Xylem 2000 Series Frame Mounted Pumps AC8652 REV.C User Manual

Page 14

5. Remove the O-ring (2-914-

stuffing box cover and insp
Replace if necessary.

IMPEL

r nut (4-023-0). To do

ng the gland

(6-014-0) to the stuffing box (2-036-0).

3. Pull the stuffing box cover o

assembly.

NOTE

er 2000 Series pumps, it

will be necessary to remov

t sleeve. (In some cases,

the shaft sleeve may come off the shaft with

pre

sea
of the stuffing box cover.) This will expose the
mechani

bove.

retaining nuts.

gs (6-924-0) and, where

le, the seal cage (6-013-0) from

the stuffing box. A standard packing hook
is recommended for removing the pack

cage.

FRA

2. Remove snap ring (5-068-4) from the

sing.

26-4), and inboard bearing

board bearing housing.

the inside of the outboard

ousing.)

5. Finish removing the shaft and outboard

ring press, remove

pump

CASING
(OPTIO

earing rings are removed from

g ring

proximately 180° apart being careful not

to drill into casing or stuffing box cover.

2. Split the wearing rings using a chisel.

0) from the

ect for damage.

packing rin
applicab

LER REMOVAL

1. Lock the coupling end of the shaft in a

padded vise.

2. Remove the impelle

this, turn the impeller nut in the same
direction in which the impeller rotates
(counterclockwise viewing from the
suction inlet).

3. Pull the impeller (4-002-0) from the shaft

and remove the impeller key (4-911-0).

DISMANTLING THE STUFFING BOX

A. Pumps with Mechanical Seals
1. Remove spacer sleeve (1-154-0).

2. Remove the two nuts holdi

ff the shaft

bearing h

: On the larg

e the capscrews

holding the stuffing box cover to the frame.
The mechanical seal (6-400-0) should now be
exposed on the shaf

the stuffing box cover. If this happens, gent

ss or pull the shaft sleeve and mechanic

l from the stuffing box toward frame side

cal seal as a

. Remove the seal from the shaft sleeve,

examine for damage, and if necessary
replace.

5. Remove the gland (6-014-0), shaft slee

(1-009-0), and the deflector (1-136-0) from
the pump shaft. A puller may be used to
remove the shaft sleeve if it does not slid
off the pump shaft easily.

B. Pumps with Packed Stuffing Box
1. Loosen packing gland (6-014-0) by

loosening the two gland

2. Pull the stuffing box cover, gland, and

packing from the shaft.

Remove the two gland retaining nuts and
remove the gland (6-014-0). Remove the

bearing.

Remove the snap ring (5-086-0) from the
outboard end (motor end) of the pu
shaft.

Using a suitable bea

and seal

4. Remove the packing base ring.

ME DISASSEMBLY

1. Remove bearing caps (5-018-3 and

5-018-4).

outboard bearing hou

3. Press the shaft (5-007-0), outboard

bearing (5-0
(5-026-3) toward the motor side of the
frame until the outboard bearing clears the
frame’s out

4. Using a suitable pair of snap ring pliers,

remove snap ring (5-068-3) from th
outboard bearing housing. (Flat snap ri
located on

the inboard bearing (5-026-3) and the
outboard bearing (5-026-4) from the
shaft (5-007-0).

WEARING RING REMOVAL

NAL)

he optional w

e casing and stuffing box cover by the

following method:

1. Drill two axial holes into each wearin

Remove the parts from the wearing rin
fit.

This completes the disassembly of the 2000

ries frame mounted pump.