CropHawk Draper Platform Operators Manual 41
Feed Drum
Adjustments
The feed drum is the critical mechanism for the transfer of material from the draper platform to the combine feed-
erhouse and can be adjusted up or down and fore or aft depending on crop volume and density. Retractable finger
timing is also adjustable for different crop conditions.
The operating height of the feed drum is measured from the top of the drum to the edge level of the shroud above
(A). The operating height for most medium to heavy volume crops is 190mm which is in the upper range of height
adjustment. The retractable finger pitch setting that is best matched these crops is fully extended in the
straightforward position (3 o’clock looking at the feed drum
from the right side).
As crop volume decreases if crop is bunching, lowering the
drum and/or advancing the retractable finger pitch to a lower
fully extended position (4 o'clock) will assist in a more even
feed to the combine.
NOTE: Always maintain a minimum 25 mm (1 in) of clear-
ance between feed drum/ retractable fingers and combine
feederhouse components/stainless crop ramp .
IMPORTANT: Failure to check drum clearances after ad-
justments may result in damage.
Advancing and Retarding Retractable Finger Timing
1.
Loosen the 4 retractable finger timing lock bolts (A) on
the right side feed drum hangar.
2.
Place a
1
inch socket or spanner on the end of the feed
drum crankshaft (B), turn clockwise to advance
retractable finger timing or anti-clockwise to retard re-
tractable finger timing.
3.
When desired position is obtained re-tighten the 4
retractable finger timing lock bolts (A) to 56nm (41ft-lb)
and remove spanner.
4.
Check clearances are sufficient on platform floor
and combine feederhouse chain.
A
B
HEIGHT 190 mm
Raising and lowering feed drum
1.
Loosen locknut (A) on both sides of drum.
2.
Turn bolt (B) clockwise to raise feed drum or anti-clockwise to
lower feed drum.
3.
Tighten locknut when desired feed drum height is obtained, and
check clearances are sufficient on platform floor and combine
feederhouse chain.
NOTE: Always ensure feed drum height settings are matched on both
sides.
A
B
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