Tension is done by rotation of alternator around its
To change the water pump belt, proceed as follows:
o compress the tensioner spring, place a threaded
the spring up and slacken V-belt for easy removal.
spring to return the idler to it’s correct tension.
Diesel engine - Compressor V-belt
ension is realized by moving idler pulley :
UPWARDS (Engine / Compressor)
Depending on unit an adjusting screw easiest the
displacement of the pulley along the idler.
To avoid damage to the earth’s ozone layer, use a
To service the filter-drier, expansion valve, quench
refrigerant into condenser coil and receiver as follows :
attach manifold gauges to
clockwise. Start unit and run in high speed cooling.
Place Run-stop switch in the STOP position when
refrigerant will be trapped between the compressor
suction service valve and the
p any part of the system, a sligh
parts may frost. Allow the part to warm to ambient
Store the refrigerant charge in an evacuated
container if the system must be opened between the
compressor discharge valve and receiver.
Whenever the system is opened, it must be evacuated
and dehydrated. (Refer to section 4.7).
a refrigerant recovery sys
the refrigerant recovery system.
If system was opened and repairs completed, leak
dure for finding leaks in a
only for locating large leaks.
If system is without refrigerant, charge system with
refrigerant to build up pressure between 2.1 to 3.5
and leak check all connections.
cylinder be connected to pressurize the system. Any
other gas or vapor will contaminate the system which
will require additional purging and evacuation of the
high side (discharge) of the system.
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