2018-07-24
401-312M
3PYP
Maintenance and Lubrication
102
Bleeding Hydraulics
Bleeding procedures vary for different planter vintages:
s/n A1025S and higher: this page
s/n A1006S- (and lower): page 165
s/n A1007S to A1024S: page 165
When performing bleeds per the instructions in the
Maintenance section, be sure to use the procedure for
your implement.
Bleeding Lift Hydraulics
Normally the lift hydraulics are bled at the factory before
shipping, and bleeding should not be required other than
to raise fully and hold lever on for one minute or until all
cylinders extend fully.
If it is necessary to further bleed lift system, see
“
Bleeding Fold Cylinder Hydraulics
Normally the fold hydraulics are bled at the factory before
shipping, and bleeding should not be required other than
to fold fully and hold lever on for one minute or until all
cylinders reach the end of their stroke.
If it is necessary to further bleed fold system, see
“
Bleeding Wing Fold Cylinder Hydraulics
Bleeding Marker Hydraulics
To fold properly, the marker hydraulics must be free of air.
If the markers fold in jerky, uneven motions, see
“
Bleeding Marker Tilt Hydraulics
Sudden Crushing Hazard:
If the planter is folded, and it is suspected that the fold system
has air in it, DO NOT attempt to unfold before accomplishing
the full fold bleed procedure at “
If the fold system has air in it, the wings can descend too fast.
Over-Torque Leak Risk:
Bleed only at
JIC (Joint Industry Conference, 37
flare) or
NPT (National Pipe Thread, tapered thread) fittings, and
never at
ORB (O-Ring Boss) or
QD (Quick Disconnect) fittings.
JIC fittings do not require high torque. JIC and O-ring fittings
do not require sealant.
Machine Damage Risk:
Do not fold or unfold without first raising planter completely.
Содержание Yield-Pro 3PYP
Страница 188: ...Cover Table of Contents Cover Table of Contents ...
Страница 189: ...Table of Contents Index Table of Contents Index ...
Страница 190: ...Great Plains Mfg 1525 E North St P O Box 5060 Salina KS 67402 ...