5
1
2
3
4
5
25
6
7
8
24
22
21
20
23
14
15
18, 19
13
17
16
12
9
11
Pump
Troubleshooting
Below is a list of troubles and
their probable causes:
No liquid delivered
1. Pump airbound
2. Discharge head too high
3. Pump or piping plugged
4. Speed too low
Insufficient liquid delivered
1. Discharge head too high
2. Impeller or cutters partially
plugged or damaged
3. Incorrect impeller diameter
4. Speed too low
Insufficient discharge pressure
1. Air or gases in liquid
2. Impeller damaged
3. Incorrect impeller diameter
4. Speed too low
Pump overloads motor
1. Specific gravity or viscosity of
liquid too high
2. Speed too high
3. Head lower than rating,
pumping too much liquid
4. Pump clogged
5. Defective bearings
6. Defective impeller
Pump is noisy
1. Defective bearings
2. No axial clearance between
impeller and volute
3. No diametral clearance
between radial cutter and
cutter ring
If the cause of the trouble
cannot be determined and
corrected as outlined above,
contact your nearest factory
representative.
Start Windings
7.53
Run Windings
1.56