52
iCON grade, Calibrating the System
3.3
Manual Calibration of Machine Hydraulics
General
The calibration of the machine hydraulics requires the setting of six vari-
ables:
Valve Type, Max Power, Min Speed, Idle Speed, Symmetry, Cross-coupling.
Recommended resources for calibration:
•
Two people
•
Tape measure
•
Two concrete blocks or similar for marking blade and wheels
•
A bubble Level or similar
•
Spray paint or similar
When measuring these values, it is recommended that the machine is at
half engine speed.
The instructions include settings for Sideshift. If the machine does not
have Sideshift installed, these settings can be skipped.
Step 1:
VALVE TYPE
There are two types of hydraulic valves that are supported for Motor-
graders, Proportional NPN and Danfoss. Select the type that applies to
the valve installed. If the installed valve type is
RHM
then the sideshift
valve type
must be set to ON/OFF 7 Hz NPN
.
There are other options available in the menu that are used for other
machine types but that will not apply for these instructions. Please
consult with your distributor or a qualified service technician if you are
unsure of the type installed on your machine.
Step 2:
MAX POWER
This informs the system of the valve size that is installed. Select the
percentage that best corresponds to the installed valve.
Step 3:
IDLE SPEED
Idle speed is the setting that the machine will use while in standby. Adjust
the idle speed for each valve (lift and tilt) and in both directions (up and
down). The TEST button should be used to verify the solution. The value
should be just low enough to prevent the blade from moving. If there is
any motion in the blade, the setting is too high. A tape measure is recom-
mended to ensure that the blade is not moving. It is not recommended to
"eye ball" the blade motion from the cab of the machine; two people are
recommended.
For graders with Danfoss valves installed, a counter balance is recom-
mended. If a counter balance is not installed, Idle Speeds should be set
to zero (0).
2.5 amp coil and all Danfoss Valves: 100%
2.0 amp coil: 80%
1.5 amp coil: 60%
1.0 amp coil: 40%
0.5 amp coil: 20%
Содержание iCON grade iGG Series
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