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 1.
Packing gland nut
8.
Lobe
2.
Packing gland
9.
Rotor key
3.
Packing
10.
Rotor
4.
Nuts, body
11.
Laminated shim
5.
Gasket, port plate
12.
Shaft sleeve
6.
Gasket, lobe
13.
Water slinger
7.
Shaft nut
Figure 5-70. Priming pump.
(2) Remove lobe (8) and gasket (6).
(3) To replace packing, make up three rings of packing
(3) Remove shaft nut (7) and withdraw rotor from shaft.
of the same size and length as that removed and replace in
stuffing box. Stagger ends of packing as they are replaced, to
prevent leakage through packing butts.
NOTE
(4) Replace packing gland; tighten evenly while turning
All wearing parts are now visible for
shaft to prevent packing from binding on shaft.
inspection and no further dismantling is
e. Assembly.
required.
(1) Replace rotor on shaft making sure key (9) aligns in
the rotor keyway.
d. Cleaning, Inspection, and Repair.
(2) Replace shaft nut.
(1) Inspect sides of rotor for signs of rubbing and wear.
(3) Replace gasket (6) against body; replace four bolts
Should inside of rotor be rubbing against port plate, replace
and nuts and tighten.
laminated shim (11).
f. Installation.
(2) To remove packing (3) from packing gland (2)
(1) Position pump on foundation and place belt over
remove gland nuts (1), withdraw gland, and pull packing from
pulley.
stuffing box.
5-93
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