Removal And Installation Of Floor Frame Assembly - Komatsu PC200-8M0 Shop Manual

SEN06148-01
Removal and installation of floor
frame 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. Turn the upper structure by 90
2. Drain the engine coolant.
6
Coolant : 20.3 l (PC200/200LC-8M0)
19.8 l (PC220/220LC-8M0)
3. Remove the operator's cab assembly by refer-
ring to "Removal and installation of operator's
cab assembly".
4. Remove cover (1).
22
50-700
conditioner refrigerant
°
.
700 Cab and its attachments

Removal and installation of floor frame assembly

5. Disconnect ground (2).
6. Disconnect connectors (4a) to (7b) from travel
PPC valve (3).
q Connector (4a): L.H. travel reverse oil
pressure sensor (P10)
Connector (4b): L.H. travel forward oil
q
pressure sensor (P09)
q Connector (5a): R.H. travel forward oil
pressure sensor (P11)
Connector (5b): R.H. travel reverse oil
q
pressure sensor (P12)
7. Disconnect hoses (11) to (14) from travel PPC
valve (6).
a The hose bands are colored as follows:
q Hose (6a): Red (L.H. travel forward
port (P2))
q Hose (6b): Without band (L.H. travel
reverse port (P1))
Hose (7a): Blue (R.H. travel reverse
q
port (P3))
q Hose (7b): Green (R.H. travel forward
port (P4))
PC200, 200LC, 220, 220LC-8M0