OPERATING CONTROLS AND PROCEDURES RT9130E-2 OPERATOR MANUAL
3-48 Published 3-1-2018, Control # 559-03
To raise the jib to 0 degree offset for stowage, the rated
capacity limiter (RCL) system must be overridden. See the
manufacturer’s RCL Operator manual supplied with the
crane for instructions.
To raise the jib at the remote stations, press the switch at the
jib adapter or the switch at the head of the base section
(Figure 3-22).
Lowering the Hydraulic Jib
.
The Luffing Jib On/Off Switch must be in the On position.
Push the Luffing Jib Raise/Lower Switch to the Lower
position and hold until the jib is lowered to the desired
position or a switch-off point is reached.
To lower the jib at the remote stations, press the switch at the
jib adapter or the switch at the head of the base section.
OPERATIONAL AIDS
Rated Capacity Limiter (RCL) System
The Rated Capacity Limiter (RCL) is an electro-mechanical
sensing system designed to prevent the crane from
supporting a load outside the limits of the permitted
configurations of the load capacity charts when the system
has been properly preset by the operator. The control panel
is mounted in the front console of the operator cab. When an
overload condition is sensed, the system provides the
operator with a visual and audible warning, and locks out the
control levers to prevent lowering the boom, extending the
boom, or raising the main or auxiliary hoist cables.
Three additional features are included within the RCL
system:
• Swing Angle Set Limitation
• Work Area Definition
• Anti-two Block Device
Swing Angle Set Limitation allows left and right swing
angle to be preset. When the preset angle is reached, the
system will provide an audible warning.
WARNING
When lowering the jib, simultaneously let out the hoist
cable to prevent two-blocking the jib sheave and the hook
block or headache ball.
Anti-Two Block
Assembly
FIGURE 3-22
6217-3
6217-2
Retainer Pin
Mounting Brackets
Remote Switch Station
Remote Switch Station
6217-1
RCL Control Box
WARNING
Electronic equipment on this crane is intended as an aid
to the operator. Under no condition should it be relied
upon to replace the use of capacity charts and operating
instructions. Sole reliance upon these electronic aids in
place of good operating practices can cause an accident.
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