Section 3: Adjustments
RCR1242, RCR1248, RCR1260 & RCR1272 Rotary Cutter 326-047M
2/7/20
20
2. The top center link typically is adjusted with the
upper clevis pin vertically above lower hitch pins. as
shown in Figure 3-3.
3. With gloves on, carefully rotate each blade tip to the
position shown in Figure 3-2 on page 19.
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
6. Repeat steps 1 to 5 until desired cutting height is
achieved.
7.
Set tractor’s 3-point hydraulic control stop at this
height.
Center 3-Point Link Adjustment
Figure 3-3
Center 3-Point Link Adjustment
Refer to Figure 3-3:
1. Lower cutter deck to the nominal cutting height.
2. Typically the 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 center link in this position once correct length is
achieved. Adjustment on center 3-point link can be
made depending on customer’s preference.
NOTE:
Customer may adjust center 3-point link to
his or her preference. Lengthening 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 length center link to where the
cutter is carried too low.
Tailwheel Height Adjustment
Figure 3-4
Tailwheel Height Adjustment
Refer to Figure 3-4:
The deck slope should be adjusted so that the cutting
blades are slightly lower at the front of the cutter than at
the back. If they are not, the tailwheel must be adjusted
up or down until the deck slope is correct.
1. Make sure instructions for setting the
continuing with adjusting tailwheel height below.
2. Use tractor’s 3-point hydraulic control to lift tailwheel
off the ground.
3. Remove 3/8" carriage bolts (#1) and flange nuts (#2).
4. Adjust tailwheel as follows:
•
To lower blade height at the rear, raise tailwheel.
•
To raise blade height at the rear, lower tailwheel.
5. With tailwheel adjusted to the correct position,
replace 3/8" carriage bolts (#1) and whiz nuts (#2).
Draw whiz nuts up snug, do not tighten until after
rechecking deck cutting height.
6. Recheck deck cutting height. Refer to instructions for
7.
After the deck cutting height and tailwheel height are
adjusted correctly, tighten whiz nuts (#2) shown in
Figure 3-4 below to the correct torque.
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