Section 5: Operating Procedures
5/24/19
DB2660 & DBM2660 Ditch Bank Rotary Cutter 316-317M
36
Check Cutter Blades
Figure 5-1
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.
Refer to Figure 5-1:
12. Make the following checks with power take-off
disengaged, blade rotation stopped, deck rotated up,
3-point arms lowered until deck is resting on the
ground, and transport safety chain hooked to the
deck.
•
Check for and remove foreign objects wrapped
around cutter blades and blade spindle.
•
Check blades to be sure they are not locked
(overlapped) together.
•
Ensure that both blade bolts and center blade
carrier hub nuts are tight. Refer to
on page 54 for torque values.
•
Check cutter blades for nicks, bends, breaks,
cracks, and sharpness. Replace or sharpen blades
as required. Refer to
Blade Operation Inspection
DANGER
!
To avoid serious injury or death:
•
Cutter blades can be rotating with deck off the ground and
at all kinds of angles to the ground. Keep all personnel away
while cutter blades are rotating. Rotating cutter blades can
cause serious injury or death.
•
Tractor power take-off shaft shield, driveline shields, and
•
Do not use a power take-off adapter. The adapter will
37258
Cutter Blades
Blade Carrier
p
Located Beneath
Blade Carrier
Blade Bolt
WARNING
!
To avoid serious injury or death:
•
Always follow “Tractor Shutdown Procedure” provided in
this manual before dismounting the tractor.
•
Stop power take-off immediately if vibration continues after
•
Some tractors are equipped with two power take-off speeds.
Be certain your tractor’s power take-off is set at the
implement’s rated power take-off speed or equipment
breakage may result. DB Series are rated for 540 rpm and
DBM Series are rated for 1000 rpm.
1.
Make sure cutter blades are not locked against each
other. Refer to step 11 on page 35.
2.
Set tractor control lever for deck pivot cylinder in self-
cancel detent and fully retract deck pivot cylinder.
3.
Lower 3-point arms until deck pivot joint is resting on
the ground.
4.
Place tractor gear selector in park or set park brake,
turn off engine, and remove switch key to prevent
unauthorized starting.
5.
Unhook transport safety chain and store on storage
hook. See
“Unhook Transport Safety Chain”
6.
Return to the tractor and raise/lower 3-point arms
until deck is about 6" off the ground.
7.
Extend/retract deck pivot cylinder until deck is level
with the ground.
8.
Set tractor control lever for the deck pivot cylinder in
float detent if gauge wheel is included and
self-cancel detent if gauge wheel is not included.
9.
Start tractor and set throttle speed just above idle.
Use tractor’s power take-off soft start option if
available. Slowly engage power take-off to get blades
rotating. (Also see
10. Initial start-up vibration is normal and should stop
after a few revolutions. Stop power take-off rotation
immediately if vibration continues.
11. Once cutter is running smoothly, increase throttle to
full power take-off speed. If cutter vibrates
excessively for 3 seconds at full speed then
immediately disengage power take-off, shut tractor
down, and remove switch key.
IMPORTANT:
Read all
“Safety Information”
starting on page 1 before operating the cutter.
IMPORTANT:
Before engaging tractor power take-
off, make sure reservoir is full of hydraulic oil, shut-
off valve is fully open, and speed increaser/pump
hydraulic plumbing is configured correctly. See
