Komatsu PC130-7, Shop Manual

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20-206
PC130-7
TROUBLESHOOTING POINTS TO REMEMBER WHEN CARRYING OUT MAINTENANCE
(1)
2) Removing, installing, and drying connectors
and wiring harnesses
• Disconnecting connectors
1) Hold the connectors when disconnecting.
When disconnecting the connectors, hold
the connectors and not the wires. For con-
nectors held by a screw, loosen the screw
fully, then hold the male and female connec-
tors in each hand and pull apart. For con-
nectors which have a lock stopper, press
down the stopper with your thumb and pull
the connectors apart.
a
Never pull with one hand.
2) When removing from clips
When removing a connector from a clip, pull
the connector in a parallel direction to the
clip.
a
If the connector is twisted up and down
or to the left or right, the housing may
break.
3) Action to take after removing connectors
After removing any connector, cover it with a
vinyl bag to prevent any dust, dirt, oil, or
water from getting in the connector portion.
a
If the machine is left disassembled for a
long time, it is particularly easy for im-
proper contact to occur, so always cover
the connector.