Great Plains 25P Eliminator Bushing Field - Manual (Page 3)

Replace with New Bushing and Seals Great Plains Manufacturing, Inc. 3
11/15/2010 498-255M
Replace with New Bushing and Seals
Refer to Figure 3 and Figure 4
Select New Outer Bushing
7. Select new outer bushing either:
Narrow:
198-360D OUTER BUSHING INNER CUP SEAL
or
Wide:
404-214D 25P O-RING BUSHING
Insert U-type Seals
Note: Do NOT damage the new seals by inserting them
in the wrong direction. If these instructions are fol-
lowed the seals will not be damaged. When the
inner bushing passes through the inside of the
outer bushing it must not cut against the sealing
edge.
Note: The notch on the eccentric bushing must
face down and to the outside of opener arm.
8. Select one U cup seal .
Make sure U-shape part of seal (the open end)
faces OUT and not into the groove. Insert it in one
end of the new outer bushing
. Make sure the
seal is placed securely in groove.
MAKE SURE TO ONLY INSTALL ONE SEAL AT
THIS TIME.
9. Before sliding the inner eccentric bushing into
the outer bushing put a small amount of grease
over the seal to lubricate. This makes it easier to
push the bushing through so it doesn’t damage the
seals.
10. Take the eccentric bushing flat end (not notched
end ) and slide it in the opposite end (end without
the seal). Push all the way through so it extends a
little past the end with the seal to allow room to get
second seal in.
11. Select second U cup seal :
Insert making sure U-shape part of seal (the open
end) faces OUT and not into the bushing groove.
Make sure it is securely in groove. Apply a small
amount of grease over the seal
to lubricate.
12. Push inner bushing through this seal so it is cen-
tered inside outer bushing .
Figure 3
Replace with New Bushing
31700
28
32
36
11
13
38
25
13
U
D
F
B
L
R
14
11
14
24 25
13
11
Figure 4
Inner and Outer Bushings
Disassembled (top), Joined (bottom)
31699
U
D
F
B
L
R
11
25
13
24
13
25
11
13
25
24
13
13
25
11