Fifth Wheel - TM-9-2320-273-100132

TM 9-2320-273-10

c. If truck is parked on normal surfaces, parking brakes will provide sufficient hold-

ing force.

2-16. Fifth Wheel

The M915 line haul tractor is equipped with a 36-inch fore and aft oscillating fifth wheel

for use with a 2-inch kingpin. The single oscillating fifth wheel will pitch 15 degrees for-

ward and 10 degrees aft. It is rated at 40,000 Ibs. (18,144 kg) vertical load and 150,000

Ibs. (68,000 kg) drawbar pull. There are two manual kingpin lock release handles on the

right side of the fifth wheel as shown below. The primary release handle must be pulled

first before releasing the secondary handle to uncouple the trailer.

The M916 and M920 equipment transporter tractors are equipped with a 36 inch four-

way oscillating fifth wheel for use with a 3.5 inch kingpin. it is rated at 70,000 lbs.

(31,752 Kg) vertical load and 200,000 Ibs. (90,720 Kg) drawbar puII. There are two

manual kingpin lock release handles on the left side of the fifth wheel as shown

below. The secondary release handle must be pulled first before releasing the

primary handle.