Troubleshooting - SPX FLOW Universal TS Series Instruction Manual

Waukesha Cherry-Burrell Brand Universal TS Series

Troubleshooting

PROBLEM
No flow, pump screws
are not turning
No flow, pump screws
are turning
No flow, pump not
priming
06/2017
POSSIBLE CAUSE
Drive motor not running.
Keys sheared or missing.
Drive belts, power transmission
components slipping or broken.
Pump shaft, keys, or gears sheared.
Screws not properly timed
Screws turn in the wrong direction.
Relief valve not properly adjusted, or
held open by foreign material.
Suction port is blocked, not allowing
flow to the pump.
Slip too high
Valve closed in inlet line.
Inlet line clogged or restricted.
Air leaks due to bad gaskets or pipe
connections.
Pump speed too slow.
Pump speed too fast for high-
viscosity liquid.
Liquid drains or siphons from system
during off periods.
"Air" lock caused by fluids which "gas
off," or vaporize, or allow gas to
come out of solution during off
periods.
Worn screws
95-03141
Troubleshooting
SUGGESTED ACTION
Check resets, fuses, circuit breakers.
Replace.
Replace or adjust.
Inspect: and replace parts as
necessary.
Check clearances between screw
flanks. Re-time if necessary.
Check motor hookup to reverse motor
rotation.
Adjust or clear valve.
Check all inlet valves, strainers, tank
outlet ports.
Check flow-speed curve (available from
SPX FLOW website) and adjust as
necessary.
Open valve.
Clear line, clean filters, etc.
Replace gaskets; check lines for
leakage (can be done by air pressure or
by filling with liquid and pressurizing
with air).
Increase pump speed.
Decrease pump speed.
Use foot valve or check valves.
Filling inlet lines with material before
startup may solve startup priming
problems due to no material in system.
Install and use a manual or automatic
air bleed from pump or lines near pump.
Increase pump speed, use foot valve or
check valve to improve priming. Make
sure inlet and discharge are not
restricted.
Replace worn screws.
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