PARKING BRAKE CANNOT BE ENGAGED OR DOES NOT HOLD VEHICLE.

TM 5-2420-224-10

Malfunction

Test or Inspection

Corrective Action

Step 5. Check power steering V-belt tension.

Belt deflection under thumb pressure should be 3/16-3/8 in. (5-10 mm). If belt is frayed, broken, or

loose, notify unit maintenance.

9. PARKING BRAKE CANNOT BE ENGAGED OR DOES NOT HOLD VEHICLE.

Perform parking brake test.

WARNING

Make sure there are no obstacles or personnel in front of vehicle to prevent

personnel injury.

(a) Park vehicle on level surface.

(b) Fasten seat belt.

(d) Neutralize transmission.

(e) Start vehicle.

(f) Set hand throttle to 700-750 rpm (idle).

(g) Disengage clutch.

(h) Shift group shift lever to Gear Range I.

(i) Shift main shift lever to 4th position and engage intermediate speed control in high position.

(j) Slowly release clutch; engine should stall.

If engine does not stall or vehicle moves, notify unit maintenance.

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