ROADRANGER RT0613
TRANSMISSION OPERATION
NOTE: CLUTCH OPERATION IS PERFORMED IN THE SAME SEQUENCE AND MANNER AS
PREVIOUSLY DESCRIBED FOR UPSHIFTING AND DOWNSHIFTING STANDARD TRANSMISSIONS.
SHIFT RANGES ARE SELECTED BY THE THREE POSITION RANGE SELECTOR AIR VALVE KNOB
MOUNTED ON THE TRANSMISSION GEAR SHIFT LEVER.
THE BUTTON CONTROLLED
COUNTERSHAFT BRAKE IS USED ONLY TO ASSIST INITIAL GEAR ENGAGEMENT WHEN
VEHICLE IS STANDING STILL.
The RT0613 model transmission has 13 progressive forward speeds and 3 reverse. It consists of a 5
speed front section and a 3 range auxiliary section. Ratios in the front section are used once through LOW range,
once through INTERMEDIATE range and once through DIRECT range of the auxiliary; however, only 3 ratios in
the front section are used when the auxiliary is in the LOW range. This gives a 3-5-5 repeat shift pattern.
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