Piranha IRONWORKER P90, Руководство по эксплуатации, Страница: 20 / 53

Operating Instructions 20
Shear Hold-Down Assembly Adjustment
The adjustment on the hold-down assembly should be accomplished by the following
manner. Reference page 34.
1. Raise the upper beam to its full upstroke limit.
2. Adjust the three-position hold-down locator per the following instructions:
a. Locator hole nearest punch end - Plate = 1/4" thick and less, Angle = 3/16" thick
and less.
b. Locator hole center position - Plate = 5/16" to 1/2" thick, Angle = 1/4" to 5/16" thick.
c. Locator hole nearest the coper end - Plate = 5/8" to 1" thick, Angle = 3/8" to 1/2"
thick*
3. Loosen the long hex head nut without removing it from the swing bolt, raising the hold-
down assembly.
4. Assure the hold-down bar has risen until it is directly under the long nut.
5. Insert material to be sheared under the hold-down assembly.
6. Tighten the long hex head nut to allow for approximately 1/8" clearance between the
bottom of the shear urethane and the top of the material to be sheared. The material
should move freely and not be held by the hold-down assembly at this point.
7. Lower the beam using the front control box joystick in the jog mode (reference Figure
"C") until the hold-down assembly firmly clamps the material. NOTE : The hold-down
assembly must firmly clamp the material before the shear knives engage the material
surface.
8. If the foot switch is to be used during the operation, adjust the limit switches to control
the length of stroke (reference procedures previously listed).