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The spindle is advanced by moving the lever (36) (Ref. to Fig. a).
The lever is fi tted with a release pawl (39) (Ref. to Fig. b).
which, when pressed, renders it independent of the hub
and hence the spindle;
The operator can therefore:
Easily change the angular position of the lever without
movement of the spindle.
Retrieve the stroke in phase of drilling
(Ref. to Fig. c).
4.1) Adjustment of the advance lever
The movement of the lever must never be loose, for adjust-
ment proceed to tighten it by loading the cup springs by
means of the associated self-locking nut, after removing
the protective cap.
self-locking nut
b) - With the release pawl (39) pressed, the lever is released
from its hub and can repeat the previous travel without
the spindle moving.
c) - With the hub released, moving the lever towards the
operator produces a corresponding advance of this
spindle.
a) - Moving the lever (36) towards the operator produces
a corresponding advance of the spindle.
39
4. SPINDLE ADVANCE LEVER
36