Manitowoc Grove GRT655L User Manual

OPERATING CONTROLS GRT655/655L OPERATOR MANUAL
3-20 Published 3-23-2020, Control # 654-04
• Carrier Avoidance System
• -29°C Temperature Limiter System (optional)
The following indicators come on to indicate the limiters are
bypassed:
• Bypass 3 Pressed Indicator is on (3, Figure 4-90)
• RCL Bypass Active Indicator is on (2, Figure 4-90)
• RCL Bypass Status Indicator is on (1, Figure 4-90)
• RCL Shutdown Warning Indicator is flashing
(5, Figure 3-5)
• Anti-two-block Indicator is flashing (7, Figure 3-5)
• Third Wrap Indicator is flashing (29, Figure 4-18 and
Figure 4-19)
• Working Range Limiter (WRL) Indicator is flashing (35,
Figure 4-18 and Figure 4-19)
• Low Boom Angle Indicator is flashing (27, Figure 4-18
and Figure 4-19)
• -29°C Temperature Limiter Indicator is flashing (21,
Figure 4-18 and Figure 4-19)
All craning functions locked out are bypassed while the key
switch is in the clockwise position.
Overriding the RCL with this switch should only be done by a
qualified operator or technician.
NOTE: Before powering up the crane, make sure the RCL
Override Switch is in the Normal (not Override)
position to prevent an error code.
Bridging Switch and Indicator (CE Certified
Cranes)
The Rated Capacity Limiter (RCL) system, when
programmed accurately, will lock out the following crane
functions—boom up/down, telescope extend, and hoist up—
when a lift is attempted at or above the crane's capacity, or
when a two-block condition exists. Locking out these
functions prevents the overload or two-block condition from
worsening.
The Bridging Switch is located inside a key-locked
single-door enclosure (1, Figure 3-12) attached to the
outside rear of the operator's cab. The switch is a
two-position momentary rocker switch.
During maintenance or troubleshooting work, or to recover
the crane, pressing and releasing the switch bypasses the
following limiter systems and their crane function lock outs:
• RCL System (boom up/down, telescope extend, hoist
up)
• Working Range Limiter (WRL) System
• Carrier Avoidance System
The following indicators come on to indicate the limiters are
bypassed:
• Bypass 3 Pressed Indicator is on (only when pressed
and held) (3, Figure 4-90)
• RCL Bypass Active Indicator is on (2, Figure 4-90)
• Working Range Limiter (WRL) Indicator is on (35,
Figure 4-18 and Figure 4-19)
• Low Boom Angle Indicator is flashing (27, Figure 4-18
and Figure 4-19)
Upon pressing the Bridging Switch, the swing left/right
function pressure is reduced to 25% and the boom down,
hoist up, and telescope extend function speeds are reduced
to 15% when actuated.
Overriding the RCL with this switch should only be done in
an emergency.
WARNING
Overload Hazard!
The Bridging Switch prevents the function lock outs from
activating.
When the Bridging Switch is activated, the operator must
make sure that the crane is not overloaded.
Do not operate crane with RCL overridden during normal
operations.
FIGURE 3-12
7649-36
1

Manitowoc Grove GRT655L Specifications

General

Brand	Manitowoc
Model	Grove GRT655L
Category	Construction Equipment
Language	English