Komatsu Galeo PC138US-8 Shop Manual page 441

30 Testing and adjusting
4. KOMTRAX communication module
1) Slide the operator's seat and seat stand to
the forward end.
PC138US, USLC-8
2) Connect troubleshooting T-adapters to con-
nectors CK01 and CK02 of KOMTRAX
communication module (13).
a Cable (14) is for the communication
antenna.
5. Engine Ne speed sensor (Crank sensor)
Engine Bkup speed sensor (Cam sensor)
Engine oil pressure switch (Oil pressure
switch)
a a a a Disconnection and connection of con-
nectors
The connectors of the engine Ne speed
s ens or, eng ine Bku p sp eed s ens or,
engine oil pressure switch have a special
locking mechanism. Disconnect them
according to steps (a) – (c) and connect
them according to steps (d) – (f) as shown
below.
Disconnection: (a) Slide lever – (b)
Unlock – (c) Disconnect connector.
Connection: (d) Connect connector – (e)
Lock – (f) Slide lever.
a a a a Removal and installation of sensor
A deep socket is necessary for removal
and installation of the engine oil pressure
switch. See "Tools for testing, adjusting,
and troubleshooting".
SEN02460-01
5