There are three types of drum scrapers.
Machines equipped with a smooth drum have either a
rubber blade in front and are of the drum or a single
steel scraper at the front of the drum.
Machines equipped with a padded drum use a single
scraper yoke mounted in front of the drum.
Adjust the scraper assembly by loosening the
bolts. On machines with a smooth drum and steel
scraper, adjust the scraper so that the steel
scraper is 13 mm (.5 in) from the drum surface.
On machines with a smooth drum and a flexible
scraper (optional), adjust the scraper so that the
rubber blade is 7 mm (.25 in) from the surface of
Machines with a padded drum move the scraper
yoke 19 mm (.75 in) from the surface of the drum.