TM 5-3805-262-20
3-14. TRANSMISSION TROUBLESHOOTING (CONT)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
4. LOSS OF DRIVE IN ALL RANGES.
Step 1. Check oil level with transmission at oper-
ating temperature (page 6-4), transmission
control lever in N (neutral) and engine
operating at idle speed.
a. If oil level is not between FULL and
ADD marks, add oil (page 6-4).
NOTE
One quart of oil will raise dipstick level
1/2 inch.
b. If oil level is between FULL and ADD
marks, go to step 2 below.
Step 2.
Remove engine right side panels
(page 9-14).
Watch control valve assembly
valve spool while an assistant
moves transmission control lever
through its entire range.
Movement of control valve assem-
bly valve spool should be seen.
a. If movement is not seen, re-
p l a c e / r e p a i r c a b l e / l i n k a ge
(page 6-10).
b. If movement is seen, go to
step 3 below.
Step 3.
Disconnect linkage at control valve assembly valve spool (page 6-10)
and engage transport/service link (page 9-8).
B e f o r e p e r f o r m i n g f o l l o w i n g , b e s u r e t h a t t r a n s p o r t / s e r v i c e l i n k i s
e n g a g e d . F a i l u r e t o d o s o c o u l d c a u s e s e r i o u s i n j u r y o r d e a t h d u e to
chassis pivoting and crushing you when you are working in area between
front and rear chassis.
Start engine, operate at idle speed, and apply parking brake.
3-105
