OPERATING THE MACHINE
GTZZ15J Operation Manual 7-7 © Nov. 2022
boom rotate proportional control handle to extend
or retract the main boom.
4. Depress the footswitch and meanwhile move
leftwards/rightwards the main boom lift/turntable
rotate proportional control handle to rotate the
turntable clockwise or anticlockwise.
5. Depress the footswitch and meanwhile move
upwards/downwards the platform level switch to
level up/down the platform.
FALL HAZARD
The platform level switch can
only be used for slight leveling of
the platform, improper use may
cause the load/occupant to shift
or fall.
6. Depress the footswitch and meanwhile move
leftwards/rightwards the platform rotate switch to
rotate the platform clockwise or anticlockwise.
7. Depress the footswitch and meanwhile move
upwards/downwards the jib boom up/down switch
to raise or lower the jib boom.
8. Depress the footswitch and meanwhile move
leftwards/rightwards the main boom telescope/jib
boom rotate proportional control handle to rotate
the jib boom clockwise or anticlockwise.
To drive:
1. Depress the footswitch and meanwhile move
forward/backward the steer/drive proportional
control handle to drive the machine forward or
backward.
2. Speed increase: slowly move the handle off center.
3. Speed decrease: slowly move the handle toward
center.
4. Stop: return the handle to center or release the
footswitch.
When the boom is in operating position and non-
operating position (high drive speed restricted), the
drive speed of the machine will be restricted.
To steer:
Depress the footswitch and meanwhile move forward
the drive/steer proportional control handle and press
the left/right button on top of the handle to steer left/
right.
To select drive speed:
The machine in non-operating position and with
outriggers fully retracted can run in two drive speed
modes (high/low speed).
1. In the process of driving, push the drive speed
select switch upward to switch the drive speed to
high speed;
2. In the process of driving, push the drive speed
select switch downward to switch the drive speed to
low speed.
TIPPING HAZARD
Drive the machine at low speed when
the machine is tilted.
This function will be restricted in non-operating position
(with the high drive speed mode restricted).
The machine in operating position can only drive at
operating speed, and pushing the high engine/drive
speed enable switch upward will not switch to the high
speed mode.
DRIVING ON A SLOPE
TIPPING HAZARD
• Do not operate the machine on a
slope exceeding the maximum
slope rating (5°).
• Do not drive the machine across a
slope exceeding the maximum
side slope rating (14°).
• Do not drive the machine on a
slope exceeding the machine
gradeability.
Before driving on a slope:
1. Determine the gradeability (climbing ability) of the
machine.
GRADEABILITY:
Uphill: 40%/21°