71
F.
Remove volute from pump head.
NOTE
Gentile tapping with a non-marring hammer may be required to loosen the volute
from the pump head.
G.
Remove all remaining gasket material from mating surfaces of volute and
pump head.
Measure clearance rings and impeller hub (see Table 23.), replace if out-of-tolerance. If the
clearance rings have failed, perform RSD Clearance Ring R&R (see paragraph 5.8.7.2 on
page 110). If the impeller has failed, perform Impeller R&R (see paragraph 5.8.4.6 on page 81).
If the mechanical seal has failed, perform RSD Mechanical Seal R&R (see paragraph 5.8.4.10 on
page 93).
RSD Volute Installation
A.
Apply a small amount of grease to a new gasket and align gasket on pump
head.
B.
Apply O-ring lubricant to a new pump head O-ring.
C.
Using care NOT to damage O-ring, install O-ring on pump head.
D.
Using care NOT to damage clearance rings or impeller, install volute onto
pump head.
NOTE
Gentile tapping with a non-marring hammer may be required to seat the volute onto
the pump head. Using the bolts to pull the volute (especially if the volute is angled)
into the pump head may damage the O-ring.
E.
Install volute fasteners.
Clean original fastener threads (or replace with the correct new fasten-
1.
ers).
Apply Loctite™ 243 (or equivalent) to threads of fasteners.
2.
Install twelve (12) 7/16 — 14 UNC x 1.25-in screws that hold volute to
3.
pump head.
Refer to Table 22 for recommended torque values for fastener size and
4.
material.
F.
Connect mounting bracket(s) as noted/match marked.
G.
Connect any electrical wiring according to tags.
H.
Connect all suction, discharge, and cooling tubing and piping as noted/match
marked.
I.
Perform paragraph 4.4.4.1.3, Performance Testing Test Procedure, to verify
repair complete and pump in working condition. Repair any leaks or prob-
lems. (See page 41.)
J.
Update maintenance log entries.
K.
Place apparatus in service in accordance with departmental procedures.
Содержание AP
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Страница 71: ...59 Figure 19 One Piece Volute AP CBP MBP Figure 20 Three Piece Volute RSD...
Страница 73: ...61 Figure 21 AP Pump Exploded View...
Страница 74: ...62 Figure 22 CBP Pump Exploded View...
Страница 75: ...63 Figure 23 MBP Pump Exploded View...
Страница 76: ...64 Figure 24 RSD Pump Exploded View...
Страница 77: ...65 Figure 25 Gearbox Exploded View All Except 3 74 1 GR...
Страница 78: ...66 Figure 26 Gearbox Exploded View 3 74 1 GR...
Страница 158: ...146 THIS PAGE INTENTIONALLY BLANK...
Страница 174: ...C 12 THIS PAGE INTENTIONALLY BLANK...
Страница 176: ...D 2 DATE HOURS RUN MAINTENANCE PROBLEM PART S USED REASON REPLACED INITIALS...