MacDon 963 Harvest Header - Manual (Page 49)

48
MAINTENANCE/SERVICE
DRAPERS (continued)
Draper Drive & Idler Rollers
Replace draper roller bearings every 500 hours or
annually.
NOTE: When tightening jam nuts at ends of idler roller,
torque to 30 - 45 ft.lbs. (40 - 60 N ⋅ m). Over-tightening
may cause thread to fail.
NOTE: At drive roller to motor connection, there is a
short "through-bore" setscrew (F) on top of setscrew
(G). When removing, be sure to engage Allan wrench
only far enough to remove setscrew (F) first, then
setscrew (G).
Installation of Draper Seals
Front edge draper seals are supplied with the header.
These are three long L-shaped pieces bolted to the
right rear header panel. Install these seals if:
• Dry material accumulates inside the draper at (A),
or between draper and front track (B).
• Wind raises the front edge of the drapers.
IMPORTANT: To prevent damage to drapers, do not
use front edge draper seals in wet or muddy
conditions. In these conditions, material may pack
under the seal, causing damage to the front edge of
the drapers.
To install front edge draper seals:
1. Two of the draper seals are the same length.
Position one of these at each end of the cutterbar,
with the remaining seal in the center.
2. Install seals (C) and retainer clips (D) as shown.
Locate a clip at both seal joints, with the remaining
clips spaced approximately every eighth guard bolt.
NOTE: Clips are already installed to retain the
movable left deck. Loosen these to allow installation
of draper seal.
3. Push retainer clip against draper seal and tighten
hardware to lock in position. Draper seal must not
touch draper, but clearance is not to exceed 3/16
inch (4.5 mm).
FRONT EDGE DRAPER SEALS
AND RETAINER CLIPS
INSTALL DRAPER SEALS TO PREVENT
DRY MATERIAL ACCUMULATION
DRIVE ROLLER TO MOTOR CONNECTION