Great Plains 2420F Operator Manual - Manual (Page 50)

1520F, 2020F, 2420F, 1510HDF, &
2010HDF
8/14/2006
48
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 connec-
tor link retainer towards the centerline and the clip
opening (split end) is facing the opposite way of the
chain travel.
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. Check for the correct number of flat washers (1) and
machine washer (8) between the side gauge wheel
(2) and the wheel arm (3). There must be three flat
washers (1) and one machine washer (8) between
the wheel bearing and arm with the machine washer
(8) next to the arm. There should be three flat wash-
ers (1) and one lock washer (9) on the outside the
wheel. When installed, the wheel should turn freely
and not hit the arm at the curve. Do not add any
more washers than necessary.
3. Disassemble side gauge wheel arm (3) from unit.
Remove bushing (4) from sleeve (5) and check
bushing for wear. Replace bushing if necessary.
4. When reinstalling side gauge wheels, align tab on
hex adjustment (6) with notch in bushing. Replace
bolt and tighten.
5. To prevent plugging loosen clamp bolt (7) and slide
arm inward to take up gap between side wheel and
disk blade.
6. Adjust side gauge wheels. Refer to “Adjustments,”
page 25.
!
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