Remove and install electromagnetic clutch at A/C compressor · ar8355w7682b · Mercedes-Benz WIS

AR83.55-W-7682B

Remove and install electromagnetic clutch at A/C compressor

9.12.10

MODEL 930, 932, 933, 934 with CODE (H03) Air conditioning in front end

MODEL 930, 932, 933, 934 with CODE (H07) Automatic air conditioning

Remove and install electromagnetic clutch at A/C compressor

W83.55-1037-01

1 Pressure plate

20  Pronged wrench

W83.55-1002-06

1 Pressure plate

2 Spacer rings

3 Retaining ring

4 Belt pulley

5 Retaining ring

6 Solenoid

7 A/C compressor shaft

8 Electrical line

9 Bracket

10 AC compressor

11 Locking pin

12 Cutout

Modification notes

6.12.10

Puller special tool added.

Operation steps 2, 13, 14,

*000589000500

	Removing
1	Remove A/C compressor (10)		AR83.55-W-5300B
2	Remove pressure plate (1)	 Counterhold pressure plate (1) with puller (20). If the pressure plate (1) is stuck in place, use the shop-made bolt to detach the pressure plate (1).
		 Pronged wrench	*000589000500
	Screw/bolt for removing pressure plate		WF58.50-N-8355-02A
3	Remove retaining ring (3) of belt pulley (4) at A/C compressor shaft (7)
4	Remove belt pulley (4)
5	Remove bracket (9) at refrigerant compressor (10)
6	Remove retaining ring (5) of solenoid (6) at refrigerant compressor shaft (7)
7	Remove solenoid (6)
	Install
8	Install solenoid (6)	 The contact surfaces of the solenoid (6) and of the refrigerant compressor shaft (7) must be free of grease and dust.
		The locking pin (11) at the solenoid (6) must engage in the cutout (12) at the refrigerant compressor (10) (arrows).
9	Fit circlip (5) of solenoid (6)	 Use new retaining ring (5). The flat side (arrow) of the retaining ring (5) must point toward the refrigerant compressor (10).
		The circlip (5) must latch completely into place to prevent any play on the solenoid (6).
10	Fasten both electrical lines (8) with bracket (9) at refrigerant compressor (10)
11	Install belt pulley (4)
12	Fit circlip (3) of belt pulley (4)	 Use new retaining ring (3). The flat side (arrow) of the retaining ring (3) must point toward the refrigerant compressor (10).
13	Install pressure plate (1).	 Counterhold pressure plate (1) with puller (20).
			*BA83.55-N-1004-01C
		 Pronged wrench	*000589000500
14	Check axial play of pressure plate (1)	 Only when replacing the electromagnetic clutch.	AR83.55-W-7682-01A
			*BE83.55-N-1001-01B
			*BA83.55-N-1004-01C
		 Dial indicator	*001589532100
		 Gage stand	*363589022100
		 Pronged wrench	*000589000500
	Adapter cable for electromagnetic clutch at compressor		WF58.50-N-4781-01A
	Screw/bolt for removing pressure plate		WF58.50-N-8355-02A
15	Install A/C compressor (10)		AR83.55-W-5300B

Test and adjustment values for refrigerant compressor

Number	Designation		Model 374, 375, 940, 942, 943, 944, 949, 950, 952, 953, 954, 957, 958, 970, 972, 974, 975, 976, 930, 932, 933, 934


BE83.55-N-1001-01B	Axial play of pressure plate	mm	0.5 (0.15)

 Refrigerant compressor

Number	Designation		Model 930, 932, 933, 934, 950.0, 950.1, 950.2, 950.3, 952.0, 952.1, 952.2, 952.3, 953.1, 953.3, 954.0, 954.1, 954.2


BA83.55-N-1004-01C	Screw/bolt, pressure plate to compressor shaft	Nm	20

001 589 53 21 00

Dial indicator holder

Dial indicator

Puller

000 589 00 05 00

363 589 02 21 00

Referenced documents

ar8355w5300b Remove/install refrigerant compressor
ar8355w768201a Check and adjust electromagnetic clutch axial play
wf5850n478101a Adapter cable for electromagnetic clutch at compressor
wf5850n835502a Screw/bolt for removing pressure plate