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Section B
3 - 4
Safety Procedures
The air conditioning system includes a pressurised closed
circuit containing a non-CFC, environmentally friendly
refrigerant, Type R-134a. Any service procedure which
breaks into the closed circuit and therefore requires
discharging of the system, must only be carried out by
service personnel with specialist knowledge of air
conditioning systems. The following guidelines should be
adhered to by all personnel servicing the air conditioning
system.
! WARNING
The air conditioning system is a closed loop system and
contains pressurised refrigerant. No part of the system
should be disconnected until the system has been
discharged by a refrigeration engineer. or a suitable
trained person You can be severely frostbitten or injured
by escaping refrigerant
4-3-4-1/2
! CAUTION
Do not operate the air conditioning system when there is
no refrigerant in the system, otherwise the compressor
will be damaged.
4-3-4-4
1
It is critical that the correct refrigerant (R-134a) is used
and that charging is done only by qualified personnel. It
is illegal to discharge the refrigerant into the
atmosphere but as a precaution in case of accidental
leakage, discharging and charging of the vehicle
refrigerant system must be conducted in a well
ventilated area.
2
Containers of refrigerant should be stored in a cool
environment away from direct sunlight.
! WARNING
Do not carry out welding operations close to the air
conditioning refrigerant circuit. A poisonous gas is
produced when refrigerant comes into contact with
naked flames. Do not smoke or allow naked flames close
to the refrigerant circuit.
BF 1- 9
3
Do Not perform welding operations close to refrigerant
hoses (maintain a distance of at least 0.5m from hoses).
4
Do Not steam clean refrigerant system components.
5
When charging or discharging the refrigerant system,
no smoking or naked flames should be allowed in the
immediate vicinity. The refrigerant does not give off a
poisonous odour, however, when it comes into contact
with a naked flame, a poisonous gas is produced.
6
When handling refrigerant, rubber gloves and goggles
should be worn. Operators should ensure no refrigerant
comes into contact with the skin. Particular care should
be taken when connecting or disconnecting charging
hoses or pressure switches. When these components
are connected to the system, a short release of
refrigerant occurs. This results in a high velocity, very
cold gas being emitted from the connection point.
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Body & Framework
Basic Operation
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7
When checking the state of the refrigerant at the
receiver drier sight glass, it is necessary to run the
engine with the side panel removed and the bonnet
raised. Extreme care must be taken to avoid moving
engine parts such as fans, pulleys and belts.
8
Use caution when working near exposed evaporator
fins. Painful cuts can be inflicted by the edges of the
fins. Also, damage to the fins will reduce the efficiency
of the system.
9
Make sure pressure cylinders are not over filled,
particularly when recovering refrigerant.
10
Disconnect battery before doing any work.
Section B
3 - 4
Issue 1
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