Chain type

Angle (°)

 

A

B

Rapid Micro (RM)

30

75

Rapid Super (RS)

30

60

Picco Micro (PM)

30

75

Rapid Micro X (RMX, rip-

10

75

ping chain)

 

 

Rapid Micro X (RMX, rip-

10

75

ping chain)

 

 

Cutter shapes Micro = Semi-chisel Super = Full chisel

The specified angles A and B are obtained automatically if the recommended files or sharpening tools and correct settings are used.

The angles must be the same on all cutters. If the 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:

NUse a file holder

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

For checking angles

001BA203 KN

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, cutter length and groove depth. It also cleans the guide bar groove and oil inlet holes.

File correctly

NSelect sharpening tools according to chain pitch.

NClamp the bar in a vise if necessary.

NLock the chain – push hand guard forward.

NTo rotate the chain – pull hand guard against handle to disengage the chain brake On models with Quickstop Plus, also press down the throttle trigger lockout lever.

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

English

90° KN 689BA018

689BA043 KN

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

NAlways file from the inside to the outside of the cutter.

NThe file only sharpens on the forward stroke – lift the file off the cutter on the backstroke.

NAvoid touching the tie straps and drive links with the file.

NRotate the file at regular intervals while filing to avoid one-sided wear.

NUse a piece of hardwood to remove burrs from the cutting edge.

NCheck angles with the filing gauge. All cutters must be the same length.

MS 192 C

43