Barnes SE51A, Инструкция по установке и эксплуатации

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F-2) Impeller and Volute Service:
F-2.1) Disassembly and Inspection:
To clean out volute (1) or replace impeller (33), disconnect
power, remove hex bolts (26), and lockwashers (12),
vertically lift motor and seal plate assembly from volute
(1) see Figure 5. Clean out body if necessary. Clean and
examine impeller (33), for pitting or wear and replace if
required, inspect gasket (36) and replace if cut or damaged.
If the impeller (33) needs replacing, place a fl at screwdriver
in the slot of the end of the shaft to hold the shaft stationary
while unscrewing the jam nut (66) and impeller (33).
F-2.2) Reassembly:
To install impeller (33), clean the threads with thread
locking compound cleaner. Apply removable Loctite® 603
or equivalent to shaft threads. Screw impeller onto the shaft
hand tight while using a screwdriver in the slot at the end of
the shaft to hold it stationary. Apply thread locking compound
(60) to shaft threads. Then install jam nut (66) and torque to
40 ft. lbs.
It is important that the spring of the lower shaft seal (28)
seats in the hub of the impeller (33). Rotate impeller to check
for binding. Position gasket (36) on volute fl ange and position
impeller and motor housing on volute (1). Position lockwasher
(12) on cap screw (26) and screw into volute (1). Torque to
100 in-lbs. Check for free rotation of motor and impeller.
F-3) Shaft Seal Service:
CAUTION ! - Handle seal parts with extreme care.
DO NOT scratch or mar lapped surfaces.
F-3.1) Disassembly and Inspection:
Outer Seal (All Units) -
To expose shaft seal (28) for
examination, disassemble volute and impeller as outlined in
paragraph F-2.1. If further repair is required, remove retaining
ring (28d), spring (28c) and rotating member (28b) from shaft
(see Figure 6 & 7). Examine all seal parts and especially
contact faces. Inspect seal for signs of wear such as uneven
wear pattern on stationary members, chips and scratches
on either seal face.
DO NOT interchange seal components,
replace the entire shaft seal (28). If replacing seal, remove
stationary (28a) by prying out with fl at screwdriver.
Inner Seal (DS Units Only)- To expose inner shaft seal
(28) for examination, remove outer seal as outlined above.
Remove socket head cap screws (64). Lift outer seal plate
(29) and square-ring (27) from inner seal plate (5) see Figure
8. If further repair is required, remove snap ring (32), retaining
ring (28d), spring (28c) and rotating member (28b) from shaft.
Examine as outlined in outer seal paragraph. If replacing seal,
remove stationary (28a) by prying out with fl at screwdriver.
FIGURE 5
FIGURE 6 - DOUBLE SEAL
FIGURE 6 - SINGLE SEAL
FIGURE 7