Komatsu Utility 97SF11205, Operation & Maintenance Manual

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269
BACKHOE TELESCOPIC ARM
CAUTION
•
If the adjusting dowels (9) protrude to the same extent on
the two sides, the operation described at point 6 can be
carried out either on the right or left side.
6 - Loosen the four lock nuts (10) and tighten the adjusting dow-
els (9) thoroughly, until taking up the slack completely. (Use a
27 mm spanner and a 8 mm hexagon spanner).
7 - Starting from the central positions, loosen the adjusting dow-
els (9) by 270° (3/4 turn) and lock them with the lock nuts
(10).
8 - Start the machine, extend and retract the telescopic arm
more than once to make sure that it slides correctly.
CAUTION
•
The wear limit allowed for the shoes is represented by the
minimum engagement of the adjusting dowels (9) in the
lock nuts; the shoes must be replaced when the heads of
the dowels (9) are 5 mm back with respect to the lock nuts
(10).
•
Do not take up the slack completely, to prevent the guides
from seizing.
RWA03600
9
10
RWA03850
10 9
270
°
Clearance = 0
10
RWA03950
9
Reducing clearance
RWA04050
Shoe to be changed
5 mm