Unfolding – Great Plains 3N4010HDA Operator Manual User Manual
Page 30
26
3N-4010HDA
Great Plains Manufacturing, Inc.
196-444M
2013-09-24
Unfolding
To prevent serious injury or death:
▲ Always use transport locks when drill is folded.
▲ Fold only if hydraulics are bled free of air and fully charged
with hydraulic oil.
▲ Stay away from frame sections when they are being raised
or lowered.
▲ Keep away and keep others away when folding or unfolding
drill.
Unfold the drill on level ground with the tractor
transmission in neutral.
The hitch-to-hitch length of the 3N-4010HDA decreases by 12
feet (3.7m) during unfolding.
Keep all persons away from all drill wheels, and the air cart
wheels during unfolding.
Tractor can move backward during folding, if tractor is in
neutral with brakes released.
Center section of drill, and hitched air cart, can move forward
during folding if tractor is in Park, has brakes set, or otherwise
cannot move.
1.
If markers are installed, check that the Fold/Marker
selector valve is set to the Fold cylinder circuit. See
“Fold Selector Valve” on page 24.
2.
Extend the Lock circuit lever to:
enable the tool bar lock,
enable the swivel locks,
enable the caster locks, and
release the transport lock.
Set circuit to neutral.
3.
Retract the Fold circuit to unfold drill.
The tool bar, swivel and caster locks automatically
engage, either at the completion of unfolding, or dur-
ing next forward movement of the drill.
4.
Extend the Lift circuit as needed to raise the lift cylin-
der bodies off their lock channels.
5.
Remove lock channels from all six wheel cylinders.
Store lock channels.
6.
Lower drill. See “Lowering” on page 23
7.
If present, set Fold/Marker selector valve to Marker.
See “Fold Selector Valve” on page 24.