Makita DCS430, DCS431, DCS520, DCS520i, DCS540, DCS5200, DCS5200i manual Cleaning the guide bar

E

Chain	085 (.325")	094, 102 (3/8")
Sharpening angle α	25°	30°
Front rake β	60°	85°

-The sharpening angle α must be identical for all cutters! Different angles result in a roughly, irregularly running chain, increase wear and tear and cause chain beakage.

-The front rake β of the cutter results from the cut depth of the round file. If the proper file is used in the right manner, the correct front rake will be obtained automatically.

4/5

α

G

-The file holder makes file guidance easier. It is marked for the correct α sharpening angle (keep the marks parallel with the chain when filing, see illustration) and limits the cut depth to the correct 4/5 of the file diameter. See "Accesso- ries" for the order number.

Cleaning the guide bar

CAUTION:STOP Protective gloves must be worn.

F

Files and how to work with them

-Sharpen using a special file holder with a saw chain round file:

-085 (.325") chain: File the first cutter half with a 4.5 mm dia. round saw-chain file, then switch to a 4 mm dia. file.

-094, 102 (3/8") chain: Round saw-chain file 4.8 mm diam- eter.

Normal round files are not appropriate for this work. See "Accessories" for the order number.

-The file should cut only when pushed forwards (arrow). Lift the file when leading it backwards.

-First sharpen the shortest cutter. The length of this cutter is then the standerd for all other cutters of the chain.

-Always guide the file as in Fig. F shown.

H I

-After having sharpened the chain, the height of the depth limiter must be checked by means of a chain gauge. See "Accessories" for the order number.

-Correct even the smallest excess height with a special flat file (H). See "Accessories" for the order number.

-Round off the front of the depth limiter (I).

J

Regularly inspect the bearing surfaces of the guide bar for damage, and clean them with a suitable tool.

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