PRE-RELEASE
Gear-changing mechanism
| Gear-changing mechanism |
| To dismantle |
When dismantling the gear-changing mechanism, the selector shafts must be in their neutral positions.
| 1. |
Clamp the gear-changing mechanism in a vice with soft jaws.
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| 2. |
Remove the gear position mechanism.
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| 3. |
Remove the four shift rails.
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| 4. |
If the forks and drivers need replacing, tap out the expanding pins and remove the forks and drivers. Note positions for refitting. Expanding pins should always be replaced for assembly.
Check all components for wear. Change any parts which are worn or defective. |
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| To assemble |
| 1. |
Fit the 4 shift rails in the order 1-2, 3-4, 5 and reverse. Position the rails so that the driver grooves are opposite each other.
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| 2. |
Fit the gear position mechanism with the springs ends on each side of the guide lug and the dual interlock in the driver groove.
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| Selector lever |
To dismantle
| 1. |
Remove the gear selector mechanism lock ring, preload washer and torsion spring.
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| 2. |
Tap out the retention pin and remove the dual interlock.
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| 3. |
Remove the gear position guide.
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To assemble
| 1. |
Fit the gear position guide on the shaft. Press the shaft until the middle groove is located centrally on the opening in the gear position guide.
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| 2. |
Fit the dual interlock on the shaft and tap in a new retention pin.
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| 3. |
Fit the tension spring taut with the spring ends on each side of the pin.
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| 4. |
Fit the lock ring. Do not put on the preload washer until the gear-changing mechanism has been fitted in the gearbox.
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