TM 10-4320-315-24
3-33. MAINTENANCE OF PUMP - (Cont)
CAUTION
Do not insert metal objects in vanes.
NOTE
Impeller has right hand threads.
(d)
Unscrew and remove Impeller (6) from impeller shaft (13).
(e)
Remove spring (7) and shaft seal assembly (8) with O-ring (9).
(f)
Inspect wear ring (10). If worn, remove wear ring.
(g)
Remove retaining rings (11) and (12).
(h)
Using hydraulic press on flywheel end of shaft, press impeller shaft (13) slowly out of bearing
housing (3).
(i)
Remove wear ring/seal (14) as shaft moves it out of bearing housing (3). Remove seal (15).
(j)
Remove slinger (16).
(k)
Remove O-ring (17).
(I)
Inspect shaft sleeve (18). If worn, remove shaft sleeve.
(m) Remove seal (19) with O-ring (20).
(n)
Using hydraulic press, remove bearing (21) from impeller shaft (13).
(o)
Remove retaining rings (22 and 23) and bearing (24) from bearing housing (3).
b.
INSPECT.
(1) Wash all components except seal assembly in cleaning solvent.
(2)
Inspect metal parts for stripped/damaged threads, cracks, chips and weld damage.
(3)
Inspect bearings for smooth operation.
c.
REPAIR,
Repair is accomplished by replacement of parts.
d.
ASSEMBLE
(1) Assemble pump as follows (Figure 3-34):
(a) Install retaining ring (22) and bearing (24) into bearing housing (3).
3-73
