U20-3, U25-3 WSM Machine body (Service section)
II-S-17
c. Exchange of bucket teeth and
side cutters [JPN bucket version]
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Bucket Tooth Replacement
CAUTION
To avoid personal injury:
• Wear eye protection when changing the tooth points.
1. Position a screw driver or similar tool above the
lock pin and knock out the pin and rubber plug
with a hammer.
2. Remove the worn point from the adapter by
hitting it with a hammer.
3. Clean the adapter.
4. Mount a new point on the adapter.
(1) Rubber plug (3) Point
(2) Lock pin (4) Tooth adapter
5. Align the holes of the point and adapter and
knock in the rubber plug together with the lock
pin until the top surface of the pin is flush with
the top surface of the adapter. (It is
recommended to replace the rubber plug and
lock pin when replacing the point.)
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Replacing the side cutter
1. Using a box wrench and an adjustable wrench,
remove the side cutter lock bolts.
2. Fit new side cutters. Temporarily tighten the
bolts.
3. Make sure the side cutters are in close contact
with the bucket tip ends. Then tighten up the
bolts.
• Tighten the bolts to the torque of 260 to 304
Nm (26.5 to 31 kgf-m).
• If the side cutters are out of contact, or in
poor contact with the bucket tip ends, the
bolts may get loose.
Nut
Side
Lock bolt
Bucket tip end
Contact
cutter
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