Carver RS A, Инструкция по установке, эксплуатации и обслуживанию

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RS Series – Multi-Stage, Ring Section Pumps January 2001
27
I. Pump Disassembly and Assembly
RS A, RS B, and RS C (with
standard sleeve bearing)
(Refer to
Figure 10 and Figure 11.)
DISASSEMBLY
NOTE
Refer to Section I, paragraph E, Safety
Precautions, before disassembling
pump.
NOTE
Pump should be dismantled from
discharge end. Mark or number each
component while dismantling according
to sequence. IMPORTANT: Check for
shims between impellers and spacer
sleeves, and mark the sequence
accordingly. The individual components
should be unscrewed or removed.
1. Remove coupling half from pump shaft
(6). Remove coupling key (46).
2. Drain pump by removing the following
plugs: plug (424) from the bottom of
each interstage case (111), plug (421)
from suction case (9) and plug (422)
from discharge case (1).
3. Clamp down suction case foot to steady
pump during disassembly.
4. Disconnect all male connector retaining
nuts from male connector (410), (411),
and (413) bodies, as applicable.
Remove tubing (400) and (401), as
applicable. Retaining nuts will remain
with tubing.
5. Support interstage cases (111) before
dismantling to prevent from being
dropped while discharge case (1) is
removed.
6. Remove hex nuts (616) and washers
(645). Remove tie bolts (173)
connecting discharge case (1) and
suction casing (9).
caution
Use of a hoist with adequate capacity is
recommended for lifting the discharge
case (1).
7. Remove discharge case (1). End cap
(37A) and sleeve bearing (63Y) will be
removed along with discharge case (1).
8. Remove nut (615) from stud (631).
Remove end cap (37A) from discharge
case (1). Remove o-ring (89H) from end
cap (37A).
NOTE
Refer to Table 5, Sleeve Bearing
Dimensions to determine if replacement
of sleeve bearing is required.
9. If replacing sleeve bearing, remove
sleeve bearing (63Y) from discharge
case (1).
10. Remove jam nuts (614) and washer (28)
from shaft (6). Remove shaft sleeve
(14X) from shaft (6).
NOTE
Do NOT remove bushing (63X) at this
point from last stage diffuser (5X).
NOTE
Do NOT remove diffuser (5X) from
casing (1) unless wear ring (7X)
replacement is required.
11. Remove wear ring (7X) with last stage
diffuser (5X), which holds bushing
(63X). Do NOT remove bushing (63X)
from last stage diffuser (5X).
12. Remove sleeve key (32X) and spacer
sleeve (14F), if applicable.
13. Remove last stage impeller (2X).
Remove impeller key (32C) or (32A), as
applicable.
14. Remove interstage casing (111) with
casing o-ring (89D), diffuser (5A) and
wear ring (7X) intact. Remove o-ring
(89D) from interstage casing (111).
15. If necessary, remove diffuser (5A) with
wear ring (7X). Remove impeller (2X).
16. Remove impeller key (32A). Remove
interstage sleeve (58). Remove
interstage shims (73G), as necessary,
from both sides of interstage sleeve
(58).
17. Repeat steps 14 through 16 for each
stage.
18. Remove the first stage impeller (2A).
Remove spacer sleeve (14D) or (14E).
19. Remove hex nuts (615) from studs (630)
on seal gland (17A).
20. Remove bolts (600). Remove bearing
frame (99). Shaft (6), mechanical seal
(90), seal gland (17A) and oil seal (169)
will come off with bearing frame (99).
21. Remove bolts (601) and remove bearing
cap (35).
22. Uncrimp locking tab of bearing
lockwasher (69). Remove bearing