Valtra 600, Operator'S Manual

Page: 127 / 142

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K. Extra equipment
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).
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.
2.
Maintenance
WARNING: 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.
69--- 116
The condenser must be cleaned at regular intervals to
remove dust, insects and other particle. Make cleaning
easier by moving the condenser sideways (as in picture).
WARNING: Avoid contact with the refrigerant. If
refrigerant enters the eyes a doctor should be
contacted without delay. Welding work should not be
carried out near to the air conditioning system as
poisonous gas may be released. The maximum
temperature permitted in the vicinity of the refrigerant
pipes is 80
û C.
If the air conditioning is not running properly, have an
authorized workshop check the system.
69--- 117
1
1
2
3
On the receiver ( 1 ) of the air conditioning system there is
a sight glass A and moisture eliminator/indicator ( B ).
Sight glass A (run the engine at 1500 rpm, air conditioner
at max. cooling for a few minutes):
No bubbles appear at all. EXCESSIVE
REFRIGERANT. The high---pressure side (
2 ) will
be abnormally hot. Contact an authorized
workshop.