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 1.
Impeller shaft sleeve
12.
Impeller shaft
2.
Pump casing
13.
Thrust bearing
3.
Casing gasket
14.
Frame shims
4.
Capscrews
15.
Bearing lockwasher
5.
Back head
16.
Bearing cover
6.
Seal cage
17.
Bearing locknut
7.
Packing
18.
Pump frame
8.
Packing gland
19.
Impeller
9.
Liquid deflector
20.
Impeller screw
10.
Inner bearing
21.
Impeller key
11.
Inner bearing seal
22.
Impeller shaft sleeve gasket
Figure 5-77. Fresh and salt water standby pump.
(2)
Remove impeller screw (20) from end of shaft.
(10) Remove thrust bearing (13) and impeller shaft as
(3)
Withdraw impeller (19) from shaft and remove
a unit.
key (21).
(11) Remove inner bearing (10) from pump frame.
(4)
Remove two nuts from packing gland (8) and
e. Cleaning, Inspection, and Repair.
slide packing gland against liquid deflector (9).
(1)
Clean bearings thoroughly with fuel oil and dry.
(5)
Withdraw back head (5) from pump shaft.
Inspect bearings for cracked races or missing balls. Rotate
(6)
Remove pump coupling half from end of shaft
bearing with air. Bearings which run rough when spun will be
and remove shaft key.
replaced.
(7)
Slide packing gland from shaft.
Remove
(2)
Pack each bearing with grease prior to replacing.
setscrew from liquid deflector and remove liquid deflector.
(3)
Clean bearing housing thoroughly and inspect
(8)
Remove capscrews from bearing cover (16) and
for cracks.
remove cover.
(4)
Inspect impeller shaft sleeve (1). If sleeve
(9)
Remove bearing locknut (17) and lockwasher
shows signs of scoring, replace.
(15) from shaft.
5-103
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