Manual
SECTION 3 - OPERATION & MAINTENANCE
3-4
NO. PROBLEM CAUSE CORRECTION PAGE
1 Trash buildup ahead
or behind chisel plow
shank.
Working in unusually
heavy trash.
Check that cross tube (8HD5150) is rotat-
ed to provide maximum clearance between
shank and harrow.
4-23
Install Coulter Option (8K6890) 4-13
Harrow section can be lifted and “locked”
up if conditions require.
4-22
2 Leaving center valley Rear gangs cutting
too deep.
Level disk using threaded adjustment bolts
above each cylinder/wheel assembly.
3-2
Diamond Disk - Install additional 2
8K5025N blades at rear center.
4-12
3 Gangs plugging. Extremely wet eld
conditions.
Allow to dry if possible.
Scrapers adjusted
improperly.
Adjust scrapers so scraping edge is ush
against each blade, but not tight enough to
prevent gang from turning freely.
2-3 or
2-5,
3-1
Under some soil and residue conditions,
scrapers will perform better if set 1 to
1-1/4” away from blades.
2-3 or
2-5,
3-1
Adjust machine to run rear gangs deeper. 3-2
4 Poor penetration,
center section.
Disk not running level
from front to rear.
Level disk using threaded adjustment bolts
above each cylinder/wheel assembly.
2-2 or
2-4,
3-2
Wheels are holding
disk out of the ground.
Retract hydraulic cylinders for desired
depth.
3-2
5 Hydraulic cylinders
not synchronized.
Hydraulics have drift-
ed or air has entered
the system.
Hold hydraulic control lever with the hy-
draulic cylinders fully extended 15 seconds
to synchronize rephasing cylinders.
3-1,
3-2
6 Leaving ridge 2-4 feet
from disk center.
Side draft. Level disk using threaded adjustment bolts
above each cylinder/wheel assembly.
3-2
Recheck gang spacing. 2-6 -
2-12
7 Plugging at disk front
center.
Wet conditions or ex-
tremely high residue
conditions.
Diamond Disk - Replace front center
blades with 8K5025N notched blade.
4-12
Install second stalk ngers 180 degrees
from standard on front center gangs. Order
2: 8X0257 and 2: 8K5214.
4-12
8 Wings do not pen-
etrate.
Dry/hard conditions. Adjust wing cylinders to lift wheels off
ground.
3-2
Add 8K9250 Wing Wt. Package or 8K9252
Double Weight Package.
4-14
9 Gang bolts do not
stay tight.
Gangs have run loose
for extended time.
Disassemble gang, clean and replace worn
components.
4-12
TROUBLESHOOTING