Remove/install 1-cylinder compressor

AR13.30-G-0001UV

Remove/install 1-cylinder compressor

14.02.2020

Engine

934.97 in model 405

Modification notes

13.02.2020

Check gearwheel (6) for damage and wear, added.

Operation step 17

13.02.2020

Check counter gear of the gearwheel (6) in the timing case for damage, added.

Operation step 18

1

Compressed-air line

2

Control line

1

Compressed-air line

2

Control line

3

Coolant lines

4

Screw

5

Compressor

5

Compressor

6

Gear

7

O-ring

8

O-ring

9

Fitting

10

Fitting

 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 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

 Caution

Risk of injury to skin and eyes due to handling of engine oil. Risk of poisoning caused by swallowing engine oil

Wear protective gloves, protective clothing and safety glasses.
Do not fill engine oil into beverage containers.

AS18.00-Z-0001-01A

Topical note

Notes on avoiding damage through contamination and foreign objects

AH00.00-N-5000-01H

Topical note

Notes on self-locking nuts and bolts

AH00.00-N-0001-01A

Topical note

Notes on coolant

AH20.00-N-2080-01A

Note on calculation of tightening torque when using insertion or socket tools with various effective lengths

AH00.00-P-0015-01CW

 

Remove/install

1

Drain off coolant.



AP20.00-G-2080U

2

Tilt cab to repair position.

AR60.80-G-0005B

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

3

Remove ground line of battery.

AR54.10-G-0003UG

4

Remove compressed-air line (1) between the compressor (5) and the first separating point.

 Installation: Check compressed-air line (1) for carbonization.

If problems exist,



Replace air line (1) and all carbonized parts.

 Union nut, compressed air line to compressor fitting

*BA13.30-N-1008-01P

5

Seal fitting (9) on the compressor (5) with a suitable stop plug.

 Plug

*963589019100

6

Completely remove control line (2).

 Union nut, control line to compressor

*BA13.30-N-1003-01P

7

Seal connection fittings of the control line (2) with suitable stop plugs.

 Record plug

*129589009100

8

Remove power steering pump.

Engine 934.97

AR46.30-G-0500UV

 Installation: Only purge steering equipment after pouring in the coolant.

9

Release coolant lines (3), remove, and collect escaping coolant.

10

Remove screw (4) from the fuel line bracket.

11

Remove screws of the compressor (5) from the timing case.

 The compressor (5) is fastened with four screw/bolts on the timing case.
First remove the rear upper screw/bolt.

 Bolt, compressor to timing case

*BA13.30-N-1001-01P

12

Remove compressor (5) and collect escaping engine oil.

 Installation: First insert the rear upper screw/bolt in the bore on the compressor (5), then place the compressor (5) on the timing case.
If necessary turn the gear (6) of the compressor (5).

13

Remove O-rings (7, 8) from the compressor (5).

 Installation: Install new O-rings (7, 8).

14

Remove fittings (9, 10) from the compressor (5).

Only if compressor (5) was replaced or fitting (9, 10) is leaky.

 Fitting to compressor

*BA13.30-N-1007-01P

15

Remove fittings of the coolant lines (3) from the compressor (5).

Only if the compressor (5) is replaced or the fittings for the coolant lines (3) are leaky.

 Fitting, coolant line to compressor

*BA13.30-N-1006-01P

16

Remove fitting of the control line (2) from the compressor (5).

Only if compressor (5) was replaced or fitting of control line (2) is leaky.

 Fitting to compressor

*BA13.30-N-1007-01P



Check

17

Check gearwheel (6) for damage and wear.

If problems exist,



replace gearwheel (6).

AR13.30-G-7044U

18

Check counter gear of the gearwheel (6) in the timing case for damage.

If problems exist,



replace counter gear.

AR05.10-G-4660U

19

Install in the reverse order.



Check

20

Check engine oil level on the instrument cluster.



AP18.00-G-0101-07U

If problems exist,



Correct engine oil level .

 Engine oil

*BF18.00-N-1001-01T

21

Start engine and perform an engine test run.

22

Check all connections and lines on the compressor (5) for leak tightness.

 Visual inspection.

23

Switch off engine.

24

Check/correct coolant level.



AP20.00-G-2010U

 Compressor (compressed air system)

Number

Designation

Engine 934.9

BA13.30-N-1001-01P

Bolt, compressor to timing case

Stage 1

Nm

10

Stage 2

Nm

50

 Compressor (compressed air system)

Number

Designation

Engine 934.9

BA13.30-N-1003-01P

Union nut, control line to compressor

Nm

5

 Compressor (compressed air system)

Number

Designation

Engine 934.9

BA13.30-N-1006-01P

Fitting, coolant line to compressor

M18x1.5

Nm

45

 Compressor (compressed air system)

Number

Designation

Engine 934.9

BA13.30-N-1007-01P

Fitting to compressor

M10x1

Nm

25

M14x1.5

Nm

40

M26x1.5

Nm

75

M36x1.5

Nm

15

 Compressor (compressed air system)

Number

Designation

Engine 934.9

BA13.30-N-1008-01P

Union nut, compressed air line to compressor fitting

Nm

75

 Filling capacities for engine lubrication system

Number

Designation

Engine 934.97

BF18.00-N-1001-01T

Engine oil

Filling capacity with oil filter

Liter

17

Sheet

BB00.40-P-0228-51A