Tennsmith LM1014, Operation, Parts & Maintenance Manual, Page: 16 / 47

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4. With all bolts in place, securely torque the bolts while insuring that the blade is properly seated in
the machined blade slot of the cutter head by using either a brass or wood pry bar.
5.
Repeat the above procedures similarly to reposition the bottom blade.
6.
Use the procedures outlined in the BLADE CLEARANCE section of this manual to reset the
proper baled gap. CAUTION! Upon repositioning the shear blades, it is imperative that the bottom
blade be adjusted well clear of the top blade before attempting to jog the cutter head down to make
the blade clearance adjustment. Otherwise, crashing of the blades could result in severe damage
to the machine.
7.
Reposition the hold down assembly.
BACKGAUGE INFORMATION
The LM shear is fitted with a front operated back gauge as standard equipment. The gauge was installed
and calibrated at the factory and shipped intact mounted on the shear. Inspect the gauge carefully to
determine any possible movement or damage in transit.
The gauge has 30 inches of travel. To verify the back gauge was not disturbed during shipping, rotate the
hand wheel bringing the gauge into contact with the bottom blade. The display should now read zero. If
the display has a value other than zero and gauge is in fact in contact with the bottom blade, the unit must
be adjusted.
ADJUSTING the BACKGAUGE
When adjusting the back gauge, first determine that the two upper support shafts (123) are inserted into
the welded collars at the rear of the cutter head at equal amounts. The factory setting is 1.5 inches from
the face of the collar to each of the front two support brackets (128). Upon verifying this dimension, notice
that each support bracket has a hex head bolt threaded into the body of the bracket. When the gauge is
brought in to a zero reading on the display, the head of these bolts contact the adjusting blocks (127) and
provide for a more definite stop for the readout. To perform the adjustment, bring the adjusting blocks in
contact with the bolts and then adjust the threaded rods (109) connected to the stop (100) so that the stop
is flush against the bottom blade at both ends of the shear. Be certain to retighten the lock nuts (115) of
the threaded rod.