Great Plains PT8030 V1015 Operator Manual - Manual (Page 40)

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Section 5 Maintenance and Lubrication
PT6030 and PT8030 Pull-Type Planter 401-032M-B 4/12/05
Great Plains Mfg., Inc.
Shaft Alignment
Improper shaft alignment can cause pins to shear. To
function properly, the transmission shafts must be aligned
and level. If the planter is consistently shearing pins, follow
these steps to check and adjust the shafts.
1. Check that the transmission-input shaft (1) and trans-
mission shaft (2) are aligned. Remove cotter pin from
coupler sleeve. Pull the coupler sleeve back and ob-
serve the shafts.
16832
2 1
Figure 5-3
Transmission-Input Shaft Alignment
2. If the shafts are not aligned, adjust the contact-drive
tower. Loosen the mounting bolts (1) on both sides of
the tower. Adjust tower position until shafts are
aligned.
16849
1
1
Figure 5-4
Contact Drive Housing Adjustment
3. Retighten tower mounting bolts. Slide coupler sleeve
over transmission-input shaft and reinsert cotter pin.
4. Level the transmission-output shaft. Place a straight
edge across the 7-by-7-inch frame tube. Take a mea-
surement from the straight edge (1) down to the top of
the shaft (2). Repeat measurement at each row unit.
Measurements must be equal across the planter.
To level the shaft, loosen the shaft hanger bearings (3)
at each row unit. Adjust shaft until measurements are
equal across the planter.
16833
1
2
3
Figure 5-5
Leveling Transmission-Output Shaft
Ratchet Drive (8 Row Only)
Refer to Figure 5-6.
The ratchet assembly must operate freely and the springs
(1) must bring the dogs (2) back against the ratchet hub
(3).
Repack with grease annually.
15177
Figure 5-6
Ratchet Drive