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4.
With assistant at rear of machine to support
blade, remove hex nuts and flat washers
loosened in Step 3, then have assistant pull
blade off frame (see Figure 63).
5.
Installation is reverse of removal.
IMPORTANT: Align keyed flat head cap
screws with slots in blade before tightening
fasteners. Check blade gap after installing
blade (see Page 38).
Note: Clean mounting surface and blade with
mineral spirits before re-installing blade.
Adjusting Gibs
There are four copper plates on each side of the
upper blade frame that ride between the blade
guide and upper blade frame—two front, two rear
(see Figure 64). They are made of copper so the
plates wear instead of the frame. The rear cop-
per plates act as gibs that apply pressure to keep
movement of the upper blade tight and precise
within the blade guide.
Upper Blade Frame
Rear
Copper
Plate
Blade
Guide
Figure 64. Gib adjustment controls (right side).
Model G0845P (Mfd. Since 01/18)
If the gibs are too loose, the quality of the cuts
will suffer because the movement will be sloppy
when the shear is engaged. If the gibs are too
tight, it will be difficult to lower the upper blade,
and the cutting edges of the blades may become
damaged.
The goal of adjusting the gibs is to keep the front-
to-back movement of the upper blade frame snug
without interfering with the sliding action.
Items Needed
Open-End Wrench 19mm .................................. 1
Hex Wrench 6mm .............................................. 1
To adjust gibs:
1.
2.
3.
4.
ON
OFF
5.
Gib
Adjustment
Set Screws
DISCONNECT MACHINE FROM POWER!
Loosen (6) hex nuts on gib adjustment set
screws (see Figure 64).
Tighten all (6) gib adjustment set screws
evenly until gibs are snug against copper slid-
ing plates, then back off gib adjustment set
screws
⁄
turn.
1
8
Make test cut to check sliding action and
quality of cut. If necessary, turn gib adjust-
ment set screws clockwise to tighten gib or
counterclockwise to loosen gib, then repeat
test and adjust as necessary until you are
satisfied with gib adjustment.
Hold set screw in position and tighten hex nut
to secure gib adjustment.
Qty
-43-
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