© Feb. 2023
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TB20J Plus Operation Manual
OPERATION INSTRUCTIONS
NOTICE
Before switching to high travel speed mode, make
sure the engine (if equipped) is running at high speed.
1. With the machine traveling in non-operating posi-
tion, push upward the high/low drive speed selector
switch, and the travel speed will be switched to high
speed and the high drive speed indicator light will
be on; push the travel control handle to full drive po-
sition, and the machine will travel at the maximum
travel speed.
NOTICE
• Before the machine traveling in non-operating
position, if the high/low drive speed selector
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 non-operating
position, push upward the high/low drive
speed selector switch, and the machine will
start to run at high speed.
2. With the machine traveling in non-operating posi-
tion, push downward the high/low drive speed se-
lector switch, and the travel speed will be switched
to low speed and the high drive speed indicator light
will be out.
3. With the machine in operating position, the machine
can only travel at low speed.
7.10 BOOM MOVEMENTS
Do not position the boom above the horizontal
while driving the machine on surfaces exceeding
the maximum allowable tilt angle.
Perform operation from the ground:
1. Raise the main boom: Move and hold the enable
switch, push upward the main boom luffing switch,
and the main boom will be raised.
2. Lower the main boom: Move and hold the enable
switch, pull downward the main boom luffing switch,
and the main boom will be lowered.
3. Extend the main boom: Move and hold the enable
switch, push the main boom telescoping switch to
the right, and the main boom will be extended.
4. Retract the main boom: Move and hold the enable
switch, push the main boom telescoping switch to
the left, and the main boom will be retracted.
5. Raise the jib boom: Move and hold the enable
switch, push upward the jib boom luffing switch, and
the jib boom will be raised. (if equipped)
6. Lower the jib boom: Move and hold the enable
switch, pull downward the jib boom luffing switch,
and the jib boom will be lowered. (if equipped)
7. Rotate the jib boom clockwise: Move and hold
the enable switch, pull downward the jib boom rota-
tion switch, and the jib boom will rotate clockwise. (if
equipped)
8. Rotate the jib boom counterclockwise: Move
and hold the enable switch, push upward the jib
boom rotation switch, and the jib boom will rotate
anti-clockwise. (if equipped)
Perform operation from the platform:
Note: When performing operation from the platform, the
speed of main boom luffing and telescoping and jib
boom rotating is in direct proportion to the travel dis-
tance of the handle. The shorter the travel distance, the
slower the speed.
1. Raise the main boom: Depress the foot switch,
push forward the main boom luffing/turntable rota-
tion control handle, and the main boom will be
raised.
2. Lower the main boom: Depress the foot switch,
push backward the main boom luffing/turntable rota-
tion control handle, and the main boom will be
lowered.
3. Extend the main boom: Depress the foot switch,
push backward the main boom telescoping/jib boom
rotation control handle, and the main boom will be
extended.
4. Retract the main boom: Depress the foot switch,
push forward the main boom telescoping/jib boom
rotation control handle, and the main boom will be
retracted.
5. Raise the jib boom: Depress the foot switch, push
upward the jib boom luffing switch, and the jib boom
will be raised. (if equipped)
6. Lower the jib boom: Depress the foot switch, pull
downward the jib boom luffing switch, and the jib
boom will be lowered. (if equipped)
7. Rotate the jib boom clockwise: Depress the foot
switch, push the main boom telescoping/jib boom
rotation control handle to the left, and the jib boom
will rotate clockwise. (if equipped)
8. Rotate the jib boom counterclockwise: Depress
the foot switch, push the main boom telescoping/jib
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