Refrigerant compressor, remove/install

AR83.55-W-5310J

Refrigerant compressor, remove/install

19.10.2017

Model

963, 964 with engine 936.9

with code D6F (Air-conditioning system)

Model

963, 964 with engine 936.9

with code D6G (Automatic climate control)

Modification notes

20.09.2017

Check oil level in refrigerant compressor (6), added.

Operation step 12

AR83.55-W-5251A

1

Electrical connection (magnetic clutch)

2

Bolts

3

Screw

4

Refrigerant lines (high pressure/low pressure)

5

Screw

6

Refrigerant compressor

 Warning

Risk of injury caused by pinching or crushing when working on springs or spring bodies that are under tension

Use only approved tensioning devices; additionally screen off hazardous area if necessary. Check special tools for damage and proper operation (visual inspection). Wear protective gloves.

AS00.00-Z-0001-01A

 Warning

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

 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

Topical note

Notes on tilting the cab

AH60.80-N-0003-01A

Topical note

Procedure for a damaged or leaky air conditioning system

AH83.30-N-0004-01A

Topical note

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

AH83.30-N-0005-01A

Notes on handling refrigerant R134a

AH83.30-N-0003-01A

 

Remove/install

1

Switch off ignition

2

Drain air conditioning system

AR83.30-W-1760HA

3

Tilt cab

4

Remove soundproofing on frame at upper left

5

Slacken the poly-V-belt and remove from belt pulley of the refrigerant compressor (6)

AR13.22-W-3902-05MD

6

Remove cable tie from electrical connector (1)

7

Separate electrical connector of magnetic clutch (1)

8

Remove bolts (2) and remove retaining plates from refrigerant lines (4)

9

Remove screws (3)

10

Remove refrigerant lines (4) with holder from refrigerant compressor (6)

 Seal off connections of refrigerant lines (4).

11

Remove bolt (5) and remove refrigerant compressor (6)



Install

12

Correct oil level in refrigerant compressor (6)

Only if the refrigerant compressor (6) is replaced.

AR83.55-W-5251A

13

Install refrigerant compressor (6) and screw in bolt (5) several turns

 Do not tighten the bolt (5) yet.

14

Mount refrigerant lines (4) with holder onto refrigerant compressor (6)

 Replace sealing rings and moisten with compressor oil.

15

Screw in screws/bolts (3)

 Bolt, refrigerant compressor to alternator/refrigerant compressor carrier

*BA83.55-N-1001-02B

16

Tighten bolt (5)

 Bolt, refrigerant compressor to alternator/refrigerant compressor carrier

*BA83.55-N-1001-02B

17

Install retaining plates for refrigerant lines (4) and screw in bolts (2)

 Bolt, refrigerant line retaining plate to refrigerant compressor

*BA83.30-N-1004-01H

18

Plug in electrical connector (1) of magnetic clutch

19

Mount cable tie onto electrical connector (1)

20

Check poly-V belt for damage



Damage profiles for a poly-V belt

AP13.22-D-1351-01A

If damage is present.



Replace poly-V belt.

Model 963, 964 with code D6F (Air conditioning system) or code D6G (Automatic air conditioning)

AR13.21-W-2000MD

21

Place poly-V-belt onto belt pulley of refrigerant compressor (6) and tension

AR13.22-W-3902-05MD

Belt drive routing diagram

AR13.20-W-1000-01MD

22

Install soundproofing on frame above on the left

23

Lower cab

24

Evacuate air conditioning system, refill and check for leaks

AR83.30-W-1760HA

25

Switch on ignition

26

Check air conditioning for proper operation

 Air conditioning

Number

Designation

Model 963, 964

BA83.30-N-1004-01H

Bolt, refrigerant line retaining plate to refrigerant compressor

Nm

18

 Refrigerant compressor

Number

Designation

Model 963, 964 with engine 936.9

BA83.55-N-1001-02B

Bolt, refrigerant compressor to alternator/refrigerant compressor carrier

Nm

25