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GENERAL OPERATION
1. Before operating disc, refer to Safety Precautions on pages 2 to 4. Review disc safety items applicable to road transport and field
operation of disc.
2. IMPORTANT: WHEN LOWERING WING TO FIELD POSITION, BE SURE WING LIFT CYLINDER IS FULLY EXTENDED. AFTER WING TIRES
HAVE HIT THE GROUND CONTINUE TO HOLD HYDRAULIC LEVER. THERE WILL BE A SHORT PAUSE BEFORE CYLINDERS
FULLY EXTEND. IF CYLINDER IS NOT FULLY EXTENDED, THE WING WILL HANG ON CYLINDERS AND WILL NOT FLEX
DOWN.
CAUTION: NEVER STAND BETWEEN THE TRACTOR AND DISC WHEN HITCHING DISC TO THE TRACTOR UNLESS ALL TRACTOR
CONTROLS ARE IN NEUTRAL AND THE PARK BRAKE IS SET. THE TRACTOR COULD ROLL BACKWARDS WHICH
COULD RESULT IN SERIOUS INJURY OR DEATH TO YOU OR PERSONS NEARBY.
3. For best performance, the tractor drawbar should be pinned at centre of tractor.
4. Ensure disc is level and cutting depth is properly adjusted. If further adjustments are required, see pages 10 to 15.
5. Do not make sharp turns with the disc in ground. Sharp turns put excess pressure on the gangs.
IT IS ADVISABLE TO ALWAYS LIFT MACHINERY OUT OF GROUND FOR MAKING SHARP TURNS. EXCESSIVE SIDE THRUST IS APPLIED
TO BEARINGS AND MACHINE IF DISC IS TURNED WHILE IT IS IN THE GROUND.
6. In discing conditions where extreme wing flexibility is required, remove cylinder pin from shaft end of wing lift cylinder and retract
cylinder.
7. See Fig. 1. When transporting disc, always place
hydraulic lockup valves in closed position. Lock up
valves are located at the front end of centre frame.
CAUTION: WHEN TRANSPORTING DISC ALWAYS
PLACE BOTH HYDRAULIC LOCK UP
VALVES IN “CLOSED” POSITION. IF
HYDRAULIC LEVER WAS ACCIDENTALLY
OPERATED THE DISC COULD DROP OR
WING COULD FALL.
8. See Fig. 2. When transporting disc always place the
complete depth control package 17" (432 mm) long on
shaft of 3-1/2" x 24" (88.9 mm x 610 mm) main frame
lift cylinder.
CAUTION: WHEN TRANSPORTING DISC ALWAYS
INSTALL THE COMPLETE PACKAGE OF
DEPTH CONTROL STOPS 17" (432 mm)
LONG ON SHAFT OF MAIN FRAME
CYLINDER. IF ANY COMPONENT OR
HYDRAULIC SYSTEM FAILED DISC
COULD DROP CAUSING SERIOUS
INJURY OR DEATH TO OPERATOR OR
PERSON(S) NEARBY.
9. IMPORTANT: WHEN TRANSPORTING DISC, DO NOT EXCEED SPEED OF 10 MPH (16 KM/H).
10. IMPORTANT: DO NOT DISC WITH FRONT GANGS CUTTING DEEPER THAN REAR GANGS. DISC MUST BE LEVEL. IF FRONT GANGS
ARE LOWER, EXCESSIVE STRAIN WILL BE PLACED ON BLADES, GANG BEARINGS AND FRAME HITCH, WHICH COULD
LEAD TO PREMATURE PARTS FAILURE, ESPECIALLY OUTSIDE BLADES OF FRONT GANGS.
11. IMPORTANT: WHEN DISC IS PARKED WITH BLADES RESTING ON FROZEN GROUND, DO NOT ATTEMPT TO LIFT DISC OUT OF FROZEN
GROUND BY LOWERING TRANSPORT WHEELS. LIFTING DISC OUT OF FROZEN GROUND WITH TRANSPORT WHEELS
MAY CAUSE SERIOUS DAMAGE TO DISC COMPONENTS. DAMAGE WILL MOST LIKELY OCCUR TO MAIN LIFT CYLINDERS
AND ROCKSHAFT CYLINDER ARMS. DO NOT PARK DISC WITH BLADES ON GROUND THAT MAY FREEZE. LEAVE DISC
PARKED ON TRANSPORT WHEELS.
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