OPERATING CONTROLS AND FEATURES GRT9165 OPERATOR MANUAL
3-12 Published 7-23-2020, Control # 668-02
Quickly push and release top of switch to increase engine
speed to high idle. Quickly push and release bottom of
switch to decrease engine speed to low idle.
Push and hold top of switch to incrementally increase engine
speed. Push and hold bottom of switch to incrementally
decrease engine speed. Release switch when desired
engine speed is reached.
With engine speed at low idle, push and hold bottom of
switch until engine stops. To restart engine, push and hold
top of switch until engine starts.Unlike the Ignition Switch, the
Increment/Decrement – Start/Stop Switch can be used to
stop the engine without disconnecting power to the electrical
systems. Thus, using this switch to start and stop the engine
during short breaks in craning operation saves time, as the
ODM and RDM remain fully powered and programmed.The
Increment/Decrement – Start/Stop Switch is also used to set
the engine speed when using the Economy (ECO) Mode
feature. Refer to ECO Mode, page 4-153 for details of its
operation.
Engine Wait-To-Start Indicator
The Engine Wait-To-Start Indicator (10, Figure 3-9) is located
on the right overhead control panel.
When the Ignition Switch (7, Figure 3-2) is turned to the
RUN (I) position, the Engine Wait-to-Start Indicator will come
on if the outside ambient temperature is low and preheating
of the air inside the air-intake manifold is required.
Do not start the engine until the Wait-to-Start Indicator goes
off (refer to Start-Up Procedure, page 4-8).
Engine Brake Switch (Optional)
The Engine Brake Switch (11, Figure 3-9) is located on the
right overhead control panel.
The three-position switch (Off–Low–High) controls the
engine Variable Geometry Turbo (VGT) brake.
Push top of switch (High) to cause the engine brake to
operate with full braking action. Set switch to its center
position (Low) to cause the engine brake to operate at its
intermediate engine braking action. Push bottom of switch to
set engine brake to off.
Use engine brake to help slow the crane when traveling
down a slope. Using the engine brake will help reduce the
risk of the service brakes overheating.
Remote Control Enable/Disable Switch
The Remote Control Enable/Disable Switch (12, Figure 3-9)
is located on the right overhead control panel.
The switch is a two-position maintained switch that enables
and disables the Remote Control Unit.
Push top of switch to enable the Remote Control Unit. Push
bottom of switch to disable the Remote Control Unit.
When the Remote Control Unit is enabled, the Remote
Control Unit Enabled Indicator shows green in the Status Bar
(6, Figure 4-74) of the Operator Display Module (ODM).
Always position switch to the disabled position when Remote
Control Unit is not in use.
If Remote Control Unit is enabled and one of the crane
function enable/disable switches in the cab is pushed, the
Remote Control Unit will be disabled.
Refer to Remote Control Unit, page 3-56 for an overview of
the Remote Control Unit. Refer to Using the Remote Control
Unit, page 4-53 for information pertaining to the operation of
the Remote Control Unit.
Crane Function Enable/Disable Switch
The Crane Function Enable/Disable Switch (13, Figure 3-9)
is located on the right overhead control panel.
The switch is a momentary switch that lets the operator
enable and disable the default crane functions that are
operated by the controllers on the armrests. These default
crane functions include auxiliary hoist, swing, main hoist,
and boom lift.
A crane function must be enabled before the function will
operate.
The left controller operates the auxiliary hoist and swing
functions. The right controller operates the main hoist
function on one axis and the boom lift, telescope, and
optional luffing boom extension function on the other axis.
Only one of the three functions – boom lift, telescope, or
luffing boom extension – can be enabled at a time.
An individual Enable/Disable Switch is provided to enable
and disable each of the different crane functions.
Alternatively, the Crane Function Enable/Disable Switch can
be used to quickly enable the four default crane functions at
the same time.
Push and release Crane Function Enable/Disable Switch
one time to enable the four default crane functions. Push and
release the switch again to disable the crane functions that
are currently enabled.
Always disable all
crane functions to prevent accidental
operation, such as bumping the controllers while roading, or
any other similar operation.
Enabling craning functions with the Crane Function
Enable/Disable Switch will cause the engine speed to
increase to 1200 rpm. Disabling craning functions with the
switch will cause the engine speed to decrease to 750 rpm.
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