Great Plains DVN8552 Operator Manual - Manual (Page 16)

550-353M 2014-02-12
12 8321-8552DV Table of Contents Index Great Plains Manufacturing, Inc.
Preparation and Setup
This section helps you prepare your tractor and 8321-
8552DV Discovator for use, and covers tasks that need to
be done seasonally, or when the tractor/Discovator config-
uration changes.
Before using the Discovator in the field, you must hitch it
to a suitable tractor, inspect systems and level the Disco-
vator. Before using the Discovator for the first time, and
periodically thereafter, certain adjustments and calibra-
tions are required.
Prior to Going to the Field Checklist
Complete this checklist before routine setup:
❑ Read and understand “Important Safety Informa-
tion” on page 1.
❑ Check that all working parts are moving freely, bolts
are tight, and cotter pins are spread.
❑ Make sure your tractor horsepower matches the
implement you are pulling. This is important so the
implement can do the best possible job.
❑ Clean all hydraulic couplings and connect to tractor
as shown on page 13 and 14.
❑ If machine is folded, remove the transport pins from
wing stops. (DO NOT remove pins if the wing is lean-
ing against the pins or putting pressure on the pins.
Use the hydraulics to pull the wings in completely
before unpinning them.) Once the pins are removed,
slowly untold the unit. Make sure no one is under the
wings during the unfolding process.
❑ Check again for hydraulic leaks and watch that
hoses do not get pinched in hinges, wing stops, etc.
❑ After the machine is completely unfolded, raise and
lower the Discovator several times to purge air from
the hydraulic system. Again check for hydraulic leaks
and tighten or replace if necessary.
❑ Check safety chain hookup. Make sure all warning
lights are hooked up and functioning correctly.
❑ Check that all grease fittings are in place and lubri-
cated. See “Lubrication” on page 20. The hubs will
come pre-greased and will not need greased at this
time.
❑ Check that all safety decals and reflectors are cor-
rectly located and legible. Replace if damaged. See
“Safety Decals” on page 5.
❑ Inflate tires to pressure recommended and tighten
wheel bolts as specified. See “Tire Inflation and
Warranty” on page 26.
❑ Put transport locks in place and refold the machine
slowly. Put wing stop pins in place. Always use the
transport pins when moving from field to field. You
are now ready to go to the field.