Remove/install compressor · ar1330w5510b · Mercedes-Benz WIS

AR13.30-W-5510B

Remove/install compressor

24.1.12

ENGINES 906.9 in MODEL 374, 958, 970, 972, 974, 975, 976 with CODE (MZ9) Dual compressor

ENGINES 906.9 in MODEL 374, 375, 950, 952, 953, 954, 958 with CODE (MZ9) Dual compressor

W13.30-1052-06

Shown on ENGINE 906.9 in MODEL 950

1 Power steering pump

2 Cross plate

3 Dual compressor

4 Sealing rings

5 Coolant return flow line

6 Fitting

7 Compressed-air line

8 Suction pipe

9 Coolant feed line

10 Sealing rings

11 Drive gear

12 Nut

13 O-ring

14 Bracket

W13.30-1054-10

11 Drive gear

12 Nut

15 Three-arm puller

16  Blocking device

Modification notes

2.4.07	Screw/bolt, compressor to crankcase		*BA13.30-N-1006-01A
2.4.07	Fitting, compressed air line to compressor		*BA13.30-N-1007-01A

 	Remove/install
 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
1	Tilt cab	 Installation: Tilt the cab back after the leak test has been conducted
	Notes on tilting the cab		AH60.80-N-0003-01A
2	Remove soundproofing from frame on the left and below
 Danger!	Risk of injury to skin and eyes caused by scalding from contact with hot coolant spray. Risk of poisoning caused by 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
3	Drain coolant		AR20.00-W-1142C
	Notes on coolant		AH20.00-N-2080-01A
4	Remove coolant return flow line (5) at dual compressor (3)	 Installation: Install new sealing rings (4).
			*BA13.30-N-1004-01A
5	Remove coolant feed flow line (9) at dual compressor (3)	 Installation: Install new sealing rings (10).
			*BA13.30-N-1004-01A
6	Remove compressed air line (7) at dual compressor (3)	 Counterhold fitting (6).
7	Check compressed-air line (7) for carbon deposits	 In the event of carbonization, also check compressed air lines between dual compressor (3), compressed air drier and the four-circuit protection valve, if necessary replace the carbonized parts.

8	Disconnect suction line (8) at dual compressor (3)
9	Detach power steering pump (1) from dual compressor (3) and remove cross plate (2)	 Put power steering pump (1) with attached steering lines to one side.
			*BA46.30-N-1001-01B
10	Remove brackets (14) at dual compressor (3) and crankcase
11	Remove dual compressor (3)	 Collect engine oil which flows out.
		 Installation: Possibly turn drive wheel (11) to introduce it. Tighten bolts diagonally.
			*BA13.30-N-1006-01A
12	Remove O-ring (13) at dual compressor (3)	 Installation: Install new O-ring (13).
13	Clamp blocking device (16) in vise and attach dual compressor (3)	 Only necessary if the drive gear (11) must be removed.
			*904589036300
14	Remove nuts (12) and detach drive gear (11) with three-arm puller (15) from dual compressor (3)	 Only necessary if the drive gear (11) must be removed.
			*BA13.30-N-1005-01A
15	Disconnect fitting (6) at dual compressor (3)	 Only if fitting (6) leaks.
		 Installation: Install new sealing ring.
			*BA13.30-N-1007-01A
16	Install in the reverse order
17	Check engine oil level using oil dipstick or on display, correct if necessary	 Observe engine oil grade set in maintenance system or Specifications for Operating Fluids.
 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
18	Start engine	 Do not rev up engine before oil pressure is indicated. The oil pressure gauge must indicate oil pressure after about 10 seconds.	*BE18.00-N-1001-01C
19	Switch off engine and check for leaks	 Visual inspection.

Check values for engine oil pressure

Number	Designation			Engines 900.9, 902.9, 904.9, 906.9


BE18.00-N-1001-01C	Engine oil pressure at	Idling speed	bar	0.5
		maximum speed	bar	2.5

 Compressor (compressed air system)

Number	Designation		Engines 900.9, 902.9, 904.9, 906.9


BA13.30-N-1004-01A	Banjo bolt, coolant line to compressor	Nm	40
BA13.30-N-1005-01A	Nut, drive gear to compressor	Nm	270
BA13.30-N-1006-01A	Screw/bolt, compressor to crankcase	Nm	50
BA13.30-N-1007-01A	Fitting, compressed air line to compressor	Nm	90

 Power steering pump

Number	Designation		Steering 765.8, 766.4 with engine 900.9, 902.9, 904.9, 906.9, 924.9, 925.9, 926.9


BA46.30-N-1001-01B	Screw/bolt, power steering pump to compressor	Nm	40

904 589 03 63 00

Blocking device

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