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Section 3: Adjustments
OS1548 and OS1572 Overseeder (S/N ) 308-303M
11/28/18
23
High Range Set-up With Rear Roller Drive
Instructions below change seeder from low to high range.
Refer to Figure 3-5 & Figure 3-6:
1.
Pull down on spring idler sprocket (#1) and remove
drive chain (#2) from speed change sprocket (#3).
2. Pull down on spring idler sprocket (#4) and remove
driven chain (#5) from speed change sprocket (#3).
3. Being careful not to lose the washer behind the
19/35 tooth sprocket (#3), remove 5/8" bolt, lock
washer, and flat washer (#6).
Refer to Figure 3-4 & Figure 3-6:
4. Make certain existing washer is still on the idler shaft.
Install 19/35 tooth sprocket (#3) with 19 tooth
sprocket in front of 35 tooth sprocket. Secure speed
change sprocket with flat washer, lock washer, and
5/8" bolt (#6). Tighten bolt to correct torque.
5. Driven chain (#5) should be 140 pitches long. If it is
short, remove 8 pitches from the drive chain (#2) and
add those 8 pitches to the driven chain.
6. Replace 140 pitch driven chain (#5) first and then the
174 or 194 pitch drive chain (#2).
7.
Make sure spring tensioned idler sprockets (#1 & #4)
are pressing against the drive and driven chains.
Low Range Set-up With Rear Roller Drive
Instructions below change seeder from high to low range.
Refer to Figure 3-4 & Figure 3-6:
1.
Pull down on spring idler sprocket (#1) and remove
drive chain (#2) from speed change sprocket (#3).
2. Pull down on spring idler sprocket (#4) and remove
driven chain (#5) from speed change sprocket (#3).
3. Being careful not to lose the washer behind the
19/35 tooth sprocket (#3), remove 5/8" bolt, lock
washer, and flat washer (#6).
Refer to Figure 3-5 & Figure 3-6:
4. Make certain existing washer is still on the idler shaft.
Install 19/35 tooth sprocket (#3) with 35 tooth
sprocket in front of 19 tooth sprocket. Secure speed
change sprocket with flat washer, lock washer, and
5/8" bolt (#6). Tighten bolt to correct torque.
5. Driven chain (#5) should be 132 pitches long. If it is
longer, remove 8 pitches from it and add those
8 pitches to the driven chain (#2).
6. Replace 132 pitch driven chain (#5) first and then the
182 or 202 pitch drive chain (#2).
7.
Make sure spring tensioned idler sprockets (#1 & #4)
are pressing against the drive and driven chains.
NOTE:
Refer to
page 32 for definition of long arm and short arm.
NOTE:
Refer to
page 32 for definition of long arm and short arm.
High Range Set-up with Rear Roller Drive
Figure 3-4
Low Range Set-up with Rear Roller Drive
Figure 3-5
Sprocket Alignment with Rear Roller Drive
Figure 3-6
3
11923
5
1
2
4
6
2
3
4
5
10475
6
1
12876