Full Product Manual

fillrite.com | tuthill.com
13
| H-SERIES FUEL TRANSFER PUMPS
INSTALLATION AND OPERATION MANUAL
Symptom Cause Cure
Pump won’t prime
Suction line problem Check for leaks or restrictions in suction line
Bypass valve open Remove and inspect valve; must move freely and be free of debris
Vanes sticking Check vanes and rotor slots for nicks, burrs, and wear
Excessive rotor or vane wear Inspect rotor and vanes for excessive wear or damage; replace if necessary
Automatic nozzle Remove to prime pump
System blockages Check filter and bypass valve for debris; remove nozzle and test flow with pump ON
Low capacity
Excessive dirt in screen Remove and clean screen
Suction line problems Check for leaks or restrictions in suction line
Bypass valve sticking Remove and inspect valve; must move freely and be free of debris
Outlet blocked Check pump outlet hose, nozzle, and filter for blockage
Vanes sticking Check vanes and rotor slots for wear; replace if necessary
Excessive rotor or vane wear Inspect rotor and vanes for excessive wear or damage; replace if necessary
Hose or nozzle damage Replace hose or nozzle (Tuthill recommends UL-rated hoses and nozzles)
Plugged filter Replace filter
Low fluid level Fill tank
Pump runs slowly
Incorrect voltage Check incoming supply line voltage
Vanes sticking Inspect vanes and rotor slots for nicks, burrs, and wear
Wiring problem Check for loose connections
Motor problem Contact Tuthill Customer Service at 1-800-634-2695 (M-F, 8am-6pm EST/EDT)
Motor stalls, fuse blows,
thermal protector trips
repeatedly
Bypass valve sticking Remove and inspect valve; must move freely and be free of debris
Low voltage Check incoming supply line voltage
Excessive rotor or vane wear Check rotor and vanes for excessive wear or damage
Debris in pump cavity Clean debris from pump cavity
Motor overheats
Transferring high viscosity fluids These fluids can only be pumped for short periods of time (less than 30 minute duty cycle)
Clogged screen Remove inlet and clean screen
Restricted suction pipe Remove and clean pipe
Motor failure Contact Tuthill Customer Service at 1-800-634-2695 (M-F, 8am-6pm EST/EDT)
Pump rotor lock-up Clean and check pump rotor and vanes
Motor inoperable
No power Check incoming supply line power
Wiring issue Use multimeter to isolate issue with supply line power
Motor failure Contact Tuthill Customer Service at 1-800-634-2695 (M-F, 8am-6pm EST/EDT)
Locked rotor Clean and check pump rotor; repair as needed with KIT120RG
Incorrect/loose wiring Verify correct wire size with local, state, and national electric codes
Fluid leakage
Bad O-ring gasket Check and replace all O-ring gaskets (Rotor Cover / Inlet Flange / Bypass Cap)
Dirty/bad shaft seal Replace shaft seal with KIT120SL
Incompatible fluid Refer wetted parts list on Page 14 to the fluid manufacturer
Loose fasteners Tighten fasteners
Pump hums but will
not operate
Motor failure Contact Tuthill Customer Service at 1-800-634-2695 (M-F, 8am-6pm EST/EDT)
Broken rotor key Remove all debris and replace key
Troubleshooting (continued)