Great Plains 3S-4000HDF Operator Manual - Manual (Page 81)

Great Plains Manufacturing, Inc. Table of Contents Index Maintenance and Lubrication 77
2013-06-13 Table of Contents Index 195-067M
Bleeding Fold Hydraulics
Refer to Figure 84
1. Review warnings, bleeding notes and system
information on page 75.
2. With drill unfolded and fold cylinders completely
extended, disconnect rod end pins and swing the
cylinders so they will not contact anything when
extended.
3. Loosen rod end hose JIC fitting at elbow on right
fold cylinder.
4. Slowly supply oil to rod end of fold cylinders until oil
appears at loosened hose fitting. Tighten fitting and
completely retract fold cylinders.
5. With cylinders completely retracted, loosen base end
hose JIC fitting
at elbow on right fold cylinder.
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. Re-pin cylinder rod clevis.
Figure 84
Bleeding Fold Hydraulics
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