© Oct. 2022 6-10 GTZZ18J Operation Manual
PRE-OPERATION FUNCTION TEST
1. With the machine traveling in stowed position,
push upward the drive high/low select switch, the
drive speed shall be switched to high speed, and
the high drive speed indicator light shall be lit.
Note:
• Before the machine traveling in stowed
position, if the drive high/low speed select
switch is left in high speed position, after the
drive function is activated, the machine will
start to run at high speed immediately.
• With the machine traveling in stowed position,
by pushing upward the drive high/low speed
select switch, the machine will start to run at
high drive speed immediately.
Make sure the surrounding area is free of
obstructions or persons before performing the
above operations to avoid colliding with
obstructions or persons. Besides, the operator
shall pay attention to personal safety.
2. With the machine traveling in stowed position, pull
down the drive high/low speed select switch, the
drive speed shall be switched to low speed, and
the high drive speed indicator light shall be off.
Turntable rotation
1. Depress the foot switch and move the main boom
luffing/turntable rotation proportional control
handle to the left, the turntable should rotate
clockwise.
2. Depress the foot switch and move the main boom
luffing/turntable rotation proportional control
handle to the right, the turntable should rotate
counterclockwise.
Note: The turntable rotation speed is in direct
proportion to the stroke of control handle.
Main boom luffing
1. Depress the foot switch and move forward the
main boom luffing/turntable rotation proportional
control handle, the main boom should rise
smoothly.
2. Depress the foot switch and move backward the
main boom luffing/turntable rotation proportional
control handle, the main boom should descend
smoothly, and the buzzer should sound.
Note: The main boom luffing speed is in direct
proportion to the stroke of control handle.
Main boom telescoping
1. Depress the foot switch and move backward the
main boom telescoping proportional control
handle, the main boom should extend smoothly.
2. Depress the foot switch and move forward the
main boom telescoping proportional control
handle, the main boom should retract smoothly.
Note: The main boom telescoping speed is in direct
proportion to the stroke of control handle.
Articulated boom luffing switch
1. Depress the foot switch and move upward the
articulated boom luffing switch, the articulated
boom should rise smoothly.
2. Depress the foot switch and move downward the
articulated boom luffing switch, the articulated
boom should descend smoothly.
Articulated boom telescoping switch
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