NOTES FOR LOAD MOMENT INDICATOR (AML-E2)
WARNING AND OPERATING INSTRUCTIONS
FOR ON RUBBER LIFTING CAPACITIES
1. Rated lifting capacities on-rubber are in pounds and do not
exceed 75% of tipping loads as determined by SAE J765-Crane
Stability Test Code.
2. Rated lifting capacities shown in the chart are based on condition
that crane is set on firm level surfaces with suspension-lock
applied. They are based on actual load radius increased by tire
deformation and boom deflection.
3. If the suspension-lock cylinders contain air,the axle will not be
locked completely and rated lifting capacities may not be
obtainable. Bleed the cylinders according to the operation safety
and maintenance manual.
4. Rated lifting capacities are based on proper tire inflation, capacity
and condition. Damaged tires are hazardous to safe operation of
crane.
5. Tires shall be inflated to correct air pressure.
6. Over front operation shall be performed within 2 degrees in front
of chassis.
7. On-rubber lifting with ”jib” is not permitted. Maximum permissible
boom length is 96.8 ft. (29.5 m).
8. When making lift on-rubber stationary,set parking brake.
9. For creep operation,boom must be centered over front of
machine,slewing lock engaged,and load restrained from slewing.
Travel slowly and keep the lifted load as close to the ground as
possible,and especially avoid any abrupt steering, accelerating or
braking.
10. Do not operate the crane while carrying the load.
11. Creep is motion for crane not to travel more than 200 ft. (60 m) in
any 30 minute period and to travel at the speed of less than 1 mph
(1.6 km/h).
12. For creep operation,choose the drive mode and proper gear
according to the road or working condition.
Tires
29.5–25 34PR
Air Pressure
57 psi. (400 kPa)
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
status.
• 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
registration, the display returns to the crane operation
status.
• 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.
(1) 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° capacities 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 LOAD MOMENT
INDICATOR (AML-E2) is below the 360° lifting capacity.
(2) For creep operation.
• The creep capacities are attainable only when boom is in the
straight forward position of chassis and the over front
position symbol is on. If boom is not in the straight forward
position of chassis, never lift load.
This machine is equipped with an automatic slewing stopping
device. (For the details, see Operation Manual.) But, operate very
carefully because the automatic slewing stop does not work in the
following cases.
• During on-rubber operation.
• When the "P.T.O." switch is set to "OVERRIDE" and the
"OVERRIDE" key switch outside the cab is on.
During crane operation, make sure that the displays on front panel
are in accordance with actual operating conditions.
The displayed values of LOAD MOMENT INDICATOR (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.
LOAD MOMENT INDICATOR (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 LOAD MOMENT INDICATOR (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.
1.
2.
3.
4.
5.
6.
7.
8.
GR-800XL-4 AXLE WEIGHT DISTRIBUTION CHART
GVW
Front
Rear
GVW
Front
Rear
99,800
55,000
44,800
45,270
24,930
20,340
Remove:
1. 7.3 ton (6.6 metric ton) hook block
-400
-600
200
-165
-251
86
2. 80 ton (72.6 metric ton) hook block
-1,200
-2,200
1,000
-540
-998
458
3. Top jib
-700
-1,000
300
-336
-450
114
4. Base jib
-2,000
-3,800
1,800
-867
-1,704
837
5. Counterweight
-9,600
4,200
-13,800
-4,350
1,924
-6,274
Pounds
Kilograms
Base machine
Form No. GR-800-4-00101/US-02
-15-
