TM 5-1940-277-34
TROUBLESHOOTING PROCEDURES (Continued)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
9.
TRANSMISSION MALFUNCTIONS
CAUTION
Boat must be in water to run engine. For exception during organizational or higher maintenance
actions, refer to page 3-326; TM 5-1940-277-20.
Step 1.
Start engine and let run for 2 minutes with transmission in neutral. Shut engine off and wait 5
minutes and then check oil level. Must be to mark on dipstick.
a.
Fill with fluid to proper level (refer to TM 5-1940-277-10).
b.
Fluid level all right go to step 2.
Step 2.
Check for improperly adjusted control linkage (refer to TM 5-1940-277-20).
-
If linkage adjustment is correct go to step 3.
Step 3.
Test for low oil pressure with transmission in neutral (refer to page 2-21).
a.
Clean oil strainer (refer to TM 5-1940-277-20).
b.
Clean pressure regulator valve (refer to page 2-327).
c.
Check for weak pressure regulator spring.
d.
Replace defective oil pump (refer to page 2-237).
e.
If pressure all right contact supervisor.
Step 4.
Test transmission in forward position.
-
Report defective transmission to General Support.
Change 2
2-16
