MacDon M205 Operators Manual - Manual (Page 403)

MAINTENANCE AND SERVICING
Installing Lift Filter
NOTE:
To view filter specifications, refer to
Filter Part Numbers,
page 286 .
1. Clean the gasket groove (B) in the filter head (A).
2. Apply a thin film of clean oil to the filter gasket (C).
3. Install new gasket into the groove (B) in the filter
head (A).
4. Screw the new filter (D) onto the filter head until the
gasket contacts the filter.
Figure 5.205: Hydraulic System
5. Tighten filter an additional 3/4 turn by hand.
IMPORTANT:
Do NOT use a filter wrench to install oil filter.
Over-tightening can damage gasket and filter.
Figure 5.206: Hydraulic System
Header and Reel Hydraulics
Relief Valve and Overload Settings
The pressure relief valve is preset (Windrower Differential Relief Setting) for all header types, models, sizes, and
options. Refer to
5.19 Relief Valve and Overload Settings, page 388 .
When the system operating pressure reaches the relief setting, the relief valve opens which causes a high pitch
sound. Reduce the ground speed to maintain the correct system load and header drive operation.
An optional load sensor ( 7.1.16 Pressure Sensor, page 431 ) may be installed to monitor system pressure. When the
pressure approaches an overload condition, the cab display module (CDM) produces a warning tone and a flashing
pressure reading. If the warning is ignored, the load will continue to rise which causes the relief valve to open at the
relief setting. Otherwise, reduce the ground speed to maintain the correct system load and header drive operation.
The overload pressure is programmed into the CDM when inputting the header parameters. Refer to 3.18.5 Cab
Display Module (CDM) Programming, page 85 and 5.19 Relief Valve and Overload Settings, page 388 for suggested
settings.
If lift and drive capacity problems develop, the pressure relief valve may require adjusting. Contact your
MacDon Dealer.
169887 387 Revision A