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TM 9-2320-270-10
BEING TOWED - CONTINUED
4. Push in disabled M911 Truck Tractor PARKING BRAKE control (1) to release park-
ing brake.
5. Place disabled tractor auxiliary transmission shift lever (2) in neutral.
6. Push in towina vehicle TRAILER AIR SUPPLY control to charge the air system of
the disabled M911 Truck Tractor.
Disabled tractor service brakes and brake lights will operate when tow
vehicle service brakes are applied.
If air is not available to disabled Tractor, it maybe necessary to manually
release spring brakes or taw with tandem axles lifted off the ground.
7. Release tow vehicle PARKING BRAKE.
Front Axle Lifted Off the Ground
WARNING
If your vehicle is to be towed, apply parking brake and place chocks
in front of wheels prior to hook-up of tow bar and prior to discon-
necting tow bar. Work between wrecker or towing vehicles and the
disabled vehicle with extreme care. Vehicles having air actuated
spring brakes and an inactive air system, uncage the spring brakes
before the vehicle is separated from the towing vehicle. Failure to
follow this warning may result in serious injury or death.
CAUTION
When towing the M911 Truck Tractor with the front axle lifted off the
ground it is necessary to disconnect the universal joint at the input to for-
ward tandem axle to prevent damage to the planetary differential in the
transfer case.
NOTE
The M911 Truck Tractor may be towed up to 1/2 mile (0.8 kilometer) at
speeds up to 10 mph (16 km/h) without disconnecting the driveline. If this
is done, the auxiliary transmission must be in neutral position.
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