Table 2-1. Mechanical Troubleshooting (Cont)
TEST OR inspection
60. FIRST AND SECOND SPEEDS ONLY; NO 2-3 SHIFT
Check tailpipe, muffler, exhaust manifolds, and exhaust pipe for restrictions.
Clear any restrictions.
Check for damaged or loose vacuum hoses. Remove, clean, and inspect vacuum
modulator assembly and modulator valve. (See paragraph 5-3)
Remove, disassemble, clean, and inspect governor assembly.
Remove, disassemble, clean, and inspect transmission control
(See paragraph 5-7)
Remove, disassemble, clean, and inspect direct clutch assembly,
Remove, disassemble, clean, and inspect front servo assembly (see paragraph
5-1 O) and rear servo assembly (see paragraph 5-9).
61. NO DRIVE OR SLIPS IN DRIVE
Inspect transmission linkage for damage.
Replace any damaged components. (See paragraph 5-2)
Test transmission oil pressure with brakes applied, D (Drive)) engine at
1000 rpm, (See paragraph 5-11)
If oil pressure is low, perform step 3.
If oil pressure is normal, perform step 5.
There is no approved way to check transmission oil filter for blockage or
Remove transmission oil filter and check for water in hydraulic fluid. (See
TM 9-2320-289-20) Inspect intake pipe and O ring for improper positioning and
Replace hydraulic fluid and transmission oil filter if any water Is present.
Replace intake pipe and O ring if damaged. Replace transmission oil filter if
blockage or restrictions are suspected.
Remove, clean, and inspect vacuum modulator assembly and modulator valve.
(See paragraph 5-3)