TM 5-1940-322-24
0138 00
HYDROJET IMPELLER REPLACEMENT (Contd)
NOTE
Both hydrojet impellers are removed and installed the same way.
This task covers the replacement of one impeller with hydrojet
assembly installed in boat.
REMOVAL
1.
Remove locknut (5), washer (4), screw (1), and washer (2) from steering shaft (6) and pivot lever (3).
Discard locknut (5).
2.
Loosen four hose clamps (8) and disconnect two hoses (7) from water supply adapters (9) on top of
tailpipe housing (10).
3.
Remove locknut (16), washer (15), ground strap (14), and insulator washer (13) from bottom stud (12)
on mounting plate (11). Discard locknut (16).
4.
Remove three wing nuts (19) and inspection cover (20) with O-ring (27) from intake housing (23).
Install drive shaft support tool TD-321257 through inspection cover opening with carriage (25) around
impeller shaft (26). Install support plate (22) and wing nut (21) on rod (24). Adjust wing nut (21) to
support impeller shaft (26).
5.
Support hydrojet steering deflector (18), hydrojet nozzle (17), and tailpipe housing (10) while removing
eight locknuts (30), washers (31), and insulator washers (32) from studs (33) on intake housing (23).
Discard locknuts (30).
CAUTION
Tailpipe housing must be supported at all times when pulling
housing off studs and impeller shaft. Failure to comply will result
in damage to equipment.
6.
Slowly pull tailpipe housing (10) back away from intake housing (23), gasket (28), and studs (33).
7.
Remove pivot lever (3) from steering shaft (6) and steering deflector bushing (29) as tailpipe
housing (10) is removed from gasket (28), intake housing (23), studs (33), and impeller shaft (26).
Discard gasket (28).
2
5
1
4
6
3
7
7
8
8
9
9
10
11
12
13
14
15
18
17
16
0138 00-2
