Great Plains 2515 Operator Manual - Manual (Page 27)

25
Section 5 Maintenance and Lubrication
4/20/05 1515, 2015 and 2515 Three-Point Soybean Machine 173-159M
Great Plains Mfg., Inc.
Section 5
Maintenance and Lubrication
Maintenance
Proper servicing and maintenance is the key to long imple-
ment life. With careful and systematic inspection, you can
avoid costly maintenance, downtime and repair.
Always turn off and remove the tractor key before making
any adjustments or performing any maintenance.
!
WARNING!
Crushing hazard: You could be severely injured or killed by the
falling implement. Always have frame sufficiently blocked up
and lock channels installed when working on implement.
!
WARNING!
Escaping fluid under pressure can have sufficient pressure to
penetrate the skin. Check all hydraulic lines and fittings before
applying pressure. Fluid escaping from a very small hole can be
almost invisible. Use paper or cardboard, not body parts, and
wear heavy gloves to check for suspected leaks. If injured, seek
medical assistance from a doctor that is familiar with this type
of injury. Foreign fluids in the tissue must be surgically removed
within a few hours or gangrene will result.
1. After using drill for several hours, check all bolts to be
sure they are tight. Lubricate areas listed under Lubri-
cation, page 27.
2. Adjust idlers to remove excess slack from chains.See
Drive System, this page. Clean and use chain lube on
all roller chains as needed.
3. Inflate tires as specified on Tire Inflation Chart, “Ap-
pendix,” page 34.
4. Check disk scrapers for proper adjustment. Refer to
Disk Scraper, this page.
5. Replace any worn or damaged safety decals. Order
decals from your Great Plains dealer. Refer to Safety
Decals, “Important Safety Information,” page 4.
Marker Maintenance
The marker arm is attached to marker body with a 3/8-
inch, grade 2 bolt. If bolt breaks, replace with grade 2 bolt.
Figure 5-1
Grade 2 Bolt
NOTE: Failure to replace the shear bolt with a grade 2 bolt
can cause marker damage.
If grease-seal cap for marker-disk-hub bearings is dam-
aged or missing, disassemble and clean hub. Repack with
grease and install a new seal or grease cap.
Opener Disks, Scrapers and Gauge Wheels
1.
Remove side gauge wheels from arms to access
opener disks and scrapers.
Refer to Figure 5-2.
2. With the unit raised, check the blade spreader (1) for
wear. Replace spreader if it is 1/2 inches wide or nar-
rower. To replace, remove disk blade. Drive out the roll
pins (2) and install a new spreader.
3. Check the disk blades (3) for wear. To maintain proper
planting depth, replace if worn to a diameter of 14 1/2
inches or less.
4. When reinstalling disk blades, put two shims (4) be-
tween bearing and shank on each blade. Tighten
bolts.
NOTE: You may need fewer washers on worn disks.
5. Check contact point between disk blades. Place a
piece of paper in top gap between disks blades. Bring
paper down until it stops. In lower gap place another
piece of paper. Bring paper up until it stops. Measure
the distance between two pieces of paper. The dis-
tance must be between 1/2 and 1 3/4 inches. Add or
remove shims as needed to get the correct contact
point.
6. Check that outside disk scrapers (5) are formed to
disk blades to help remove any mud. Bend and twist
scrapers to fit blades as necessary. After every 200
acres of drill operation, check outside scrapers for
proper adjustment and wear. Replace outside scrap-
ers as necessary.
Figure 5-2
Opener Scrapers
17621
17766