CRANKCASE AND CRANKSHAFT This section deals with the following: • Crankcase and crankshaft (describes how the whole assembly is dismantled and reassembled) • Seals (describes only replacement of seals) • Guide bar bolts (describes only replacement of the guide bar bolts)
Crankcase and crankshaft Dismantling 1. Before the crankcase can be split, the following components must be removed: A. Chain and guide bar. See instruction book. B. Recoil starter. See page 16. C. Electrical system. See pages 18-20. D. Centrifugal clutch. See page 22. E. Lubrication system. See page 22. F. Carburettor. See page 28. G. Silencer. See page 14. H. Piston and cylinder. See page 38. I. Tank unit. See page 35.
Fig. 1
NOTE! Ensure that no dirt or foreign particles enter the bearings.
2. Remove the carburettor space bottom plate by taking out the four bolts.
Fig. 2
3. Remove the washer and spacer on the clutch side. See fig. 1. 4. Remove the six bolts on the flywheel side. See fig. 2. 5. Fit tool 502 51 61-01 as shown in fig. 3 and remove the clutch side crankcase half. 6. Remove the flywheel side crankcase half in the same way as for point 5 above. 7. If required remove the seals. Use tools 502 50 55-01 and 504 91 40-01. See fig. 4. Fig. 3
Fig. 4 42 – English
42-46 Eng Vevh.,Vevax.
42
98-10-05, 11.30
