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NOTES FOR AUTOMATIC MOMENT LIMITER (AML-E2)

SPEC. SHEET NO. GR-1000E-4-00101/EX-01

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GR-1000EX-4 AXLE WEIGHT DISTRIBUTION CHART

Set AML select keys in accordance with the actually operating
crane conditions and don't fail to make sure, before crane
operation, that the displays on front panel are correct.
When operating crane on outriggers:

• Set “P.T.O.” switch to “ON”.
• Press the outrigger state select key to register for the

outrigger operation. If the display agrees with the actual
state, press the set key to register. After the completion of
the registration, the display returns to the crane operation
stataus.

• Press the lift state select key to register the lift state to be

used (single top/jib/boom).

• Each time the lift state select key is pressed, the display

changes. If the display agrees with the actual state, press
the set key to register. After the completion of the registra-
tion, the display returns to the crane operation stataus.

• When erecting and stowing jib,select the status of jib set

(Jib state indicative symbol lights up).

When operating crane on-rubber:

• Set “P.T.O.” switch to “ON”.
• Press the outrigger

state select key to register for the

on-rubber operation. Each time the outrigger state select
key is pressed, the display changes. Select the creep
operation, the on-rubber state indicator symbol lights up.

• Press the lift state select key to register the lift state.

However, pay attention to the following. For stationary
operation.

• The front capacities are attainable only when the over front

position symbol comes on. When the boom is more than 2
degrees from centered over front of chassis, 360° capaci-
ties are in effect.

• When a load is lifted in the front position and then slewed

to the side area, make sure the value of the AUTOMATIC
MOMENT LIMITER (AML-E2) is below the 360

lifting

capacity.

This machine is equipped with an automatic slewing stopping
device. (For the details, see Operation and Maintenance
Manual.) But,operate very carefully because the automatic
slewing stop does not work in the following cases.

• During on-rubber operation.
• When the AML emergency operation switch is set to “ON”.

During crane operation, make sure that the displays on front
panel are in accordance with actual operating conditions.
The displayed values of AUTOMATIC MOMENT LIMITER
(AML-E2) are based on freely suspended loads and make no
allowance for such factors as the effect of wind, sudden
stopping of loads, supporting surface conditions, inﬂation of
tire,operating speed, side loads, etc. For safe operation, it is
recommended when extending and lowering boom or slewing,
lifting loads shall be appropriately reduced.
AUTOMATIC MOMENT LIMITER (AML-E2) is intended as an
aid to the operator. Under no condition should it be relied
upon to replace use of capacity charts and operating
instruction. Sole reliance upon AUTOMATIC MOMENT
LIMITER (AML-E2) aids in place of good operating practice
can cause an accident. The operator must exercise caution to
assure safety.
The lifting capacity differs depending on the outrigger
extension width and slewing position. Work with the capacity
corresponding to the outrigger extension width and slewing
position. For the relationship among the outrigger extension
width, slewing position and lifting capacities, refer to the
working area charts.