Remove/install desiccant cartridge

AR83.30-S-6521F

Remove/install desiccant cartridge

20.02.2020

Model

447 with engine 780.701/702

Modification notes

19.02.2020

Method extended

Operation steps 1.2, 2, 4,

19.02.2020

Information added

Operation steps 3, 5

1

Desiccant cartridge

2

Refrigerant condenser

3

Screw

4

O-rings

Shown with engine 780.702

3

Screw

 Danger

Risk of fire due to ignition of R1234yf refrigerant on hot components. Risk of poisoning caused by inhaling overheated refrigerant vapors. Risk of injury to skin and eyes caused by contact with escaped R1234yf refrigerant and when working on pressurized parts. Risk of explosion due to formation of ignitable refrigerant/air mixtures

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 rooms. Carry out repair work on the air conditioning system circuit only after the system has been evacuated.

AS83.00-Z-0007-01A

 Warning

Risk of poisoning caused by inhaling overheated refrigerant vapors from an air conditioning system containing R134a. Risk of injury to skin and eyes caused by contact with liquid R134a refrigerant and when working on pressurized parts

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 rooms. Carry out repair work on the air conditioning system circuit only after the system has been evacuated.Model 447 with engine 780.701

AS83.00-Z-0006-01A

Topical note

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

AH83.30-N-0005-01A

Notes on handling refrigerant R1234yf

AH83.30-P-0003-02A

Notes on handling refrigerant R134a

Model 447 with engine 780.701

AH83.30-N-0003-01A

 

Remove/install

1.1

Empty refrigerant circuit.

Model 447 with engine 780.702

AR83.30-S-1760EF

1.2

Remove refrigerant condenser (2).

Model 447 with engine 780.701

AR83.30-S-0013F

2

Remove bottom engine compartment paneling.

Model 447 with engine 780.702

AR61.20-S-1105E

3

Remove bolt (3) .

 Model 447 with engine 780.702
To do so, use suitable tool to remove screw (3) from below.

 Bolt, receiver drier to refrigerant condenser

*BA83.30-N-1005-01FA

4

Lower vehicle.

Model 447 with engine 780.702

5

Remove receiver drier (1) from refrigerant condenser (2).



Compressor oils (specification 362.1)

BB00.40-P-0362-01A

 Plug openings.

 Installation: Ensure that receiver drier (1) is seated correctly on condenser (2). If the packaging is damaged or the stop plugs are missing, do not install the new receiver drier (1).
Replace O-rings (4) and coat with compressor oil.

 Assembly tool

*000589936300

 Record plug

*129589009100

6

Install in the reverse order.

 Air conditioning

Number

Designation

Model 447 with engine 780.701/702 with code HH9,
Model 447 with engine 780.702 with code HH4

BA83.30-N-1005-01FA

Bolt, receiver drier to refrigerant condenser

Nm

8