate oil deposits by turning the rotor shaft (2) in the ATL (1)

6

Check ATL (1) and accordion hose between air filter and ATL (1) for oil deposits

Notes for evaluation of turbocharger in the event of engine blue smoke

AH09.40-N-0001-01A

7

Check ease of movement of rotor shaft (2) in ATL (1)

8

Check axial and radial play of rotor shaft (2) in ATL (1)

AR09.40-W-5910-01H

Radial play on rotor shaft

*BE09.40-N-1002-02H

Axial play on rotor shaft

*BE09.40-N-1001-02H

 Dial gage

*001589532100

9

Check vacuum cell (3)

AR09.40-W-5910-03H

 Tester

*124589152100



Install

10

Install exhaust pipe (4) downstream of ATL (1)

Only if the exhaust pipe (4) was removed.

AR49.10-W-5532H

11

Install air filter with carrier

Only for vehicles without code M8A (Air intake from the front)

AR09.10-W-1050-01H

 Clamp, air intake hose to turbocharger

*BA09.20-N-1001-01E

 Bolt/nut, air intake pipe to bracket

*BA09.10-N-1002-01D

12

Start engine and subsequently run the engine with changing rpms, check ATL (1) and accordion hose for leaktightness, then stop the engine

 Visual inspection.

13

Tilt back cab

14

Close maintenance flap

Check values for turbocharger

Number

Designation

Engine 471.9
with code M5Z (Engine version, Euro VI)

Engine 471.9
with code M5Y (Engine version, Euro V)

BE09.40-N-1001-02H

Axial play on rotor shaft

mm

0,13

0,13

Check values for turbocharger

Number

Designation

Engine 470.9

BE09.40-N-1001-02H

Axial play on rotor shaft

mm

0,13

Check values for turbocharger

Number

Designation

Engine 471.9
with code M5Z (Engine version, Euro VI)

Engine 471.9
with code M5Y (Engine version, Euro V)

BE09.40-N-1002-02H

Radial play on rotor shaft

mm

0,6

0,5

Check values for turbocharger

Number

Designation

Engine 470.9

BE09.40-N-1002-02H

Radial play on rotor shaft

mm

0,5

 Air filter

Number

Designation

Engine 470.9, 471.9, 473.9 in model all
except code M8A (Air intake, from front)
Engine 936.9 in model 963, 964
except code M8A (Air intake, from front)

Engine 470.9, 471.9, 473.9 in model all
with code M8A (Air intake, from front)
Engine 936.9 in model 963, 964
with code M8A (Air intake, from front)

BA09.10-N-1002-01D

Bolt/nut, air intake pipe to bracket

Nm

20

-

 Intake manifold

Number

Designation

Engine 470.9, 471.9, 473.9, 934.9, 936.9

BA09.20-N-1001-01E

Clamp, air intake hose to turbocharger

Nm

6