Xylem IM016S Series 3656SP - Manuel (Page 5)

5
Series 3656SP Repair Parts
Item
Description Material
Number
100 Casing Cast iron
101 Impeller Bronze
103 Wear ring (5 HP “H” only) 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
* 5 HP “H” cast iron
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.
351
459 103 349
408
408
100 347
198 199
101
178
383
371A
371
126
108