3
1
5
7
2
4 |
|
|
|
OS7142 |
|
| 6 |
|
|
| |
1. | Hex Shaft | 4. | Friction Disc |
2. | Bearing | 5. | Spring Clip |
| Flange | 6. | Drive Plate |
3. | Speed |
| Assembly |
| Selector | 7. | Drive |
| Arm |
| Sprocket |
Figure 46
TRACK TENSION ADJUSTMENT (921007, 008, 009)
Check the track tension by applying pressure on the track midway between the upper and rear track rollers. Deflection should be approximately 3/8 in. (9.6 mm). See Figure 47.
If deflection is excessive, tighten the track tension.
3/8 in.
(9.6 mm) 
Figure 47 | OS7226 |
If unit pulls to the left or right when a straight path is desired adjust the track tension. If the unit is pulling to the left, tighten the left track adjuster. If the unit is pulling to the right, tighten the right track adjuster.
To adjust (Figure 48):
1.Tighten the adjuster nut to tighten the track tension.
Loosen the adjuster nut to reduce track tension.
2.Check that unit tracks straight with no pulling to either side.
Track
Adjusters
Figure 48
OS7228
HEIGHT ADJUSTER CABLE ADJUSTMENT (921007, 008, 009)
1.Make sure that height adjustment lock finger is fully engaged. See Figure 85.
2.Loosen jam nut on cable adjustment barrel
3.Turn the adjustment barrel to remove all cable slack and bring the overtravel arm until it makes slight contact with the right end of the slot in the height adjuster lock finger.
4.Tighten the jam nuts.
Pin on overtravel arm makes slight contact 2
with end of slot. | |
|
4Before adjusting ensure that height adjuster lock finger is fully engaged.
1.Height Adjuster Lock Finger
2.Overtravel Arm
3.Height Adjuster Cable
4.Jam Nuts
Figure 85 | OS7230 |
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GB - 34