Remove/install AC pipe assembly

AR83.30-S-7800A

Remove/install AC pipe assembly

28.9.10

2.5.00

Value changed from 35 Nm to 33 Nm

Value in BA83.30-N-1006-01A changed for model 638

*BA83.30-N-1006-01A

 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



All sealing rings must be replaced and wetted using compressor oil.



When working on the refrigerant circuit seal all openings using suitable covers to prevent any unnecessary ingress of air humidity.

 

Remove/install

1

Remove front grille

AR88.00-S-2115A

2

Remove front end cross member

AR88.20-S-2000A

3

Discharge air conditioning system

 Installation: Refill air conditioning and check for proper operation and leaktightness.

AR83.30-S-1760A

4

Remove radiator

With engine 111

AR20.20-S-3865A

With engine 601

AR20.20-S-3865B

5

Remove condenser

AR83.30-S-6540A

6

Unscrew nut (5), remove retaining panel of intake line (6) and high pressure line (4) from expansion valve



*BA83.30-N-1003-01A

7

Remove bolt (7) on bracket for fluid reservoir (11)

8

Detach refrigerant line (8) on fluid reservoir (11) and remove



*BA83.30-N-1002-01A

9

Detach refrigerant line (6) from fluid reservoir (11) and remove


 Cut cable ties
Installation: Fasten refrigerant lines in place using cable ties

*BA83.30-N-1002-01A

10

Remove bolt (10), remove the clamp (9)

11

Remove refrigerant line (14) from refrigerant line (4)



*BA83.30-N-1006-01A

12

Remove bolt (12) and remove refrigerant line (4)



*BA83.55-N-1002-01A

13

Remove bolt (13) and remove refrigerant line (14)



*BA83.55-N-1001-01A

14

Install in the reverse order

 Observe oil refill quantity when replacing refrigerant lines

*BF83.30-N-1006-01A

in event of line break

*BF83.30-N-1008-01A

15

Replace fluid reservoir

AR83.30-S-6520A

Number

Designation

Model
638

BA83.30-N-1001-01A

Nut, suction and high pressure line to expansion valve

Nm

10

BA83.30-N-1002-01A

Expansion valve bolt

Nm

8

BA83.30-N-1003-01A

High pressure lines to fluid reservoir

Nm

17

BA83.30-N-1005-01A

High pressure line from condenser/fluid reservoir

Nm

17

BA83.30-N-1006-01A

AC compressor/condenser high pressure line bolted connection

Nm

33

Number

Designation

Model
638 with engines 104, 111, 601

BA83.55-N-1001-01A

Bolt, refrigerant compressor

Nm

23

BA83.55-N-1002-01A

Bolt of suction and high pressure line to refrigerant compressor

Nm

23

Number

Designation

Model
638 with compressor 10PA17C

BF83.30-N-1006-01A

Refill quantity of compressor oil when replacing a coolant line

cm3

10

Specifications for
Operating Fluids

Sheet

BB00.40-P-0362-00A

BF83.30-N-1008-01A

Compressor oil refill quantity when air conditioning system is suddenly evacuated (line break)

cm3

40

Specifications for
Operating Fluids

Sheet

BB00.40-P-0362-00A