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Troubleshooting
311307E
9
Motor stalls when nozzle is
closed.
Bypass relief valve is stuck.
Inspect relief valve, making
sure ball is free. Replace if
damaged.
Low supply voltage.
Check supply voltage.
Gears damaged and binding.
Inspect gears. Gears should
turn freely. Replace if dam-
aged.
Faulty pressure switch.
Replace pressure switch (20).
Motor overheating.
Gears binding.
Check to make sure gears turn
freely on shaft.
Clogged hose or nozzle.
Inspect and clean if required.
Operating pump more than 30
minutes continuous duty.
Limit operation to 30 minutes
per hour.
Switch will not turn pump on.
Blown fuse or tripped breaker.
Replace fuse or reset breaker.
Electrical problem.
Check that supply voltage is
proper and getting to pump.
Defective pressure switch (20). Check and replace if defective.
Damaged or defective motor.
Check motor (5), replace if
damaged or defective.
Outlet pressure above pres-
sure switch limit.
Open dispense valve to relieve
pressure.
Problem
Cause
Solution
Summary of Contents for 260110
Page 15: ...Notes 311307E 15 Notes...