Great Plains YP1625A Operator Manual - Manual (Page 77)

Great Plains Manufacturing, Inc. Table of Contents Index Adjustments 73
2013-08-13 Table of Contents Index 401-625M
5. Lock-Up Row
Machine Damage Hazard:
Do not lock up the rear rows on a twin-row YP1225A or
YP1625A planter. They will strike other machine components
in folding, and be damaged.
Alternate twin-row units (the front units) can be pinned in
the up position to accommodate single-row spacing.
Refer to Figure 98
The lock-up pins
for each front row unit are located in
a storage hole in the row unit mount. To lock up a unit,
the unit must be raised, and the pin moved to the lock-up
hole
in the row unit shank.
Note: If you lose a pin, the replacement part number is
805-033C
1. Raise the planter. Although this adjustment can be
made with the planter lowered, the springs will be in
tension, and will require more effort. The extra force
may also damage tools.
2. Install lift assist cylinder locks. Lower parking stands.
3. Set the down pressure spring cam to zero, per the
instructions on page 61.
4. Raise the row unit high enough that the hole for the
pin is above the lower parallel arm. This can be done
in several ways, including:
a. use a hoist at the rear of the shank
b. use a jack under the shank extension
Crushing Hazard:
Use a jack or hoist. Raising a row unit on a block by lowering
the planter is risky. The potential for hydraulic failure creates
a safety hazard. Full lowering can damage components.
Refer to Figure 99
5.
Remove the pin from the storage hole and insert
and secure it in the lock-up hole .
6. Lower row unit until lock-up pin rests on lower
parallel arm.
Certain Machine Damage:
Do not pin the row unit while it is in the lowered position.
If the pin is inserted below the parallel arm, unit damage
occurs as soon as planting begins.
Figure 98
25AP Row Unit Lock-Up Pin
25269
29600
1
2
3
4
5
1
2
3
Figure 99
25AP Row Unit Locked Up
29756
Crushing and Sharp Object Hazards:
Do not attempt to lift a row unit by hand. The weight of the
unit, plus the force of the springs (even at minimum) is too
great (plus, a free hand is needed for pin insertion). Even with
multiple people lifting, hand-lifting is unsafe - there are
numerous sharp edges, and the row unit snaps down violently
if a grip is lost.
3
4
5
2
3