MacDon FD75 OM - Manual (Page 371)

MAINTENANCE AND SERVICING
15. Adjust the chain tension (C). Tension on chain should
be such that hand-force deflects the chain 1/8 in.
(3 mm) at midspan.
16. Install lower cover (B) and secure with three
screws (A).
Figure 6.211: Drive Cover
17. Install upper reel drive cover (B) and secure with six
screws (A).
Figure 6.212: Drive Cover
Breaking the Chain Method
1. Lower header and reel, shut down combine, and
remove key from ignition.
2. Remove six screws (A) and then remove upper reel
drive cover (B).
Figure 6.213: Drive Cover
169894 357 Revision A