Magnum Venus Plastech PRO AND SUPER PRO CHOPPER VRC-1000_2000_3000 - Manual (Page 20)

Pro & Super Pro Chopper Manual
Rev. 02/2013 Page | 20
Adjust Rubber Roll
1. Loosen the screw (F-HB-04C-24-GR5) holding the idler roll.
NOTE: The idler roll is also called the “sleeve and bearing.”
2. Loosen the screw (F-HB-04C-24-GR5) holding the rubber roll and mandrel.
3. The rubber roll should exert just enough pressure against the blade rotor to turn the
rotor. The rubber roll should be able to be turned while holding the rotor.
NOTE: The rubber roll may not be perfectly round, adjust to the middle point not
the high or low point.
4. Adjust the idler roll and the rubber roll until the idler roll is barely touching the rubber roll.
NOTE: Turn the roller eccentric nuts clockwise to tighten. Do not turn the nuts
counterclockwise. The idler roll should be just close enough to the rubber roll to
pull the fiberglass into the chopper without pulling the glass too tightly.
Install Chopper Cover
1. Attach the cover to the chopper, aligning the base plate’s notch with the boss in the
cover. Twist the cover stud to lock the cover in place.
WARNING: Never operate the chopper unless the cover is installed, or personal
injury may result.
Reinstall Glass
NOTE: Using two strands of glass helps achieve a better glass pattern and
prolongs the life of the chopper unit.
NOTE: Thread the glass through the brake adjustment guides to prevent strands
from overrunning the chopper after the gun has been shut off.
1. Bend the end of each glass strand to form a small loop.
2. Insert the loop into one hole in the chopper cover.
DANGER: Disconnect all air to chopper to prevent accidental injury.
DANGER: BLADES ARE SHARP. To prevent injury, insert fingers carefully.
3. CAREFULLY insert your finger into the chopper through the front port.
4. CAREFULLY place your finger under the roll and rotate the roll by pulling your finger
toward you. This pulls the glass strands into position between the rubber roll and
the blade rotor assembly.