Tadano GT-550E-2, Operation And Maintenance Manual

Page: 75 / 100

AML Pre-operational Inspection
Before starting operation, check that the AML works in
good condition, as follows:
1.
Press the check key and make sure that the AML is
in the following conditions:
• Moment display...............All segments are marked up.
• Display panel (1 and 2)...All segments are marked up.
• Working range restriction indicator lamp
........................................All six lamps light up.
• Alarm buzzer...................Sounds continuously.
• Movement toward critical sides
........................................Automatically halted
2.
Press either the set key, display alteration key or
check key to return the display to the normal condition.
3.
Make sure that the display on the display panels con-
forms to the actual crane conditions.
(1) Boom length
(2) Boom angle
(3) Jib angle......shown while jib lift is selected
(4) Real load.....Make sure that the approximate mass of
the hook block while no load is on the
hook block.
◆
The real load is not shown correctly if the lift status
is not registered correctly.
(5) Outrigger state indicative symbol
(6) Front jack symbol
(7) Boom position indicator
◆
If the AML does not work properly, have it checked
and repaired by the nearest TADANO distributor or deal-
er.
T038300E
39
AML (Overload Prevention Device) AML (Overload Prevention Device)
Operating the crane with a malfunctioning
AML could cause the crane to overturn or be dam-
aged. Be sure to perform the pre-operational
inspection on the AML system and start the crane
only after ensuring that the system is operating
properly.
WARNING
%
t
m
max t
m
m
T24045E
Bargraph display
Display panel 1
Display panel 2
Buzz
Check key
°
t
max t
m
m
T24103
3
1
7
6
5
2
4