Great Plains 3PYP Operator Manual - Manual (Page 102)

98 3PYP Table of Contents Index Great Plains Manufacturing, Inc.
401-312M Table of Contents Index 2014-09-09
25 Series Disk Spreaders and Scrapers
It is normal for the blade spreader to have some
looseness in the holder and between the blades. Some
looseness is required for proper operation.
Refer to Figure 124 and Figure 125
1. Remove side gauge wheels from arms to
access row-unit disks and disk scrapers .
Note: Your 25 Series row unit may also have optional
gauge wheel scrapers (not shown). Adjustments to
these are described on page 70.
2. With the unit raised, check blade spreader for
wear. Replace spreader if it is narrower than
1 ⁄
2
inch
wide. To replace, remove disk blade , drive out roll
pins
, and install new spreader.
3. When reinstalling disk blades, put two shims
➆
between bearing and shank on each blade. Tighten
bolts.
Note: You may need fewer washers on worn disks.
4. Check that outside disk scrapers are formed to
disk blades to help remove any mud. Bend and twist
scrapers to fit blades as necessary. After every 200
acres of operation, check outside scrapers for proper
adjustment and wear. Replace outside scrapers as
necessary.
25 Series Row-Unit Side Wheels
Refer to Figure 125
1. Lift opener side gauge wheel off the ground. Move
tire in and out to check for end play. Check for
roughness in bearing by rotating wheel. If bearings
are rough, inspect and replace if necessary.
2. The side wheels are preset at the factory. However,
because of normal wear it may become necessary to
make adjustments so the wheel remains close to the
disk. To prevent plugging, loosen clamp bolt
and
slide arm inward to take up gap between side
wheel and disk blade. If more adjustment is needed,
go to step 3.
3. Remove bolt - and wheel . Remove shims from
the inside of wheel and place them on the outside
of wheel. Always place removed shims from the
inside to the outside. When installed, wheel should
turn freely and not hit the arm at the curve. Do not
add any more shims than necessary.
4. Disassemble side gauge wheel arm from unit.
Remove bushing from sleeve and check for
wear. If necessary, replace bushing .
5. When reinstalling side gauge wheels, align tab on
hex adjustment
with notch in bushing. Replace
bolt and tighten.
6. Adjust side gauge wheels. Refer to “Adjusting Disk
Angle & Side Depth Wheels” on page 68.
Sharp Object Hazard:
Disk edges are sharp. Be careful when working in this area.
Figure 124
Spreaders and Scrapers
22839
e
c
r
s
p
d a
c e
s
r
Figure 125
Side (Gauge) Wheels
21894
z
h
a
x
d
v
p
e
z
a
d p
d
a
h v
h
x