Broderson IC-280-A, Accompaniment To The Installation, Operation And Maintenance Manual

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W A R N I N G
We recommend the CANCEL button and emergency override switch be used with
discretion. Improper or careless use of this switch can cause damage to the crane
and endanger people and property. The operator who uses these overrides in an
emergency should use good judgment.
There is a light on the dashboard to warn that one or more outrigger beams is not fully
extended when using the “On Out and Down” setup on the RCL. Check the light daily when
the outriggers are up and there is no load on the hook, by extending and retracting each
outrigger about three inches. The light should come on when a beam is not completely out.
CRANE CAPACITY
Before lifting loads, the operator must read the Crane Capacity Chart and adhere to the
load capacities and radii of handling given. The information provided on this chart is based
on stability, structural strength, and hydraulic capacity.
To operate the crane safely, the operator must know the weight of the load and handling
devices, and the radius of the lifting operation. The crane must not be loaded beyond the
specifications of the capacity chart, except for test purposes as provided in ASME B30.5
Section 5-2.2. The person responsible for the lift must be sure that the load does not exceed
the crane ratings, at any radius at which the load may be during the entire lifting operation.
The weights of the hooks, blocks, downhaul weights, slings, and other handling devices must
be added with the load.
The Rated Capacity Limiter on the crane is intended to assist the operator in estimating
loads and measuring load radii and to alert the operator to impending overload conditions.
The use of the Rated Capacity Limiter does not replace the requirements of the preceding
paragraph. Verified weights and measured radii must take precedence over the Rated
Capacity Limiter readings. Please read the RCL Operation Manual.
The Rated Capacity Limiter displays a load, load radius, and boom angle that are obtained
from electronic calculations using readings from pressure, length, and angle sensors. These
readings cannot be exact and should be treated as estimates. In general, the smaller the load
and the higher the boom angle, the larger the percent of error.
Be aware that the electronic and mechanical components cannot be 100% fail-safe. Do not
consider the system as a substitute for good judgment, training, experience or accepted safe
operating practices. The operator is solely responsible for operation of the crane. Setting the
Rated Capacity Limiter for the configuration of the crane is necessary before starting a lift. If
incorrectly set, the system will not alert the operator to an impending overload, possibly
resulting in the loss of life or destruction of property.
If the Rated Capacity Limiter is inoperative or malfunctioning, repair or recalibration of the unit
must be done as soon as reasonably possible. The person responsible for lifts must establish
procedures for determining load weights and radii, and conduct the lifts according to the
second paragraph above.
The Rated Capacity Limiter is designed to stop crane functions at the limitations of the
capacity chart. These are: BOOM LOWER, TELESCOPE EXTEND, HOIST RAISE, SWING
LEFT and SWING RIGHT. Great care must be exercised when handling a load near capacity
or near a two-blocking condition. If the boom is being lowered or swung, the load will tend to
swing if the Rated Capacity Limiter stops the boom movement. If the load is moving too fast,
the sudden stopping by the system can cause dangerous load swinging, which can cause
death or injury to personnel, or property damage, by impact with the load or by the crane
tipping.