M
CB
3
Installation Manual
Page 35
Technical Setup - Valve
5.5
Valve Setup Menu
Set Valve Minimum Correction
T
he Valve Minimum Correction (VMC) is set to provide output flow as soon as a correction
signal is received.
The edges of the valve spool have some degree of overlap with the corresponding edges of
the valve body ports. This is required to prevent flow across the spool when it is in a neutral
position. This spool overlap means that there will be a defined movement of the spool in the
bore before flow begins to take place. This characteristic is sometimes referred to as valve
“deadband”. In this text, adjusting the control box to account for this deadband and create a
minimum blade velocity will be referred to as the Valve Minimum Correction (VMC) to avoid
any confusion with laser system deadband or accuracy.
The minimum correction is set independently for both the raise and lower.
Set the machine throttle to normal operating RPM and place the blade approximately 1 foot
(0.3 m) above the ground. No laser is required.
Select Raise Min from the Valve Setup Menu.
Spool Overlap - Minimum distance
to move valve for flow to begin.
Valve Setup Menu
Raise Min
Lower Min
R/L Balance
RH/LH Balance
20
20
