Instruction 2111-801C
01-04
9
PERIODIC INSPECTION:
To insure the best operation of the pump, make a systematic Inspection at least once a week:
1. See that automatic float controls respond to rising water level in the basin.
2. See that unit starts when the float switch makes contact and that pump shuts off at the low water level.
3. See that motor comes quickly up to speed and maintains constant rotation rate. If motor is brush type, see
that it does not spark profusely while running or starting.
Shutting Down:
When shutting down the pump for an extended period, the motor disconnect switch should be opened, all
valves on suction, discharge and packing lubrication lines shut tight, and the pump completely drained of
water by removal of vent and drain plugs until water has run out. This protects pump against sedimentation
and freezing. It is also a good policy at this time to inspect the pump and bearings thoroughly so that all
necessary servicing may be done during the inactive period. Relubricate bearings in power frame per
instructions. Rotate shaft every two-weeks.
LOCATING TROUBLE
IF PUMP FAILS TO OPERATE:
1. Check fuses and thermal overload units, see if fuse is blown, thermal overload tripped or loose. Before
replacing a burnt fuse, be certain cause for blowing is determined and corrected. Before resetting a tripped
thermal unit, allow it to cool.
2. Be certain the shaft rotates try turning by hand. If it will not turn, or is unusually stiff, see that the pump is
not clogged; that motor, pump or steady bearings are not worn, dry or jammed by corrosion; that the shaft is
properly aligned; and. that packing glands (16) are not too tightly or unevenly adjusted.
3. See that switch contacts are not corroded, shorted or terminal connections broken anywhere in the circuit.
4. See if the automatic float control mechanism is functioning.
5. See if motor is shorted or burnt, or if brushes (when present) are stuck or worn.
6. See that wiring hook-up and service provided are correct and that all switches are set for operation.
IF NO WATER IS DELIVERED:
CHECK:
1. If the water level is so low that pump is not primed.
2. Pump to see if it is air bound by venting casing at plug (22).
3. Whether the gate valve in discharge line is shut or check valve is jammed.
4. Whether the suction pipe or inlet is clogged or gate valve is closed.
5. TDH, see if beyond pump rating.
6. If pump rotation is reversed.
7. If the impeller is badly worn.
8. If the motor speed is too slow.
IF NOT ENOUGH WATER IS DELIVERED:
CHECK:
1. If there are air leaks in the suction line or stuffing box.
2. If motor speed is too slow.
3. If the TDH is higher than anticipated.
4. If the impeller is worn or plugged.
IF FUSES BLOW OUT:
1. Check fuse rating used to that advised under "Fuse Recommendation."
2. Turn shaft by hand to see that it rotates freely. If it sticks or turns with difficulty, see paragraph 2 under
LOCATING TROUBLE.
3. Check wiring and controls. Test for loose connections.
4. See that controls are not worn or arcing.
5. See that motor is not grounded or partially burnt out.
6. Check brushes (when present) for sparking while running or starting, or for sticking.
7. Observe if motor is overheating from overload or lack of proper ventilation.
8. See if fuse location is too hot.
