JLG G6-42A Operator Manual - Manual (Page 29)

Form No. 20036 • G6-42A Owner/Operator Manual
General
This model material handler is equipped with a powershift transmission.
With this type of transmission, the operator simply selects a gear, selects
the direction of travel, releases brakes and depresses the accelerator pedal
to move the handler.
Operation
Gear Selection: A three-speed transmission is used on machines equipped
with the naturally aspirated engine. Each gear is available in both forward and
reverse. Turbocharged engines use a four-speed transmission. These
transmissions have four forward gears and three reverse gears.
Gear selection is accomplished by rotating the twist grip handle on the
transmission control lever. It is best to begin travel in a lower gear, however the
machine will move away from rest in any gear. Upshifts are most smoothly
accomplished by lifting off the throttle pedal when shifting. Caution should
be taken of downshifting to ensure that the ground speed of the material
handler has slowed sufficiently so as not to over-speed the engine.
Select the appropriate gear for the task being performed. Use a lower gear
when transporting a load. Use a higher gear only when traveling longer distances
without a load. When traveling through deep mud, or up slopes, use a lower
gear. Downshift a gear when traveling down a long hill. Use the service brakes,
if necessary, to prevent over-speeding the engine.
Direction of Travel: Direction of travel is selected by moving the transmission
control lever towards the front of the machine for forward travel, and towards
the rear of the machine for reverse travel. Neutral is selected by moving the
transmission control lever to the center position. If neutral is selected while the
machine is moving, the machine will continue rolling in the direction of travel.
Always bring the machine to a complete stop before changing direction of travel.
This will prevent damage to the transmission or torque converter.
Forward or reverse travel can be selected while in any gear. With turbocharged
engine, if reverse is selected while in fourth gear, the transmission will
automatically default to third gear. If forward is selected again, the transmission
will go back to fourth gear.
DRIVE TRAIN
10.0
WARNING !
Bring handler to a complete stop
before shifting transmission
control lever. A sudden change in
direction of travel could reduce
stability and/or cause load to shift
or fall.