Field Operation - Yetter 3400 Series Operator's Manual

PRE-OPERATION CHECK LIST:
Use this checklist each time you operate the hoe in the field. It will help you obtain
satisfactory field operation quickly.
1. Tractor sway blocks in upper position.
2. Center link adjusted for level frame in field operation.
3. Tractor lift links set in lateral float.
4. Tractor rockshaft control lever set in "zero"
5. Check hoe for loose or missing parts. Tighten hardware where necessary.
6. Bent hoe teeth straightened or replaced.
7. Hitch pins fastened and correct spacers used.
8. Quick couplers locked.
9. Adequate ballast added to front of tractor.
IMPORTANT: NEVER BACK UP WITH ROTARY HOE IN THE GROUND.
NEVER TURN WITH THE HOE IN ITS DOWN POSITION.
OPERATING SPEED:
An operating speed of 5 to 8 mph will normally provide the best results. Higher speeds
tend to increase the teeth penetration.
MAIN FRAME HEIGHT:
The mainframe height during field operation will normally be about 22 inches to bottom of
frame.
Without gauge wheels, set the tractor rockshaft control lever to obtain the desired frame
height.
With frame gauge wheels, put the rockshaft control lever all the way forward to lock "it" in
the float position, which will enable the frame gauge wheels to maintain the frame at a
uniform height from the ground.
LEVELING MAIN FRAME
Adjust lift links and center link as necessary to make hoe level and perpendicular to the
ground.
Before activating/folding hinge check for obstructions, especially check gauge wheel
positions to ascertain proper tractor and cab clearance.
NOTE: If gauge wheels are to be used, make leveling adjustments after gauge wheels
are installed.
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FIELD OPERATION