TROUBLESHOOTING
19
NO WHITE SMOKE
• Ensure there is sufficient mineral oil in the mineral oil
tank.
• Ensure the needle valve, seen on figure 10, is opened to
desired smoke thickness.
• Ensure engine is at max idle to produce the white
smoke.
• Check for 12 volts on the cartridge located under the
mineral oil tank.
• Check to make sure wires are not torn or connec ons
are not loose, electrical schema c is shown on page 20.
• For further assistance or service, please contact
Jackrabbit.
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BELT REPLACEMENT
• If belt is worn and need to be replaced, Jackrabbit
replacement part number is 57851.
• Before star ng maintenance on belt, disconnect ground
and power wires on ba ery.
• The vacuum pump is si ng on a plate that is designed to
slide. Loosen the bolts that fasten the pump to the floor
(do not remove completely).
• There is a length of all thread a ached to the plate the
pump rests on. The two hex nuts on the all thread move
the pump. To slide the pump to the le , loosen the nut on
the le side and ghten the nut on the right side. As the
hex nut gets ghtened on the right side, the pump should
start to slide to the le (shown in figure 16).
FIGURE 16
• Once the pump is moved enough to the le , the belt
should be loose enough to remove. Walk the belt off of
the sheave by prying it with a screw driver and turning the
sheave at the same me.
• Once the belt is off the sheave, it can be removed. The
new belt is ready to be installed.
• Once the new belt is set into place, slide the pump to
the right to ghten the new belt. This can be done by
loosening the hex nut on the right side and ghtening the
hex nut on the le side. Con nue to slide the pump to the
right un l the belt has less than half inch of play, no play
in the belt is too ght. Another good rule of thumb is it
should be difficult to twist the belt half of a turn.
• Once the belt has the correct tension, ghten both hex
nuts to lock the pump into place.
• Reconnect ground and power wires on ba ery.
• For further assistance or service, please contact
Jackrabbit.
