MacDon 873 Combine Adapter - Manual (Page 28)

Form # 147069 Issue 09/06 26
MAINTENANCE/SERVICE
SEALED BEARING INSTALLATION
1. Clean shaft and coat with rust preventative.
2. Install flangette, bearing, flangette and lock
collar. The locking cam is only on one side of
the bearing.
3. Install and tighten the flangette bolts.
4. When the shaft is located correctly, lock the
lock collar with a punch. The collar should be
locked in the same direction the shaft rotates.
Tighten the set screw in the collar.
5. Loosen the flangette bolts on the mating
bearing one turn and re-tighten. This will allow
the bearing to line up.
GREASING THE ADAPTER
See “Recommended Lubricants” in this section for
recommended greases.
The adapter has eight greasing points as shown
below and on the following page. Use the hour
meter in the combine cab and the “Maintenance
Checklist” provided to keep a record of scheduled
maintenance.
Procedure:
1. Wipe grease fitting with a clean cloth before
greasing, to avoid injecting dirt and grit.
2. Inject grease through fitting with grease gun
until grease overflows fitting.
3. Leave excess grease on fitting to keep out dirt.
4. Replace any loose or broken fittings immedi-
ately.
5. If fitting will not take grease, remove and clean
thoroughly. Also clean lubricant passageway.
Replace fitting if necessary.
100 Hours or Annually:
1. Drum Bearing (A) – one fitting
NOTE: Alignment of fitting with opening may be
difficult when header is attached. Aligning drum
access cover bolts (B) with hole (H) in drum
support plate will properly align fitting.
TIGHTEN COLLAR IN DIRECTION
SHAFT ROTATES
DRUM BEARING
A
B
H