Barnes 30MU, Installation And Operation Manual

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E-4) Impeller Shaft and Bearing Service:
Remove pump body, impeller, shaft seal and seal plate as
outlined in Section E-2 and E-3.
Pull slinger (24) from shaft (32). Remove cap screws (26)
and pull bearing cap (25) together with grease seal (30) from
bearing housing (34). Remove cap screws (36) and pull
bearing cap (35) together with grease seal (37) from bearing
housing (34). Remove bearing shims (27), (28) and (29). Tap
on drive end of shaft (32) with a block of wood and a hammer,
driving the shaft (32) together with the complete front bearing
(31) and the roller and cone of the back bearing (38) out of
the bearing housing (34). Examine bearings and grease
seals and replace if required.
If bearings are to be replaced, press bearing parts from shaft
and remove bearing cup from bearing housing by tapping
with a drift and a hammer. If grease seals are to be replaced,
press used seals out of bearing caps and replace. Press new
seals into bearing caps with patent number side out.
Place bearing cup for back bearing (38) into rear of bearing
housing (34). Be certain that the wide end of the cup taper is
facing the outside of the bearing housing. Press the cone and
roller of back bearing (38) onto drive end of shaft (32) seating
it snug against the shaft shoulder, with the taper running
toward impeller end of shaft. Press complete front bearing
(31) onto impeller end of shaft (32) seating it snug against
the shaft shoulder with the taper running toward drive end of
shaft.
Place assembled shaft and bearings into bearing housing
(34) key end first, bring the front bearing (31) into position
and press in place. If tight, use a sleeve and hammer to tap
into position. Replace back bearing cap (35) and grease seal
(37). Do not seat bearings too tight but make sure that a snug
fit is insured, yet permitting free movement of shaft in
bearings. Replace front bearing cap (25) and grease seal
(30) using required number of shims (27), (28) and (29) to
allow for a .005" shaft end play. Replace slinger (24) onto
shaft (32) before reassembling remainder of pump.
SECTION: F REPLACEMENT PARTS
F-1 ORDERING REPLACEMENT PARTS:
When ordering replacement parts, ALWAYS furnish the
following information:
1. Pump serial number and date code. (F-4)
2. Pump model number. (F-3)
3. Pump part number. (F-2)
4. Part description.
5. Item part number.
6. Quantity required.
7. Shipping instructions.
8. Billing instructions.
F-2 PART NUMBER:
The part number consists of a six (6) digit number, which
appears in the catalog. A one or two letter suffix may follow this
number to designate the design configuration. This number is
used for ordering and obtaining information.
F-3 MODEL NUMBER:
This designation consists of numbers and letters which
represent the discharge size, series horsepower, motor phase
and voltage, speed and pump design. This number is used for
ordering and obtaining information.
F-4 SERIAL NUMBER:
The serial number block will consist of a six digit number, which
is specific to each pump and may be preceded by a alpha
character, which indicates the plant location. This number will
also be suffixed with a four digit number, which indicates the
date the unit was built (Date Code).
EXAMPLE: A012345 0490.
Reference the six digit portion (Serial Number) of this number
when referring to the product.
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