Bleeding fold hydraulics – Great Plains 2S-2600HDF Operator Manual v1 User Manual
Page 74
70
2S-2600/F/HD/HDF
Great Plains Manufacturing, Inc.
195-440M
2014-05-16
Bleeding Fold Hydraulics
Refer to Figure 72
1.
Review warnings, bleeding notes and system infor-
mation on page 68.
2.
With drill unfolded and fold cylinders completely
extended, disconnect rod end pins and swing the cyl-
inders so they will not contact anything when
extended.
3.
Loosen rod end hose JIC fitting
at elbow on left
fold cylinder.
Do not loosen an O-ring fitting. Bleeding air from an O-ring
fitting will damage the seal.
4.
Slowly supply oil to rod end of fold cylinders (line
noted as “Pressure 1st”) 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 left fold cylinder.
6.
Slowly supply oil to base end of fold cylinders (line
noted as “Pressure 2nd”) until oil appears at loos-
ened hose fitting. Tighten base end hose fitting and
cycle fold cylinders in and out several times.
7.
Re-pin cylinder rod clevis.
Figure 73
Bleeding Fold Hydraulics
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