Hydraulic Fold System - Landoll 6230 Series Operator's Manual

4-5 HYDRAULIC FOLD SYSTEM

4-5.1 The disc is equipped with a hydraulic
fold system to raise and lower the wing
frames for narrow transport.
4-5.2 Be sure the system is fully charged with
hydraulic oil before attempting to fold/unfold
the unit. Air in the system can allow uncon-
trolled dropping of the wing frames causing
serious personal injury or machine damage.
The system needs to be charged with oil ini-
tially and any time the system has been
opened for repair such as cylinder, hose, or
fitting replacement/repair.
4-5.3 To charge the system, carefully hitch
the disc to the tractor. Unpin the end(s) of
the fold cylinders, and position them so they
can extend and retract without contacting
any frames or other parts. Check the tractor
hydraulic fluid level to make sure it is full of
the manufacturer's recommended hydraulic
fluid. Connect the cylinder hoses to the trac-
tor and fully extend and retract the cylinders
several times. The cylinder rod travel should
be smooth and positive when all air has
been purged from the system. Due to large
amounts of hydraulic oil required, recheck
the tractor fluid level to make sure it is within
proper operating limits.
4-5.4 The hydraulic fold system is equipped
with restrictors in the rod end of cylinders to
prevent uncontrolled falling of wing frames
when unfolding. Removal or improper as-
sembly of these restrictors can cause the
machine to fold improperly and result in seri-
ous machine damage.
WARNING
ESCAPING HYDRAULIC FLUID CAN
CAUSE SERIOUS PERSONNEL IN-
JURY. RELIEVE SYSTEM PRESSURE
BEFORE REPAIRING, ADJUSTING, OR
DISCONNECTING. WEAR PROPER
HAND AND EYE PROTECTION WHEN
SEARCHING FOR LEAKS. USE CARD-
BOARD INSTEAD OF HANDS (SEE FIG-
URE 4-2). KEEP ALL COMPONENTS
(CYLINDERS, HOSES, FITTINGS, ETC.)
IN GOOD REPAIR.
4-5