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Section 3: Operating Instructions
Field Set-up
!
WARNING
To avoid serious injury or death:
•
The following operational procedures should be carried out
by the tractor operator. Other persons should not be in the
area. All cutter operations including field set-up should be
stopped when other persons are in the vicinity.
•
Clear area to be cut of debris and other unforeseen
removable objects before cutting. Mark non-removable
hazards such as tree stumps, post stubs, protruding objects,
rocks, drop-offs, holes, etc. with a visible flag.
IMPORTANT: Cutting should not be done in wet
conditions. Wet material will build up on the deck
underside creating need for additional horsepower,
high wear, and poor discharge.
Field Inspection
Thoroughly inspect area to be cut for debris and
unforeseen objects. Remove all potential hazards and
mark any that cannot be removed.
33869
Wing Deck Blade Positioning
Figure 3-5
Unfold Wings and Set Deck Cutting Height
Refer to Figure 3-5:
IMPORTANT: Cutting blades may become locked
together (overlapped) when the wings are raised for
transport. Operating cutter in this condition will result
in severe deck vibration. Inspect wings for locked
blades prior to power-on operation.
1.
Inspect blade carriers for locked blades prior to
lowering the wings. Separate locked blades.
2. Start tractor and raise both wings up to release any
tension on the transport lock bars.
3. Without lowering the cutter, shut tractor down before
dismounting. Refer to "Tractor Shutdown
Procedure" on page 17.
34
RC3620 & RCM3620 Rotary Cuters 330-841M
Table of Contents
Blade Carrier
Cutting
Blades
Refer to Figure 3-4 on page 33:
4. Remove hairpin cotter (#1) and transport lock
bar (#3) from cylinder pin (#4) on both wing sections.
Refer to Figure 3-3 on page 33:
5. Rotate end of transport lock bar (#3) up to storage
lug (#2). Secure with hairpin cotters (#1).
6. Start tractor and lower both wings down.
7.
Adjust cutter to field cutting height. See "Adjust Deck
Cutting Height" on page 29.
Set Wing Folding Lever In Float Position
IMPORTANT: The wing folding levers should be in
float position to avoid damage to the wing hydraulic
cylinders and axles while cutting on uneven terrain.
Use the float position of your tractor's hydraulic system to
provide automatic floating of the wings for varying terrain
conditions. This will ensure that the wing gauge wheels
are in continuous contact with the ground at all times.
Rephasing Lift Cylinders
The rephasing lift cylinders will not function properly if
they are out of phase. This will be noticeable when one
deck is higher or lower than another deck. Retracting one
lift cylinder, more than the other, can cause this situation.
Some tractors with pressure detents will not allow the
hydraulic systems to rephase automatically. To manually
rephase lift cylinders, raise cutter completely up and hold
the tractor hydraulic lever on a few more seconds to give
the cylinders time to rephase. Do this each time you raise
the cutter and when the decks are uneven.
Momentarily reversing the hydraulic lever immediately
after rephasing the lift cylinders allows the cylinders to
retract about 1/2" and will help maintain a level cutter
during transport.
Select Gear Range
Optimum ground speed depends on density of material
being cut, horsepower rating of tractor, and (in some
cases) terrain. Always operate tractor at the cutter's
full-rated power take-off speed in a gear range that allows
the cutter to make a smooth cut without lugging the
tractor down, usually between 2 to 5 mph. Loss of power
take-off speed will allow the blades to hinge back and
result in ragged, uneven cutting.
9/25/18
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