Tennsmith Inc. / 6926 Smithville Hwy. / McMinnville, TN 37110 / 931-934-2211 / Fax 931-934-2220
www.tennsmith.com
FOOT PEDAL ADJUSTMENT: Foot pedal lift is similarly adjusted through turnbuckle rotation. Lift
adjustment serves two purposes. It facilitates an acceptable working height for pedal operation and insures
proper blade penetration across the working length of the shear. First, secure the top gibb screw on each
side of the shear to maintain the blade rake angle. Then, adjust the foot pedal to what would appear to be an
appropriate return lift.
NOTE: When gibs are loosened a slight degree of additional lift will be achieved.
Once you have an approximate setting, loosen the top two gibb screws and depress the foot pedal. Examine
the L.H. side of the machine to determine that the top blade does indeed transcend the bottom blade by at
least 1/8 of an inch. If this is the case, tighten the jam nuts on the turnbuckles themselves or your rake
alignment will be distorted. Should the penetration be less than satisfactory, retighten the gibs to maintain
rake and adjust the turnbuckles for additional pedal lift. This will allow for deeper penetration. Reverse the
procedure for opposite circumstances.
When adjusting the turnbuckles, be certain that both linkages have the same amount of tension applied to
each. That is, if one turnbuckle has more play or lost motion in it than the other, it should be readjusted
accordingly.
As an additional point, it should be noted that there are two leverage holes provide in the foot pedal arms for
connecting the linkage assembly. Your shear was shipped with the pins in the uppermost holes and should
supply adequate leverage for shearing material within the machine’s rated capacity. However, if you will be
operating the shear at its peak capacity, moving the linkage pins to the lower of the two holes will give you
some additional leverage.
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