Driving uphill in wrong gear.

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

(6) Driving uphill in wrong gear. This speed field on the chart will not tell

you which gear the truck was driven during this time period. However, the rpm

field (fig. 20-11) will show that during this-time period, the engine was overloaded

at low rpm. This kind of driving will cause major engine damage, and the driver

of the truck must be told of this problem. Driving uphill in the correct gear will

show in the rpm field maximum torque area (fig. 20-12).

Figure 20-11. Driving Uphill in Wrong Gear

Figure 20-12. Driving Uphill in Correct Gear