Folding – Great Plains 3N4010HDA Operator Manual User Manual
Page 29
Great Plains Manufacturing, Inc.
Operating Instructions
25
2013-09-24
196-444M
Folding
Pinch Point and Crushing Hazard:
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.
Fold the drill on level ground with the tractor in neutral.
The hitch-to-hitch length of the 3N-4010HDA increases by 12
feet (3.7m) during folding. Allow at least 12 feet (3.7m) of
clearance ahead of and behind the complete air drill assembly
when folding.
Tractor can move forward during folding, if tractor is in
neutral with brakes released.
Center section of drill, and hitched air cart, can move
backward during folding if tractor is in Park, has brakes set, or
otherwise cannot move.
1.
Raise drill with lift cylinders until cylinders are fully
extended.
2.
Install lift locks. See “Raising” on page 23.
3.
Set the drill Fold/Marker selector valve to the Fold
cylinder circuit. See “Fold Selector Valve” on
page 24
4.
Retract the Lock cylinder circuit lever to:
disengage the tool bar lock,
disengage swivel locks,
disengage caster locks, and
enable the self-latching transport lock.
Set circuit to neutral.
5.
Extend the Fold cylinder circuit lever to slowly fold
wings forward. The transport lock automatically cap-
tures the right wing tool bar for transport.
Note: It may be necessary to ease forward slightly with
the tractor to assist wings in folding completely.
Figure 21 Tool Bar & Transport
Lock Cylinders
27184
28185
Figure 22
Swivel Lock Cylinder
27183
Figure 23
Caster Lock Cylinder
21842