Hitachi Zaxis 850LC-3 Operator's Manual page 289

(d) Pull tooth point (1) to remove, turning it counterclock-
wise.
(e) Remove plug (5) from adapter nose (4). Inspect the
plug rubber part for cracks and replace with new one
if necessary.
IMPORTANT: As a general rule, the life of the locking pin
and plug can cover point replacement of
several times. However, be sure to inspect
them when replacing tooth points.
2. Installation
(a) Remove soil stuck on adapter nose (4) and clean nose
surface using a putty knife. Confirm that the plug hole
on adapter nose (4) is free from dust and dirt.
(b) Insert plug (5) into adapter nose (4). Maximum depth
of the plug face below nose face should be 4.8 mm
(0.2"), as shown in Fig. 1.
(c) Position the new tooth point over adapter nose (4)
slowly turning tooth point (1) clockwise.
MAINTENANCE
4
7-77
1
4
5
Max. 4.8 mm (0.2")
Fig. 1
1
M113-07-078
5
M142-07-106
5
M113-07-079
M113-07-080