Yetter 3400 Series, Operator'S Manual

Page: 34 / 40

34
WING LOCK KIT
INSTALLATION INSTRUCTIONS
3500-107 Wing Lock Kit is designed to
fit Yetter
21’, 28’, 30’, 34’, 41’, 46’ and
54’ Rotary Hoe Flat Folding Toolbars.
To prevent wings from floating up in
certain operating conditions the Yetter
Wing Lock Kit will hold the wings in
horizontal position when desired. To
allow the wings to float, simply retract
the wing lift cylinders slightly. This
allows complete operator control from
the tractor seat to let the wings float up
or to lock them down.
INSTALLATION:
1. Remove hinge levers and replace
with 4100-
205 hinge lever on 41’
hoes unless hinge levers have a
21/32” dia. hole added to mount
wing lock hooks.
2.
Drill (2) 17/32” dia. holes (as shown)
in hinge wheel ramp on each side of
toolbar. (Holes are in strap after
3/1/82 mfg.)
3. Mount wing lock guides and wing
lock tabs (as shown) with ½-13 x 1-
1/2” hex head cap screws, lock
washers, and nuts.
4. Mount wing lock hooks on hinge
levers (as shown) using 3500-386
bushing, 5/8-
11 x 4” hex head cap
screw, flat washers, and lock nut.
Be sure hooks pivot freely after bolt
is tightened.
5. Level the wings with the lower
existing screw adjustment to hold
the wings straight with the center
section.
6. Cycle cylinders, disconnected from
hinge lever, to remove air from
hydraulic system before folding
wings.
7. Assemble cylinder and hinge wheels
as shown.
8. Extend the wing lift cylinders until
they bottom out. NOTE: This will
cause the wing lock hooks to yield
slightly as they are stretched into
position.
9. Fold wings a few times slowly while
watching the wing lock hooks to be
sure they are operating properly.