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RT9150E OPERATOR MANUAL OPERATING CONTROLS AND PROCEDURES
Published 2-23-2017, Control # 644-00
The following paragraphs describe the standard and optional
controls and indicators located in the cab. Some machines
may not be equipped with the optional controls shown.
NOTE: Many controls and indicators are integrated into the
ECOS and RCL electronic controllers. Refer to
either the ECOS Control Unit, page 3-17 or RCL
Control Unit, page 3-68 for information on the
controls and indicators in these electronic
controllers.
The cab contains all the controls necessary for crane travel,
parking and performing all craning operations.
OPERATIONAL AIDS
Rated Capacity Limiter System
The EKS 5 or Rated Capacity Limiter (RCL) is an electro-
mechanical sensing system designed to alert the crane
operator of impending capacity when the system has been
properly preset by the operator. The control panel is
mounted in the front console of the operator’s 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.
Two additional features are included within the RCL system:
• Working Range Limitation
• Anti-two-block Device
Working Range Limitation
Refer to Working Range Limitation submenu, page 3-38.
This feature allows the crane operator to describe the
crane’s working area by setting up “virtual walls”. They are
referred to as virtual walls because they exist in the system
and are not real walls. The virtual walls represent obstacles
(i.e. buildings, towers, poles, etc.) in the crane’s working
range. They are set by defining points along the outer limits
of the working area with the tip of the boom. Once the
working area has been defined, the system will provide a
visual and an audible warning if the boom approaches a
virtual wall.
Anti-Two-Block Device
This device is also incorporated into the system to prevent
the hook block or headache ball from coming into contact
with the boom nose or boom extension. This condition will
also cause a lockout of hoist up, boom down, and telescope
out, and also provide a visual and an audible alarm.
Refer to the RCL Control Unit, page 3-68 for more detailed
information on the function of the RCL system.
RCL Boom Alarm (CE Units)
In addition to the audible warning in the cab, a visual RCL
boom alarm is also mounted in the vicinity of the boom flood
light to warn all personnel that a lockout has occurred.
Control Lever Lockout System
The control lever lockout system consists of hydraulic
solenoid valves, located in the directional control valves. The
valves are activated in such a manner as to prevent
worsening the condition, i.e. boom down, telescope out, or
hoist up. The control lever lockout system is used with the
anti-two-block system and/or the RCL system.
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.
CAUTION
When defining virtual wall(s), always allow a safe working
distance to any obstacles. Never work outside a safe
working area as defined by common practice, standards,
and manuals.
WARNING
There are no cutouts associated with the swing angle set
limitation or the work area definition features.
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