Removal And Installation Of Engine Controller Assembly - Komatsu PC210-8 Shop Manual

50 Disassembly and assembly
Removal and installation of
engine controller assembly
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.
1. Turn the upper structure by 90 degrees.
2. Remove cover (1).
3. Open the engine hood.
4. Disconnect connectors CE02 (2) and (3) from
the engine controller.
a The connector is locked with the inside
hex head bolt L6 (4 mm).
5. Disconnect connector (4) from the engine con-
troller by pushing the lock.
6. Remove the mounting bolt and engine control-
ler (5).
a Ground (E) and harness clamp are tight-
ened together with.
PC210, 230, 240-8
Installation
Carry out installation in the reverse order to re-
q
moval
a Reference
How to replace the seal of O ring of power
q
source connector (4).
Seal of O ring:
1010-074-0406 (NIHON-DEUTSCH Ltd.)
1) Remove cover (6) by nipping the tab with
tweezers [1].
UEN00666-01
9