Great Plains Swath Command Section Control - Manual (Page 13)

2012-08-23 Table of Contents Index 402-382M
Great Plains Manufacturing, Inc. Table of Contents Index 9
Install Air Clutches
Install Center Air Clutches
If the planter frame does not have a center section, for
example Models YP1225 and YP1625, continue at
“Install Wing Air Clutches” on page 12.
26. Connect the hitch hydraulics and harnesses at the
tractor.
27. a. For Model 3PYP and 3PYPA,
completely fold the wings.
b. For all other Models,
partially or completely fold the wings.
This provides access to center section shaft ends.
28. Lower the openers.
29. Shut down the tractor. Disconnect hydraulics and
harnesses at hitch.
Assess The Center Shaft
Refer to Figure 4
(which depicts a 3PYPA center section shaft
)
30. At one end of the center section, measure the
length of exposed meter drive shaft , from tip of
shaft to row unit mount sidewall (not to bearing
face - the bearing may be relocated during this
installation). Record the dimension.
Refer to Figure 5
(which depicts a 3PYP/A center section
)
31. Mark the approximate end-of-shaft locations on
the tool bar (needed for step 42).
32. Locate the 30T shaft input sprocket (not shown):
808-319C SPKT 50C30 X 7/8 HEX BORE
Measure the position of this sprocket with reference
to the row unit shanks on either side. Record these
dimensions, and whether the sprocket is secured in
place by no collars, one LH, one RH or two collars.
33. Along the entire length of the shaft, locate each pin
hole and roll pin (not shown, and there may be
none). Clean the shaft near each hole. Mark
occupied holes (for example “I”) and empty holes
(for example “o”).
34. Twin Row Only (Air-Pro
®
and finger meter only):
Check for deliberate stagger (consistent difference
sprocket tooth orientation at the meter sprocket).
For the front row, note the tooth number at top dead
center. Record that number and the T.D.C. tooth
number for the rear row.
Note: Lock collar (not shown) locations, other than for
shaft input sprocket, do not need to be recorded.
The clutch layout drawings show the final locations
of all collars.
Figure 4
Center Section Meter Shaft
34056
26
14
17
11
14
26
Figure 5
Center Shaft End Points
34067
1
1
1
23