Makita EA3203S-40 [26/41] Chain type 092 91vg 492 91px 290 90sg

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Chain type

092 (91VG),

492 (91PX),

290 (90SG)

Files and how to work with them

Use a special saw chain round le for sharpening. Standard

round les are unsuitable. See “Extract from the spare parts

list”.

Type 092 (91VG), 492 (91PX): Saw chain round le, dia.

4.0 mm.

Type 290 (90SG): Saw chain round le, dia. 4.5 mm.

The le should cut only when pushed forwards (arrow). Lift

the le when leading it backwards.

First sharpen the shortest cutter. The length of this cutter is

then the standard for all other cutters of the chain.

New saw teeth must be led to the exact same shape as the

used teeth, including on their running surfaces.

File depending on chain type (90° to the guide bar).

A le holder makes le guidance easier. It is marked for the

correct sharpening angle of:

α = 25°

α = 30°

α = 35°

(keep the marks parallel with the chain when ling, see

illustration) and limits the cut depth to the correct 4/5 of the

le diameter. See “Extract from the spare parts list”.

After having sharpened the chain, the height of the depth

limiter must be checked by means of a chain gauge. See

“Extract from the spare parts list”.

Correct even the smallest excess height with a special at

le (1). See “Extract from the spare parts list”.

Round o the front of the depth limiter (2).