How to read a capacity chart – JLG G9-43A (9151-4003) Operator Manual User Manual
Page 38

12.3
How to read a Capacity Chart
When reading the capacity chart you must check to be sure the correct model
number is listed. (See figure 12-5) The next thing to look for is that the part
number of your attachment is listed under the “Use With” section.
Identify and find the amount of boom extension required, along with the angle
of the boom. Trace the boom extension arc down until it intersects with the
appropriate boom angle. If the intersection of the boom extension arc and the
boom angle line occur within a weight region, the value within that region is
the maximum capacity for that particular lift. If the intersection occurs on a
bold line separating capacity regions, the smaller of the two values must be
used. The regions are clearly marked with heavier outlines as shown on page
12.4. If you do not have the correct capacity chart for your machine and/or
attachment, contact your Distributor or Gradall to order one.
Example:
A contractor has purchased a G9-43A with the 48” Slope Piler Carriage
Attachment. (See figure 12-5) He knows his attachment may be used with
this model since the attachment part number, 9140-5101, matches the capacity
charts located in the operators cab. He also knows that the Capacity Chart is
correct since it is clearly marked for use with a G9-43A and that the attachment
he is using is listed at the bottom by part number. He has determined the
weight of the load to be lifted is 900 lbs. and that he needs to place the load at
a boom extension of 6 at a boom angle of 20°. By tracing the boom extension
arc down to where the 20° line intersects it, the contractor can see that the
maximum weight he can lift is 1100 lbs. In this case, he may lift the load.
Figure 12-4:
Where to look on the machine
FORK WEIGHT
STAMP
BOOM
EXTENSION
NUMBER
BOOM ANGLE
INDICATOR
ATTACHMENT
IDENTIFICATION
PLATE
MACHINE SERIAL
NUMBER PLATE
(RIGHT WALL)
9114-3282
STAY CLEAR OF PINCH POINT AREA
ANYTIME ENGINE IS RUNNING.
BEING IN PINCH POINT AREA COULD
CAUSE SERIOUS INJURY OR DEATH.
9114-3282
STAY CLEAR OF PINCH POINT AREA
ANYTIME ENGINE IS RUNNING.
BEING IN PINCH POINT AREA COULD
CAUSE SERIOUS INJURY OR DEATH.
DO NOT GO NEAR LEAKS
C
10814B
* High pressure oil easily punctures skin causing serious injury, gangrene or death.
* If injured, seek emergency medical help. Immediate surgery is required to remove oil.
* Do not use finger or skin to check for leaks.
* Lower load or relieve hydraulic pressure before loosening fittings.
9114-3283
NO RIDERS PERMITTED ON HANDLER.
OPERATOR ONLY IN MACHINE
WHILE RUNNING.
RIDERS COULD FALL OFF MACHINE
CAUSING SERIOUS INJURY OR DEATH.
9114-3286
DIESEL FUEL IS FLAMMABLE
EXTINGUISH ALL OPEN FLAME AND
SMOKING MATERIALS WHEN REFUELING
INJURY OR DEATH COULD RESULT
FROM FIRE.
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** unknown **
** unknown **
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2
NO
1
R
7733-3027