Hitch Controlled Lift Assist Wheels-8000 Series Row-Crop Tractors
IMPORTANT:
Tractor must be equipped with lift assist wheel hitch control components (see your John Deere dealer for installation instructions [A67428]).
Hoses may become pinched or cut when raising or lowering machine. Move all hoses clear of any pinch points.
Machine must be leveled before adjusting single lever control attachment.
NOTE:
If existing 3 in. x 8 in. lift cylinders retract while in transport, when machine is equipped with heavy attachments, a conversion to 4 in. x 8 in. lift cylinders may be required. See your John Deere dealer.
NOTE:
All new machines require 4 in. x 8 in. lift assist wheel cylinders when controlled by and 8000 series hitch circuit.
NOTE:
This system allows the lift assist wheels to be operated by oil flow from the hitch.
The markers can be hooked to the lift system for automatic operation (see your John Deere dealer).
This system can only be installed on machines with drive gauge wheels mounted to the rear and equipped with either a pivoting center mast or rigid mast with top pin removed (can not be used on 12-row 56 cm [22 in.] machines). Lift assist wheel-hitch control attachment allows the machine to be raised and lowered with the rockshaft control lever. Lift assist cylinders are single acting with this system, the lift assist wheels remain in contact with the ground at all times.
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