Great Plains FH6800HD Operator Manual - Manual (Page 26)

564-070M 04/28/2014
22 FH6000HD Great Plains Manufacturing, Inc.
Adjustments
To get full performance from your FH6000HD flex har-
row, you need an understanding of all component opera-
tions. There are adjustments for optimal folding and field
results.
Wing Fold Height Adjustment
Refer to Figure 14
As pins seat and wear, wings may droop, and fail to slide
easily onto support cross-member during fold.
Note: Models FH6424HD (24 foot) and FH6427HD
(27 foot) do not have a support cross-member.
In normal operation, the wing engages at about
1 ⁄
2
in (13mm) below the top of the ramp of the wing
support cross-member.
FH6424HD to FH6642HD Wing Fold Height
On 12- and 16-bar harrows up to 42-foot, wing height is
adjusted by a stop bolt
at each wing pivot lug.
Refer to Figure 15
Adjust the fold height by rotating the stop bolt head
(one for each wing).
When the adjustment is complete, inhibit bolt rotation by
applying silicone sealer
to the exposed threads.
Adjustment Page The Adjustment Affects
Hitch Configuration 35 Compatibility with tractor or leading implement
Tooth Angle 37 Aggressive tine setting for unusual conditions
Wing Fold Height Adjustment 22 Proper wing folding as machine ages
FH6424HD to FH6642HD 22
FH6845HD to FH6854HD 23
Figure 14
Wing at Support Cross-Member
31750
1
2
1
2
3
4
Figure 15
FH6400/6600HD Wing Height
31751
3
3
4