Komatsu Galeo PC138US-8 Shop Manual page 442

SEN02460-01
6. Boost pressure and temperature sensor
(Boost press & IMT)
a a a a Disconnection and connection of con-
nector
The connector of the boost pressure and
temperature 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 torque wrench is necessary for removal
and installation of the boost pressure and
temperature sensor. See "Tools for test-
ing, adjusting, and troubleshooting".
6
7. Supply pump IMV solenoid (Fuel regulator)
a a a a Disconnection and connection of con-
nector
The connector of the supply pump IMV
solenoid 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.
a a a a Precautions for disconnecting connector
The direction of the lock of the connector
varies with the tightened position of the
sensor and the lock may be in a direction
in which it is difficult to reset (on the under-
side or engine side).
In this case, pinch the lock in direction (a)
with bent-nose nippers [1] (commercially
available), and the lock is reset.
Since the lock clicks when it is reset, dis-
connect the connector after a click is heard.
30 Testing and adjusting
PC138US, USLC-8