AGCO Glencoe DR8700, Operator'S Manual

Page: 35 / 46

4-1 TRACTOR PREPARATION
The Disc Ripper is used with tractors equipped
with drawbar hitches. Before attaching the Disc
Ripper, prepare the tractor as follows:
4-1.1 Inflate the rear tractor tires equally and
add ballast according to the tractor operator’s
manual.
4-1.2 Lock the tractor drawbar in the center
position.
IMPORTANT
FOR TRACK TYPE TRACTORS, IT MAY BE DE-
SIRABLE TO ALLOW THE HITCH TO SWING
WHEN IN THE FIELD. CHECK YOUR TRACTOR
MANUAL OR ASK YOUR TRACTOR DEALER.
4-2 DISC RIPPER PREPARATION
4-2.1 Prior to operating the Disc Ripper, in-
spect it thoroughly.
4-2.2 Replace worn or missing parts.
4-2.3 When the machine is new, check the
bolt tightness after a few hours of operation.
Tighten any loose nuts or bolts. Check the
gauge wheel lug bolts daily.
4-2.4 Check the gauge wheel tire inflation. In-
flate all tires equally to avoid side draft. Fol-
low the tire manufacturer’s recommended
pressures listed on the sidewall of the tires.
4-2.5 Adjust the disc gangs following the pro-
cedure below:
a. Raise the disc gangs to the full up position,
cylinders retracted.
b. Adjust rear disc gang radius rods for a 1/8"
clearance between the disc gang frame 4x6
tube and the angle adjust brackets on the
main frame. Rear disc gangs should always
be at this adjustment.
c. Front disc gangs may be adjusted to the
same depth as the rear gangs or adjusted to
run deeper than the rear gangs by adjusting
the front disc gang radius rods.
CAUTION
WHEN ADJUSTING DISC SCRAPER,
AVOID BODILY CONTACT WITH DISC
BLADES. SCRAPERS MUST BE
PROPERLY ADJUSTED TO PREVENT
DAMAGE TO THE MACHINE.
4-2.6 Check disc scrapers for proper clear-
ance against the disc blade.
a. Loosen the U-bolts holding the scraper
mount bracket to the scraper tube.
b. Slide the scraper assembly to adjust for a
1/8" to 1/4" clearance to the disc blades.
c. Tighten the U-bolts.
4-2.7 Lubricate the machine as shown in Sec-
tion 4-6 (See Figure 4-2).
4-3 ATTACHING TO THE TRACTOR
4-3.1 Align the tractor drawbar with the ma-
chine. Raise or lower the Disc Ripper hitch,
as needed, using the swivel jack. Attach the
unit with proper size hitch pin.
4-3.2 Clean all hydraulic couplings and attach
to the tractor. When properly attached, the
hydraulic control lever should cause the Disc
Ripper to:
a. Lower to the ground when the control arm is
moved forward or downward, and
b. Raise when the control arm is moved back-
ward or upward.
4-3.3 Fully extend the hydraulic gauge wheel
cylinders, and place the cylinder lockouts in
the transport lock position over the cylinder
rods. Secure the lockouts with the lockout
pins.
4-3.4 Always place the swivel jack on the in-
terior mount before setting the machine in
motion.
4-2