Great Plains 3S-3000HD Assembly Instructions - Manual (Page 11)

Great Plains Mfg., Inc.
Installation Instructions 11
03/24/2009 118-253M
Update Center Shaft
Release Shaft
Refer to Figure 16
57. At the left end of:
195-188D POWER SHAFT 7/8 HEX CENTER
remove and save the acremeter at the left end of
the center shaft . Remove this instrument before
driving out any pins.
58. Near the left end, remove one each:
805-180C PIN ROLL 1/4 X 1 1/2 LG PLT
808-259C SPKT 40B14 X 7/8 HEX BORE
Save the sprocket. The pin is not re-used.
!
CAUTION
Shaft moves, under spring tension, about
1 ⁄
2
in (13mm) to
the left as the next pin is removed.
59. At the left side of the right support weldment,
remove one:
805-180C PIN ROLL 1/4 X 1 1/2 LG PLT
This pin is not re-used.
Add Bearing and Sprocket
Refer to Figure 17
60. Select one new:
822-119C BRG 7/8HEXX2.05OD SPH
and six (6) new:
822-032C FLANGETTE 52 MST
Insert each bearing in between flangettes .
61. Select two (2) sets new:
802-282C RHSNB 5/16-18X1 GR5
804-009C WASHER LOCK SPRING 5/16 PLT
803-008C NUT HEX 5/16-18 PLT
Refer to Figure 18
62. Select one:
808-256C SPKT 40C23 X 7/8 HEX BORE
63. Slide the shaft right until the left end is to the
right of the middle support weldment . Add the
new sprocket to the shaft, with the raised hub
side of the sprocket oriented to the left. Support the
shaft so that it cannot fall out of the drill.
64. Mount the bearing assembly on the left side of the
middle support weldment . Slide the shaft back
into the new bearing, until the jaw spring is about to
compress.
65. Select one new:
805-180C PIN ROLL 1/4 X 1 1/2 LG PLT
Drive the pin into the shaft at the (previously
unused) hole to the right of the new sprocket .
Two people are recommended for the next step.
Figure 16
Release Center Shaft
21634
U
D
F
B
L
R
3
78
91
91
94
78
3
78
91
94
78
91
Figure 17
Install Center Bearing
28110
4
58
35
56
56
45
38
U
D
F
B
L
R
58
56
58 56
35
45
38
52
Figure 18
Re-install Center Shaft
21635
U
D
F
B
L
R
52
78
5
6
49
4
78
4
52
4
49
49 78
52