Hitachi 090001, Operator'S Manual

Page: 364 / 442

MAINTENANCE
7-90
3. Removing the tooth point
Turn tooth point (1) to the left, twist and pull it toward
you to remove it.
IMPORTANT: Check if lock pin (3) has cracks. If it has,
replace the rubber with new one. While the pin and
plug can withstand several replacements of the tooth
point, be sure to check whether they are usable or not
when replacing tooth point (1).
Mounting the tooth point
1. Mounting the tooth point
Clean the top end of the adapter nose.
Also check that lock pin (3) has no cracks.
If pebbles, dirt, etc., are stuck to the adapter nose, tooth
point (1) will not insert properly and the pin cannot be
driven in.
Insert tooth point (1) slowly until the tooth point comes
to the end of the adapter nose while twisting and
turning it to the right.
2. Inserting the pin
Insert lock pin (3) with take-up facing toward the adapter
nose.
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).)
(i.e. until the take-up on lock pin (3) fits into the grooves
of tooth point (1).)
Take-up
1
3
1
1
M173-07-001
M116-07-128
M113-07-078
M113-07-080