Land Pride RCP2660, RCP3060 manual Hydraulic Flow Control Settings, Adjustments, Table of Contents

Land Pride

Section 2: Adjustments

Table of Contents

Hydraulic Flow Control Settings

The hydraulic cylinders require 5 GPM (gallons per minute) to function properly. This is set by adjusting the flow control valve(s) and then timing how long it takes for the cylinder to fully retract. The valve is adjusted correctly when it takes 5 seconds to retract.

Cutter Flow Control

Refer to Figure 2-1:

IMPORTANT: Oil overheating may occur if flow control is not achieved. Damage to o-rings in the solenoid valve and/or in the cylinders may occur if oil becomes overheated.

An auxiliary flow control valve is included with the cutter when provided with solenoid controlled cylinders. The flow control valve diverts excess oil back to the tractor keeping oil cooler and back pressure down.

22010

Plumbing shown is for tractors with hydraulic oil flow rate of 15 GPM and under.

Flow Control Valve for Solenoid Operated Cylinders

Figure 2-1

Refer to Figure 2-2:

1.Set Rotary Cutter in folded transport position. (All parallel arm and deck cylinders are fully retracted when in transport position.)

2.Press and hold “ARM 2 OUT” push button switch to fully raise outboard arm up. Release switch when cylinder is fully extended.

3.Press and hold “ARM 2 IN” push button switch and time how long it takes to cycle from fully extended to fully retracted.

4.Adjust flow control knob (See Figure 2-1) until cycle time is 5 seconds.

Tractor Flow Control

Refer to Figure 2-2:

NOTE: Parallel Arm Cutters with (S/N 163695-) will require flow control valve kit #316-068K if your tractor does not have flow control (turtle/rabbit control) or if your tractor uses an open center hydraulic system. Check your tractor’s operator’s manual to determine your tractor’s set-up.

The tractor’s turtle/rabbit flow control valves are used when all hydraulic connections are connected directly to the tractor outlets.

1.Set cutter in folded transport position. (All parallel arm and deck cylinders are fully retracted when in transport position.)

2.Operate tractor “ARM 2” lever to raise outboard arm fully up as shown.

3.Operate tractor “ARM 2” lever to fully retract outboard arm and time how long it takes to cycle from fully extended to fully retracted.

4.Adjust turtle/rabbit control until cycle time is 5 seconds.

5.Repeat steps 2 and 3 for “ARM 1” 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.

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Cycle Time (Fully Extended to Fully Retracted)

Figure 2-2

12/16/08 RCP2660, RCPM2660, RCP3060 and RCPM3060 Parallel Arm Rotary Cutter 316-111M 25