Great Plains Disk Harrow Field Update Disk Gang Bearings - Manual

Great Plains Mfg., Inc. Installation Instructions
11/20/2007 SeriesI 3323DH-4336DH Disk Gang Update 557-329M
1
Disk Harrow Field Update
Disk Gang Bearings
Applies to Models: Update Kit Numbers:
• 3323
557-301V Bearing & Washers 557-317V Washer Only
• 3326
557-302V Bearing & Washers 557-318V Washer Only
• 3329
557-303V Bearing & Washers 557-319V Washer Only
• 4330
557-304V Bearing & Washers 557-320V Washer Only
• 4333
557-305V Bearing & Washers 557-321V Washer Only
• 4336
557-306V Bearing & Washers & C-Shank 557-322V Washer Only & C-Shank
General Information
These instructions explain how to install
the Bearing and Washer Update Kits. If you are
updating a new machine use the Washer Only
Kit. If you have a used machine you will use
the Bearing Kit. If you have model 4336 disk
harrow you will have to install 1 new c-shank
assembly on 2 gangs. This will be explained in
the Assembly Instructions.
Manual Update
Refer the Disk Harrow operator’s
manual for detailed information on safely
operating, maintaining and it is very important
to grease bearings as shown in operator’s
manual. Refer to parts manual for part
identification.
556-100M Operator’s Manual
556-100P Parts Manual
Before You Start
For safety it is best to park machine on
level concrete floor. Leave machine hooked to
tractor or some kind of hydraulic source so you
can raise machine up and down while you are
assembling Kits. Review these instructions and
make sure you understand where and how the
components are installed, and which existing
parts are removed or re-used.
Tools Required
ƒ Basic Hand Tools
ƒ Torque Wrench or 6’ Cheater
ƒ Gang Wrenches (provided with
machine)
Assembly Instructions
Refer to drawings on pages 3-5.
Start by unfolding the wings and
removing transport lock from lift cylinders
and lower the machine to the ground. Loosen
the scraper assemblies from the c-shank plate
bottom (13) by loosening the 1/2 x 2 1/32 x 3
u-bolts and sliding the scraper assemblies
over enough to clear gangs but don’t take
them clear off. Removal of hose hangers on
scrapers may be necessary to slide scrapers
over.
Remove the 3/4 hex nuts and 3/4 lock
washers off the 3/4 x 7 hex bolts (1) from
each gang. Raise machine up for clearance
and roll gang out from under machine. You
can take all the wing gangs loose at once and
fold wings back up. Note: Tighten scrapers
before folding wings so bar will not get bent
while folding.
If this is a new machine and you will
be re-installing these bearings, pull the bottom
bearing casting off the bearings. Verify that