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Komatsu PC390LL-10 Shop Manual page 15

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FOREWORD
3.
Removing, installing, and drying connectors and wiring
harnesses
A. Disconnecting connectors.
Hold the connectors when disconnecting.
When disconnecting the connectors, hold the connectors.
For connectors held by a screw, completely loosen the
screw, then hold the male and female connectors in each
hand and pull apart. For connectors which have a lock
stopper, press the stopper down with your thumb and pull
the connectors apart.
★ Never pull with one hand.
B. When removing from clips
Both of the connector and clip have stoppers, which are
engaged with each other when the connector is installed.
When removing a connector from a clip, pull connector in
a parallel direction to the clip for removing stoppers.
★ If the connector is twisted up and down or to the left
or right, the housing may break.
C. 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 entering into the
connector portion.
★ If the machine is left disassembled for a long time, it is
particularly easy for improper contact to occur, so always
cover the connector.
PC390LL-10
HANDLING ELECTRIC EQUIPMENT AND HYDRAULIC COMPONENTS
00-15

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A50601