Komatsu WA250-5 Service Manual

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MAINTENANCE
SERVICE PROCEDURE
CHECK ENGINE VALVE CLEARANCE, ADJUST
As special tool is required for removing and adjusting the parts, request your Komatsu distributor for service.
CHECK BRAKE DISC WEAR
When
checking
the
brake
disc
wear,
apply
the
parking
brake
and
secure
the
front
and
rear
frames
with
the
safety
bar.
Make
sure
that
the
brake
oil
temperature
is
less
than
60
°
C
(140
°
F)
before
checking
the
brake
wear.
If
the
disc
is
near
the
wear
limit,
carry
out
inspection
at
shorter
intervals,
regardless
of
the
specified
inspection
interval.
When checking the brake disc for wear, there are 4 places (front
axle and rear axle, left and right), so use the same procedure to
check all 4 places.
Prepare an inspection gauge.
1.
Remove check plug (1).
2. With the brake pedal depressed, insert inspection gauge (2)
into the tooth portion of piston (3) and plate (4).
3.
If the inspection gauge can be inserted into the tooth portion,
the disc has reached the wear limit.
Please ask your Komatsu distributor to carry out the
replacement.
4. After checking, install check plug (1).
Tightening torque: 127 to 177 N·m (13 to 18 kgf·m, 94.0 to
130.2 lbft)
CLEAN AND CHECK TURBOCHARGER
If there is carbon or oil sludge stuck to the blower impeller, it will lower the performance of the turbocharger or cause
it to break, so ask your Komatsu distributor to carry out the cleaning.
CHECK ACCUMULATOR GAS PRESSURE
When carrying out the EVERY 2000 HOURS SERVICE or EVERY YEAR SERVICE or when making periodic
replacement of the critical safety parts, please ask your Komatsu distributor to check the accumulator gas pressure.
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Komatsu WA250-5 Specifications

General

Brand	Komatsu
Model	WA250-5
Category	Front End Loaders
Language	English