2-19
WARNING
We recommend the 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 the switch in an emergency should
use good judgment.
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 relieve the operator of the
responsibility of operating the crane safely by existing regulations. Verified weights and
measured radii must take precedence over the Rated Capacity Limiter readings.
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, and the person responsible for lifts
must establish procedures for determining load weights and radii and conduct the lifts
according to the Crane capacity Chart section of this manual.
The Rated Capacity Limiter is designed to stop crane functions that could cause an
overload or two blocking. These are: BOOM LOWER, TELESCOPE EXTEND and
HOIST RAISE. Great care must be exercised when handling a load near capacity or
near a two-blocking condition. If the boom is being lowered, 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.
WARNING
The Rated Capacity Limiter can suddenly stop the boom lower function, causing
the load to bounce or swing. Use great care when handing a load near capacity
limits or near a two-blocking condition.
Summary of Contents for IC-20-1J
Page 6: ...1 2 DIMENSIONS AND ORIENTATION IC 20 1J Courtesy of Crane Market...
Page 7: ...1 3 TURNING DIMENSIONS Courtesy of Crane Market...
Page 25: ...2 11 Courtesy of Crane Market...
Page 26: ...2 12 Courtesy of Crane Market...
Page 36: ...Courtesy of Crane Market...
Page 44: ...3 8 IC 20 LUBRICATION CHART Courtesy of Crane Market...
Page 48: ...3 12 JIC SCHEMATIC Courtesy of Crane Market...
Page 50: ...3 14 STEERING SYSTEM Courtesy of Crane Market...
Page 52: ...3 16 IC 20 PROPULSION SYSTEM Courtesy of Crane Market...
Page 62: ...Courtesy of Crane Market...
Page 63: ...Powered by TCPDF www tcpdf org Courtesy of Crane Market...