CHAPTER 9
SHEAR ASSEMBLY
33
TOP SHEAR BLADE ADJUSTMENT
(Figure 19 & Figure 20 – Details B & C)
The Top Shear Blades are bolted to the Blade Adjustment Bar. This bar is bolted to the Top Blade
Holder, and can be moved from left to right to align the blades to the Die Holders.
1. Loosen the 7 “D” bolts in the slots at the top entry side of the shear so that the Blade
Adjustment Bar will move from side to side.
2. The point of the Top #1 Blade should always be inboard of the Female vertical leg of the
panel, and should not pierce the top horizontal leg of the profile. The rake or angle of the
blade should cut in a scissor action outward against the leg. The #2 Top Blade must be
adjusted simultaneously in the same manner for the Male leg. You should be able to find a
position that works for both Male and Female legs. Once the Blade Adjustment Bar is in the
correct location, tighten all “D” bolts.
3. Jog the panel out approximately 12” and make the first cut. Check the piece to make sure the
cut is acceptable. Carefully jog the material through the shear dies making sure the panel does
not get caught on the Male or Female exit dies. If the panel gets caught on the exit dies, fine
tune the adjustment of the dies to correct the problem following the procedures above.
MAINTENANCE
1. Clean and lubricate the Top Blades, Bottom Dies, and Male/ Female dies at least once a day
during normal use, or whenever cutting surfaces look dry. Proper lubrication is essential to
clean cuts, rust prevention and longevity.
Super Lube - Multi-Purpose Synthetic Dri Film Aerosol Lubricant with Syncolon (PTFE)
Catalog No. 11016
11 oz. Aerosol Can
Available from:
MSC Supply at 1-800-645-7270
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