ar1330w0002ng

Remove/install 2-cylinder compressor

Type ar · emne 13.30 · version 0100 · 2016-02-22

Gælder for: Engine 936.9 in model 956 with code M2H (Engine M936G, 222 kW (302 hp),1200 Nm)

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Placering

Funktionsgruppe 1 Motor › 13 Kompressor, remtræk › 13.30 Kompressor (trykluftsystem) — Serie 936 (modeller 9**) · Serie 956

EinPAS 21 bremser/vakuumsystem/trykluftsystem › 21.35 trykluftsystem › 21.35.35 Kompressor — Serie 936 (modeller 9**) · Serie 956

AR13.30-W-0002NG

Remove/install 2-cylinder compressor

27.01.2016

Engine

936.9 in model 956

with code M2H (Engine M936G, 222 kW (302 hp),1200 Nm)

Remove/install 2-cylinder compressor

W13.30-1228-09

Shown on engine with compressor (6) from Voith

1

Air intake duct

4

Engine oil filler pipe

7

Oil suction hose

2

Resonator

5

Compressed-air line

8

Oil pressure line

3

Air intake duct

6

Compressor

9

Power steering pump

Remove/install 2-cylinder compressor

6

Compressor

12

Coolant line

13

Coolant line

14

Bracket

W13.30-1229-11

Remove/install 2-cylinder compressor

6

Compressor

10

Coolant pipe

11

Air suspension bellows (with code A1A (Air-sprung front axle))

15

Electrical line

16

Engine wiring harness

17

Vehicle wiring harness

18

Bracket

19

Bracket

B600

Crankshaft position sensor

W13.30-1230-06

Remove/install 2-cylinder compressor

Shown on compressor (6) from Voith

6

Compressor

20

Drive gear

21

Sealing ring

22

Sealing ring

23

Fitting

24

Fitting

W13.30-1231-06

Danger !

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

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

Danger !

Risk of injury to skin and eyes suffering scalding from contact with hot coolantspray. Risk of poisoning from swallowing coolant.

Do not open cooling system unless coolant temperature is below 90 °C. Open cap slowly and release the pressure. Do not pour coolant into beverage containers.
Wear protective gloves, protective clothing and safety glasses.

AS20.00-Z-0001-01A

Notes on avoiding damage through contamination and foreign objects

AH00.00-N-5000-01H

Notes on self-locking nuts and bolts

AH00.00-N-0001-01A

Notes on coolant

AH20.00-N-2080-01A

Notes on tilting the cab

AH60.80-N-0003-01A

Notes on engine oil

AH18.00-N-0101-01HA

Remove/install

1

Tilt cab

Installation: Only tilt back cab after the leak test.

2

Remove soundproofing

3

Drain coolant at engine radiator

AR20.00-W-1142NE

4

Remove air intake duct (1) on resonator (2)

5

Unfasten resonator (2)

6

Remove air intake duct (3)

7

Remove engine oil filler pipe (4) on the oil pan

8

Expose engine oil filler pipe (4) and bind to one side

9

Remove compressed air line (5) from compressor (6)

Installation: Check compressed-air line (5) for carbonization. In event of any carbonization the air line (5) and the carbonized parts must be replaced.

Union nut, air line to fitting for compressor

*BA13.30-N-1008-01N

10

Remove control line from compressor (6)

Only for compressor (6) from Knorr.

Installation: Replace sealing ring.

Union nut, control line to compressor

*BA13.30-N-1003-01N

11

Remove oil suction hose (7) and oil pressure line (8) for power steering pump (9) on vehicle frame

12

Remove left black coolant pipe (10) from the oil pan

13

Remove front left air suspension bellows (11)

Only for vehicles with code A1A (Front axle air-sprung).

AR32.22-W-2013NE

14

Remove power steering pump (9) from compressor (6) and place with attached oil suction hose (7) and oil pressure line (8) to one side

Bolt, power steering pump to compressor

*BA13.30-N-1009-01N

15

Remove upper coolant line (12)

Collect flowing out coolant in a suitable container.

16

Release and remove lower coolant lines (13) on compressor (6)

Collect flowing out coolant in a suitable container.

17

Remove bracket (14)

Bolt, bracket for compressor to crankcase

*BA13.30-N-1010-01N

Bolt, bracket to compressor

*BA13.30-N-1011-01N

18

Disconnect electrical connection on crankshaft position sensor (B600) and expose electrical line (15)

19

Expose engine wiring harness (16) and vehicle wiring harness (17) on crankcase and timing case

20

Remove bracket (18) from engine wiring harness (16) and vehicle wiring harness (17)

21

Remove bracket (19) from engine wiring harness (16) and vehicle wiring harness (17) on timing case

22

Remove compressor (6) from timing case

Collect escaping engine oil in a suitable container.

Installation: First insert the rear upper screw/bolt, then place compressor (6) on the timing case. Turn the drive gear (20) of the compressor (6) if necessary.

Bolt, compressor to timing case

*BA13.30-N-1001-01N

23

Check drive gear (20) for damage

If damage is found

Replace drive gear (20) and also check the counter-gearwheel for the gearwheel drive involved for damage; replace if necessary.

Nut, (left-hand thread) drive gear to compressor

*BA13.30-N-1002-01N

24

Remove sealing rings (21, 22) at compressor (6)

Installation: Renew sealing rings (21, 22).

25

Remove fitting (23) on compressor (6)

Only if compressor (6) was replaced or fitting (23) is leaky.

Fitting to compressor

*BA13.30-N-1007-01N

26

Remove fitting (24) for the coolant lines (12, 13) on the compressor (6)

Only if compressor (6) was replaced or fitting (24) is leaky.

Fitting, coolant line to compressor

*BA13.30-N-1006-01N

27

Install in the reverse order

28

Check engine oil level at display; correct if necessary

Observe set engine oil specification in the maintenance system.

29

Start engine and perform an engine test run

Allow engine to run at a higher rotational speed.

30

Check all connections on the compressor (6) for leaktightness and stop engine

Visual inspection.

Compressor (compressed air system)

Number

Designation

Engine 936.9

BA13.30-N-1001-01N

Bolt, compressor to timing case

Stage 1

Nm

10

Stage 2

Nm

50

Compressor (compressed air system)

Number

Designation

Engine 936.9

BA13.30-N-1002-01N

Nut, (left-hand thread) drive gear to compressor

Nm

230

Compressor (compressed air system)

Number

Designation

Engine 936.9

BA13.30-N-1003-01N

Union nut, control line to compressor

Nm

5

Compressor (compressed air system)

Number

Designation

Engine 936.9

BA13.30-N-1006-01N

Fitting, coolant line to compressor

M161.5

Nm

50

M181.5

Nm

45

Compressor (compressed air system)

Number

Designation

Engine 936.9

BA13.30-N-1007-01N

Fitting to compressor

M141.5

Nm

40

M261.5

Nm

75

Compressor (compressed air system)

Number

Designation

Engine 936.9

BA13.30-N-1008-01N

Union nut, air line to fitting for compressor

Nm

75

Compressor (compressed air system)

Number

Designation

Engine 936.9

BA13.30-N-1009-01N

Bolt, power steering pump to compressor

M10

Nm

50

Compressor (compressed air system)

Number

Designation

Engine 936.9

BA13.30-N-1010-01N

Bolt, bracket for compressor to crankcase

Nm

30

Compressor (compressed air system)

Number

Designation

Engine 936.9

BA13.30-N-1011-01N

Bolt, bracket to compressor

Nm

50

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