Analyzing the Chart.

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

d. Analyzing the Chart.

(1) General. After reading charts all the time, tests show that the driver

takes charge of the economical operation of his truck. Charts show if the driver is

driving the truck properly or if he needs some driving instructions. The chart can

be figured out by reading the speed and engine rpm fields daily. The charts shown

in this section show good and bad driving habits.

(2) Good driving speed chart. A good driving speed chart (Fig. 20-7) will

show uniform driving and average speeds. The closer the highest speed reading

comes to the average speed, the more uniform and economical the truck will be driven.

Figure 20-7. Good Driving Speed Chart