Husqvarna AR19B Owners Manual - Page 36

MAINTENANCE Tines and tine shaft Replacing the tines 1. Turn off the engine and remove the weights. 2. Collapse the handle (applies to model AR19). 3. Note the direction of the tine screw. 4. Remove and replace the tines by undoing the appropriate stop screw (1). Remove the setscrew (2) and the tine. Fit a new tine in the same direction and affix it using the setscrew. Once the tines have been replaced, tighten the stop screws. 1 2 IMPORTANT INFORMATION Replace worn nuts so that the screws will keep the tines in place. Replacing the tine shaft bearings 1. Turn off the engine and remove the weights. 2. Remove the drive guard cover. 3. Collapse the handle for better access to the tines (applies to model AR19). 4. Lift the machine about 10 cm. Chock the rear wheels and insert blocks. 5. Turn the drive chain manually for access to the master link. 6. Slack the chain by turning the idler adjustment screw counterclockwise. 7. Remove the master link and free the chain from the rotor sprocket. 8. Remove the nuts (1) and screws (2 per bearing) that hold the outer bearings of the tine rotor shaft in the side panels of the machine (see illustration). 9. Remove the tine rotor shaft. 10. Remove the tine shaft bearings by undoing the setscrew on each locking collar. Insert a punch into the hole beside the setscrew and tap it with a hammer so that the locking collar turns opposite the normal rotation direction (see illustration, principle). 11. Reassemble the machine by following the instructions above in the reverse order. 12. For instructions on chain replacement and chain tension adjustment, see chapter "Maintenance/ Replacing the chain" and "Maintenance/ Adjusting chain tension". 34 - English 8011-172 8011-173 8011-174