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Adjusting blade bow
Tools Required
open-end Wrench 24mm ...................................1
the blade bow of the moving blade is adjusted
by loosening or tightening the bow bolt at the
center of the straightening rod (see Figure 27.)
observe the change in the gap when the moving
blade is just below the top of the fixed blade. For
optimum performance, the gap must be consis-
tent across the entire length of the blades. After
making adjustments to the bow, repeat the blade
Adjustment section. perform a paper shear test
to check the blade bow performance.
—if the shear cuts paper on the ends but not
the center, turn the bow bolt clockwise until
paper can be easily cut across the length.
—if the shear cuts paper at the center but
not the ends, turn the bow bolt counter-
clockwise until the paper can be easily cut
across the length.
Figure 26. example of a paper shear test.
Bow Bolt
Figure 27. Adjusting bow bolt.
-22-
gib Adjustment
Qty.
Tools Required
hex Wrench 8mm ...............................................1
open-end Wrench 14mm ...................................2
When adjusting gibs, keep in mind that the goal
of gib adjustment is to remove unnecessary slide
movement without causing them to bind. loose
gibs may allow play in the moving blade resulting
in poor cuts on the workpiece and undue wear on
the slide. over-tightening will make lowering the
foot pedal difficult.
loosen the jam hex nuts, tighten each gib screw
until it is just snug, then loosen it
tighten the jam nuts against the machine base to
secure the gib screw setting
Figure 28. gib screw location.
Qty.
⁄
of a turn.
1
8
Jam nut
gib Screw
t23036 37" Foot Shear
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