Great Plains AS20 Operator Manual - Manual (Page 17)

-
15 4/14/05 Great Plains Mfg., Inc.
Section 3 Basic Operation
AS15 and AS20 Planting System 148-153M
It may be necessary to lock the pivot locks down when
planting on steep side slopes or when backing the All
Seeds Hitch to hook up to a drill or planter. Since the au-
tomatic control links on the pivot locks are spring loaded,
they do not have to be disconnected when manually
locking the pivot locks up or down.
Tongue Transport Channels
A transport lock channel is available to lock up the front
tongue cylinder. After the unit is raised for transporting,
the transport lock channel should ALWAYS be placed on
the cylinder rod to prevent damage should hydraulic fail-
ure occur.
It fits over the cylinder rod and is held in place with a
keeper pin as shown in Figure 3-4. Before lowering the
All Seeds Hitch for planting, place the transport lock
channel in its storage position on the coulter bar support
gusset as shown in Figure 3-5.
Pre Drilling/Planting Instructions
Before operating the All Seeds Hitch check the following
items and operating rules.
Transport Locks
Rotate the transport lock handle to the field position as
shown in Figure 3-1. The hitch will have to be raised
completely to remove the pressure on the transport lock
blocks and allow them to slide free before the unit can be
lowered.
Pivot Lock Tubes
Make sure the pivot lock tubes are not manually locked
down as shown in Figure 3-3 to allow them to automati-
cally swing free from the pivot stop plates during field
operation. This allows for proper tracking between
coulters and openers as shown in Figure 3-6.
Tongue Transport Channel
Remove the tongue transport channel from the transport
position Figure 3-4 and place it in the storage position
Figure 3-5.
Basic Operating Rules
1. Never back up with openers and coulters in the
ground.
2. Do not turn a shorter radius than the pivot stops will
allow.
Pivot Lock Tube Manually Locked Down
Figure 3-3
12333
Tongue Transport Channel in Transport Position
Figure 3-4
12483
Tongue Transport Channel in Storage Position
Figure 3-5
11871