Komatsu Galeo PC138US-8 Shop Manual page 443

30 Testing and adjusting
a a a a Precautions for connecting connector
Take care not to connect the connector
reversely.
Engage lock (e) on the wiring harness side
with triangular notch (f) on the sensor side
(Do not engage lock (e) with square guide
(g) on the opposite side of triangular notch
(f)).
8. Common rail pressure sensor (Fuel rail
press)
a a a a Disconnection and connection of con-
nector
The connector of the common rail pres-
sure sensor has a special locking mecha-
nism. Disconnect it according to steps (a)
– (b) and connect it according to steps (c)
– (d) as shown below.
Disconnection: (a) Unlock – (b) Discon-
nect connector.
Connection: (c) Connect connector – (d)
Lock.
PC138US, USLC-8
9. Engine coolant temperature sensor (Cool-
ant temp)
a a a a Disconnection and connection of con-
nector
The connector of the engine coolant tem-
perature sensor has a special locking
mechanism. Disconnect it according to
steps (a) – (b) and connect it according to
steps (c) – (d) as shown below.
Disconnection: (a) Unlock – (b) Discon-
nect connector.
Connection: (c) Connect connector – (d)
Lock.
a a a a Removal and installation of sensor
A deep socket is necessary for removal
and installation of the engine coolant tem-
perature sensor. See "Tools for testing,
adjusting, and troubleshooting".
SEN02460-01
7