Shifting the Transmission. (Cont)

TM 5-2420-224-10

The main shift lever (1) shifts all speeds no matter what gear range or intermediate speeds are preselected. The

group shift lever (2) has three shifting functions: Gear Range I-low group; Gear Range II-high group; and R-

reverse. Intermediate speeds are main transmission reduction speeds and can be engaged and disengaged while

driving either forward or in reverse. Position of main shift lever is not important. Shift gears only when clutch is

fully depressed. Shift to reverse only with vehicle stopped and clutch depressed.

WARNING

Select proper gear before negotiating severe upgrade or downgrade. Do not de-

clutch on severe grade. Do not slip clutch during front loader operations. Failure to

do so could result in personal injury.

Never shift transmission into neutral when traveling downhill. Control of vehicle

could be lost, resulting in serious personal injury and/or damage to drivetrain when

shifting back into gear.

(1) Down-Shifting. A down-shift from one gear to a lower one can be made at any time to maintain an efficient

engine speed. Maintain one gear when traveling up a hill and shift only when past crest.

(2) Up-Shifting. An up-shift from one gear to a higher one can be made at any time. The most efficient use of

each gear range is achieved when minimum engine rpm of 1600 is reached in the gear range before shift is

made.

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