MacDon FD75 OM - Manual (Page 226)

HEADER ATTACHMENT/DETACHMENT
10. Remove locking pin (A) from adapter pin (B).
11. Raise handle (C) to disengage adapter pins (B) from
feeder house. Replace locking pin (A) in adapter pin,
and secure with hairpin.
Figure 5.54: Feeder House Locks
12. Lower feeder house to ground until feeder house posts
(A) disengage adapter (B).
13. Slowly back combine away from header.
Figure 5.55: Header on Combine
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