Owner manual

4-4 F-140-0512 Edition
OPERATION AND MAINTENANCE
Field Operation
1. Remove the stabilizer bars or sway blocks from the
drawbar assembly on the tractor.
2. Pull the cultivator a few feet at the approximate
desired depth and speed you intend to maintain
during use. Adjust the cultivator properly according to
the procedures described in “Gauge Wheel
Adjustment” on page 4-5, “Coulter Adjustment”
on page 4-5, “Disc Adjustment” on page 4-7,
“Disc Bearing Maintenance” on page 4-7, “Tool
Frame” on page 4-8, “Ridgers and Knives” on
page 4-8, “Shields” on page 4-9, and “Lift Assist
Wheel” on page 4-9.
3. Always lift the cultivator completely out of the
ground before turning or backing to prevent
shank, disk, or coulter damage, or damage to their
respective mounting brackets.
4. Reduce speed at field ends, raise the cultivator out
of the ground, and if needed, assist turning by using
the wheel brakes. Do not lower the cultivator into the
ground during turning operations.
5. After a few hours of operation, check all bolts for
tightness. Tighten any loose bolts.
6. When folding wings on wing fold models always
be sure that the wings are out of the ground
before folding. When unfolding the wings, leave
the hydraulic lever in the “EXTEND” position for
a few seconds to lock the wings in operational
position.
7. READ WARNINGS ON THIS PAGE.
8. The Nitrogen accumulator (See Figure 4-9) on the
Lift Wheel Assist provides protection for the hitch
mast and tractor three-point top link, when fully
mounted. It also serves as a cushion to shock loads
when the raised implement is maneuvered. Oil is
transferred from the cylinder to the Nitrogen
accumulator while moving over uneven ground to
relieve excess stress. After moving back to level
ground, pressure build-up within the accumulator
forces oil back into the cylinder. This provides lift
assist, which is preset by the adjustment screw. See
“Lift Assist Wheel” on page 4-9 BEFORE adjusting
this screw.

WARNING

WARNING
An escaping hydraulic oil under pressure can
produce enough force to penetrate the skin,
causing serious personal injury. Before applying
pressure to the system, be sure all connections
are tight and that lines, pipes, and hoses are not
damaged. Before disconnecting lines, be sure to
relieve all pressure. Hydraulic oil escaping from a
very small hole can be almost invisible. Use a
piece of cardboard or wood, not your hands, to
search for suspected leaks.
If injured by escaping hydraulic oil, see a doctor
at once. Serious infection or reaction can develop
if proper medical treatment is not administered
immediately.
To avoid personal injury, stay clear of lift assist
wheel and implement during operation. Perform
any adjustments or service on implement when it
is in lowered position.