moyno Version 3, Руководство по обслуживанию

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3. Thread packing glands (25) into threaded portions of
bearing retainer (28).
4. Bolt spacer (30) and bearing retainer (28), with small
threaded holes facing upward, to suction flange (31).
5. Bolt two flange block bearings (10), with zerk fittings
facing upward, to bearing support (11). Thread idler ad-
justing bolt (E, F) into bearing support (11).
6. Attach idler arm (7) to bearing support (11).
7. Belt bearing support (11) to pump body.
8. Repeat steps 1-4 for the set of bearings to be mounted
at the other end of suction flange (31).
4-48. Paddle Assembly Installation
1. Insert flattened end of shaft (17) into left bearings (10),
as viewed from drive shaft end of pump. Slide gear (16), with
hub towards suction flange onto shaft (17) and continue to
insert shaft (17) into bearing retainer (28) and suction flange
(31) until the flattened end appears in suction port of pump.
Place oil tray (12) under gears (16).
2. Repeat step 1 for the other shaft (18) into adjacent
bearings (10).
3. Insert oil tray (12) under gears (16).
4. Insert both shafts (22), flattened end first, into dis-
charge end bearing retainer (28) until they appear in suction
port of pump.
5. Insert O-rings (20) into slots on inside diameter of each
end of both paddle assemblies (21).
6. Place paddle assembly (21) on shaft (17). Push shaft
(22) into paddle assembly (21). Ensure that flat side of shafts
(17 and 22) are aligned with welded keys on paddle assem-
bly. Also ensure that both shafts (17 and 22) are completely
inserted into paddle assembly (21) and that the paddle as-
sembly is centered in suction flange (31).
7. Twist set screw collar onto bearings (27) opposite to di-
rection of rotation to lock into position. Tighten set screws in
bearings (10 and 27) at each end of suction flange (31).
8. Repeat steps 5 and 6 for other paddle assembly.
Ensure that paddle assemblies are opposite each other by
90 degrees.
9. Align gears (16), and install gear keys (M) on shafts
(17 and 18).
4-49. Drive Assembly Installation
1. Attach chain cover (5) to pump body with two of the six
head screws attaching bearing cover plate to pump.
2. Slide idler sprocket (15), sprocket side first, onto idler
shaft (14). Position idler shaft (14) thru irregular hole in chain
cover (5) and thread into idler arm (7).
3. Position key (L) on shaft (17), and slide torque limiter
(3) and sprocket (4) onto shaft (17).
4. Place drive sprocket (33) on drive shaft of pump with
set screws facing away from bearing housing.
5. Align torque limiter sprocket (4), idler sprocket (15)
and drive sprocket (33). Install chain (9) ensuring that pad-
dle assemblies remain 90 degrees apart, and tighten set
screws on torque limiter (3), drive sprocket (33), idler arm
(14), and idler sprocket (15).
4-50. Final Assembly
1. Ensure that all set screws are tightened.
2. Thread packing glands (25) into stuffing boxes
finger tight.
3. Ensure that all zerk fittings (G) are installed.
4. Attach oiler (1) and oiler nozzle (1A) to oiler support
(2). Attach oiler support to cover (13).
5. Attach bearing cover (6) to bearing support (11), and
chain cover No. 2 (13) to chain cover No. 1 (5). Attach
oiler support (2) to bearing cover (6).
6. Attach oiler (1) to gear cover (8), and screw cover (8)
to bearing support (11) at top of bearing retainer (28).
Screw oil tray (12) into gear cover (8).
7. Attach bearing cover No. 2 (19) to bearing
retainer (28).
4-51. STORAGE
4-52. Short Term Storage. Storage of 6 months or less
will not damage the pump. However, to insure the best
possible protection, the following is advised:
1. Store pump inside whenever possible or cover with
some type of protective covering. Do not allow moisture to
collect around pump.
2. Remove drain plug and inspection plates to allow the
pump body to drain and dry completely. Replace in-
spection plates.
3. Loosen the packing gland and inject a liberal amount
of grease into the stuffing box. Tighten the gland nuts only
hand tight. When water flush systems are to be used, do
not use grease. A small amount of light oil is recom-
mended.
4. See drive manufacturer’s instructions for motor and!
or drive storage.
5. See OPERATION Sections 3-1 through 3-5 before
start-up. Be sure all lubricants are in good condition.
4-53. Long Term Storage. If pump is to be in storage for
more than 6 months, perform the above short term storage
procedures plus the following:
1. Occasionally rotate the pump manually a few revo-
lutions to avoid a “set” condition of rotor in stator elas-
tomer. This will prevent hard starting and excessive torque
requirements when pump is again put into operation.