Komatsu PC200-8M0 Shop Manual page 44

SEN06112-00
Precautions for troubleshooting electrical cir-
cuits
Be sure to turn the starting switch to the "OFF"
q
position before disconnecting or connecting
the connectors.
q Before performing troubleshooting, check all
the related connectors for loose connection.
a Check the related connectors for their per-
formance by disconnecting and connect-
ing them several times.
q Be sure to connect all the disconnected con-
nectors before proceeding to the next step.
a If the starting switch is turned to the "ON"
position with the connectors disconnected,
the failure which is not related to the part
which is actually failed.
When performing the troubleshooting for the
q
c i rc u i t (m e as ur e me nt of v ol ta ge , r es i s -
tance,continuity, current, etc.), shake the
related wiring harnesses and connectors sev-
eral times and check that the multimeter read-
ing does not change.
a If there is any value change on the multim-
eter, there may be a defective contact in
the circuit.
28
00-200
200 Foreword and general information
Handling of electrical equipment
PC200, 200LC, 220, 220LC-8M0