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MAINTENANCE
MAINTENANCE PROCEDURE
ADJUST BUCKET CLEARANCE
WARNING
It is dangerous if the work equipment moves by mistake while the bucket
clearance is being adjusted.
Set the work equipment on the ground in a stable condition, then stop the
engine and lock the lock lever without fail.
1. Set the work equipment to the position shown in the diagram
on the right, then stop the engine and set the lock lever to the
LOCK position.
2. Shift O-ring (1) of the linkage and measure the amount of
clearance "a".
Measurement is easier of you move the bucket to one side
(right side of the diagram) or the other so all the clearance can
be measured in one place.
Use a gap (clearance) gauge for easy and accurate
measurement.
3. Loosen 4 plate mounting bolts (2), and loosen plate (3).
The shim is a split type, so the operation can be carried out
without removing the bolts.
4. Remove as many shims (4) corresponding to clearance
amount "a". A pair of shims composes one set and the
thickness of each shim is 0.5 mm (0.020 in). In case clearance
amount "a" is smaller than a shim, do not attempt to tighten bolt
(2) for the adjustment purpose.
5. Tighten the four bolts (2).
If the bolts (2) are too stiff to tighten, pull out pin stopper bolt (5)
for easier tightening.
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Содержание PC78MR-6
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Страница 20: ... SAFETY SAFETY LABELS LOCATION OF SAFETY LABELS 2 5 ...
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Страница 295: ... PC78MR 6 GALEO HYDRAULIC EXCAVATOR Form No TEN00074 00 2005 KOMATSU All Right Reserved Printed in Japan 04 05 ...