Driving downhill without gears engaged

TM 9-2320-211-20-3-2

(5) Driving downhill without gears engaged. This can easily be read on the

speed field. Individual speed peaks (Fig. 20-10) will be seen above the maximum

speed stated in the operating instructions for the truck. This condition can also be

read on the rpm field by looking to see if the engine was idling during this time. If

the engine was connected to the wheels at that time on chart, the rpm field would

show an increase as the speed of the truck increased.

Figure 20-10. Driving Downhill without Gear Engaged