Manitowoc Grove GRT8120 User Manual

Grove Published 3-22-2021, Control # 702-02 4-151
GRT8120 OPERATOR MANUAL OPERATING PROCEDURES
4
ECO Mode
Select the ECO Mode icon (1, Figure 4-159) under the User
Settings Menu Group to show the ECO Mode function
screen.
The Economy (ECO) Mode function offers the operator a
convenient way to reduce noise and fuel consumption during
craning operation. ECO Mode does this by automatically
increasing the engine speed to an operator specified engine
working speed when craning functions are operated and
then decreasing the engine speed to idle speeds when no
craning functions are operated.
The ECO Mode function screen (Figure 4-160) allows the
operator to set the ECO Mode function to on or off. The
function screen also allows the operator to specify the
lengths of time of crane function inactivity before the crane’s
engine speed is reduced from the working engine speed to
the two idle speeds.
The ON/OFF icon (1, Figure 4-160) is used to set the ECO
Mode function to on or off.
The Idle Speed 1 Time Delay Setting (2) is used to specify
the period of time the craning functions must be inactive
(controllers in neutral position) before the engine speed is
reduced from the operator specified working engine speed to
the idle speed of 950 rpm.
The Idle Speed 2 Time Delay Setting (3) is used to specify
the period of time the craning functions must be inactive
(controllers in neutral position) before the engine speed is
reduced from the operator specified working engine speed to
the idle speed of 800 rpm. If the hydraulic oil cooling fan is
operating, the crane will reduce the fan speed when the Time
Delay Setting (3) has been met. This reduces fuel
consumption and does not affect cooling performance.
The Current Engine Speed icon (4) indicates the current
engine speed in revolutions per minute.
The Fuel Usage Rate graphic (5) indicates fuel usage rate in
the selected unit of measure.
FIGURE 4-159
10254-4
1
Item Description
1 ON/OFF icon
2 Idle Speed 1 Time Delay Setting
3 Idle Speed 2 Time Delay Setting
4 Current Engine Speed icon
5 Fuel Usage Rate graph
FIGURE 4-160
9741-4
1
2
3
4 5

Manitowoc Grove GRT8120 Specifications

General

Brand	Manitowoc
Model	Grove GRT8120
Category	Construction Equipment
Language	English