Hitachi ZW 310-6, Operator'S Manual

Page: 433 / 506

MAINTENANCE
7-119
L. Miscellaneous
Check Bucket Teeth and Cutting Edge
--- every 10 hours (daily)
Check bucket teeth for wear and looseness.
Replace
d
WARNING: Guard against injury from flying pieces of
metal.
Wear goggles or safety glasses, hard hat and face
shield.
Cutting Edge
1. Lift the bucket so its bottom is level. Lift the bucket to
an appropriate height and wedge a block under it so the
bucket will not come down. Stop the engine.
2. Loosen bolts (1) and nuts (2). Remove cutting edge (4).
3. Install new cutting edge (4). If the reverse side of a
cutting edge is not worn much, use it again with the face
reversed. If both sides are worn out, replace it with a new
one.
4. Tighten nuts (2).
Tightening torque
Cutting edge : 1068 N·m (107 kgf·m)
5. Retighten mounting nuts (2) after a few hours of
operation.
Bucket Teeth
1. Lift the bucket so its bottom is level. Lift the bucket to
an appropriate height and wedge a block under it so the
bucket will not come down. Stop the engine.
2. Insert a prybar into the locking part of the tooth, unlock
it and remove the point.
3. Remove the point of the tooth.
4. Mount a new point and lock it with the prybar.
5. After operating the machine for several hours, check and
make sure there are no problems with the mounting of
the point.
M4GB-07-116
Point
Lock
Unlock
prybar
MNEK-07-041
MNEK-07-046
MNEK-07-045
90Z7-7-95-2
4
1
2
2
1 4