SECTION 2 -- CONTROLS, INSTRUMENTS AND OPERATION
2--73
24 x 24 DUAL COMMAND TRANSMISSION
Dual Command transmission has an hydraulically
operated clutch pack allowing the operator to select
underdrive in any forward or reverse gear while on
the move. This effectively increases torque by 22%,
reduces tractor speed by approximately 18%.
An optional reduction gear set (creeper gears) offers
a further 8 ratios, forward and reverse.
Main Shift Lever
The main transmission lever (1) is provided with
electrical push buttons to actuate the Dual
Command function. Operation and function is
otherwise identical to the 12 x 12 transmission.
Underdrive is hydraulically engaged, the valve being
actuated by a solenoid controlled by push buttons (2)
and (3) on the main gear shift lever.
Press the lower switch (3) to engage Underdrive
(tortoise symbol). Press the upper switch (2) (hare
symbol) to disengage Dual Command and return to
direct drive.
119
When direct drive is engaged, the green indicator
light on the instrument panel, which has a ‘hare’
symbol, illuminates to indicate that Dual Command
is in direct drive.
IMPORTANT: A tractor with Dual Command
transmission must not be tow-started. See ‘Starting
the Tractor with Jump Leads’ in section 3.
WARNING
Always engage the parking brake before
dismounting from the tractor. Dual Command will not
prevent the tractor from rolling when the engine is
shut off.
WARNING
To prevent inadvertent tractor movement, take care
to avoid accidental contact with the gearshift levers.
Always stop the engine, firmly apply the parking
brake and place all gear shift levers in neutral before
leaving the tractor.
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