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Komatsu PC490LC-10 Shop Manual page 31

Hydraulic excavator
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FOREWORD
4.
Connecting connectors
A. Check the connector visually.
Check that there is no oil, dirt, or water stuck to the
connector pins (mating portion). Check that there is no
deformation, defective contact, corrosion, or damage to
the connector pins. Check that there is no damage or
breakage to the outside of the connector.
If there is any oil, water, or dirt stuck to the connector,
wipe it off with a dry cloth. If any water has got inside the
connector, warm the inside of the wiring with a dryer, but
be careful not to make it too hot as this will cause short
circuits.
If there is any damage or breakage, replace the connector.
B. Fix the connector securely.
Align the position of the connector correctly, and then
insert it securely. For connectors with lock stopper, push in
the connector until the stopper clicks into position.
C. Correct any protrusion of the boot and any misalignment of the
wiring harness.
For connectors fitted with boots, correct any protrusion of
the boot. In addition, if the wiring harness is misaligned,
or the clamp is out of position, adjust it to its correct
position.
★ If the connector cannot be corrected easily, remove
the clamp and adjust the position.
★ If the connector clamp has been removed, be sure to
return it to its original position. Check also that there
are no loose clamps.
D. Connecting DT connectors
Since the DT 8-pin and 12-pin heavy duty wire connectors
have 2 latches respectively, push them in until they click 2
times.
1.
Male connector
2.
Female connector
★ Normal locking state (Horizontal):a, b, d
★ Incomplete locking state (Diagonal):c
PC490LC-10
HANDLING ELECTRIC EQUIPMENT AND HYDRAULIC COMPONENTS
00-17 b

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