5
Series 3656SP Repair Parts
Item
Description
Material
Number
100
Casing
Cast iron
101
Impeller
Bronze
108
Motor adapter
Cast iron
126
Shaft sleeve
Stainless steel
178
Impeller key
Stainless steel
198
Impeller bolt (self-locking)
Stainless steel
199
Impeller washer
Stainless steel
347
Guidevane
Bronze
349
Guidevane seal ring
BUNA-N
351
Casing/adapter gasket
Composite
371
Hex head cap screw (adapter/motor)
Steel
371A
Hex head cap screw (adapter/casing)
Steel
383
Mechanical seal
John Crane Type 21: 1
1
⁄
4
"
408
Pipe plug
1
⁄
4
" x
3
⁄
4
"
Plated steel
459
Fillister head screw
Stainless steel
Trouble Shooting
FAILURE TO DISCONNECT
ELECTRICAL POWER BEFORE
ATTEMPTING ANY MAINTENANCE
CAN CAUSE SHOCK, BURNS OR
DEATH.
SYMPTOM
Motor Not Running:
See Probable Causes 1 through 5.
Little or No Water Delivered:
See Probable Causes 3, 4, 6 through 12, 15.
Excessive Noise and Vibration:
See Probable Causes 3, 6, 7, 10, 12, 13, 14.
PROBABLE CAUSES
1. Motor thermal protector tripped.
2. Open circuit breaker or blown fuse.
3. Impeller binding.
4. Motor improperly wired.
5. Defective motor.
6. Pump is not primed, air or gases in pumpage.
7. Discharge, suction plugged or valve closed.
8. Incorrect rotation. (3 phase only)
9. Low voltage or phase loss.
10. Impeller worn or plugged.
11. System head too high.
12. NPSHA too low – excessive suction lift or loss.
13. Discharge head too low – excessive flow rates.
14. Pump, motor or piping loose.
15. End of suction piping not submerged.
WARNING
Hazardous voltage
can shock, burn or
cause death.
Summary of Contents for 3656SP Series
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