MacDon 742 HAY CONDITIONER - Manual (Page 31)

Form # 46290 Issue 09/05 29
APPLY DRAPER TENSION
D
F
OPERATION
To adjust delivery opening width: 21', 25', 30' & 36' Headers (continued)
4. NOTE: For all 21’ & 25’ headers and 30’ & 36’
combine headers, if row of holes (A) or (D) is
selected, (37.4, 41.7 or 49.6 inch opening) the
idler roller assembly must be repositioned in
the decks. See "Idler Roller Positioning" in
Maintenance/ Service section.
5. If increasing delivery opening width:
Cut excessive flap off of draper, leaving 3/8"
(10 mm) extending above the connector. Trim
the new ends at the front and rear corners as
shown on previous page. This allows draper to
fit properly under draper seals to prevent
tearing of edges. Use the cut-offs as a guide for
trimming. Keep the cut-offs for use as a splice.
NOTE: Draper V-guide may require trimming in
order to install connector slats.
6. NOTE: Place connector tube so holes closest to end
of tube are at cutterbar. Connect draper with screw
heads facing center opening.
7. Apply draper tension as follows:
• Check that draper V-guide is properly engaged
in grooves at rear of both rollers.
• Tighten bolt (D) until white indicator bar is
partially hidden behind the roller support arm at
(F).
IMPORTANT: To avoid premature failure of
draper, draper rolls and/or tightener
components, do not operate with tension set so
that white bar is fully hidden.
8. Slide decks to desired opening width:
Manual Shift Headers:
• Loosen nut (E) at top of deck. (For 36’ Header
there are two nuts.)
• Slide deck to achieve correct “X” value (see
chart on previous page).
• Tighten nut (E).
E
POSITION DECKS –
MANUAL SHIFT HEADER