TM 10-3930-641-34-1
TRANSMISSION TROUBLESHOOTING (CONT)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
17. TRANSMISSION DOES NOT OPERATE IN SECOND SPEED FORWARD OR REVERSE
Step 1. Inspect adjustment of speed control linkage.
Adjust linkage. (See TM 10-3930-641-20.)
Step 2. Inspect No. 5 clutch (second speed clutch).
a.
Check for worn or damaged parts
Replace as necessary. (See page 4-68.)
b.
Check for low oil pressure due to malfunctioning sequence and pressure control valve. (See page 4-237.)
Adjust valve. (See page 4-237.)
18. TRANSMISSION DOES NOT WORK IN THIRD SPEED FORWARD OR REVERSE
Step 1. Inspect adjustment of speed control linkage.
Adjust linkage. (See TM 10-3930-641-20.)
Step 2. Inspect No. 4 clutch (third speed clutch).
a.
Check for worn or damaged parts.
Replace as necessary (See page 4-68.)
b.
Check for low oil pressure due to malfunctioning sequence and pressure control. (See page 4-2371.)
Adjust valve. (See page 4-237.)
19. TRANSMISSION DOES NOT WORK IN FOURTH SPEED FORWARD OR REVERSE
Step 1. Inspect adjustment of speed control linkage.
Adjust linkage. (See TM 10-3930-641-20.)
Step 2. Inspect No. 3 clutch (fourth speed clutch).
a.
Check for worn or damaged parts.
Replace as necessary. (See page 4-68.)
b.
Check for low oil pressure due to malfunctioning sequence and pressure control valve. (See page 4-237.)
Adjust valve. (See page 4-237.)
2-51