GREAT PLAINS RC4015, Operator'S Manual

Page: 31 / 60

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Section 3: Operating Instructions
9/19/16 RC4015 & RCM4015 Rotary Cutters 334-300M
Table of Contents
8. Raise center deck fully up.
9. Shut tractor down properly without lowering
implement. Refer to
“Tractor Shutdown Procedure”
on page 13.
10. Place sturdy support blocks or jack stands under the
four center deck corners.
11. Start tractor and lower center deck down onto the
supports.
12. Shut tractor down properly before dismounting.
13. With cutter resting on solid supports, PTO
disengaged, and blade rotation completely stopped:
•
Check for and remove foreign objects wrapped
around blade spindles.
•
Check for nicked, bent, broken, and worn cutting
blades. Replace or sharpen blades as required.
Refer to
“Cutter Blade Maintenance” on page 40.
14. Inspect hydraulic hoses for wear, damage, and
hydraulic leaks. Before checking for leaks, read
“Avoid High Pressure Fluids Hazard” on page 3.
Replace damaged and worn hoses with genuine
Great Plains parts.
15. Make repairs to cutter and tractor before continuing
with “Blade Operation Inspection” on this page.
Avoid Extreme Turning Angles
Refer to Figure 3-1 & Figure 3-2:
Plan your field cutting to minimize number of turns,
especially extreme turning angles. Avoid tractor-to-cutter
turning angles that exceeds driveline maximum turning
angle. If the turn cannot be avoided, disengage tractor
PTO and wait for the driveline to stop rotating before
making the turn.
•
Standard Conventional Driveline:
Maximum turning angle = 35
o
.
•
Constant Velocity Driveline:
Maximum turning angle = 80
o
.
Standard Conventional U-Joint Driveline
Figure 3-1
Constant Velocity (CV) Driveline
Figure 3-2
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Blade Operation Inspection
!
DANGER
Tractor PTO shield and gearbox shaft shields must be secured
in place when operating cutter to avoid injury or death from
entanglement in driveline.
!
WARNING
Always disengage PTO, place tractor in park or set park
brake, shut tractor engine off, remove switch key, and wait for
blades to stop before dismounting from tractor.
1. Make sure cutter blades are not locked against each
other. See
“Field Set-up” on page 31.
2. Remove support blocks or jack stands and set
transport locks for field operations. See
“Transport
Locks” on page 30
3. Lower cutter decks down until blades are about 2" off
the ground.
4. Start tractor and set throttle speed just above idle.
Use tractor’s PTO soft start option if available. Slowly
engage PTO to get blades rotating. (Also see
“Engage Blades” instructions on page 31.)
5. Initial start-up vibration is normal and should stop
after a few revolutions. Stop PTO rotation
immediately if vibration continues.
6. Once cutter is running smoothly, increase throttle to
full PTO speed. If cutter vibrates excessively for 3
seconds at full speed, immediately disengage PTO,
shut tractor down, and remove switch key.
7. Block center deck up before working under cutter.
8. Check blades for a locked-up situation. Unlock
blades if locked-up.
9. Check for other probable causes such as broken or
bent blades, loose blades, loose gearbox mounting
bolts, and bent driveline.
10. Taking proper precautions, make necessary repairs
and adjustments.
11. Repeat steps 1 thru 10 above to make certain
vibration problems are corrected before putting cutter
back into service.
IMPORTANT: Read all “Safety Information”
starting on page 27 before operating the cutter.
IMPORTANT: Stop PTO immediately if vibration
continues after a few revolutions during start-up and
anytime vibration occurs thereafter.
IMPORTANT: Do not exceed cutter’s rated PTO
speed (540 or 1000 rpm). Excessive PTO speed will
cause damage to the power train components.