MacDon R85 Rotary Disc 16 Foot Self-Propelled Windrower Headers - Manual (Page 160)

MAINTENANCE AND SERVICING
5. Loosen jam nut (A) to release tension on auger drive
belts (B).
6. Remove the belts.
NOTE: All three belts must be replaced.
NOTE: Check alignment of pulleys. Contact your
MacDon Dealer if pulleys need realigning.
7. Install belts (B) on pulleys ensuring they are in the
pulley grooves.
8. Tension the belts. See Inspecting the Auger Drive
Belts, page 150 .
Figure 7.67
9. Reinstall cover (B) with bolts (A).
10. Close driveshield.
11. Readjust tension of new belts after a short run-in period
(about 5 hours).
Figure 7.68
7.7.6 Sealed Bearing Installation
Follow these steps to install sealed bearings:
1. Clean shaft and coat with rust preventative.
169457
152
Rev. F