PRE-OPERATION FUNCTION TEST
TB18 Plus&20J Plus Operation Manual 6-11 © Apr 2022
Main boom up/down
1. Depress the footswitch and move forward the
main boom lift/turntable rotate proportional control
handle, the main boom should lift smoothly
without shaking or abnormal noise.
2. Depress the footswitch and move backward the
main boom lift/turntable rotate proportional control
handle, the main boom should lower smoothly
without shaking or abnormal noise, and the
buzzer should sound.
Note: The main boom up/down speed is in positive
proportion to the stroke of control handle.
Main boom telescope
1. Depress the foot switch and move backward the
main boom telescope/jib rotate proportional
control handle, the main boom should extend
smoothly without shaking or abnormal noise.
2. Depress the foot switch and move forward the
main boom telescope/jib rotate proportional
control handle, the main boom should retract
smoothly without shaking or abnormal noise.
Note: The main boom telescope speed is in positive
proportion to the stroke of control handle.
Jib rotate switch (not used)
1. Depress the foot switch and move leftwards the
main boom telescope/jib rotate proportional
control handle, the jib should rotate clockwise.
2. Depress the foot switch and move rightwards the
main boom telescope/jib rotate proportional
control handle, the jib should rotate
counterclockwise.
Note: The jib rotate speed is in positive proportion to
the stroke of control handle.
Platform level switch
FALL HAZARD
The platform leveling function is only
used for slight adjustment of the
platform. Improper operation may
result in unintended movement or fall
of the load/occupants.
1. Depress the footswitch and move upwards the
platform level switch, the platform should level up.
2. Depress the footswitch and move downwards the
platform level switch, the platform should level
down.
Platform rotate switch
1. Depress the footswitch and move leftwards the
platform rotate switch, the platform should rotate
clockwise.
2. Depress the footswitch and move rightwards the
platform rotate switch, the platform should rotate
counterclockwise.
Jib up/down switch-TB20J Plus only
1. Depress the footswitch and move upwards the jib
up/down switch, the jib boom should go up.
2. Depress the footswitch and move downwards the
jib up/down switch, the jib boom shall go down,
and the buzzer should sound.
Emergency power switch
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