SPECIFICATIONS
20
Supplemental Data
1. Rated loads included in the charts are the maximum
allowable freely suspended loads at a given boom
length, boom angle and load radius, and have been
determined for the machine standing level on firm
supporting surface under ideal operating conditions.
The user must limit or de-rate rated loads to allow for
adverse conditions (such as soft or uneven ground,
out-of-level conditions, wind, side loads, pendulum
action, jerking or sudden stopping of loads,
inexperience of personnel, multiple machine lifts, and
traveling with a load).
2. Rated loads do not exceed 75% of minimum tipping
loads. Rated loads based on factors other than
machine stability such as structural competence are
shown by asterisk * in the charts.
3. The machine must be reeved and set-up as stated in
the operation manual and all the instruction manuals if
these manuals are missing, obtain replacements.
•
The crane must be leveled to within 1% on a firm
supporting surface.
•
Boom backstops are required for all boom length.
•
Gantry must be fully raised position for all
operations.
4. Do not attempt to lift where no radius on load is listed
as crane may tip or collapse.
5. Attempting to lift more than rated loads may cause
machine to tip or collapse. Do not tip machine to
determine rated loads.
6. Weight of hooks, hook blocks, slings and other lifting
devices are a part of the total load. Their total weight
must be subtracted from the rated load to obtain the
weight that can be lifted.
7. When lifting over boom point with jib or auxiliary
sheave, rated loads for the boom must be deducted
as shown below.
Jib Length Aux Sheave 30 ft
40 ft
50 ft
60 ft
Deduct (lbs)
320
2,400 3,200 4,200 5,200
8. The total load that can be lifted by jib is limited by
rated jib loads.
9. Boom lengths for jib mounting are 80 ft (24.4 m) to
180 ft (54.9 m)
10. The total load that can be lifted by the auxiliary
sheave is the value for 320 lbs deducted from rated
load for the boom (without auxiliary sheave installed);
however, the auxiliary sheave rated load should not
exceed 17,000 lbs.
11. Boom lengths that can attach auxiliary sheave are from
40 ft (12.2 m) to 190 ft (57.9 m).
12. The boom should be erected over the front of the
crawlers, not laterally. When lifting from or lowering to the
ground the boom at length of 180 ft (54.9 m) with jib, the
blocks for erections must be placed at the end of the
crawlers.
13. Least stable position is over the side.
14. Maximum hoist load for number of reeving parts of line for
hoist rope.
Maximum Load for Main Boom
No. of Parts of line
1
2
3
4
5
Maximum Loads (lbs)
17,000 34,000 51,000 68,000 85,000
No. of Parts of line
6
7
8
9
10
Maximum Loads (lbs) 102,000 119,000 136,000 153,000 170,000
Maximum Load for Fixed Jib
No. of Parts of line
1
2
Maximum Loads (lbs)
17,000 24,000
Maximum Load Auxiliary Sheave
No. of Parts of line
1
Maximum Loads (lbs)
17,000
15. Rated loads listed apply only to the machine as originally
manufactured and designed by KOBELCO CRANES CO.,
LTD. Modifications to this machine or use of equipment other
than that specified can reduce operating capacity.
16. Designed and rated to comply with ANSI Code B30.5.