Gorman-Rupp Pumps UNIT 608 1347755 thru 1395613 - Manual (Page 19)

OM−01228 UNIT SERIES
TROUBLESHOOTING PAGE D − 2
TROUBLE POSSIBLE CAUSE PROBABLE REMEDY
PUMP REQUIRES
TOO MUCH
POWER
UNIT CLOGS
FREQUENTLY
EXCESSIVE NOISE
Liquid solution too thick. Dilute if possible.
Low or incorrect voltage. Measure voltage, both when pump
is running and when shut off.
Liquid solution too thick. Dilute if possible.
Discharge line clogged or restricted; Check discharge lines; straighten
hose kinked. hose.
Feeding hose assembly into tank too Feed hose assembly slowly and
fast. watch flow through sight glass.
Cavitation in pump. Reduce suction lift and/or friction
losses in suction line. Record
vacuum and pressure gauge
readings and consult local
representative or factory.
Pumping entrained air. Locate and eliminate source of air
bubble.
Pump or drive not securely mounted. Secure mounting hardware.
Impeller clogged or damaged. Clean out debris; replace damaged
parts.
Hose assembly has become tangled Shutoff unit and drain hose
and the flat spring strap inside the hose assembly back into the tank. Re-
will not allow the assembly to easily
move reel from the standpipe.
slide back through the bottom opening Do not force the hose assembly
of the standpipe. Tangling has occurred through the standpipe. Carefully
due to improperly directing the hose
raise the standpipe (with the hose
inside the tank or by continuing to feed assembly still inside) out of the tank
the hose assembly after the nozzle has fill pipe, then carefully feed the
contacted the end of the tank. hose assembly back through the
standpipe. Roll the hose assembly
back into the reel, making sure the
steel strip inside the hose is not
twisted. The steel strip must roll
parallel to the axis of the reel
(similar to the tape in a measuring
tape ruler). Set up the equipment
again, this time being careful to
properly feed the hose assembly
into the tank.
HOSE ASSEMBLY
WILL NOT REEL
BACK UP THE
STANDPIPE. HOSE
SEEMS STUCK IN
STANDPIPE.