Deck Leveling & Height Adjustments

Table of Contents

Section 3: Adjustments

There are 4 primary adjustments that should be made prior to actual field operation:

1.Deck Leveling From Left to Right

2.Deck Cutting Height

3.Center 3-Point Link Length

4.Tailwheel Height Adjustment

Proper adjustment of each of these items will provide for higher efficiency, improved cutting performance and longer blade life. The following tools will be needed:

•Pliable tape measure

•Spirit or carpenters level

•Open end or hex end wrench or socket set

•Protective gloves

!DANGER

Engage parking brake, disengage PTO, shut off tractor and remove key before proceeding. Ensure that all moving parts have come to a complete stop before dismounting the tractor.

Deck Leveling From Left to Right

Refer to Figure 3-1:

1.Locate tractor with Rotary Cutter on a flat, level surface.

2.Use tractor’s hydraulic 3-point control lever to lower cutter until the tailwheel makes contact with the ground surface.

3.Place a level or another suitable leveling device on the front of the cutter deck as shown in Figure 3-1. Manually adjust either one or both of the tractor’s lower 3-point arm height adjustments to level the deck from left to right. Some tractors have only a single adjusting crank.

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Deck Leveling

Figure 3-1

Deck Cutting Height

Refer to Figure 3-2:

!CAUTION

Wear a pair of gloves when checking cutting height. Avoid direct contact with cutting edge of blade.

IMPORTANT: The blades should be positioned to cut material only at the front of the cutter. If deck is level or back of cutter is lower than the front, then the blades are subject to continuous material flow resulting in additional blade wear, horsepower loss and frequent blade sharpening.

1.Using tractor’s 3-point hydraulic control, raise or lower the 3-point arms until the front of the deck is slightly lower than the rear of the deck.

2.The top center link should be loose when deck rear is supported by the tailwheel. If not, lengthen center link until loose. Final adjustment will be made later.

3.With gloves on, carefully rotate each blade tip to the position shown in Figure 3-2.

4.Measure distance from cutting tip of blade to ground surface. This distance is the cutting height.

5.If desired cutting height cannot be obtained by adjusting the lower 3-point arms, then readjust tailwheel height as instructed on page 15.

6.Repeat steps 1 to 5 until desired cutting height is achieved.

7.Set tractor’s 3-point hydraulic control stop at this height.

Cutting Height

Blade Tip

This End Should Be Slightly

Higher Than Cutting Height

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Cutting Height

Figure 3-2

14 RCR1860 and RCR1872 Series Rotary Cutters 312-849M

12/17/07