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Model G0828/G0829 (Mfd. Since 02/17)
Adjusting Blade Gap
The gap between the upper and lower blades (as
they pass each other) must remain even along
the length of the blades to produce clean cuts.
Initially, this adjustment has been made at the
factory. However, over time and with normal wear,
you may need to re-adjust the blade gap.
If the blade gap is too wide, the workpiece will
not cut correctly and show signs of bending, rip-
ping, or tearing. If the blade gap is too narrow, the
upper blade will have difficulty lowering past the
lower blade and the cutting edges may become
damaged.
Checking Blade Gap
Use the shear to cut a piece of paper along the
full length of the blades. All cuts should be sharp
without bending or tearing the paper.
—If the blades do not cut the paper cleanly on
one end of the shear, the upper blade needs to
be adjusted on that end.
—If the blades do not cut the paper cleanly
along the entire length of the blades,
both ends of the upper blade need to be
adjusted.
Adjusting Upper Blade
The blade gap is controlled by four set screws and
hex nuts on the front and rear of each side of the
upper blade base (see
Figure 31).
Tools Needed
Qty
Open-End Wrench 14mm .................................. 1
Hex Wrench 4mm .............................................. 1
Feeler Gauge 0.002" ......................................... 1
To adjust upper blade:
1. Remove blade guard.
2. Loosen hex nuts on set screws identified for
adjustment in
Checking Blade Gap (see
Figure 32).
If the paper does not cut cleanly after proper
adjustment of the upper blade, the blades may
need to be sharpened or replaced (refer to
Replacing Blades on Page 25).
3. Use feeler gauge to adjust blade gap to
0.002":
— To move blade toward front, rotate rear
set screws clockwise and front set screws
counterclockwise.
— To move blade toward back, rotate rear
set screws counterclockwise and front set
screws clockwise.
4. Repeat previous Checking Blade Gap pro-
cedure to test adjustments.
— If blade gap is correct, hold each set screw
in position and tighten its hex nut.
— If blade gap is not correct, repeat
Steps
2–4 until cut is even.
5. Re-install blade guard when complete.
Figure 31. Upper blade adjustment set screws
(4 of 16 shown) on the G0828 and G0829.
Blade
Adjustment
Set Screws
(left rear)
Figure 32. Adjusting set screws to align upper
blade with lower blade.
Upper Blade
Set Screw
Hex Nut
Содержание G0828
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