Great Plains 3S-4000F Predelivery Manual - Manual (Page 19)

9/12/2009 195-242Q
17 Setup
Bleeding Fold Hydraulics.
1.
Check hydraulic fluid level in tractor reservoir
and fill to proper level. Add fluid to system as
needed.
2. With drill unfolded and fold cylinders com-
pletely extended, disconnect rod end pins
and swing the cylinders so they will not con-
tact anything when extended.
3. Loosen rod end hose fitting at elbow on right
fold cylinder (1).
NOTE: Do not loosen an O-ring fitting for bleed-
ing. Bleeding air from an O-ring fitting will damage
the seal.
18958
4. Slowly supply oil to rod end of fold cylinders
until oil appears at loosened hose fitting.
Tighten fitting and completely retract fold cyl-
inders.
5. With cylinders completely retracted, loosen
base end hose fitting at elbow on right fold cyl-
inder (2).
6. Slowly supply oil to base end of fold cylinders
until oil appears at loosened hose fitting.
Tighten base end hose fitting and cycle fold
cylinders in and out several times.
7. Repin cylinder rod clevis.