Unit Mechanical Troubleshooting - continued

TM 9-2320-386-24-1-1

0010 00

Unit Mechanical Troubleshooting (Contd)

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

27. ROUGH SHIFTING

Step 1. Check transmission oil level (TM 9-2320-386-10).

Drain or fill transmission to proper oil level as necessary (WP 0023 00).

Step 2. Check transmission select lever and shift cable for proper operation.

a. Replace select lever if damaged (WP 0132 00).

b. Replace shift cable if bent, kinked, broken, or frayed (WP 0132 00).

c. Adjust shift cable (WP 0132 00).

END OF TESTING!

28. TRANSMISSION OVERHEATS (ACCORDING TO TRANSMISSION TEMPERATURE GAUGE)

Step 1. Check transmission oil level (TM 9-2320-386-10).

Drain or fill oil as necessary (WP 0023 00).

Step 2. Check for clogged or restricted transmission oil cooler and auxiliary oil cooler.

Replace transmission auxiliary oil cooler if clogged or restricted (WP 0140 00).

Step 3. Check transmission temperature sending unit (Electrical Troubleshooting, WP 0012 00),

malfunction 16, test 3).

Step 4. Check for restricted or clogged transmission oil cooler hoses.

Tighten or replace transmission oil cooler hoses (WP 0139 00).

Step 5. Test transmission temperature gauge for proper operation using a gauge known to be good.

Replace transmission temperature gauge if test gauge does not indicate overheating

END OF TESTING!

29. DIRT OR METAL PARTICLES IN OIL

Take transmission oil sample. Submit special sample in accordance with TB 43-0210.

END OF TESTING!

30. OIL THROWN FROM FILLER TUBE

Step 1. Check transmission fluid level for overfilling (TM 9-2320-386-10).

Drain oil to proper level (WP 0023 00). Recheck transmission for proper fluid level

(TM 9-2320-386-10).

Step 2. Check for clogged or restricted vent line.

Disconnect and clean or replace vent line.

Step 3. Check for loose dipstick tube.

Tighten if loose.

END OF TESTING!

31. TRANSMISSION OIL DIRTY, FOAMY, AND/OR MILKY

NOTE

Dirt/grit in transmission oil indicates oil needs to be changed

(step 1). Foaminess indicates contamination by air (step 2) or water

(step 3). Milkiness indicates contamination by water (step 3).

Check oil filler tube seal.