Komatsu 80001 - Removal and Installation of Engine Controller Assembly

SEN04134-00 50 Disassembly and assembly
12 PC130-8
Removal and installation of
engine controller assembly 1
Removal
k Disconnect the negative (–) terminal of the
battery beforehand.
1. Open the engine hood.
2. Referring to "Removal and installation of air
compressor assembly," disconnect air condi-
tioner compressor (1).
a Do not disconnect the air conditioner
hoses from the air conditioner compres-
sor.
3. Remove wiring connectors CE01 (2), CE02 (3)
and CE03 (4). [*1]
4. Remove mounting bolts (5) and remove engine
controller (6).
Installation
q Carry out the installation in the reverse order of
removal.
[*1]
3 Screw: 3 ± 1 Nm {0.3 ± 0.1 kgm}
a
aa
a Reference
q How to replace the seal of O-ring of power
source connector (4).
Seal of O-ring:
1010-074-0406 (NIHON-DEUTSCH Ltd.)
or equivalent
1) Remove cover (7) by nipping the tab with twee-
zers [1].
2) Remove O-ring (7) with tweezers [1].