Great Plains 2525P Operator Manual - Manual (Page 68)

2525P and 2520P
118-915M 4/23/2010
66
Grommet Maintenance
Periodically check seed meter and seed box grom-
mets 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 92
For proper operation and to prevent downtime and
repair, keep drive chains properly adjusted and lu-
bricated. 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
connector link retainer towards the centerline
and the clip opening (split end) is facing the op-
posite way of the chain travel. See Figure 88,
page 63.
20 Series Opener Side Wheels
Refer to Figure 93
1. Lift opener side wheel off the ground. Move tire
in and out to check for end play. Check for rough-
ness in bearing by rotating wheel. If the bear-
ings are rough, inspect and replace if
necessary.
2. The side wheels are preset at the factory, how-
ever 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 removed from the inside to the out-
side. When installed, the wheel should turn free-
ly 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 nec-
essary.
5. When reinstalling side gauge wheels, align tab
on hex adjustment (6) with notch in bushing. Re-
place bolt and tighten.
6. Adjust side gauge wheels. Refer to “Adjust-
ments,” page 25.
Disk edges are sharp. Be careful when working in this ar-
ea.
19193
19194
20432
Figure 93
Side Wheels
Figure 92
Drive Chains and Idlers