Komatsu 75001, Shop Manual

Page: 1271 / 1293

SEN03859-00
50-800
6
WA250, 250PZ-6
800 Electrical system
Removal and installation of KOMTRAX terminal assembly
Removal and installation of
KOMTRAX terminal assembly
1
Removal
k Stop the machine on a level ground and set
the lock bar to the frame to fix the front and
rear frames.
k Lower the work equipment to the ground,
stop the engine, apply the parking brake,
and put chocks under the tires.
k Disconnect the cable from the negative (–)
terminal of the battery.
1. Open the right door of the operator's cab.
a Lock the door securely.
2. Remove right armrest outside cover (1) of the
operator's seat.
3. Remove KOMTRAX terminal assembly (2).
4. Disconnect machine wiring harness connector
CN-L80 (3) from KOMTRAX terminal assembly
(2).
a Disconnect the machine wiring harness
first and then disconnect the antenna
cables (If the antenna cables are discon-
nected first, an antenna cable disconnec-
tion error is saved in the KOMTRAX). [*1]
a Remove CN-L80 (3) by loosening the
hexagon socket head screw at its center.
[*2]
5. Disconnect antenna cable connectors (4) and
(5) from KOMTRAX terminal assembly (2).
Installation
q
Carry out installation in the reverse order to
removal.
a Before installing, remove foreign materials
(dirt, water, etc.) from the wiring harness con-
nector of the KOMTRAX terminal assembly.
[*1]
a Connect the antenna cable connectors first
and then connect the machine wiring harness
connector.
[*2]
3
Hexagon socket head screw at center of wir-
ing harness connector CN-L80 (3):
2.82 Nm {0.288 kgm}