Lateral Tilt Flow Control Adjustment - Hillco JS7020 Operator's Manual

Lateral Tilt Flow Control Adjustment

For combines that have a Hillco lateral tilt
manifold the lateral tilt flow control valve adjusts
the speed at which the header rotates. If the
combine is an S680 or S690 and came stock
with Contour Master the original stock manifold
and valve control the tilt (refer to the John Deere
Operator's manual for adjustment). The header
should rotate at the chassis' rotation rate. The
tilt speed is a compromise between manual tilt
mode and automatic tilt mode. The rotation rate
is set at the factory; however with larger header
configurations it may be necessary to adjust the
header's rotational rate.
To test the header rotation rate, push the tilt
button to the left until the tilt frame is rotated
to the left limit. Push the tilt button to the right
until the tilt frame reaches its right limit. The
cycle time should meet the specification of 14
seconds.
Specification
Left-to-Right Cycle Time-14 seconds
If the cycle time is shorter than the specification,
turn the flow control set screw clockwise a
quarter turn at a time until the cycle time meets
the specification. If the cycle time is longer
than the specification, turn the flow control
screw counterclockwise a quarter turn at a time
until the cycle time meets the specification.
This specification ensures that tilt speed is
adequate for manual operation.
header configurations this tilt speed may cause
the automatic mode to be unstable.
recommends adjusting the Contour Master's
sensitivity until it becomes stable. Refer to the
combine's operators manual for Contour Master
adjustments.
For changing the header tilt speed on a JS9020
Leveling System consult the John Deere
Operator's Manual.
D-171206CMA01C
14 second rotation time from one side to other
Notice
With some
Hillco
Hillco Technologies, Inc.
47
A
Located Below the Cab
A - Relief Ports
B - Flow Control
The pressure relief valve is set
during installation.
the setting may cause damage
to the tilt frame or hydraulic
system. However, in very large
header configurations, it may
be necessary to change the
setting. Contact your dealer to
reset the relief valve.
A
B
Changing
Sept, 2022