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 tooth point (1), 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 (3) has no cracks.
Insert tooth point (1) slowly until tooth point (1) 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 adapter (2), tap
lock pin (3) into 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: • Since rubber is susceptible to corrosion, do not use
grease, oil and other oily materials when inserting lock
pin (3).
• When mounting welding-type nose and adapter (2)
onto the bucket, lock pin (3) should be removed from
the nose when preheating and welding. Otherwise,
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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