MacDon 963 Harvest Header - Manual (Page 24)

23
HEADER OPERATION
Operating Variables
END DELIVERY: The left deck of the 963 header
can be manually shifted to close off the center
opening and deliver crop to the left end of the
header. This provides the capability of windrowing
with a combine or non-windrower tractor as the
power unit.
To shift left deck:
1. Reverse draper travel by disconnecting hydraulic
hoses at (B) and connect to opposite lines.
2. Remove deck retainer clips at cutterbar, item (G)
on previous page. (If front edge draper seals are
installed at cutterbar, remove these seals and
clips as well.)
3. For Model 873 Adapters, re-route hydraulic hoses
from pump to stop hydraulic flow to the feed
draper and drum. See “Windrowing with the
Combine” in the 873 Adapter Op. Manual
4. Lower the header to the ground and continue
until adapter lowers.
5. Lengthen center link between header and
adapter to steepest header angle to increase
clearance to header back sheet
6. Loosen bolts (C) at both clamps on left deck.
Attach a "Come-Along" from a sickle guard to the
deck cross member (A) as shown. Move deck to
the right until there is approximately 2 inches (50
mm) clearance between the rollers of the two
decks.
IMPORTANT: This clearance is required to
prevent contact between draper connectors or
slats as they pass between decks.
NOTE: If there is interference between deck
backsheet and combine adapter retracting tine
drum, move drum back to provide clearance (if
clearance to combine feed drum allows). See
“Drum Fore-Aft Adjustment” in 873 Adapter
Operator’s Manual.
7. Tighten bolts (C) at both clamps.
8. Readjust center link to achieve desired header
operating angle.
9. Reinstall deck retainer clips (and front edge
draper seals, if required).
10. With header and combine feed chain drum
floated up, check clearances: There should be 1
to 2 inches (25 to 50 mm) clearance between
adapter drum and combine feed chain drum,
while still providing adequate clearance to header
backsheet. If repositioning adapter drum does not
provide enough clearance both fore and aft,
remove one row of tines from drum (2 or 3 tines,
depending on drum size).
11. Adjust header flotation to compensate for the
shift in weight. See "Header Flotation" in
Windrower or Combine Adapter Operator's
Manual.
12. For rotary combines with narrow feeder opening,
increase delivery opening width to be suitable for
windrowing. See "Delivery Opening Width",
beginning on page 20.
LOOSEN CLAMPS
C
REVERSE HOSES AT HYDRAULIC LINES
B
USE "COME-ALONG" TO MOVE DECK
A