Removing, installing connection piece of AC compressor

AR83.55-L-1100A

Removing, installing connection piece of AC compressor

20.3.00

 

Removing, installing

Danger!

Risk of explosion from welding or braizing work on closed air conditioning system. Risk of poisoning from inhaling overheated refrigerant vapors. Risk of injury from skin and eye contact with liquid refrigerant.

Do not carry out any welding work on the closed air conditioning system or in the surrounding area. No smoking or naked flames. Wear eye protection and protective gloves. Work only in well ventilated areas. Do not carry out repair work on the circuit of the air conditioning system unless the system is drained.

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 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 for handling refrigerant R134a

All models with R134a refrigerant

AH83.30-N-0003-01A

1

Drain air conditioning system

AR83.30-L-1780A

2

Remove refrigerant compressor (4)

AR83.30-L-5300A

3

Unscrew screws (1)

 Screw, connecting piece to refrigerant compressor

*BA83.40-N-1001-01B

4

Remove connecting piece (2)

Installation: Replace seals (3).

5

Install in the reverse order



Inspecting

6

Evacuate air conditioning system, leak test

AR83.30-L-1762A

7.1

Fill air conditioning system, replenish (gaseous)

AR83.30-L-1767A

7.2

Fill air conditioning system (liquid)

AR83.30-L-1777A

8

Check air conditioning for proper function

 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.

9

Carry out brief check of air conditioning system

AR83.30-L-1209A

Number

Designation

Models 667,
668, 670
with code H03

BA83.40-N-1001-01B

Screw, connecting piece to refrigerant compressor

Nm

25