MacDon FD75 OM - Manual (Page 353)

MAINTENANCE AND SERVICING
6.11.5 Adjusting Deck Height
To prevent material from entering drapers and cutterbar, maintain deck height so that draper runs just below
cutterbar with maximum 1/32 in. (1 mm) gap (A), or with draper deflected down slightly (up to 1/16 in. [1.5 mm]) to
create a seal.
NOTE:
Measurement is at supports with header in
working position and decks slid fully ahead.
WARNING
To avoid bodily injury from fall of raised reel, always
engage reel safety props before going under raised
reel for any reason.
DANGER
To avoid bodily injury or death from unexpected
start-up or fall of raised machine, always stop engine,
remove key, and engage safety props before going
under header for any reason. Refer to the combine
operator’s manual for instructions regarding the
proper use and storage of header safety props.
Figure 6.170: Draper Seal
A - Gap (Draper to Cutterbar) B - Draper C - Cutterbar
To adjust deck height, follow these steps:
1. Loosen tension on draper. Refer to 6.11.3 Adjusting
Side Draper Tension, page 336 .
2. Lift draper at front edge past cutterbar to expose the
support.
3. Loosen two lock nuts (A) ONE-HALF TURN ONLY on
deck support (B).
NOTE:
There are two to four supports per deck
depending on header size.
4. Tap deck (C) to lower deck relative to supports. Tap
support (B) using a punch to raise deck relative
to support.
Figure 6.171: Deck Support
169894 339 Revision A