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Section 2: Hydraulic Set-up Options
Independent Control
With the Independent Control option, only the breakaway
cylinder is operated by tractor hydraulics. All other
hydraulics on the cutter are self contained using only the
oil in the reservoir to run the cylinders and deck motor.
Both, Independent and Solenoid Control options rely
upon the solenoid valve block to control "ARM 1" ,
"ARM 2" , and "Deck Pivot" cylinders.
Refer to Figure 2-5:
1.
Set flow control valve on the solenoid valve block to
"OPEN" by turning flow control knob "COUNTER
CLOCKWISE" until knob stops turning.
The Independent Control Option is designed to
produce the correct volume flow of hydraulic oil to the
hydraulic cylinders. The flow control valve shown in
Figure 2-4 on page 24 is not needed.
Solenoid Valve Block Without Deck Float Capabilities
Figure 2-5
Solenoid Valve Block With Deck Float Capabilities
Figure 2-6
Solenoid Valve Block Functions
Refer to Figure 2-6:
A solenoid valve block is included on cutters with
Independent Control and Solenoid Control. If Gauge
Wheel Option is included, the solenoid valve block must
have two poppet valves on top to allow the deck to float
on its gauge wheels. See Figure 2-6 for illustration of
poppet valves.
11/2/18
Table of Contents
1.
Consult the tractor's manual to determine the
tractor's hydraulic system (System A, B, or C below):
A. Closed Center System With PC & LS
B. Closed Center System Without PC or LS
C. Open Center System
2. Remove plastic cover located at the rear of the
solenoid valve block.
3. Adjust flow control valve Knob at the solenoid valve
block and flow control valve on the 3-point frame:
A. Closed Center System With PC & LS:
27970
Poppet Valves For
Deck Floating
B. Closed Center System Without PC or LS:
24637
C. Open Center System:
RCP2660, RCPM2660, RCP3060 & RCPM3060: Parallel Arm Rotary Cutter: 316-111M:
PC = Pressure Compensating
LS = Load Sensing
IMPORTANT: Tractors with this system must
have variable flow control (turtle/rabbit control).
IMPORTANT: A tractor with this system
MUST HAVE VARIABLE FLOW CONTROL
(turtle/rabbit control) at the duplex outlet. Using
a tractor without variable flow control will cause
the oil to over heat and damage seals in the
solenoid valve block.
Set flow control valve on the solenoid block to
"OPEN" by turning the flow control valve knob
"COUNTER CLOCKWISE" until knob stops
turning. (See Figure 2-5.)
See Figure 3-1 on page 32: Set flow control valve
knob on the 3-point frame to the lowest possible
number to allow maximum oil flow.
Adjust hydraulic flow to the solenoid block using
"Turtle/Rabbit Flow Control at the Tractor"
instructions on page 32.
Set flow control valve on the solenoid valve block
to "CLOSED" by turning knob "CLOCKWISE" until
it stops turning. (See Figure 2-5.)
If the tractor's duplex outlet has turtle/rabbit
control, adjust hydraulic flow to the solenoid block
using "Turtle/Rabbit Flow Control at the
Tractor" instructions on page 32. Be sure to set
flow control valve knob on the 3-point frame (See
Figure 3-1 on page 32) to the lowest possible
number.
If tractor does not have turtle/rabbit control, adjust
flow control valve knob using instructions for "Flow
Control Valve on the Rotary Cutter" on page 32.
Set flow control valve on the solenoid valve block
to "OPEN" by turning knob "COUNTER
CLOCKWISE" until it stops. (See Figure 2-5.)
Adjust hydraulic flow to the solenoid block using
"Turtle/Rabbit Flow Control at the Tractor"
instructions on page 32. Be sure to set flow control
valve knob on the 3-point frame (See Figure 3-1 on
page 32) to the lowest possible number.
25
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