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SEASONAL SERVICE
• To REMOVE pump from service, remove drain plug
and drain all unprotected piping.
• To RETURN pump to service, replace drain plug using
Teflon™ tape or equivalent on male threads.
• Reconnect suction line if removed, examine union and
repair if necessary.
• Refer to OPERATION section of manual.
DISASSEMBLY
• Follow ALL warnings and instructions in the "MAINTE-
NANCE" section of this manual.
• Close-coupled units: Remove motor hold-down bolts.
• Frame-mounted units: Remove coupling guard, spacer,
coupling and frame hold-down bolts.
LIQUID END
1. Remove casing bolts (13).
2. Remove back pull-out assembly from casing (1).
3. Remove casing wear ring (4) if excessively worn.
NOTICE: DO NOT INSERT SCREWDRIVER BETWEEN
IMPELLER VANES TO PREVENT ROTATION.
4. On close-coupled units, remove motor end plug or
cover to expose screwdriver slot or flats on end of
motor shaft.
5. While restraining shaft with an appropriate tool (close-
coupled units) or with a strap wrench (frame-mounted
units) remove impeller bolt (6). Impeller bolt may need
to be heated with torch to remove. Discard.
NOTICE: EXERCISE CAUTION WHEN HANDLING
HOT IMPELLER BOLT.
NOTICE: FOR SAE DRIVE UNITS, REMOVE IMPELLER
NUT SET SCREW (22A) PRIOR TO
REMOVING IMPELLER NUT (22). IMPELLER
SET SCREW AND IMPELLER NUT MAY NEED
TO BE HEATED TO BE REMOVED.
6. Remove impeller washer (7).
7. Insert two pry bars, 180° apart, between impeller (2) and
seal housing (3). CAREFULLY pry off impeller.
8. Remove impeller key (8).
9. Remove seal housing bolts (14) and seal housing (3)
pulling with it the mechanical seal assembly. Discard
seal assembly and seal housing o-ring (9). For packed
box pumps see "PACKED BOX INSTRUCTIONS".
10. Remove adapter (108).
11. Inspect shaft sleeve (11). If badly scored, remove by
heating with torch. Discard.
12. Push out the mechanical seal stationary seat from the
seal housing. Discard.
13. On units equipped, remove seal housing wear ring (5)
if excessively worn.
DISASSEMBLY OF BEARING FRAME OR
SAE BEARING FRAME
1. Remove deflector (123) from shaft.
2. Remove bearing cover (134).
3. Remove shaft assembly from frame.
4. Remove lip seals (138, 139) from bearing frame (228)
and bearing cover (134) if worn. Discard.
All manuals and user guides at all-guides.com
5. Remove retaining ring (361).
6. Use bearing puller or arbor press to remove ball
REASSEMBLY
• All parts should be cleaned before assembly.
NOTICE: O-RING SHOULD BE REPLACED AFTER ANY
BEARING FRAME
1. Replace lip seals if removed.
2. Replace ball bearings if loose, rough or noisy when
3. Check shaft (122) for runout. Maximum permissible is
4. Refer to the "MAINTENANCE" section of this manual
LIQUID END
1. Inspect shaft removing any debris or burrs.
2. Treat shaft with LOCQUIC
3. When replacing shaft sleeve, spray new shaft sleeve's
NOTICE: MECHANICAL SEAL MUST BE REPLACED
4. Replace seal housing wear ring, if removed.
5. For mechanical seal pumps, stationary seal seat may
6. Place adapter, concave face pointing up, over motor
7. Replace seal housing o-ring. This o-ring may be
8. Fully and squarely install the rotary assembly of seal
NOTICE: REPLACE IMPELLER BOLT AND WASHER
9. Install impeller key in shaft keyway. Mount impeller on
10. Install new impeller washer. Impeller washer not used
bearings (112, 168).
DISASSEMBLY OF UNIT.
rotated.
0.002" (0.05 mm) TIR.
for M-group bearing frame regreasing instructions.
®
following manufacturer's instructions carefully.
bore with LOCQUIC
Primer "T", or equivalent. Let
®
parts dry and then apply LOCTITE
surfaces. Slide new sleeve over shaft with a twisting mo-
tion, wipe off excess. Let cure according to instructions.
WHENEVER SEAL HAS BEEN REMOVED.
FOLLOW SEAL MANUFACTURER'S
INSTRUCTIONS CAREFULLY. FOR PACKED
BOX PUMPS SEE "PACKED BOX
INSTRUCTIONS".
be dipped in water to ease installation. Place station-
ary seal seat squarely into seal housing bore. Cover
the polished face of the seat with a thin piece of
cardboard or paper towel. Press seat firmly into bore
using a round piece of plastic or wood that disperses
the force over the entire seal face. NOTE: If mechani-
cal seal is supplied with a spring retainer, remove and
discard the retainer.
shaft and lower it onto the motor.
lubricated with water or glycerin to ease in
installation. Install seal housing on adapter. Exercise
care in that the motor shaft does not dislodge or
damage seal seat.
against the stationary seat.
WHENEVER IMPELLER IS REMOVED.
shaft and push until it bottoms. Hold in place. For SAE
units, apply LOCTITE 271 to the impeller bore, key-
way and shaft. Mount impeller on shaft and push until
it bottoms. Hold in place.
for SAE units.
Primer "T", or equivalent,
#262 on the same
®
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