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 1.
Bearing housing cover
2.
Bearing housing
12.
Bearing housing
3.
Lantern ring
13.
Bearing adapter
4.
Throat bushing
14.
Bearing housing cover
5.
Inserted bearing
15.
Shaft
6.
Impeller, 1st stage
16.
Shaft
7.
Casing, top half
17.
Casing, bottom half
8.
Impeller, 2nd stage
18.
Shaft collar
9.
Case wearing ring
19.
Ball bearing
10.
Shaft sleeve
20.
Bearing locknut and washer
11.
Packing
Figure 5-67. Fire and salvage pump.
(3) Remove the capscrews holding bearing housings to
(9)
Withdraw bearing housing, with bearing
pump casing.
inside, from shaft.
(4) Remove bearing locknut and washer from shaft and
withdraw bearing housing, leaving the pump shaft supported
NOTE
on the pump packing.
Prior to removing the packing from each
packing gland both bearings must be in
NOTE
place and supporting the shaft.
Prior to removing the inner bearing,
replace outer bearing in order that shaft
(10) To remove the packing, back off on packing gland
will be supported by at least one bearing.
and remove the packing from the stuffing box. There is a
lantern ring (3) installed in the outer stuffing box under the
(5) Remove clutch (pare 5-30).
second ring of packing. There are three rings of packing
(6) Remove the bearing housing cover (14).
behind this lantern ring.
(7) Remove the locknut which holds the bearing in the
d. Cleaning, Inspection, and Repair.
bearing housing.
(1) Clean bearings thoroughly with fuel oil and dry.
(8) Remove the capscrews securing bearing housing to
Inspect bearings for cracked races or
pump casing.
5-88
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