Grove Published 3-23-2020, Control # 654-04 3-21
GRT655/655L OPERATOR MANUAL OPERATING CONTROLS
All crane function lock outs are bypassed until one of the
following occurs:
• Bridging Switch is again pressed and released.
• 30 minutes has passed since the Bridging Switch was
initially pressed and the controllers are in the neutral
position.
• Engine is stopped.
RCL Internal Light Bar (Optional)
The Rated Capacity Limiter (RCL) Internal Light Bar
(Figure 3-13) is located on the upper left hand corner of the
crane cab. The RCL Internal Light Bar is an operational aid
that warns a crane operator of approaching overload
conditions that could cause damage to equipment and
personnel.
The lights in the light bar come on in the following manner:
• Green LEDs - when the five green LEDs are lit, the load
being lifted is at approximately 90% of the crane's RCL
programmed capacity.
• Yellow LEDs - when the yellow LEDs are lit, the load
being lifted is between 90% to 100% of the crane’s RCL
programmed capacity.
• Red LED - when the red LED is lit, the load being lifted is
greater than 100% of the crane’s RCL programmed
capacity.
RCL External Light Tower (Optional)
The Rated Capacity Limiter (RCL) External Light Tower
(Figure 3-14) is located on the outside upper right hand
corner of the crane cab. The RCL External Light Tower is an
operational aid that warns a crane operator of approaching
overload conditions that could cause damage to equipment
and personnel.
The lights in the light tower come on in the following manner:
• Green LED - when the green LED is on, the load being
lifted is less than 90% of the crane's RCL programmed
capacity.
• Yellow LED (Constant On) - when the yellow LED is on
(constant), the load being lifted is between 90% to 100%
of the crane’s RCL programmed capacity.
• Yellow LED (Flashing) - when the yellow LED is on
(flashing), the load being lifted is between 100% to 110%
of the crane’s RCL programmed capacity.
• Red LED - when the red LED is on, the load being lifted
is greater than 110% of the crane’s RCL programed
capacity.