Disc spreaders and scrapers, 25 series row-unit side wheels – Great Plains YP1625A Operator Manual User Manual

Page 105

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Great Plains Manufacturing, Inc.

Table of Contents

Index

Maintenance and Lubrication

101

2013-08-13

Table of Contents

Index

401-625M

Disc Spreaders and Scrapers

Refer to Figure 129
1.

Remove side gauge wheels from arms to access
row-unit discs and scrapers.

2.

With the unit raised, check blade spreader

for

wear. Replace spreader if it is

1

2

inch (13 mm) wide

or narrower. To replace, remove disc blade

, drive

out roll pins

, and install new spreader.

3.

When reinstalling disc blades, put two shim
washers

between bearing and shank on each

blade. Tighten bolts.

Note: You may need fewer inside shim washers on worn

discs.

4.

Check that outside disc scrapers

are formed to

disc blades to help remove any mud. Bend and twist
scrapers to fit blades as necessary. After every
200 acres (80 hectares) of operation, check outside
scrapers for proper adjustment and wear. Replace
outside scrapers as necessary.

25 Series Row-Unit Side Wheels

Figure 130
1.

Lift opener side wheel off the ground. Move tire in
and out to check for end play. Check for roughness in
bearing by rotating wheel. If bearings are rough,
inspect and replace if necessary.

2.

The side wheels are preset at the factory. However,
because of normal wear it may become necessary to
make adjustments so the wheel remains close to the
disc. Loosen clamp bolt

and slide arm

inward

to take up gap between side wheel and disc blade. If
more adjustment is needed, continue at step 3.

3.

Remove bolt

and wheel

. Remove shims

from the inside of wheel and place them on the
outside of wheel

. Always place removed shims

from the inside to the outside. When installed, wheel
should turn freely and not hit the arm at the curve.
Do not add any more shims than necessary.

4.

Disassemble side gauge wheel arm

from unit.

Remove bushing

from sleeve

and check for

wear. If necessary, replace bushing.

5.

When reinstalling side gauge wheels, align tab on
hex adjustment

with notch in bushing. Replace

bolt and tighten.

6.

Adjust side gauge wheels. See “Side Gauge Wheel
Adjustments
” on page 66.

Note: It is normal for the blade spreader to have some

looseness in the holder and between the blades.
Some looseness is required for proper operation.

Figure 129

Spreaders and Scraper

s

22839

1

2

3

4

5

2

4

1

2

3

4

5

Sharp Object Hazard:
Be careful when working in this area.
Opener disc edges are sharp.

Figure 130

Adjusting Gauge Wheel Spacing

21894

14

11

17

16

10

18

13

15

12

{

10

11

12

13

14

15

11

16

17

18

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