Manitowoc Grove GRT880, Руководство оператора

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OPERATING CONTROLS AND PROCEDURES GRT880 OPERATOR MANUAL
3-12
Published 3-25-2020, Control # 643-04
Emergency Stop Switch
The crane Emergency Stop Switch (20) (Figure 3-6) is
located on the cab right console and is used to shut down the
crane’s engine. Push the red button in to shut down the
engine, which illuminates the Emergency Stop icon on the
CCS operator display. Rotate and pull out knob to resume
normal operation.
Level Indicator
The Level Indicator (21) (Figure 3-6) is located on the right
side of the cab by the Emergency Stop Switch. The indicator
provides the operator with a visual aid in determining the
levelness of the crane.
Deadman Switches (Optional) (Dual Axis
Joysticks only)
Deadman Switches (22) (Figure 3-6) are located on the front
of both joysticks. Either of these switches can be used
instead of the seat switch to keep crane functions active.
Hoist High Speed Toggle Switches
The Hoist High Speed Toggle Switches (23) (Figure 3-6) are
thumb operated two-position center spring return switches.
Push and hold switch closest to the operator to change hoist
speed to high – release switch to return hoist speed to
normal. Push and release switch farthest from the operator
to change hoist speed to high – push and release switch
again to return hoist speed to normal.
Horn Button
The Horn Button (24) (Figure 3-6) is located on the upper
front of the right joystick. The button sounds the horn during
crane operations.
Free Swing Button
The Free Swing Button (25) (Figure 3-6) is located on the
upper front of the left joystick. The Free Swing Button
releases the Swing Brake and allows the boom to be
centered over the load.
Cab Door Release Lever
Use the Cab Door Release Lever (26) (Figure 3-6) to open
and close the cab door from inside the cab.
Hoist Rotation Indicators (Not Shown)
Hoist Rotation Indicators (27) (Figure 3-6) for auxiliary and
main hoists are located on top of each hoist joystick (1, 2)
(Figure 3-6). Each indicator is electronically driven by an
input signal from a sensor attached to its related hoist and an
output signal from a control module. Each hoist joystick (1, 2)
pulses when its hoist is running so the operator’s thumb can
sense it.
Additionally, the respective main or auxiliary hoist raise/lower
indicator on the Crane Control System (CCS) display will
illuminate to indicate that the hoist is in operation and in
which direction it is moving.
Seat Switch (Not Shown)
This switch (28) (Figure 3-6) is located within the seat. An
operator must be sitting in the seat, enabling the switch,
before any crane functions can be activated.