Removal And Installation Of Air Conditioner Unit Assembly - Komatsu Galeo PC800-8 Shop Manual

SEN01060-01
Electrical system
Removal and installation of air
conditioner unit assembly
Removal
k
Disconnect the cable from the negative (–)
terminal of the battery.
k
In the case that you do not drain the cool-
ant, if you disconnect the heater hose when
the coolant temperature in the radiator is
high, you may be scalded. In this case, wait
until the coolant temperature lowers and
then disconnect the heater hose.
k
Collect the air
(R134a) from air conditioner circuit in
advance.
a Ask professional traders for collecting and fill-
ing operation of refrigerant (R134a).
a Never release the refrigerant (R134a) to the
atmosphere.
k
If refrigerant gas (R134a) gets in your eyes,
you may lose your sight. Accordingly, put
on protective goggles while you are collect-
ing the refrigerant (R134a) or filling the air
conditioner circuit with the refrigerant
(R134a). Collecting and filling work must be
conducted by a qualified person.
1. Swing the upper structure by 90°.
2. Drain the coolant.
6
Coolant: Approx. 100 l
3. Remove rear covers (1), (2), (3), and (4).
4. Remove duct (5), cover (6), and plate (7).
5. Remove plate (8) and duct (9).
a Remove the duct lock clip.
2
conditioner refrigerant
6. Remove ducts (10) and (11).
1
7. Disconnect connectors D01 (12), D02 (13),
S30 (14), R09 (15), R18 (16), R08 (16-1), R10
(16-2), and K01 (17).
8. Remove and sling controller (18).
9. Remove plate (19).
10. Disconnect air conditioner unit connectors M27
(20) and M33 (21).
11. Remove the air conditioner unit undercover.
a Part (A)
50 Disassembly and assembly
PC800, 850-8
1