MAINTENANCE/SERVICE
Form # 169017
186
Issue – June 2008
7.13.5
Header &Reel Hydraulics
7.13.5.1 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 the
ground speed to maintain the correct system
load and header drive operation.
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 Windrower Dealer or
refer to the Technical Service Manual for your
Windrower.
TRACTOR
MODEL
HEADER MODEL
APPLICATION/SYSTEM
SUGGESTED OVERLOAD
WARNING SETTING
psi (kPa)
TRACTOR PRESSURE
COMP SETTING
psi (kPa)
M150
D60 & A40D
Reel/Draper Pressure
3000 (20684)
3200 (22063)
M150
D60 & A40D
Knife/Conditioner Pressure
4000 (27579)
4200 (28958)
M150
R80
Disc Pressure
4000 (27579)
4200 (28958)
M200
R80
Disc Pressure
4300 (29647)
4500 (31026)
M200
D60 & A40D
Reel/Draper Pressure
3000 (20684)
3200 (22063)
M200
D60 & A40D
Knife/Conditioner Pressure
4300 (29647)
4500 (31026)
7.13.5.2 Flow Control Block
Two hydraulic valve blocks with multiple
cartridges are used for the various windrower
functions and are controlled by the Windrower
Control Module (WCM) according to the inputs
from the operator. The valve blocks are located
behind the left cab-forward side 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.