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Idiomas disponibles
Idiomas disponibles
ROTATION - The pump must run in direction of arrow on
pump case. All single phase motors are single rotation and
leave factory with proper rotation. Three phase motors may
run either direction. If rotation is wrong when first starting
motor, interchange any two line leads to change rotation.
STOPPING - Before stopping pump, close the discharge
valve. This will prevent water hammer and is especially
important on high head pumps.
FREEZING - Care should be taken to prevent the pump from
freezing during cold weather. It may be necessary, when
there is any possibility of this, to drain the pump casing
when not in operation. Drain by removing the pipe plug in the
bottom of the casing.
SERVICE
TROUBLESHOOTING GUIDE
A
No water delivered
B
Not enough water delivered
C
No enough pressure
D
Pump runs for short while, then loses prime
POSSIBLE CAUSE OF PROBLEM
1.
Pump not properly primed; repeat priming operation
2.
Discharge head too high. Check total head with gauge at pump inlet and discharge. (With no
water, the gauge at discharge would show shut-off presssure).
3.
Excessive volume being discharged. Throttle discharge valve.
4.
Speed too low. Check pump drive belts for slippages. If hot, tighten belts. Check motor voltage
and speed.
5.
Rotation wrong. Change shaft rotation.
6.
Suction lift too high. Check with vacuum gauge. This should not exceed 15 feet.
7.
Air leak in suction line. Check line under pressure to find leak.
8.
Air pocket in suction line. Check line for proper slope.
9.
Insufficent submergence of suction pipe. Foot valve should be three feet below lowest water
level.
10.
Sediment chamber clogged. Remove and clean thoroughly. Make sure gasket is in good
condition and sealing surfaces clean before reassembly of sediment chamber cap.
11.
Impeller or suction line plugged.
12.
Impeller and volute case badly worn. Disassemble pump; if clearance on diameter is over
.030", replace worm impeller and worn volute case.
13.
Suction strainer plugged. Clean strainer.
14.
Impeller diameter too small for condition required.
15.
Seal leaking - seal is worn or seal face cocked. Replace with new seal and carefully follow directions.
ROTARY SEAL - CT pumps are fitted only with a rotary seal.
This seal is recommended for water free from abrasives. If
liquid contains abrasives, the CT pump should not be used.
MOTOR - Customer supplied standard NEMA 56C frame,
single or three phase.
BEARINGS - The pump motor uses sealed ball bearings that
are factory lubricated and do not require further lubrication.
3
D
C
B
A
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X
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