Great Plains YP2425A Operator Manual - Manual (Page 57)

Great Plains Manufacturing, Inc. Table of Contents Index Adjustments 53
2014-02-10 Table of Contents Index 401-626M
Gauge/Transport Wheel Adjustments
The gauge/transport wheels serve two functions:
Refer to Figure 61
1.
When the planter is lowered, the wheels establish
the heights of their respective sections, nominally a
tool bar height of 26 inches (66 cm) above the
planting surface.
The main and trailing wheels are not adjustable
in height.
The wing gauge wheels may be slightly raised or
lowered by adjusting a nut on the cylinder rod. See
“Wing Leveling, Inboard End” on page 21.
2. When the planter is raised, all of these are the
transport wheels. The main wheels
are rigid, and
aid steering. The trailing wheels are full castering.
The gauge wheels are usually adjusted only to bring all
sections to level.
Marker Adjustments
There are five adjustments and one maintenance item
for markers:
• Disk Angle (page 54)
Even if your row spacing rarely changes, you may
need to adjust disk angle for soil conditions and
planting speed.
• Marker Extension (page 54)
Once set for a specific row spacing, this only needs
periodic checking to ensure the clamp is secure.
• Marker Support Wheels (page 55)
Three bolt holes are available for adjusting height.
• Chain Length (page 55)
This needs to be set if the chain is replaced. It may
also need adjustment for unusual terrain.
• Marker Speed (page 56)
Once initially set by your dealer, this rarely needs
modification.
• Shear Bolt Replacement (page 107)
If a marker hangs up on an obstruction, a bolt at the
fold is designed to fail.
Figure 61
Gauge Wheels
29711
3
1
2
1 2
3
1
2
Crushing and Sharp Object Hazards:
Never allow anyone near the planter when folding or
unfolding the markers. You may be injured if hit by a folding or
unfolding marker. Markers may fall quickly and unexpectedly
if the hydraulics fail.