TM 5-1940-322-24
0138 00
HYDROJET IMPELLER REPLACEMENT (Contd)
INSTALLATION
1.
Install cone (2) on impeller shaft (4), pushing cone (2) all the way to impeller shaft (4) shoulder. Install
key (1), impeller (3), retaining pin (6), shaft sleeve (8), washer (9), and new locknut (10) on impeller
shaft (4). Do not apply sealing compound or tighten locknut (10) until shaft/impeller locking tool TD-
321273 is installed.
2.
Install shaft/impeller locking tool TD-321273 plate (12) into position over shaft sleeve (8) and on
studs (13) of intake housing (5). Install three screws (11) on impeller hub (7). Apply light coat of
sealing compound (243) to threads of impeller shaft (4) and tighten locknut (10) to 172192 lb-ft
(234260 Nm). Remove three screws (11) and shaft/impeller locking tool plate (12) from impeller
hub (7), impeller shaft (4), and intake housing (5).
CAUTION
Tailpipe housing must be supported at all times when pushing
housing over impeller shaft and onto studs. Failure to comply will
result in damage to equipment.
3.
Apply light coat of grease to new gasket (14) and install gasket (14), tailpipe housing (15), hydrojet
nozzle (17), and hydrojet steering deflector (16) on impeller shaft (4) and intake housing (5).
Apply light coat of sealing compound (243) to studs (13) and install eight insulator washers (20),
washers (19), and new locknuts (18) on studs (13). Tighten locknuts (18) to 2325 lb ft (3134 Nm).
4.
Loosen wing nut (22) on rod (24) and remove plate (23) from drive shaft support tool TD-321257,
impeller shaft (4), and inspection cover opening. Install new O-ring (26), if damaged. Install inspection
cover (27) on intake housing (5) with three wing nuts (21).
5.
Install pivot lever (30) on steering shaft (33) and steering deflector bushing (43) with washer (29),
screw (28), washer (31), and new locknut (32). Apply light coat of sealing compound (243) to threads of
screw (28) and tighten locknut (32) to 1214 lb-ft (1719 Nm).
6.
Install ground strap (42) on bottom stud (38) of mounting plate (37) with insulator washer (39),
washer (40), and new locknut (41). Tighten locknut (41) to 2325 lb-ft (3134 Nm).
7.
Install hoses (34) on two water supply adapters (36) and tighten four hose clamps (35).
8.
Install hydrojet reverse deflector (WP 0140 00).
9.
Place boat in water, start engine, and check hydrojet operation (TM 5-1940-322-10).
6
1
5
7
SHAFT/IMPELLER
LOCKING TOOL
2
TD-321273
13
3
8
4
9
12
11
10
0138 00-6
