TOWING WITH TOWBAR
Personnel must not occupy vehicle in tow. Injury or death may
Do not use towing as a means to start engine of vehicle with automatic transmission.
Damage to automatic transmission of disabled M939/A1/A2 series vehicles will result from towing
unless transmission, transfer case, and PTO are all in neutral. Refer to disabled vehicle
operators manual for towing instructions.
When towing M939/A1/A2 series vehicles with inoperative compressed air system, spring brakes
must be caged prior to towing. Refer to paragraph 3-13.
Maximum towing speed shall not exceed 35 mph (56 km/h) on paved highway or 15 mph (24
km/h) on off-highway surfaces.
When towing M939/A1A2 series vehicles, normal towing procedures
require removal of propeller shaft.
Remove two lifting shackles (3) from front bumper (5) of vehicle to be towed and store in safe place.
Install clevis (2) end of towbar (7) on front bumper shackle brackets (4) and secure in place with clevis
bolt (6) and safety pin (1).