Art's-Way Manufacturing 6812B, Operator'S Manual

Page: 46 / 72

Manual No. 590770 (August 2012) ART’S-WAY MANUFACTURING COMPANY, INC.
40
HARVESTER ADJUSTMENTS
HYDRAULIC SYSTEM
Refer to Figure 76 for the Tractor/Harvester Hydraulic
System and Figure 77 for the Harvester Self-Contained
Hydraulic System. Both of these
fi gures will show speci fi c
routings and components.
Tractor/Harvester Hydraulic System
The fi ve hydraulic circuits are noted as follows:
1. Truck Conveyor Drive Motor And Transfer Conveyor
Lateral Movement
a. Connect to the No. 2 priority valve, if applicable.
b. The circuit has a check valve installed to allow for
operation in only the proper direction.
c. Set the speed with the tractor fl ow control.
d. The cylinder for lateral movement of the transfer
conveyor is also tee’d into this circuit. When the
truck conveyor motor is turned off, the reverse
direction moves the transfer conveyor left as the
operator chooses. When the truck conveyor is
started, the transfer conveyor moves back right at
a speed controlled by the needle valve.
2. Main Machine Lift Cylinder
a. Connect to the No. 2 priority valve, if applicable.
b. The lift cylinders are equipped with an adjustable
nut. Add segments on the cylinder rod to control
the depth of the machine.
c. This will most likely work best at a mid-range fl ow.
3. Row fi nder Operation (Valve and Cylinder)
a. If a power beyond circuit is used, it should be
connected to this function. Check with dealer for
proper connection.
b. This circuit normally requires 5 to 7 gpm to operate.
The circuit has an ori
fi ce restrictor to control this
fl ow if connected to the power beyond circuit.
c. If this circuit is connected to a regular outlet, the
fl ow should be reduced to the minimum needed. It
may be desirable to remove the restrictor.
4. Row fi nder Override to Cylinder
a. Reduce fl ow to a comfortable speed for you.
b. A restrictor also in this circuit.
5. Operates the cylinders for the two cylinders that raise
and lower the truck elevator. The lock valves mounted
on the cylinders prevent the truck elevator from falling,
if a hose should break.
SAFETY
INSTRUCTIONS
Never remove the lock valves.