MacDon HC10 for D-Series - Manual (Page 109)

MAINTENANCE
2. Loosen three motor mount bolts (A).
3. Turn tensioning nut (B) clockwise to tighten belt, and
counterclockwise to loosen.
4. Tighten the three motor mount bolts (A).
5. Recheck the belt (C) tension.
Figure 5.23
6. Replace cover (B), and secure with washer and wing
nut (A).
7. Readjust tension of a new belt after a short run-in
period (about 5 hours).
Figure 5.24
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Rev. D