Manitowoc Grove GRT655 User Manual

Grove Published 3-23-2020, Control # 654-04 3-19
GRT655/655L OPERATOR MANUAL OPERATING CONTROLS
3
Telescope Control Pedal
The Telescope Control Pedal (4, Figure 3-10) is located in
the middle of the cab floor. Pushing the top of the pedal
extends the boom and pushing the bottom of the pedal
retracts the boom.
Service Brake Pedal
The Service Brake Pedal (5, Figure 3-10) is the second
pedal from the right on the cab floor. Pressing the pedal
applies the service brakes. Braking increases or decreases
proportionately with the amount of foot pressure applied to
the pedal.
Foot Throttle Pedal
The Foot Throttle Pedal (6, Figure 3-10) is located on the
right side of the floor. It controls engine speed which
increases or decreases proportionately with the amount of
foot pressure applied to the pedal.
MISCELLANEOUS CONTROLS AND
INDICATORS
Fuse and Relay Panels
The fuse panel (1, Figure 3-11) is located behind the cab
seat on the cab fuse and relay panel assembly.
Buzzer
The buzzer in the display sounds when the following
conditions exist:
• Engine alarms
• Emergency Stop Switch activated
• Low brake pressure
• High hydraulic oil temperature
• High transmission oil temperature
• Low steer pressure condition (CE Certified cranes)
• Hoist minimum wrap condition (Optional — Standard on
CE Certified cranes)
• Anti-two-Block alarm
Rear Limit Bypass Switch (Non-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 Rear Limit Bypass Switch (1, Figure 3-11) is a
two-position, maintained type key switch located behind the
operator seat.
During maintenance or troubleshooting work, or to recover
the crane, turning the switch clockwise bypasses the
following limiter systems and their crane function lock outs:
• RCL System (boom up/down, telescope extend, hoist
up)
• Anti Two-Block System (boom up/down, telescope
extend, hoist up)
• Third Wrap Limiter System (hoist down)
• Working Range Limiter (WRL) System
WARNING
Overload Hazard!
The Limit Bypass Switch prevents the function lock outs
from activating.
When the Limit Bypass Switch is activated, the operator
must make sure that the crane is not overloaded.
Do not operate the crane with the RCL overridden during
normal operations.
FIGURE 3-11
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Manitowoc Grove GRT655 Specifications

General

Brand	Manitowoc
Model	Grove GRT655
Category	Construction Equipment
Language	English