Gehl 383Z, Руководство оператора

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Printed in U.S.A. 3-21 918196/EP0913
Operating Instructions
Joystick Controls
Extending and retracting the cylinders (boom, arm and
bucket) are controlled by the joysticks located on the
consoles attached to the operator’s seat. See
“Equip-
ment and Controls” on page 3-2
for control configura-
tions.
Note: The joystick controls are pilot-operated. The far-
ther the controls are moved from center, the faster the
machine will function.
Hydraulic Swivel Unit Brake
The upper carriage’s rotation is sufficiently braked by
moving the control lever back to the initial position.
Moving the control lever in the opposite direction
brakes the upper carriage with full hydraulic pressure.
Mechanical Stop Brake
A multi-disc brake integrated into the rotation drive has
an additional mechanical brake effect with a time
delay. This brake is used to stop the swivel unit from
rotating in any position.
Operating Precautions
DO NOT
use machine travel or swing to provide addi-
tional breakout force when the bucket is in the ground.
DO NOT
jam the bucket into the ground and use the
weight of the machine to provide additional breakout
force.
IMPORTANT
Hydraulic swivel unit brake function is not
optimal if the hydraulic system has not
reached operating temperature.
DANGER
• DO NOT push down with the dozer blade
to elevate the front end of the tracks.
This will cause the machine to become
unstable.
• DO NOT excavate underneath the
machine.
• Always be sure that there is adequate
support when working near trenches or
drop-offs. Be aware of conditions that
could cause the trench/drop-off wall to
collapse, resulting in risk of injury or
death.
• Do not position the machine directly
underneath structures during demoli-
tion. Falling objects or structure col-
lapse could cause severe damage or
personal injury.
• Be sure that there is the proper clear-
ance from overhead electrical lines.
• Be sure that all underground electrical
power and gas supply lines are clearly
marked and avoided.
WARNING
• DO NOT rest your feet on the travel ped-
als during normal machine operation.
Unexpected machine movement could
occur in this situation.
• When working close to an excavated
edge, be sure that the ground the
machine is sitting on is solid. Keep the
travel motors to the rear. See Figure 3-29.