OPERATION:
Rotate the handle and check - (1) The sequence of
the blade set matches that of the setting action. (this usually remains constant for any
one brand of blade)
(2) The blade does not "cock" and ensure sits
down in it's supports.
(3) The rotation of the handle is correct (picker must
be returning while yoke is setting.)
When satisfied with the index operation, locate the
blade join and place it next to the setting yoke. The blade can be freely moved between
the clamp by rotating the handle to release the clamp. Rotate the handle to index the next
tooth and adjust in it's cone point setting screw (using the 3mm hexagonal key supplied)
to just contact the tooth. Rotate the handle for the next tooth and repeat the adjustment
for the other side.
Fine adjustment of the setting screws can now be
performed while checking the amount of set being applied with the setting gauge supplied
(fig3). The gauge consists of a square metal sheet with two "steps” machined
into each corner. Select the required set on the gauge and while holding the flat edge
across the width of the blade, try to touch the set tooth with the appropriate step.
Should the step not touch, more set will need to be applied.
The settings will remain constant for any similar blade
gauge and tooth form. It is preferable to apply a minimum of set and go around the blade
more than once than to apply maximum set in the one pass.
Should excess set need to be removed from an entire
blade, adjust the feed cam timing for the opposite sequence by moving the feed cam timing
180 degrees and rotate the handle in the other direction. The setting screws will have to
be readjusted to prevent over setting in the other direction. If only several teeth have
had excess set applied, it is often quicker to take it off just these teeth with the
careful use of a pair of pliers.
The feed picker always presents the teeth to the same
position regardless of tooth pitch. The maximum movement for the return of the picker is
adjusted with screw stop (36). This should be set to allow the picker to return about half
way into the next tooth. Ensure that it cannot span two teeth. Blades may be joined with a
tooth pitch (number) not divisible by 3. In such cases blades need to be readjusted to the
correct sequence when the setter again reaches the join.
