23833A470 02/26/13
7
CONDITION
Pump is noisy and pump rate is low.
Grease and solids have accumulated around pump
and will not pump out of basin.
PROBABLE CAUSE
1. Impeller may be partially clogged with some foreign
objects causing noise and overload on the motor.
2. Impeller may be rubbing on wear ring due to bent
shaft or misalignment.
3. Pump may be operating too close to shut-off. Check
head.
1. Lower control switch may be set too high.
2. Run pump on Hand operation for several minutes with
small amount of water running into basin to clean out
solids and grease. This allows pump to break suc-
tion and surge which will break up the solids. If level
switch is set properly, this condition generally will not
occur.
3. Trash and grease may have accumulated around floats
causing pump to operate erratically.
CAP SCREW
TORQUE VALUE
3/8-16
20 ft.-lbs.
1/2-13
43 ft.-lbs.
5/8-11
93 ft.-lbs.
3/4-10
128 ft.-lbs.
7/8-14
193 ft.-lbs.
1 7 2 8 3 9 4 5 6
1
7
2
8
3
9
4
5
6
1 2
3
POTTING
RESIN
CONTROL
CORD
TERMINAL
POSTS
POWER
CORD
ELECTRODE
HEAT SENSOR
ON STATOR
GROUND SCREW
RED
RED
WHITE
BLACK
BLACK
BL
AC
K
RED
WHITE
GR
EEN
GRE
EN
PROBE TEST RESISTOR
ON HAZARDOUS LOCATION ONLY
STATOR
A B
0 0
230 VOLT - THREE PHASE
1
7
2
6
5
4
8
3
9
POTTING
RESIN
CONTROL
CORD
TERMINAL
POSTS
POWER
CORD
ELECTRODE
HEAT SENSOR
ON STATOR
GROUND SCREW
RED
RED
WHITE
BLACK
BLAC
K
BL
AC
K
RED
WHITE
GR
EEN
GRE
EN
PROBE TEST RESISTOR
ON HAZARDOUS LOCATION ONLY
STATOR
A B
0 0
460 VOLT - THREE PHASE
1
2
3
7
4
8
4
9
5
BLACK BLACK
POTTING
RESIN
CONTROL
CORD
TERMINAL
POSTS
POWER
CORD
ELECTRODE
HEAT SENSOR
ON STATOR
GROUND SCREW
RED
RED
WHITE
BLACK
BLACK
BL
AC
K
RED
WHITE
GR
EEN
GRE
EN
PROBE TEST RESISTOR
ON HAZARDOUS LOCATION ONLY
STATOR
A B
0 0
200 or 575 VOLT - THREE PHASE
1
2
3
BLACK BLACK
WIRING DIAGRAMS
