Yetter Avenger 30 Coulter - Manual (Page 26)

26
TROUBLESHOOTING
Problem
Closing wheels are plugging
Fumigant too shallow
Fumigant will not flow
Blade not turning properly
Residue/Plastic plugging-
wedging between blade and
knife
Blade not penetrating
Cause
Mounting bracket height
adjusted too low
Closing wheels are mounted
side by side
Spring tension setting is too
heavy
Blade not penetrating deep
enough
Injection knife worn
Hole worn in injection tube
Kinked/Crushed supply hose
Injection tube is plugged
Bearing seized in the hub
assembly
Loose soil
Excessive blade knife
clearance
Knife not correctly aligned
behind blade
Toolbar height too high
Insufficient coulter spring
tension
Too much spring tension on
close wheels
Lack of toolbar weight
Solution
Adjust the mounting bracket
so that the wheel arm is
parallel or running slightly
uphill to soil surface.
Mount the closing wheels
offset. One forward, one back.
Adjust spring tension to a
lighter-forward-position.
Increase/Tighten coil spring
tension.
Replace knife.
Repair tube or replace
knife/tube assembly.
Replace supply hose.
Check for obstruction in
injection tube.
Repair/replace worn cups,
cones and seals.
Increase blade cutting action
by adding a shim to the
Avenger mount bracket at the
toolbar on the side opposite
the blade.
Knife adjustment should be as
close as possible at tip but
provide maximum opening at
upper end.
Use shims more/less to align
knife directly behind the blade.
Adjust height of toolbar to 22”-
25” above soil surface.
Increase tension on coil spring
– turn lock nut clockwise.
Adjust spring tension on
closing wheel to lightest
setting.
Add additional ballast to the
toolbar frame.
Example: 200# per coulter.
Refer to tractor O/M for hitch
lift capacity.