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4. The interlock between stabilizeers and arms: when the stabilizers are lifted up check
that the arm manoeuvre can’t be execute. When the stabilizers are set to the ground
and the boom not in transport position, try to turn the key on the stabilizers symbol
and check that the stabilizers do not move.
5. The outreach limiting system in this way:
set the stabilizers in the narrowest hole
With the boom horizontale between the stabilizers 3 and 4, extend the boom and
verify that the maneuver stops when the outreach limiting system intervenes.
In this condition the red lamp on the ground control panel must turn on and the
extention and the lowering of the boom should not work.
6. The emergency arrest buttons are positioned in every command position. By arming
the emergency button, every machine movement has to becomes disabled.
7. The sealing of the main boom locking valve as following: with the engine off and
the boom in transport position (pay attention to the cage not touching the ground),
open the hydraulic distributor cover, action the boom lowering lever (see sticker) and
check if the boom remains motionless. If there’s any movement, even slow, of the
boom, do not use the machine
8. that moving the boom to the rest position (in the center, lowered and with the
extensions completely in) the green light for the stabilizers permission is turned on.
Verify also that in case of one condition is not satisfi ed (in the center, lowered and
with the extensions completely in) the light turns off and the stabilizers movements
doesn’t work.
IMPORTANT
It is recommended not to start the machine before checking that the command
devices are functioning.
If the machine is used rarely, the check must be done before the machine is
started.
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