21
SECTION 2: ADJUSTMENTS
DECK LEVELING & CUTTING HEIGHT
There are 4 primary adjustments that should
be made prior to actual field operations:
•
Deck leveling Left to Right
•
Cutting Height Adjustment
•
Center 3-Point Link Adjustment
•
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 carpenter’s level
•
Open and or Hex end wrench or socket
set
•
Protective gloves
WARNING
To avoid serious injury or death:
Always disengage power take-off, put tractor in
park or set park brake, shut tractor engine off,
remove ignition key, and wait for blades to
come to a complete stop before dismounting
tractor.
DECK LEVELING LEFT TO RIGHT
1.
Locate tractor with Rotary Cutter on a
flat, lever surface.
2.
Use tractor’s hydraulic 3
-point control
lever to lower cutter until the tailwheel
contacts the ground surface.
3.
Place a level on the front of the cutter
deck. Manually adjust either one or both
tractor’s
lower 3-point arms to level the
deck from left to right. Some tractors
have only a single adjusting arm.
CUTTING HEIGHT ADJUSTMENT
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 cause injuries.
IMPORTANT:
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.
1.
Using t
ractor’s 3
-point hydraulic control,
raise or lower than the 3-point arms
until the front of the deck is slightly
lower than the rear of the deck.
2.
The top center link typically is adjusted
with the upper clevis pin vertically above
lower than hitch pins. As show in Figure
2-1.
3.
With gloves on, carefully rotate each
blade tip to the position shown in figure
2-1.
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
page 22.
6.
Repeat steps 1 to 5 until desired cutting
height is achieved.
7.
Set tractor’s 3
-point hydraulic control
stop at this height.
