Removal And Installation Of Air Conditioner Unit Assembly - Komatsu PC210-8 Shop Manual

UEN00666-01
Electric components
Removal and installation of air
conditioner unit assembly
Special tools
Part number
799-703-1200 Service tool kit
Vacuum pump
799-703-1100
(100V)
Vacuum pump
X1 799-703-1111
(220V)
Vacuum pump
799-703-1121
(240V)
799-703-1401 Gas leak detector
Removal
k
For machine with disconnect switch:
Before starting work, turn the starting
switch to the OFF position, wait over one
minute, then switch off the battery discon-
nect switch and take out the disconnect
key.
For machine with no battery disconnect
switch:
Cut off power, wait for approx. one minute
after turning off the engine starting key
and then disconnect the negative (–) ter-
minal of the battery.
k
Collect the air conditioner gas (R134a).
k
If the air conditioner gas (R134a) gets
inside one's eyes, it may cause blindness.
Therefore, make sure to wear protective
glasses when collecting or filling the gas.
Collecting and filling work must be con-
ducted by a qualified person.
1. Turn the upper structure by 90 degrees.
2. Drain the engine cooling water.
6
Coolant: Approx. 21.4l
3. Remove front window (1).
4. Remove step plate (2).
5. Remove floor mat (3).
6. Remove cover (5) and (6).
2
Part name
t 1
t 1
t 1
t 1
t 1
50 Disassembly and assembly
7. Pull down opening and closing lever (8) of the
outside air filter cover.
8. Remove outside air-filter(9).
9. Remove rear cover (10) to (13).
PC210, 230, 240-8