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11.1.3.2. Air conditioning
1. Instructions for operating Air conditioning
operation
Air conditioning is optional equipment. On new air
conditioning systems freon has been replaced with
refrigerant (R134a) which does not cause
environmental hazard.
IMPORTANT: If the air conditioning
system has not been used for some
time, unlock the compressor before
starting the engine, by rotating the
pulley nut with a wrench.
NOTE: When the air conditioning system is in use
the cab doors and windows must be closed.
Ensure the cab upper air filter is clean:
1. First turn the knob (1) towards to cold. When the
engine is running, turn the air conditioning
temperature regulating knob (2) towards cold (fully
clockwise).
2. Move the fan switch (3) to the position 4.
3. When the desired cab temperature has been
reached, adjust the air conditioning temperature
regulating knob (2) to maintain a comfortable
temperature.
4. Reduce the fan (3) speed to obtain a comfortable
temperature.
NOTE: The efficiency of the air conditioning can be
increased by keeping the recirculation control knob
(4) in position.
NOTE: Make sure that the compressor starts (at
low temperatures the thermostat prevents the
compressor from starting).
2. Maintenance
To prevent locking of the compressor, use the air
conditioning for a few minutes at least once a
month with the engine stop control in the off
position. Push the engine stop control knob in and
allow the engine to idle for a few minutes.
CAUTION: Do not attempt to
disassemble any part of the air
conditioning system.
Special safety equipment and tools are required to
repair the air conditioning system. Contact your
dealer if problems occur.
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