|
| |
TM 9-2220-270-10
DRIVING - CONTINUED
Highway Driving. When driving conditions permit, maintain the legal highway speed in a gear
range that permits running the engine 10 to 20 percent below governed speed. This is the engine
cruising range and it gives better fuel economy than higher engine speeds. Recommended highway
cruising range is 1650 to 1850 rpm. You may operate in the economy range at full throttle if you
are satisfied with the way the truck performs. However, operating with reserve power makes good
sense on hilly roads, in high winds, and other conditions. Reserve power is gained by operating in
a Iower gear range.
City Driving. Operate the truck in a high gear at low engine rpm to maintain the lawful speed. By
reducing engine speed you are saving fuel and lowering the noise level of the M911 Truck Tractor.
When slowing down for turns end other posted speed zones, stay in your running gear end reduce
enigne rpm to get within the speed limit. Avoid downshifting until you are ready to return to
highway speed. Recommended rpm range for city driving is 1400 to 1600 rpm.
2-73
|
