Great Plains 30-Foot 3-Section Vintage Drill User Manual

Page 11

4/8/04

1-9

113-368M

TROUBLE SHOOTING

PROBLEM

SOLUTION

Hydraulic marker functioning improperly

Check all hose fittings and connections for air and oil leaks.

The chain on the folding marker should be slack when the marker
is both fully extended and fully raised.

Check tractor hydraulic oil level.

Check all bolts and fasteners.

If needle valve is plugged; open valve, cycle markers, and reset
the needle valve.

Double selector valve positioned for fold cylinders. Shift valve to
marker sequence position.

Blade does not mark

The marker folding linkage and chain must have enough slack to
allow the marker disk to drop down into depressions in the field.
Maximum down float should be limited by the slots at the rod end
of the marker cylinder, and not by the chain Read the adjust-
ments section of this manual when adding slack to the chain.

The blade may be reversed to pull dirt in or throw dirt out depend-
ing on soil conditions. See disk adjustments in this manual.

An optional smooth blade is available through your Great Plains
dealer. The notched blade comes with your marker as standard
equipment.