Remove/install A/C compressor

AR83.30-L-5300A

Remove/install A/C compressor

12.7.10

 

Remove/Install

Danger!

Risk of explosion from welding or soldering work on closed air conditioning system. Risk of poisoning. Inhaling overheated refrigerant vapors may be toxic. Risk of injury. Contact with liquid refrigerant may result in injury to the skin and eyes.

Do not carry out any welding work on the closed air conditioning system or in the surrounding area. No smoking or open flames. Wear eye protection and protective gloves. Work only in well ventilated areas. Carry out repair work on the air conditioning system circuit only after the system has been discharged.

AS83.00-Z-0001-01A

Danger!

Risk of accident from vehicle starting off by itself when engine running. Risk of injury from bruises and burns if you place your hand into the engine when it is started or when it is running.

Secure vehicle to prevent it from moving off by itself.
Wear closed and close-fitting work clothes.
Do not grasp hot or rotating parts.

AS00.00-Z-0005-01A



Protect air conditioning circuit and components from moisture when carrying out repair work

All models fitted with air conditioning

AH83.30-N-0005-01A



Notes on handling refrigerant R134a

All models with R134a refrigerant

AH83.30-N-0003-01A

1

Discharge air conditioning system

AR83.30-L-1780A

2

Remove poly V-belt

Engine 602.984/985

AR13.22-D-1202B

Engines 904.904/908/923

AR13.22-D-1202D

3

Remove connector (12)

 Mark connector (12).

4

Disconnect refrigerant lines (8, 9) from screw-in pipe connections (6, 7)

7/8" screw-in pipe connection, refrigerant compressor to refrigerant line

*BA83.40-N-1004-01B

11/16" screw-in pipe connection, refrigerant compressor to refrigerant line

*BA83.40-N-1005-01B

5

Unscrew bolts (10).

 Bolt, refrigerant compressor to combination holder

*BA83.40-N-1003-01B

6

Remove refrigerant compressor (4)

 Together with manifolds (2) and refrigerant lines (8, 9).

7

Unscrew screws (1)

 Bolt, manifold to connecting piece

*BA83.40-N-1002-01B

8

Remove manifold (2)

Installation: Install new sealing rings (3).

9

Remove refrigerant compressor connecting piece (4)

AR83.55-L-1100A

10.1

Replace refrigerant compressor (4)

Follow-up work:

Remove expansion valves

AR83.30-L-5530A

Total capacity

*BF83.30-N-1009-01A

10.2

Reconditioning refrigerant compressor (4)

Follow-up work:

Remove refrigerant compressor cylinder roller bearing (4)

AR83.55-L-5350A

Remove electromagnetic clutch

AR83.30-L-7682A

Remove refrigerant compressor shaft seal (4)

AR83.30-L-7686A

Total capacity

*BF83.30-N-1009-01A

11

Replace receiver/drier

 The fluid reservoir must be replaced whenever work is carried out in the air conditioning system.

AR83.30-L-6520A

12

Install in the reverse order



Inspecting

13

Evacuate air conditioning system and check for leaks

AR83.30-L-1762A

14.1

Fill and top up air conditioning system (gaseous)

AR83.30-L-1767A

14.2

Fill air conditioning system (liquid)

AR83.30-L-1777A

15

Check function of air conditioning

 Run engine at idling speed for about 5 minutes and check all the component functions which are of relevance for proper operation of the air conditioning system.

16

Perform quick test on air conditioning system

AR83.30-L-1209A

Number

Designation

Models 667,
668, 670
with Code H03

BA83.40-N-1002-01B

Bolt, manifold to connector

Nm

23

BA83.40-N-1003-01B

Bolt, A/C compressor to combination bracket

Nm

23

BA83.40-N-1004-01B

Pipe union 7/8", A/C compressor to refrigerant line

Nm

33 (4)

BA83.40-N-1005-01B

11/16" screw-in pipe connection, refrigerant compressor to refrigerant line

Nm

44 (4)

Number

Designation

Models
667, 668,
670 with Code H03

BF83.30-N-1009-01A

Total filling capacity, refrigerant

kg

1.225 (0.005)

Specifications for
service products

Sheet

BB00.40-P-0361-00A