VW Golf manuals

Volkswagen Golf Service & Repair Manual: Safety precautions for when working on vehicles with air conditioning and when handling refrigerant R134a

Volkswagen Golf Service & Repair Manual / Air conditioning system with refrigerant R134a / General notes on air conditioning systems / General safety / Safety precautions for when working on vehicles with air conditioning and when handling refrigerant R134a

Air conditioning service station -VAS 6007A- (and further service stations currently available)
→ Workshop equipment
  WARNING
It is recommended that a bottle containing water be kept at hand for purging out the eyes.
Should liquid refrigerant get into the eyes, thoroughly purge the eyes with water for about 15 minutes. Then administer eye drops and visit a doctor immediately even if the eyes do not hurt.
The doctor must be informed that the frostbite has been caused by refrigerant R134a. If, in spite of these safety measures, refrigerant comes into contact with other body parts, these areas must also be immediately purge with cold water for at least 15 minutes.
Work on the air conditioning system refrigerant circuit in well ventilated rooms only. Switch on exhaust gas fume extractor (if there is one).
Refrigerant must not be stored in low-lying rooms (e.g. cellars) or their stairways or window shafts.
Do not weld, braze or soft-solder any parts of the charged air conditioning system. This also applies to welding and soldering work on the vehicle when the danger exists that parts of the air conditioning system may heat up. During painting operations, temperatures of objects in the drying oven or in its pre-heating zone must not exceed 80°C.
Reason:
Heating causes great excess pressure to develop in the system, which can cause the pressure release valve of the system to open.
Precautions:
–  Use the air conditioner service station to evacuate the refrigerant circuit.
  Note
Damaged or leaking components of the air conditioning system must not be repaired by welding or soldering. They must always be renewed.
Refrigerant containers (e.g. charging cylinders of air conditioner service station) must never be subjected to excessive heat or exposed to direct sunlight.
Precautions:
–  Never charge a container completely with liquid refrigerant. Without sufficient expansion space (gas cushion), the container will burst should the temperature rise, with devastating consequences → Chapter.
Under no circumstances may refrigerant be charged into systems or vessels containing air.
Precautions:
–  Evacuate systems and containers before charging with refrigerant.
 

Safety precautions for when working on vehicles with air conditioning and when handling refrigerant R134a

Safety instructions for using extraction and charging equipment
Before connecting the charging system to the air conditioning system, make sure that all existing shut-off valves are closed. Before the ...

Basics for working on refrigerant circuit
Observe instructions specific to the workplace; → Volkswagen ServiceNet; Handbooks; Service handbook; Environmental protection. Refrigerant from air c ...

Other materials:

Assembly overview - rear window wiper system
1 -  Cap 2 -  Nut Specified torque: 12 Nm 3 -  Wiper arm with joint-free wiper Removing and installing → Chapter Adjusting park position → Ch ...

Conducting a road test before balancing wheels
If a customer brings a vehicle to the workshop complaining about “vibration”, a road test is essential prior to balancing the wheels. This will give you information about the nature of the vibration. ...

Changing bulbs in the tail light cluster in the tailgate
Fig. 237 In the tailgate: removing the cover Fig. 238 In the tailgate: removing the bulb holder First read and observe the introductory information and safety warnings The actions should only be carried out in the specified order: 1. Obser ...

© 2016-2020 Copyright www.vwgolf.org