Removal - Komatsu PC20R-8 Shop Manual

REMOVAL AND INSTALLATION
REMOVAL OF ENGINE-PUMP GROUP
Completely lower the working equipment until it is
resting on the ground and stop the engine.
Release all residual pressures from the circuits and
the tank. (For details, see «20. CONTROLS AND AD-
JUSTMENTS»).
Disconnect the negative terminal cable (±) from the
battery.
H Drain out the hydraulic oil.
Hydraulic oil: approx. 29
H Drain the engine coolant.
Engine coolant: approx. 4
1 - Remove the engine hood, the lateral counterweights,
the counterweight, the oil-cooler - radiator group. (For
details, see the single removal).
2 - Remove the expansion chamber (1).
3 - Disconnect the tubes (2) and remove the clip (3).
H Plug the tubes to prevent entry of impurities.
4 - Disconnect from the pumps the Load Sensing tube
(5) the delivery tube (4) and the suction tube (6) .
H Plug the tubes and the unions to prevent entry of
impurities.
5 - Disconnect the fuel filling (7).
6 - Disconnect the accelerator cable (16) and its sleeve.
7 - Disconnect the clips (9), the connector (10), the pre-
heating cable (11), the temperature sensor cables
(12), the oil pressure indicator (13) and the grounding
plait (14).
PC20R-8 PC27R-8
,
,
1
3
7
7
5
4
11
9
13 14
ENGINE-PUMP GROUP
2
RKPA2920
5
4
6
RKPA2861
4
6
RKPA2930
12
10
8
RKZA2940
30-27