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12
Section 1: Assembly and Set-Up
RCR1542 and RCR1548 Rotary Cutters 312-556M
11/25/15
Table of Contents
Check Clearances
1. Return to tractor and slowly raise and lower
implement carefully to ensure drawbar, tires, and
other equipment on the tractor do not make contact
with cutter frame and driveline. Move or remove
drawbar if needed.
2. Manually adjust one of the two lower 3-point lift arms
up or down to level the Rotary Cutter from left to right.
Final adjustments will be made later during “Deck
Leveling & Height Adjustments” on page 14.
Check Driveline Collapsible Length
1. Make sure driveline is properly installed and level
before checking driveline collapsible length. (Refer to
“Check Driveline Collapsible Length” instructions
on page 12.)
Refer to Figure 1-5:
2. With driveline level, measure 1" (“B” dimension)
back from universal joint shield to end of outer
driveline shield as shown in Figure 1-5.
3. If measurement is 1" or more, skip to “Check
Driveline Interference” on right side of this page. If
measurement is less than 1", shorten driveline using
instructions provided below.
Driveline Shortening
Figure 1-5
Shorten Driveline
Be sure to first check driveline collapsible length above. If
required, shorten driveline as follows:
Refer to Figure 1-5:
1. Unhook driveline from tractor PTO shaft and pull
outer and inner drivelines apart.
2. Reattach outer driveline to tractor PTO shaft. Pull on
inner and outer drivelines to be sure universal joints
are properly secured.
IMPORTANT: A driveline that is too long can bottom
out causing structural damage to tractor and cutter.
Always check driveline collapsed length during initial
setup, when connecting to a different tractor, and
when alternating between using a quick hitch and a
standard 3-point hitch. More than one driveline may
be required to fit all applications.
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3. Hold inner and outer drivelines parallel to each other:
a. Measure 1" (“B” dimension) back from outer
driveline universal joint shield and make a mark at
this location on the inner driveline shield.
b. Measure 1" (“B” dimension) back from the inner
driveline universal joint shield and make a mark at
this location on the outer driveline shield.
4. Remove driveline from tractor and gearbox shafts.
5. Measure from end of inner shield to scribed mark
(“X” dimension). Cut off inner shield at the mark. Cut
same amount off the inner shaft (“X1” dimension).
6. Measure from end of outer shield to scribed mark
(“Y” dimension). Cut off outer shield at the mark. Cut
same amount off the outer shaft (“Y1” dimension).
7. Remove all burrs and cuttings.
8. Apply multi-purpose grease to the inside of the outer
shaft and reassemble driveline.
9. Reattach driveline to cutter and tractor. Refer “Check
Driveline Collapsible Length” instructions on
page 12.
10. Continue with “Check Driveline Interference”
below.
Check Driveline Interference
1. Make certain driveline yokes are properly attached.
2. Start tractor and raise cutter up just enough to
remove support blocks. Remove support blocks.
3. Slowly engage tractor hydraulic 3-Point control lever
to lower cutter while checking for sufficient drawbar
clearance. Move drawbar ahead, aside, or remove if
required.
Refer to Figure 1-6:
4. Raise and lower implement to find maximum
extended driveline length. Check to make certain
driveline does not exceed 25
o
up or down.
5. If needed, set tractor 3-Point lift height to keep
driveline from exceeding 25
o
up.
Maximum PTO Driveline Movement During Operation
Figure 1-6
IMPORTANT: Avoid premature driveline breakdown.
A driveline that is operating must not exceed an
angle of 25 degrees up or down while operating 3-
point lift.
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