Xylem 2000 Series Frame Mounted Pumps AC8652 REV.C - 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
ly
pre al
sea
of the stuffing box cover.) This will expose the
mechani
bove.
4
ve
e
retaining nuts.
3.
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.
e
ng
the inside of the outboard
ousing.)
5. Finish removing the shaft and outboard
6.
mp
7. ring press, remove
pump
CASING
(OPTIO
T earing rings are removed from
th
g ring
proximately 180° apart being careful not
to drill into casing or stuffing box cover.
2. Split the wearing rings using a chisel.
3. g
Se
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
ap
Remove the parts from the wearing rin
fit.
This completes the disassembly of the 2000
ries frame mounted pump.
14