SECTION 2 - OPERATION
page 2-8
Ratchet Jack Adjustment
FIELD OPERATION
DEPTH CONTROL VALVE AND OPERATING DEPTH ADJUSTMENTS
Before adjusting the drill for operating depth make sure that the machine has been leveled and that the tires have the correct
operating pressure.
IMPORTANT: Never adjust the ratchet jacks when weight is on the gauge wheels. Failure to do so may
damage to the machine
1. Once the drill has been leveled (refer to the
Adjustments Section) the depth adjustment is
performed by adjusting the ratchet jacks on the front
gauge wheels. The center gauge wheel is linked to the
depth stop valve on the depth cylinder via a cable,
pulley linkage. As the machine is lowered the depth
cylinder pin moves toward the depth stop tab. Once
contact is made, the depth stop tab activates another
tab that closes the depth stop valve, stopping the frame
at the set operating height.
2. To set the operating depth, activate the depth control
hydraulic circuit to raise the implement to maximum
height.
3. Adjust the ratchet jacks to reference the actual seed
depth. (If a seeding depth of three inches is desired,
set the scale to 3). Be sure all ratchet jacks line up
with the same reference number on the scale. This will
be a starting point but will be affected by soil
conditions. In firm conditions the gauge reading will
show the seeding depth with the greatest accuracy.
NOTE: The indicator on the gauge wheel will shift
when weight is on the gauge wheels. This
shifting is normal and has been taken into
account during the initial leveling procedure.