English / USA

Furthermore, the angles must be the same on all cutters. If angles are uneven: Chain will run roughly, not in a straight line, wear quickly and finally break.

689BA025 KN

As these requirements can be met only after sufficient and constant practice:

:Use a file holder

A file holder (special accessory) must be used for manual resharpening (see table "Sharpening Tools"). The correct filing angles are marked on the file holder.

For checking angles

85° 70°

90°

80°

60°

30°

35°

 

KN

 

10°

0°

689BA022

Use a STlHL filing gauge (special accessory – see table "Sharpening Tools"). This is a universal tool for checking the filing and side plate angles, depth gauge setting and cutter length. It also cleans the guide bar groove and oil inlet holes.

File correctly

:Select sharpening tools according to chain pitch.

:Clamp the bar in a vise if necessary.

:Lock the chain – push hand guard forward.

:To rotate the chain, pull the hand guard against the front handle to disengage the chain brake. On models with QuickStop Super, also press down the throttle trigger interlock lever.

:Sharpen chain frequently, take away as little metal as possible – two or three strokes of the file are usually enough.

90° KN 689BA018

689BA043 KN

:Hold the file horizontally (at right angle to side of guide bar) and file according to the angles marked on the file holder. Rest the file holder on the top plate and depth gauge.

54

MS 270, MS 270 C, MS 280, MS 280 C