RCI 186M, Руководство оператора, Страница: 25 / 72

24
Changing Between Closed- and Open-
Center Hydraulics
The default configuration for the hydraulic
manifold is for Closed-Center Hydraulics.
Note: A different manifold is used starting
with serial number RCIX00835. Units built
prior to this serial number break do not
feature the ability to switch between open-
center and closed-center tractors and do not
have flow control built into the manifold.
For units with earlier serial numbers, the belt
motor circuit is equipped with a fuse to
prevent over speed and implement damage.
If hydraulic flow exceeds 11 gpm (42 lpm),
the fuse will trip. To reset the fuse, release
all hydraulic pressure on the motor circuit
through the float position of the tractor
hydraulic function. Resume operation once
reset.
On units with serial number 835 and above,
change from closed- to open-center by
removing the plugs inside the PLG ports and
store them in the machined ports in the
manifold as indicated in Figure 18.
Reinstall outer plugs when complete.
To revert back to closed-center hydraulics,
reinstall the plugs under the cartridges.
Pickup Speed Adjustment – Open Center
Systems
The tine speed is adjustable in series with
the belt speed by adjusting hydraulic oil
flow.
WARNING:
Only adjust the belt speed when the tractor
is turned off, park brake is set, key is
removed, and all pressure is relieved from
the system and unit is lowered to the ground.
IMPORTANT:
For open-center tractors, see previous
section.
There are two flow control valves on the
manifold. The third, silver handle is the
valve used to engage/disengage the
extension motor. Each valve is also labeled
on the manifold with engraved letters.
There is one valve for belt forward speed
and one for belt reverse speed. See Fig. 19.
To adjust the pickup and belt speed, first
loosen the lock collar at the speed control
valve of the manifold. Turn the valve
clockwise (in) to decrease speed and
counterclockwise (out) to increase speed.
IMPORTANT:
The valves are to be only adjusted by hand.
Do not use tools as implement damage may
result.
Figure 18. Plug Locations
Key 1 -PLG1 Port Key 2 – PLG2 Port
Key 3–Plug 1 Storage Key 4–Plug 2 Storage
Figure 19. Pickup Speed Adjustment
Key 1 – Forward Flow Control
Key 2 – Lock Ring
Key 3 – Reverse Flow Control