Komatsu ecot3 PC300LC-8 Shop Manual page 469

30 Testing and adjusting
7) Connect troubleshooting T-adapters to con-
nectors CK01 and CK02 of KOMTRAX
communication module (13).
a Cable (14) is for the communication
antenna.
5. Atmospheric pressure sensor (AMBAIR
PRESSURE)
Engine Ne speed sensor (CRANK SENSOR)
Engine Bkup speed sensor (CAM SENSOR)
Engine oil pressure switch (OIL PRESSURE
SWITCH)
a Disconnection and connection of con-
nectors
The connectors of the atmospheric pres-
sure sensor, engine Ne speed sensor,
engine Bkup speed sensor, 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.
PC300, 350-8
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".
6. Boost pressure and temperature sensor
(BOOST PRESS & IMT)
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 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".
SEN02663-02
5