27
Section 3: Adjustments
RCR2596, RCR2510, and RCRM2510 Rotary Cutters 312-753M
7/29/20
3-Point Leveling & Cutting Height
See page 26 for
“Pull-Type Leveling & Cutting Height”
.
There are four primary adjustments that should be made
prior to actual field operations:
•
Deck Leveling From Left to Right
•
Deck Leveling From Front to Rear
•
•
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 carpenter’s level
•
Open end or hex end wrench or socket set
•
Protective gloves
WARNING
!
To avoid serious injury or death:
Always follow “Tractor Shutdown Procedure” provided in
this manual before dismounting the tractor.
Deck Leveling
Figure 3-3
Deck Leveling From Left to Right
Refer to Figure 3-3:
Rotary Cutter must operate level from side to side at all
times. Make certain gauge wheels are adjusted to
identical heights before adjusting lower 3-point lift arms.
1. Having completed
“Tractor Hook-up”
, locate tractor
and cutter on a flat, level surface.
2. Use tractor’s hydraulic 3-point control lever to lower
cutter until tailwheels make contact with the ground.
3. Place a spirit level (#1) or other suitable leveling
device on the front of the cutter deck.
4. Adjust either one or both of the tractor’s lower 3-point
lift arms to level the deck from left to right. Some
tractors have only a single adjusting lift arm.
22315
Deck Leveling From Front to Rear
Refer to Figure 3-4:
WARNING
!
To avoid serious injury or death:
Avoid direct contact with cutter blades by wearing a pair of
gloves. Cutter blades have sharp edges and burrs that can
1. Using tractor’s 3-point hydraulic control, raise or
lower 3-point arms until front of deck is slightly lower
than deck rear.
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 3-4.
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 control stop at this height.
Figure 3-4
Center Link Adjustment
Refer to Figure 3-4:
1. Lower cutter deck to the nominal cutting height.
2. Adjust the top center 3-point link until the cutter hitch
pin is vertically above the lower lift arm hitch pins.
3. Lock center link in this position once correct length is
achieved.
The front blade tip should be lower
than rear blade tip by approximately 1". The cutter is
subject to continuous material flow under the deck if
the rear blade is at the same height or lower than the
front blade causing horsepower loss, grass clumps,
blade wear, and frequent blade sharpening.
22316
Front Blade Tip
Rear Blade Tip
Vertical Alignment