Remove/install refrigerant compressor · ar8355w5300a · Mercedes-Benz WIS

AR83.55-W-5300A

Remove/install refrigerant compressor

12.10.10

MODEL 957 with BODY 957.810 with CODE (H03) Air conditioning in front end

W83.55-1001-06

1 Refrigerant compressor

2 High-pressure refrigerant hose

3 Low-pressure refrigerant hose

4 Electrical connector

5 High-pressure refrigerant pipe

6 Low-pressure refrigerant pipe

7 Bolts

 	Remove/install
 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
1	Tilt cab into repair position
	Notes on tilting the cab		AH60.80-N-0003-01A
 Danger!	Risk of explosion caused by welding or soldering work on closed air conditioning system. Risk of poisoning caused by inhaling overheated refrigerant vapors. Risk of injury to skin and eyes caused by contact with liquid refrigerant.	Never perform welding work on or near a closed air conditioning system. No smoking or open flames. Wear safety glasses 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 drained.	AS83.00-Z-0001-01A
2	Discharge air conditioning system		AR83.30-W-1760A
	Protect air conditioning circuit and components from moisture when carrying out repair work		AH83.30-N-0005-01A
	Notes on handling R134a refrigerant		AH83.30-N-0003-01A
3	Remove both V-belts		AR13.22-W-1202C
4	Detach low-pressure refrigerant hose (3) on low-pressure refrigerant pipe (6)		*BA83.30-N-1005-02B
5	Detach high-pressure refrigerant hose (2) on high-pressure refrigerant pipe (5)		*BA83.30-N-1004-02B
6	Separate electrical connector of magnetic clutch (4)
7	Remove screws/bolts (7) and remove refrigerant compressor (1)		*BA83.55-N-1001-01C
8	Detach high-pressure refrigerant pipe (5) and low-pressure refrigerant pipe (6) from refrigerant compressor (1)	 Only when replacing refrigerant compressor (1).
		 Installation: Replace sealing rings.
			*BA83.55-N-1003-01C
9	Correct oil level in refrigerant compressor (1)	 Only when replacing refrigerant compressor (1).	AR83.55-W-5250A
10	Install in the reverse order
11	Evacuate air conditioning system, refill and check for leaks		AR83.30-W-1760A
12	Check function of air conditioning

 Refrigerant lines

Number	Designation			Model 957 with code H03


BA83.30-N-1004-02B	Union nut, high-pressure refrigerant line from refrigerant compressor	WAF 27	Nm	35
BA83.30-N-1005-02B	Union nut, low-pressure refrigerant line to refrigerant compressor	WAF 32	Nm	45

 Refrigerant compressor

Number	Designation		Model 374.5, 375.1, 375.3, 949, 950.5, 950.6, 952.5, 952.6, 953.6, 954.5, 957, 958.0, 958.2, 970, 972, 974, 975, 976


BA83.55-N-1001-01C	Bolt, refrigerant compressor/bracket	Nm	25
BA83.55-N-1003-01C	Bolt, refrigerant line to refrigerant compressor	Nm	20

Referenced documents

ah6080n000301a Notes on tilting the cab
ah8330n000301a Notes on handling refrigerant R134a
ah8330n000501a Protect air conditioning circuit and components from moisture when carrying out repair work
ar1322w1202c Remove/install poly-V belt
ar8330w1760a Drain, evacuate and recharge air conditioning, check for proper operation and check for leaks
ar8355w5250a Correct oil level in air conditioning system when replacing AC compressor
as6080z000101a Risk of injury caused by body parts being pinched or crushed as cab is tilted
as8300z000101a Risk of explosion caused by welding or soldering work on closed air conditioning system. Risk of poisoning caused by inhaling overheated refrigerant vapors. Risk of injury to skin and eyes caused by contact with liquid refrigerant.