Справочник Пользователя для ITT SSH-F

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1. Bearings are located in and are part of the motor. For  

lubrication procedure, refer to manufacturer’s instruc-

tions.

2. On frame-mounted units, regrease at ,000 hours use  

or after 3 months. Use # Sodium or Lithium grease  

and fill until grease comes out of the relief fitting.

1. Always turn power off.
2. Drain system. Flush if necessary.
3. Remove motor hold-down bolts on close-coupled or  

disconnect coupling and remove spacer.

4. Remove casing bolts and pump hold-down bolts.
5. Remove motor and rotating element from casing.
6. Unscrew impeller bolt with a socket wrench. Do not  

rotation. It may be necessary to use a strap wrench  

around the impeller if impacting the socket wrench 

will not loosen the impeller bolt.

7. Remove impeller o-ring.
8. Insert two pry bars (80º apart) between impeller and  

seal housing. Pry off impeller.

9. Remove shaft sleeve, seal spring, cupwasher, seal 

rotary and impeller key.

10. Remove seal housing.
11. Place seal housing on flat surface. Press out stationary  

seal parts.

12. Remove deflector from shaft on frame-mounted 

units.

13. Remove bolts holding bearing cover to frame and  

remove bearing cover (frame-mount).

14. Remove lip seals from bearing frame and bearing 

cover (frame-mount).

15. Remove shaft and bearings from frame (frame-

mount).

16. Remove bearing retaining ring (frame-mount).
17. Use bearing puller or arbor press to remove ball  

bearings (frame-mount).

18. Remove wear ring if excessively worn. Use pry bar 

and/or vicegrips.

1. All parts should be cleaned before assembly.
2. Refer to parts list to identify required replacement 

items.

3. Reassembly is the reverse of the disassembly proce-

dure.

4. Replace lip seals if worn or damaged (frame-mount 

only).

5. Replace ball bearings if loose, rough or noisy when  

rotated (frame-mount only).

6. Check shaft for maximum runout of .005" TIR. Bear-

ing seats and lip seal areas must be smooth and free of  

scratches or grooves. Replace if necessary (frame-

mount only).

7. All mechanical seal components must be in good  

condition or leakage may result. Replacement of  

complete seal assembly, whenever seal has been  

removed, is good standard practice.

8. If wear ring is being replaced, do not use lubricants on  

the metal-to-metal fit when pressing in the replace-

ment.

9. If the impeller is removed, as for example to effect a  

mechanical seal change, this procedure must be  

followed: Old impeller bolt and impeller o-ring cannot  

be reused.

10. Install the mechanical seal stationary seat in the seal  

housing, using soapy water as a lubricant to ease  

insertion.

11. S-Group – Install the mechanical seal spring retainer,  

spring and rotary assembly on the shaft sleeve using  

soapy water to lubricate. Slide the shaft sleeve over 

the pump shaft, be sure that a new shaft sleeve o-ring 

is used.

NOTE:  THE SHAFT SLEEVE O-RING AND IMPEL- 

 

LER WASHER O-RING ARE ALMOST  

 

IDENTICAL IN DIAMETER. BE SURE TO  

 

USE THE SqUARE CROSS-SECTION  

 

O-RING IN THE IMPELLER WASHER. THE  

 

ROUND CROSS-SECTION O-RING IS USED  

 

IN THE SHAFT SLEEVE.

11. M-Group – Install the mechanical seal spring and 

rotary on the shaft sleeve using soapy water to lubri-

cate. Slide the shaft sleeve over the pump shaft. Be 

sure that a new shaft sleeve o-ring is used. Place the 

mechanical seal spring retainer over the impeller hub.

12. Place the impeller key into the shaft keyway and slide  

the impeller in place. Install the impeller stud and  

impeller washer. Be sure that a new impeller o-ring is  

used. Tighten S-Group (

3

⁄

8

" thread) to 7 lb.ft. and  

M-Group (½" thread) to 38 lb.ft.

13. Replace casing bolts and tighten in a crossing se-

quence to the torque values indicated below.
S-Group – 5 lb.-ft. (35 N-m)
M-Group – 37 lb.-ft. (50 N-m)

14. Check reassembled unit for binding by rotating shaft 

with appropriate tool from motor end.

15. If rubbing exists, loosen casing bolts and proceed 

with tightening sequence again.

Hazardous

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