GPI M-3295 Series Handbuch Seite 3

OPERATION
DANGER
To prevent physical injury, observe precautions against
fire or explosion when dispensing fuel. Do not operate
the system in the presence of any source of ignition
including running or hot engines, lighted cigarettes, or
gas or electric heaters.
WARNING
Observe precautions against electrical shock when op-
erating the system. Serious or fatal shock can result from
operating electrical equipment in damp or wet locations.
CAUTION
Avoid prolonged skin contact with petroleum fuels. Use
protective goggles, gloves, and aprons in case of splash-
ing or spills. Change saturated clothing and wash skin
promptly with soap and water.
To dispense fuel:
1. Remove the nozzle from the holder. Turn the pump on by
pulling down on the switch lever.
2. Insert the nozzle into the receiving tank and squeeze the
handle to dispense fuel.
3. After dispensing fuel, push the switch lever up to turn the
pump off and return the nozzle to the holder. The nozzle
may be locked in place to prevent unauthorized use.
CAUTION
Nozzle valve must be stored properly in
nozzle holder (as shown) when not in use.
The pump contains an automatic bypass valve to prevent
pressure buildup when the pump is on but the nozzle is
closed. Do not leave the pump on for more than 10 minutes
with the nozzle closed.
Never leave the pump running without fluid. Dry running can
damage the pump components.
The pump has a duty cycle of 30 minutes ON and 30 minutes
OFF. Do not overheat. Allow the motor to cool the same length
of time it was in operation.
The fuel strainer and check valve assembly should be cleaned
on a regular basis or if low flow rate is noticed.
If the pump becomes too hot, a thermal protector will automat-
ically shut the motor off and prevent operation until it cools.
CAUTION
Always turn the pump off if the thermal protector trips.
If left on, the pump will automatically reset when cool
and start pumping.
A. MOTOR DOES NOT RUN.
1. No electrical power to pump. Check breaker,
switchbox and wiring.
2. Thermal protector tripped. Allow motor to cool.
Thermal protector will automatically reset.
3. Rotor or vanes jammed. Remove coverplate and
check for damage or obstruction.
B. MOTOR RUNS, BUT NO FLOW.
1. Tank level low. Add fuel to tank.
2. Clogged filter assembly. Remove and clean filter
assembly.
3. Clogged or broken suction pipe. Remove pump
and clear suction pipe, replace as needed.
4. Broken shaft key. Replace shaft key. Check rotor
or vanes for obstruction.
C. PUMP FAILS TO PRIME.
1. Air leak in system. Check for air leaks at all joints.
2. Bypass valve stuck open. Remove bypass valve
and clean or replace as needed.
3. Check valve stuck open. Remove check valve and
clean or replace as needed.
4. Rotor or vanes worn. Check rotor and vanes for
excessive wear.
D. LOW FLOWRATE.
1. Low voltage. Check incoming line voltage.
2. Clogged filter assembly. Clean filter assembly.
3. Air leak in system. Check for air leaks at all joints.
4. Bypass valve stuck open. Remove bypass valve
and clean or replace as needed.
5. Rotor or vanes worn. Check rotor and vanes for
excessive wear.
Figure 3
6. Outlet is blocked. Check all accessories for block-
age.
7. Clogged or broken suction pipe. Remove pump
and clear suction pipe, replace as needed.
E. MOTOR STALLS WHEN NOZZLE IS CLOSED.
1. Bypass valve stuck closed. Remove bypass valve
and clean or replace as needed.
2. Rotor or vanes worn. Check rotor and vanes for
excessive wear.
3. Low voltage. Check incoming line voltage.
F. FUEL LEAKAGE.
1. Threaded joint loose. Check and reseal threaded
joint.
2. Insufficient bolt torque. Retighten bolts.
3. Lost or damaged O-rings. Check O-rings for dam-
age. Replace as needed.
4. Shaft seal worn or damaged. Fuel leakage from
drain hole indicates shaft seal needs to be replaced.
G. MOTOR OVERHEATS.
1. Pumping high viscosity fluids. Pump only low
viscosity fluids.
2. Clogged filter assembly. Clean filter assembly.
3. Clogged or broken suction pipe. Remove pump
and clear suction pipe. Replace as needed.
TROUBLESHOOTING
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