Operation and Maintenance
52
No platform
movement
The error indicator flashes
in 6 flash sequences
• Failure of one or more fuses
(FU7, 8, 5, 6 or 2)
• Replace the defective fuse.
If the problem persists, call
in After Sales Service
Impossibility
of lowering the
telescopic
arms to its res-
ting point
• The arm compensator is
unlocked
• fold the machine, then re-
lock the compensation (see
Ch 4.4.1.3)
arm compen-
sator unlocks
frequently
• Watertightness or operating
problem with the arm com-
pensator raising circuit
• Fold and immobilise the
machine until a complete
check of the circuit has
been carried out (see After
Sales Service)
No movement
of the telesco-
pic arms or fly
jib
Error indicator flashes in 7
flash sequences
• Error in the arm and fly jib
function coordination re-
lays: KA50
• Replace the KA50 relays
No movement
of the telesco-
pic arms or fly
jib
Error indicator flashes in 7
flash sequences
• Error in the arm and fly jib
function coordination re-
lays: KA51
• Replace the KA51 relays
No movement
of the fly jib te-
lescopic arms
and the fly jib
lowering ac-
tion is disa-
bled
Continuous alarm and error
indicator flashes in 8 flash
sequences
• 70 cm extension beyond
the normal fly jib reach limit
range: serious malfunction
of the fly jib lift or telescopic
hydraulic controls
• Evacuate the user from the
machine and call in After
Sales Service
Ditto, + the en-
gine stops,
and will not
restart.
Continuous alarm and
reach limit indicator lit
• Ditto, but more serious: 100
cm extension beyond the
normal fly jib reach limit ran-
ge
• Evacuate the user from the
machine and call in After
Sales Service
While running
an arm com-
mand
Continuous alarm and error
indicator flashes in 8 flash
sequences
• Serious malfunction of the
arm lift or telescopic hy-
draulic controls
• Evacuate the user from the
machine and call in After
Sales Service
INCIDENTS
PROBABLE CAUSE
SOLUTIONS
Error indicator
6 X
Error indicator
7 X
Error indicator
7 X
Error indicator
8 X
Reach limit indicator
Error indicator
8 X
Содержание HA 41 PX
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