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Section 3: Adjustments
11/25/15
RCR1542 and RCR1548 Rotary Cutters 312-556M
Table of Contents
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. See “Tailwheel Height
Adjustment” on this page.
6. Repeat steps 1 to 5 until desired cutting height is
achieved.
7. Set tractor’s 3-Point hydraulic control stop at this
height.
Tractor Center 3-Point Adjustment
Refer to Figure 3-3:
1.
Lower cutter deck to the nominal cutting height.
Deck Leveling
Figure 3-3
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2.
Typically the tractor center 3-point link is adjusted so
that the upper 3-point clevis pin is straight above the
lower 3-point hitch pins. This arrangement allows for
optimum ground contour following performance.
3.
Lock tractor center link in this position once correct
length is achieved. Adjustment on center 3-point link
can be made depending on customer’s preference.
Tailwheel Height Adjustment
Refer to Figure 3-4:
If deck slope is slightly lower at the front than at the back
and cutting height is not at the desired height, then the
tailwheel must be adjusted up or down as follows:
1. Use tractor’s 3-Point hydraulic control to lift cutter
until the tailwheel clears the ground.
2. Remove 3/8" carriage bolt (#1) and 3/8" flange
nut (#2).
3. Adjust tailwheel as follows:
• To lower cutting height, adjust tailwheel up.
• To increase cutting height, adjust tailwheel down.
4. With tailwheel adjusted to the correct height, replace
3/8" x 1" long carriage bolt (#1) and 3/8" flange
nut (#2). Tighten flange nut to the correct torque.
5. Readjust tractor’s lower 3-Point arm height as
needed. See section titled “Deck Leveling From
Front to Rear” on page 14.
NOTE: Customer may adjust tractor center 3-point
link to his or her preference. Lengthening tractor
center 3-point link allows more movement while
going over raised surfaces. Shortening the link
allows more movement while crossing over ditches.
Also, shortening center link allows the cutter to be
carried higher while traveling. Never lengthen center
link to where the cutter is carried too low.
Tailwheel Height Adjustment
Figure 3-4
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