TM 5-1940-322-24
0006 00
MECHANICAL SYSTEMS TROUBLESHOOTING (Contd)
Table 3. Hydrojet Troubleshooting Procedures.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1. EXCESSIVE
universal joints, and mounting
joints are cracked, replace driveshaft
VIBRATION
hardware damage.
2. Check engine mounting bolts for
tightness.
(4047 Nm)
1. Replace impeller if worn or damaged
and inspect impeller for damage,
wear, or debris.
2. Clean if debris is present
(TM 5-1940-322-10).
1. Check intake grill for possible
Remove debris from intake grill
2. NOISY HYDROJET
WITH AERATED
blockage.
(TM 5-1940-322-10).
WATER AT EXIT
NOZZLE
1. Check intake grill for possible
Remove debris from intake grill
3. LOSS OF THRUST
FROM HYDROJET
blockage.
(TM 5-1940-322-10).
Replace impeller if worn or damaged
and inspect impeller for damage or
wear.
Replace fasteners if damaged or
3. Check driveshaft for loose,
missing.
damaged or missing fasteners.
Replace driveshaft if damaged
4. Check driveshaft and universal
joints for proper operation and
damage.
1. Check intake grill for possible
Remove debris from intake grill
4. EXCESSIVE ENGINE
SPEED
blockage.
(TM 5-1940-322-10).
Replace impeller if worn or damaged
and inspect impeller for damage or
wear.
1. Check steering deflector for signs
Remove debris from steering deflector.
5. EXCESSIVE
OPERATING LOADS
of debris obstructing operation.
(TM 5-1940-322-10).
FOR STEERING
2. Check oil level and for air in
1. Add oil to proper level
system.
3. Check linkage for proper operation.