MacDon R85 Operator's Manual page 56

9. Move windrower left side (cab-forward) platform (A) to
OPEN position to access valve blocks.
10. Connect the two hose bundle from header to the middle
valve block (A) on windrower as shown.
11. Remove caps and plugs on hoses from windrower and
lines on header.
169455
OPERATION
Figure 5.41
Figure 5.42
A - Middle Valve Block
C - Return
48
B - Pressure
Rev. E