Oliver 4620, Owner'S Manual

Page: 16 / 32

Quick release / blade tensioning
Lifting the quick release handle to release blade tension.
Remove blade and replace with new one. Turn down
the handle to tighten blade.
Turn the handle clockwise to minor tighten blade
tension and counterclockwise to release blade tension.
A blade under tension may also pull drive wheel out of
alignment. Adjust alignment of drive wheel with
tracking knob.
Adjusting upper blade support
The blade support bearing (A) should be adjusted so it almost touches the back of the saw blade when
the blade is tracking properly. To adjust, loosen
indexable locking lever (B) and slide bracket in or out
until the adjustment is correct. Tighten lever. The
blade guide bearing (C) should be adjusted so they
almost touch the slide of the blade. The front edge of
the guide bearings must be positioned just behind the
“gullets” of the saw teeth. To adjust, loosen indexable
locking lever (D) and slide bearing assembly in or out
until the adjustment is correct. Tighten lever. Replace
blade guard.