MacDon 742 HAY CONDITIONER - Manual (Page 30)

Form # 46290 Issue 09/05 28
RELEASE DRAPER TENSION
D
OPERATION
DELIVERY OPENING WIDTH (continued)
Adjust delivery opening width: 21', 25', 30' & 36' Headers
Decks on these headers can be slid to adjust opening size without cutting or extending the drapers. On hydraulic
shift headers a wider end deflector allows opening size to be narrowed 15” (380 mm), while the opening on other
headers can be narrowed 10.2” (260 mm).
All 21’ and 25’ headers, as well as 30’ & 36’ combine headers are supplied with a long draper which may be
cut to provide a wider opening. By cutting both drapers, opening can be increased by 19” (480 mm). If
reducing the opening size after it has been enlarged, a short section of draper (available from your dealer) can
be added to increase draper length.
NOTE: To avoid damage to draper and/or draper tension
mechanism, do not use drapers that are different in
length from those specified.
NOTE: Windrower drive tires limit end delivery opening
size on 21’ headers. Maximum end delivery opening size
is 53" (1345 mm) for 21’ header and 64.3” (1633 mm) for
25’ to 36’ headers. See page 32 for more information.
For adjusting opening size without cutting drapers,
go to step 8:
To cut or extend draper:
1. Release draper tension by turning bolt (D) counter-
clockwise until bolt begins to turn out of backsheet.
2. Remove screws from draper connector slat.
3. Use the following chart to determine which opening size and row of holes are required for the desired
application.
CONNECTION
CENTER DELIVERY
OPENING WIDTH (W)
(between
rollers)
LEG TO
ROLLER
EDGE (DIM. X) DESIGNATED APPLICATION
and COMMENTS
Row A to Row C (both drapers) 64.5" (1640 mm) 7.5" (190 mm)
Opening for 12’ to 18’ and 30’ & 36’
Windrower Headers, (original drapers only).
Row B to Row C (both drapers) 57.5" (1460 mm) 11" (280 mm)
Opening for combine models: JD 9600, 9610,
9650, NH CX and Lexion wide deck models.
Row E to Row F (both drapers) 53.5" (1360 mm) 13" (330 mm)
Opening for combine models: JD STS, CTS,
9500, 9510.
Row D to Row C (both drapers) 49.6" (1260 mm) 15" (380 mm)
Opening for Lexion combine mid sized deck
models.
Row A to Row C (both drapers) 41.7" (1060 mm) 19" (480 mm)
Opening for Case combine 80 & 88 Series,
Case AFX and NH CR 970/980 combines.
Row B to Row C (both drapers) 64.5" (1640 mm) 7.5" (190 mm)
Maximum opening on all 21' & 25’ Headers,
or opening for replacement drapers on 30’ &
36’ Windrower Headers.
Row A to Row C (both drapers) 35.6" (905 mm) 20" (508 mm)
Opening for combine models: Case 60 & 66
Series, NH CR 920/940/960, Gleaner or
minimum opening on 21’ & 25’ Windrower
Headers.
Row A to Row C (one draper)
Row B to Row C (one draper) Maximum end delivery opening of 53” (1345
mm) on 21' Windrower Header.