This tutorial shows you how to adjust a shear
Table Shear Instruction Sheet
After removing the shear from the box, and before using, the shear’s squareness and blade alignment must be checked. Performing this inspection will ensure accurate cutting.
Verifying Squareness Adjustment
• Use a carpenter’s square to verify squareness. Place one side of the carpenter’s square against the scaled fence (#1). Place the other side of the square against the upper blade edge. If adjustment is required, loosen screws on scaled fence (#1).
. Adjust as required.
• The same process can be used to set the 3 in. calibration mark exactly 3 in. from the blade edge. Be sure screws are tightened when completing adjustments.
• Blades must be in alignment for the entire length of cut. To test for proper alignment, use the shear to cut a sheet of paper. The paper should cut uniformly from end to end without bending. If this does not occur, some blade adjustment is required. Refer to Gib Adjustment Page 4.
CAUTION: do not operate shear without the plastic safety guard in place. Bottom of plastic guard should always be 1/4 in.
above the base of shear while operating.
TABLE SHEAR INSTRUCTION SHEET
The Table Shear is provided with a Scaled Fence and an End Stop to facilitate cutting.
SCALED FENCE. This scale is used to measure the size of the material to be cut. When cutting, keep one side of the material flush with the scale.
NOTE: the scaled fence may be used in any one of three positions to distribute blade wear. Optional 1/2 in. to 4 in. templates are available to assist in end stop measurements. Templates are available.
• Hold the material to be cut FIRMLY DOWN to the table base, as well as FIRMLY AGAINST the scaled fence. When cutting, keep one side of the material flush with the fence.
END STOP This stop is used to cut multiple pieces of the same size.
• Adjustment – Loosen the end stop knob and adjust length of end stop rod using a ruler or template. See Above
• Cutting Procedure – Loosen the end stop knob (# 2) and adjust the End Stop rod to the position which will give you the cut size desired. Tighten the end stop knob in place. Remember to HOLD THE MATERIAL FIRMLY DOWN ON THE TABLE BASE AND AGAINST THE SCALE FENCE.
NOTE: Some shear assemblies may be equipped with one long set screw or two short set screws. NOTE: Do not loosen eccentric bolts (# 12) during this procedure.
There are two gibs. The front gib (square type) is located on the left side and secured with one or two set screws (Two per hole).,The second gib is located on the right side (round type) and also secured with two set screws. Gib set screws holes typically have two set screws on each side of the table shear.
Front Gib (Left Side)
1. Using a 1/8 in. Allen wrench, remove the outer .250 in. set screw and carefully set this aside. Do not lose. The inner set screw (.375 in.) can be adjusted. Do not remove.
CAUTION: Do not remove the inner set screw(s). Removing this screw(s) will cause the gib to fall out of alignment.
2. Tightening the set screw (slight clockwise rotation) draws the upper blade into the lower blade.
3. Verify blade operation. There should be a light scraping between blade edges as blades close.
Back Gib Guide
Back Gib (Right Side)
Before adjusting the back gib, the plastic guard must be removed.
NOTE: Do not loosen eccentric bolts (#12) during this procedure.
1. Using a thumb to apply light pressure against the retaining spring, insert a flat head screw driver into slot and turn. This lifts and removes the spring from the lower pivot pin (# 11).
2. Remove the screw holding the “L” bracket (# 6). Then, gently pull the small end of shear guard off the pivot pin. Replace the retaining spring and place shear guard in a safe place.
3. Using a 1/ 8 in. Allen wrench, remove the outer.250 in. set screw and carefully set this aside. Do not lose. The inner set screw (.375 in.) can be adjusted. Do not remove.
CAUTION: Do not remove the inner set screw. Removing both inner screws will cause the gib to fall out of alignment.
4. Tightening the set screw (slight clockwise rotation) draws the upper blade into the lower blade.
Verify blade operation.
There should be a light scraping between blade edges as blades close. Readjust if necessary. ‘
Insert the outer .250 in. set screw and lightly tighten against the first set screw to hold it into place.
Replace plastic guard* and secure with retaining ring.
Align “L” bracket and secure with screw. With adjustment complete, your shear is ready to use.
NOTE: If problems arise, that these simple adjustments do not correct, call your distributor
NOTE: Some set screw holes may have only one long set screw used for gib adjustment. If this is the case, a thread locking compound such as “Loctite” should be used to hold this screw in place after adjustment is made. The “Loctite” must be applied to the threads of the set screw before it’s completely in the hole.
*The Guard is stationary. It does not move at all.
Removal and installation of the top and bottom shear blades caution: Due to the sharpness of blades, it is recommended that gloves be used during this process to prevent injury. EXTREME CAUTION IS ADVISED.
Scewdrivers, regular and Phillips 1/8 in.
Allen wrench 7/16” socket and open ended wrench
Upper Blade Removal
1. Remove screw holding Safety Guard
2. Remove retaining ring holding the safety guard
3. Remove Safety Guard
4. Replace retaining ring to hold pin in place.