18 19
REPAIR PARTS
1/2 & 3/4 HP MODELS - REV C
ITEM HORSEPOWER 1/2 3/4 1 1-1/2
MODEL NO.: PART
NO.
ES05S
EK05S
416959
Rev B
ES05S
EK05S
416959
Rev C
-
CPH05S
Rev B
ES07S
EK07S
433225
Rev B
ES07S
EK07S
433225
Rev C
JHU10S
EK10S
Rev B
JHU15S
DESCRIPTION QTY.
1
†
Motor, Nema J
Motor Cover w/Screws
Screws, Cover
Motor Lead Wire
021301R
021302
98J105
1
2
136135A
98J105
1
2
136135A
98J105
1
2
136135A
98J107
1
2
136135A
98J107
1
2
136135A
98J110
1
2
136135A
98J115
1
2
136136A
2
3
Mounting Ring
Hex Hd. Cap Screws 3/8 x 3/4” *
134162
4
134162
4
135314
4
134162
4
134162
4
134163
4
134163
4
4
5
6
7
8
9
10
Ring, Square Cut
Seal, Rotary w/Spring
Impeller
Diffuser
Rubber, Diffuser
Pump Body
Plug, Priming
131100
132428
*
132583
1
139348
132424
1
134121
1/2” NPT
132583
1
023502††
132424
1
023381
132583
1
139349††
132424
1
134311
1/2” NPT
132583
1
139349††
132424
1
134121
1/2” NPT
132583
1
139349††
132424
1
023381
132429
1
134137
132425
1
134123
1/2” NPT
132429
1
134138
132425
1
134123
1/2” NPT
11 Base 128034A 1 1 1 1 1 1 1
12 Pressure Switch - ES
Pressure Switch - EK/JH/CP
020345
020345
020345
020345
-
020346
020345
020346
020345
020346
020345
020346
-
020346
13
14
†
†
Ejector Body
Ejector Gasket Pkg w/Bolts
Nozzle
Venturi
135021
132404
1
1
4C3916
4C5526
N/A
N/A
4C3915
4C6026
1
1
4C3916
4C5530
1
1
4C3916
4C5530
N/A
N/A
4C3916
4C6032
1
1
4C3914
4C5532
1
1
4C3918
4C5536
(*) Standard hardware item
(†) Not shown
(††) Impeller w/ 138138 Seal Ring
() Diffuser w/ 134240 Insert
3
11
1
2
4
5
6
7
8
9
10
13
12
3
11
2
4
5
6
7
8
12
9
1
14
13
1/2 THRU 1 HP
MODELS - REV B
1-1/2 HP MODELS -
REV C
TROUBLESHOOTING
Problem Possible Cause Corrective Action
Little or no
discharge
1. Casing not initially lled with water 1. Fill pump casing
2. Suction lift too high, or too long 2. Move pump closer to water source
3. Hole or air leak in suction line 3. Repair or replace. Use pipe tape and
pipe sealing compound
4. Foot valve too small 4. Match foot valve to piping or install
one size larger foot valve.
5. Foot valve or suction line not
submerged deep enough in water
5. Submerge lower in water
6. Motor wired incorrectly 6. Check wiring diagram
7. Casing gasket leaking 7. Replace
8. Suction or discharge line valves
closed
8. Open
Pump will not
deliver water
or develop
pressure
1. No priming water in casing 1. Fill pump casing
2. Leak in suction line 2. Repair or replace
3. Discharge line is closed and priming
air has nowhere to go
3. Open ball valve
4. Suction line (or valve) is closed 4. Open
5. Foot valve is leaking 5. Replace foot valve
6. Suction screen clogged 6. Clean or replace
Loss of suction 1. Air leak in suction line 1. Repair or replace
2. Suction lift too high 2. Lower suction lift, install foot valve
and prime
3. Insufcient inlet pressure or suction
head
3. Increase inlet pressure by adding
more water to tank or increasing back
pressure
4. Clogged foot valve or strainer 4. Unclog
Pump vibrates
and/or makes
excessive
noise
1. Mounting plate or foundation not rigid
enough
1. Reinforce
2. Foreign material in pump 2. Disassemble pump and clean
3. Impeller damaged 3. Replace
4. Worn motor bearings 4. Replace
Pump will not
start or run
1. Improperly wired 1. Check wiring diagram on motor
2. Blown fuse or open circuit breaker 2. Replace fuse or close circuit breaker
3. Loose or broken wiring 3. Tighten connections, replace broken
wiring
4. Stone or foreign object lodged in
impeller
4. Disassemble pump and remove
foreign object
5. Motor shorted out 5. Replace
6. Thermal overload has opened circuit 6. Allow unit to cool, restart after reason
for overload has been determined
14
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