Section 3: Adjustments
3/12/21
RCP(M)2760 & RCP(M)3760 Parallel Arm Rotary Cutter 316-548M
38
Section 3: Adjustments
Cycle Time (Fully Extended to Fully Retracted)
Figure 3-1
Tractor Control Levers
72906
72910
1. Set cutter in the folded transport position. (All parallel
arm and deck cylinders will be fully retracted and in
the transport position.)
2. Operate tractor control lever for ARM2 hydraulic
cylinder to raise the outboard arm fully up as shown.
3. Operate tractor control lever for ARM2 hydraulic
cylinder to lower the outboard until it is fully down.
Time how long it takes for the arm to cycle from fully
up to fully down.
4. Adjust turtle/rabbit control at the tractor for ARM2
control lever until cycle time for the hydraulic cylinder
to go from fully extended to fully retracted in 5
seconds.
5. Repeat steps 2-4 for ARM1 and DECK cylinders.
If the cutter is having hydraulic overheating problems and
the turtle/rabbit flow control valves have been set
correctly, then check tractor Operator’s Manual for power
beyond hook-up.
Hydraulic Flow Control
Independent Control is factory set to operate hydraulic
cylinders at the correct speed. Tractor Control cylinders
will require some flow control adjustments. To function
properly, the cycle time for the hydraulic cylinders should
be 5 seconds.
Turtle/Rabbit Flow Control at the Tractor
Refer to Figure 3-1:
The tractor’s turtle/rabbit flow control valves are used
when all hydraulic connections are connected directly to
the tractor outlets.
NOTE:
If your tractor does not have flow control
(turtle/rabbit control) or if the tractor uses an open
center hydraulic system, then the flow control valve
kit #316-068K must be purchased. Check your
tractor Operator’s Manual to determine your
tractor’s set-up.