Product Manual

REPAIR
Carefully inspect all parts for wear or damage. Replace compo-
nents, as necessary. The Illustrated Parts List gives information
on replacement parts and kits.
Review the Safety Instructions before proceeding.
Observe precautions against electrical shock when servic-
ing the pump. Always disconnect power before repairing or
servicing. Never apply electrical power to the system when
any of the coverplates are removed.
WARNING
Avoid prolonged skin contact with petroleum fuels. Use
protective goggles, gloves and aprons in case of splashing
or spills. Change saturated clothing and wash skin promptly
with soap and water.
CAUTION
5
SYMPTOM PROBABLE CAUSE CORRECTIVE ACTION
A. MOTOR DOES NOT RUN 1. Wiring problem Confirm all connections are tight and correct voltage is
getting to the pump.
2. Fuse blown Insert fuse in fuse holder on power cord. If blown, replace.
3. Rotor or vanes jammed Remove coverplate to expose rotor. Remove any obstructions.
Check for excessive vane and slot wear. If damaged, replace.
4. Circuit breaker switch defective Replace switch
5. Motor bad Contact the factory.
B. MOTOR RUNS, BUT NO 1. Tank level low Add fuel to tank.
FLOW
2. Clogged filter assembly Remove and clean filter assembly or replace.
3. Suction line problem Remove suction pipe and remove any obstructions.
4. Broken motor shaft key Replace shaft key in end of shaft. Check slot and vane for
excessive wear. Remove any obstructions.
5. Bypass poppet stuck open Remove bypass poppet and clean. If damaged, replace.
6. Motor running backwards Check wiring to confirm correct polarity.
C. PUMP FAILS TO PRIME 1. Air leak in system Check for air leaks at all joints. Reseal and tighten.
2. Bypass poppet stuck open Remove bypass poppet and clean. If damaged, replace.
3. Vanes worn or sticking Check slots and vanes for excessive wear or damage. If
damaged, replace.
4. Motor runs backwards Check wiring to confirm correct polarity.
(continued on next page)
TROUBLESHOOTING