Testing Fresh/Recirc Air Changeover - Komatsu PC200-8M0 Shop Manual

SEN06151-00
Testing FRESH/RECIRC air
changeover
k
Park the machine on a level surface, lower
the work equipment to the ground so that it is
stable, and stop the engine.
q FRESH/RECIRC air is selected by changing the
door (damper) angle in the air conditioner unit
with the servo motor. Check the opening and
closing operations of the door (damper) visually.
a The system does not have self-diagnosis func-
tion for FRESH/RECIRC air changeover servo
motor.
Testing
1. Open outside air filter cover (1) and remove
outside air filter (2).
2. Start the engine and turn the air conditioner
power "ON".
3. Operate the FRESH/RECIRC air selector switch
on the machine monitor.
4. Check the opening/closing
FRESH/RECIRC air changeover rear door (3)
through the fresh air inlet on the left side of the
cab.
5. After finishing the inspection, turn the starting
switch to the OFF position.
34
80-100
operation of
100 Air conditioner

Testing FRESH/RECIRC air changeover

PC200, 200LC, 220, 220LC-8M0