MAINTENANCE AND SERVICING
Form 169552 / 169554 / 169555
169
Revision A
7.11.5 HEADER AND REEL HYDRAULICS
7.11.5.1 Pressure Compensator Valve
The pressure compensator valve is pre-set to be
sufficient for all header sizes and options. See
table below.
When the system operating pressure
approaches the compensator valve setting, a
warning tone sounds on the CDM, indicating a
potential overload on the header drive.
If operation continues, and the pressure reaches
the setting, the compensator valve is activated.
The header drive will begin to slow down to
avoid overheating the drive pumps.
Reduce ground speed to maintain the correct
system load and header drive operation.
NOTE
The warning tone is only heard if load
sensor is installed and activated.
NOTE
The warning tone is normal when the
operating pressure is very close to the
compensator valve pressure setting.
If lift and drive capacity problems develop, the
pressure compensator valve may require
adjusting. Contact your Dealer, or refer to the
Technical Service Manual for your windrower.
HEADER MODEL
APPLICATION / SYSTEM
SUGGESTED OVERLOAD
WARNING SETTING
psi (kPa)
WINDROWER PRESSURE COMP
SETTING
psi (kPa)
D60 and A40-D
Reel / Draper Pressure
3000 (20684)
3200 (22063)
Knife / Conditioner Pressure
4000 (27579)
4200 (28958)
7.11.5.2 Reel/Conveyor Flow Control Block
Two hydraulic valve blocks control the reel and
conveyor functions, and are controlled by the
Windrower Control Module (WCM) according to
the inputs from the Operator.
The valve blocks are located behind the
maintenance platform.
The valve blocks do not require any scheduled
maintenance other than to check for leaking
fittings or loose electrical connections.
If service is required, contact your Windrower
Dealer or refer to the Technical Service Manual
for your Windrower.