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(6) Boom High/Low Switch
Turn this switch up/down to adjust the height of the
entire boom.
(7) Cross Lever Switch
Operating the lever up and down tilts the boom.
Moving the lever to the left and right opens/closes
the boom. The left and right levers can be operated
independently to perform these operations.
(8) Boom Extension/Retraction Switch
Operating the switch to the left and right
extends/retracts the boom. The left and right levers
can be operated independently to perform these
operations.
Caution
⚫
If the steering wheel is turned with the booms
stored at the lowest position, the tires will
come in contact with the booms and damage
them. Raise and store the booms at the
position where the tires do not come in
contact with the booms when the machine
travels.
⚫
Do not operate the booms while they are
secured on the boom receivers with ropes,
etc. because doing so may damage the
booms.
⚫
The switch can be operated with a small
force. Do not apply an excessive force on the
switch.
(9) Horizontal Control Unit
This maintains the booms in parallel to the field on an
uneven field, while keeping the boom shaking to the
minimum. While traveling on an incline or if the left and
right boom lengths are different, tilt the booms to keep the
booms in parallel to the field.
Reference
⚫
The control unit may not be able to sufficiently
control the machine on an extremely uneven field.
⚫
The unit cannot control the machine sufficiently if
the incline of the path exceeds 3
suddenly.
⚫
The unit does not perform the control function if
the boom on one side or both booms are closed.
⚫
Horizontal control unit lock mechanism
To store the booms securely, lock the horizontal control
unit while traveling. With the booms open, match the
left and right boom lengths. Next, while pulling the lock
lever, turn it in the direction so that it faces down
towards the opposite side, slowly release one hand
from the lever to lock the unit. To unlock the unit,
perform the same operation in reverse order. If a boom
on one side is retracted or the left and right boom
lengths are not the same, the booms will tilt toward the
side on which the boom is longer.
Unlocked
Left cross lever switch
Right cross lever switch
Boom high/low switch
Left boom extension/
retraction switch
Right boom extension/
retraction switch
Lock lever
