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MAINTENANCE
Rotor Blade Replacement
Procedure
WARNING
If air pressure is not relieved from Tillage Rotor
Shocks before servicing unexpected forceful
movement will occur.
Drive Rotor
1. Raise Machine. Install Transport Lock if applicable.
See Figure 3-4.
2. Remove the 3/8-16 x 2-1/2 Bolts and Locknuts that
attach the Gauge Wheel Hub and Spindle to the
Gauge Wheel Arm. Wheel and Tire Assembly should
remain attached to the Hub and Spindle.
3. Relieve air out of the LH and RH Tillage Rotor Shocks
and remove Rockshaft Link Bolts that attach to the
Swing Arms. The Tillage Rotor Shafts will now rest on
the U-Shaped Support Plate. See Figures 4-10
and 4-11.
4. Remove Rotor Drive Chain Shield.
5. LH and RH side, relieve #80-2 Drive Chain tension as
necessary to remove Drive Chain.
6. Remove RH Drive and Tillage Rotor 3/4-10 x 2 Bolts,
Lock Washers, and Thick Washers from the end of
the Rotor Shafts.
Drive Chain,
#80-2
Sprocket,#80-2
Key,1/2
Bolt,3/4-10 x 2
Rotor Drive
Chain Shield
4-8
TABLE OF CONTENTS
Washer,
3/16 Thick
RH Swing
Arm
Gauge
Thrust
Wheel Arm
Plate
Washer,
3/4 x 3 x 3/8
Washer,
Washer,
Lock 3/4
1.785 ID x 11ga
Figure 4-10: Rotor Drive Blade Repair - LH Side
7. Remove chain access Cover from the RH Swing Arm,
#80-2 Drive Chain, Sprockets, 1/2 Keys and 11ga
Washers.
8. LH side, open Seed Box Drive Chain Upper Shield
and remove the Lower Shield.
9. Remove LH Drive and Tillage Rotor 3/4-10 x 2 Bolts,
Lock Washers, Thick Washers and Flat Top Washers
from the end of the Rotor Shafts.
10. Remove LH Swing Arm with the #80-2 Chain Take-up
and Bearings attached.
11. Remove #60 Seed Box Drive Chain, Drive Sprocket,
3/8 Key, and Chain Shield.
12. RH side, remove RH Swing Arm with the #80-2 Chain
Take-up, Bearings and Thrust Bearing attached.
13. Remove Thrust Plate from the Frame End Plate and
3/16 thick Washers from the Drive Rotor Shaft.
14. RH side, support the Drive Rotor with a floor jack.
Remove the Bearing from the Frame End Plate.
15. Block the Drive Rotor so that the Drive Rotor drops
down approximately 1-1/2" ensuring that the Bearing
Shield on the Drive Rotor Shaft is not being damaged
during this process. Move the floor jack to the left side
to support the Drive Rotor. Remove the Bearing from
the Frame End Plate.
16. Lower the Drive Rotor to the ground. Remove the
11ga Washers and Bearing Shields from the Drive
Rotor Shafts.
Drive Rotor
Bearing
Cover
Shield,1-3/4
Rockshaft
Link
Front
Bearing,1.780
F-1097-2305
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