110
MAINTENANCE
TROUBLESHOOTING
Error and display messages
Message
Causes
Solutions
Boom height
Movement on wheels was attempted
with “hare” mode activated and boom
height greater than 3 m
Lower the telescopic boom or activate
the “tortoise” mode
Boom angle
Movement on wheels was attempted
with “hare” mode activated and boom
angle greater than 35°
Lower the telescopic boom or activate
the “tortoise” mode
Turret rotation angle
Stabilisers lift command with turret
not aligned
Position the turret at 0° before
activating the stabilisers lift command
Movement block by load limiter
Hydraulic movement imparted at load
chart limit
Error in safety system
Retract and/or lift the boom to
restore the load to safety
Check errors in alarms page
Double movement not allowed
Simultaneous actuation of two
hydraulic movements (e.g. boom and
stabilisers) not allowed
Carry out the hydraulic movements
separately
Stabilisers microswitch error
Inconsistency between main switch of
stabilisers and redundant
Check errors in alarms page
Boom ascent limit stop
Mechanical limit stop of boom ascent
has been reached
Do not insist with the command
Parking brake applied
Attempt to move on wheels with
parking brake applied
Deactivate the parking brake
Platform height limitation
Height of lift platform above ground
excessive for movement on wheels
Operate the vehicle on wheels with
the platform within the safety limit of
3 m height from the ground
Insert accessory block pin
Shear pin not inserted with lift
platform fitted
Shear pin not detected
Insert the shear pin
Check the shear pin detection switch
Axle not aligned
Front/rear axle not centred
Align front and/or rear wheels
correctly.
Check axles alignment sensors
Levelling in progress
Warning of levelling operation on
stabilisers in progress
No action required
Summary of Contents for RTH 4.18
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Page 27: ...SECTION ON PRODUCT INFORMATION 27 DIMENSIONS RTH 4 18 RTH 5 18 ...
Page 28: ...28 SECTION ON PRODUCT INFORMATION RTH 5 21 RTH 5 23 ...
Page 29: ...SECTION ON PRODUCT INFORMATION 29 RTH 5 25 RTH 6 21 ...
Page 30: ...30 SECTION ON PRODUCT INFORMATION RTH 6 23 RTH 6 25 ...
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