Yetter 2996 Fertilizer Coulter - Manual (Page 18)

18
TROUBLESHOOTING
Problem
Setting coulter
Trash plugging
Blade not penetrating
Spring not deflecting
Fertilizer too deep
Fertilizer too shallow
Fertilizer will not flow
Blade not rotating properly
Cause
Planter not set correctly
Excessive knife-blade
clearance
Knife not correctly aligned
behind blade
Insufficient
coulter spring
pressure
Coulter incorrectly installed
Excessive spring pressure
Spring not deflecting
Coulter incorrectly installed
Lack of depth control
Planter frame too low
Blade not penetrating
Coulter incorrectly installed
Incorrect depth control
Plugged fertilizer tubes
Loose soil
Solution
Ensure that in operation the
planter frame is at correct
height (20”-22”) and level the
toolbar. See opposite page.
Check and adjust knife-blade
clearance. See page 7.
Use shims to align knife
behind blade
Tighten coulter spring locknut
down 1” further
Adjust height of coulter by
sliding shank down
Back off coulter spring locknut
to 1/8” of thread exposed
Back off coulter spring locknut
to 1/8” of thread exposed
Adjust height of coulter by
sliding shank up
Install gauge wheel kit, part
no. 2975-120
Raise planter frame to correct
height
Tighten coulter spring locknut
down 1” further
Adjust height of coulter by
sliding shank down
Install gauge wheel kit, part
no. 2975-120
Check for plugged fertilizer
tube openings on knife
Check for plugged fertilizer
delivery tubes on planter
Coulter works best in firmer
soil conditions