MAINTENANCE
7-71
c. Removing the tooth point
Turn tooth point (1) to the left, twist and pull it toward
you to remove it.
Remove the plug, and check if rubber has cracking; if it
has, replace the rubber with new one.
While the pin and plug can withstand several replace-
ments of the tooth point, be sure to check whether they
are usable or not when replacing tooth point (1).
(2) Mounting the tooth point
a. Mounting the tooth point
Clean the top end of the adapter nose. If pebbles, dirt,
etc., are stuck to the adapter nose, tooth point (1) will
not insert properly and the pin cannot be driven in.
Also check that lock pin has no cracks.
Insert tooth point (1) slowly until the tooth point comes
to the end of the adapter nose while twisting and turn-
ing it to the right.
b. Inserting the pin
(1) Insert lock pin (3) with take-up facing toward the adapt-
er nose.
(2) With tooth point (1) fully inserted onto the adapter, tap
lock pin (3) into the tooth point (1) with a hammer until
the top of lock pin (3) comes flat with the nose surface.
(i.e. until the take-up on lock pin (3) fits into the grooves
of tooth point (1).)
NOTE: (1) Since rubber is susceptible to corrosion, do not use
grease, oil and other oily materials when inserting
the lock pin.
(2) When mounting welding-type nose and adapter
onto the bucket, the lock pin should be removed
from the nose when preheating and welding. Oth-
erwise, the rubber will be spoiled.
M173-07-001
M116-07-128
M113-07-078
1
M113-07-080
1
3
Take-up
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