TM 10-4320-315-24
3-33. MAINTENANCE OF PUMP - (Cont)
(b)
Using hydraulic press, install bearing (21) on impeller shaft (13).
(c)
Install seal (19) with O-ring (20).
(d)
If removed, install shaft sleeve (18).
(e)
Install O-ring (17).
(f)
Install slinger (15).
(g)
Install seal (15) on wear ring/seal (14).
(h)
Install wear ring/seal (14).
(i)
Install retaining ring (12).
(j)
Using hydraulic press, install impeller shaft (13) (with assembled parts) into bearing housing (3).
(k)
Install retaining rings (11 and 23).
(I)
If removed, install wear ring (10).
(m)
Install shaft seal assembly (8) with O-ring (9).
(n)
Install spring (7).
(o)
Install impeller (6) on impeller shaft (13).
(p)
Install gasket (5) on pump body (4).
(q)
Install bearing housing (3) on pump body (4). Secure with lockwashers (2) and nuts (1).
(2)
Install flex coupling as follows:
(a)
Loosen socket head screws (7) that secure outer rubber flex (8) with inner steel hub (9).
(b)
Remove outer rubber flex (8) from inner steel hub (9).
(c)
Install key (12) onto pump shaft (11).
(d)
Position inner steel hub (9) on pump shaft (11) (chamfered edge towards pump) and key (12) flush
with end of shaft.
(e)
Secure inner steel hub (9) onto pump shaft (11) by tightening setscrew (10).
(f)
Place outer rubber flex (8) over inner steel hub (9) (pin-stud holes with extended bosses towards flywheel).
Provide for a clearance of 0.059 +0.0197 in. (1.5 +0.5 mm) between outer rubber flex
(8) and engine flywheel and secure by tightening socket head screws (7).
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