Great Plains 2025P Operator Manual - Manual (Page 73)

8/14/2006 118-928M
71 Maintenance and Lubrication
Grommet Maintenance
Periodically check seed meter and seed box grommets
for weathering or cracking and replace as necessary.
Check sliding seed tubes at this time to make sure they
slide freely.
Drive System
Refer to Figure 99
For proper operation and to prevent downtime and re-
pair, keep drive chains properly adjusted and lubricated.
Regularly check drive chains for excess slack and wear.
Adjust idlers to remove any excess slack from chains.
NOTE: Be sure chain is installed with the chain con-
nector link retainer towards the centerline and the
clip opening (split end) is facing the opposite way of
the chain travel. See page 68.
20 Series Opener Side Wheels
Refer to Figure 100
1. Lift opener side wheel off the ground. Move tire in
and out to check for end play. Check for roughness in
bearing by rotating wheel. If the 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 (7)
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 (10) and wheel (2). Remove shims (1)
from the inside of the wheel (2) and place them on
the outside of the wheel. Always place the shims re-
moved from the inside to the outside. When in-
stalled, the 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 (3) from unit.
Remove bushing (4) from sleeve (5) and check
bushing for wear. Replace bushing if necessary.
5. When reinstalling side gauge wheels, align tab on
hex adjustment (6) with notch in bushing. Replace
bolt and tighten.
6. Adjust side gauge wheels. Refer to “Adjustments,”
page 26.
!
CAUTION
Disk edges are sharp. Be careful when working in this area.
19193
19194
20432
Figure 100
Side Wheels
Figure 99
Drive Chains and Idlers