PTO WILL NOT ENGAGE.

TM 5-2420-224-20-1

Table 3-5. Troubleshooting (Cont)

Malfunction

Test or InspectIon

Corrective Action

TRANSMISSION (CONT)

Step 5. Check clutch slave cylinder for proper adjustment as follows:

Remove return spring (1) from slave cylinder (2) and clutch lever (3).

b. Loosen lock nut (4) and back out adjusting screw (5) completely.

Move clutch lever (3) down until it stops. Clearance between clutch lever

(3) and adjusting screw (5) must be 1/8 in. (3 +0.05 mm).

If clutch slave cylinder is not properly adjusted, adjust clutch

slave cylinder (page 4-21).

If clutch slave cylinder is properly adjusted, notify direct support

maintenance.

81. PTO WILL NOT ENGAGE.

Check for interference with shift lever.

If there is no interference with shift lever, notify direct support

maintenance.

82. ALL WHEEL DRiVE/DIFFERENTIAL LOCK WILL NOT ENGAGE/FSENGAGE.

Step 1. Check for low air pressure.

If air pressure is less than 80 psi, go to Malfunction 89.

If air pressure is 80 psi or greater, go to step 2.

Step 2. Check for loose and damaged air lines and fittings.

If air lines and fittings are loose or damaged, notify direct

support maintenance.

If air lines and fittings are not loose or damaged, go to step 3.

Step 3. Check ail wheel drive selector valve for binding and proper operation,

If all wheel drive selector valve is binding or not operating

property, replace ali wheel drive selector valve (page 4-240).

If all wheel drive selector valve is operating property and not

binding, go to step 4.

Step 4. Check all wheel drive control cylinder for proper adjustment and operation.

If all wheel drive control cylinder is not adjusted or operating

property, adjust or replace all wheel drive control cylinder

(page 4-243).

If ail wheel drive control cylinder is adjusted and operating

properly, notify direct support maintenance.