TM 9-2320-289-34
Table 2-1. Mechanical Troubleshooting (Con’t)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Step 2.
Check oil pressure test gage response to opening throttle. There should be rapid
gage response to opening throttle.
If pressure response is good; remove, disassemble, clean, and inspect
transmission control valve assembly. (See paragraph 5-7)
If pressure response is poor; check for restricted vacuum hoses and lines.
Clear any restrictions. Remove, clean, and inspect vacuum modulator
assembly and modulator valve. (See paragraph 5-3)
NOTE
There is no approved way to check transmission oil filter for blockage or
restrictions.
Step 3.
Step 4.
Step 5.
Step 6.
Step 7.
Step 8.
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
damage.
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, disassemble, clean, and inspect transmission oil pump. (See paragraph
5-15)
Check center support bolt for looseness. (See paragraph 5-1 9)
Tighten bolt to 25 Ib.-ft. (34 N.m) if loose.
Remove, disassemble, clean, and inspect transmission intermediate clutch. (See
paragraph 5-1 9)
Disassemble, clean, and inspect forward clutch assembly. (See paragraph 5-1 6)
Remove and inspect center support seals and center support assembly, (See
paragraph 5-1 9)
59. LONG 2-3 SHIFT WITH END BUMP, 2-3 SLIPPAGE, OR EARLY 2-3 SHIFT
Step 1.
Perform Mechanical Troubleshooting malfunction #58.
Step 2.
Remove, disassemble, clean, and inspect direct clutch assembly. (See paragraph
5-1 7)
Step 3.
Remove, disassemble, clean, and inspect front servo assembly, (See paragraph
5-10)
2-36
