ATIKA BKS 38 - Betreibershandbuch PDF herunterladen (Seite 27)

Â Firmly clamp the chain saw's guide bar in a vice and

block the saw chain. Apply the chain brake

To advance the saw chain release the chain brake.

Use the supplied round file (37) to file all sharpening

angles (α=35°).

LDo only apply 2-3 strokes with the file.

L The sharpening angles must be identical. Unequal

sharpening angles result in an erratic chain run or chain

breaking.

Hold the file at right angles (90°) to the guide bar when

sharpening.

Using the round file and the correct sharpening angle the

correct breast angle β will result.

The planing tooth lengthes (a) must be equal. Unequal

lengthes may lead to erratic chain run or chain breaking.

Once all sharpening angles are filed your saw chain is

sharp, but it will possibly not cut. There must be always

a depth gauge distance (T = distance between depth

gauge and cutting edge).

L Use a flat file to file the depth gauge distance.

Be sure to chamfer the leading edge of your depth

limiter with a file. The original shape of the cutting link

must be preserved.

L Only remove a little amount of material when

sharpening.

You can also sharpen your saw chain yourself by using our

electric sharpener KSG 220 (article-no.: 302360).

Cleaning of guide bar

Â / Â

 Check and clean the oil outlets (A) of the guide bar and the

guiding groove (B) on a regular basis.



Remove any burr using a flat file.

 Turn round the guide bar after each chain exchange /

sharpening to avoid single-side wearing.

L Immediately replace a damaged guide bar.

Chain wheel

The demand of the chain wheel is particularly great. Check

regularly the teeth of the chain wheel for wear or damages.

Clean the chain wheel (18) and the guide bar fixing

device using a brush.

L A worn or damaged chain wheel reduces the durability

of the saw chain and should therefore immediately be

exchanged by the customer service.

Cleaning the air filter

Clean the air filter from dust and dirt on a regular basis to

prevent

- starting problems,

- loss of output,

- too high fuel consumption.

Clean the air filter every 8 operating hours, or more frequently in

dusty environments.

1. Open the air filter cover (21).

2. Remove the air filter (22).

3. Cover the intake opening with a clean cloth to prevent dirt

from coming into the carburettor.

4. Pull apart the both parts of the air filter.

5. Wash the air filter in a luke warm soapy solution.

Do not puff/blow out dirt particles, otherwise there is a

risk of eye injury.

6. Allow the air filter to dry well and reinsert it.

L Damaged air filters must be replaced without

delay.

Checking / Replacing the fuel filter

The chain saw is equipped with a fuel filter. Check it regularly

and clean or replace it if required.

For this open the tank cap (9) and pull out the fuel filter (10).

If the filter is only slightly contaminated, carefully pull it from the

oil line and clean it using petroleum ether.

L If it shows a great extent of contamination, replace the

fuel filter.

Checking / Replacing the spark plug

- Do not touch the spark plug or the spark plug

connector while the engine is running. High voltage!

- Risk of burning on the hot engine.

- Wear protective gloves.

Check the spark plug and the spark gap on a regular basis.

For this proceed as follows:

Open the air filter cover (21).

Pull the spark plug connector (23) from the spark plug

(24). Remove the spark plug using the supplied wrench

(36).

The spark gap must be 0.6 to 0.7 mm.

Clean the spark plug when it is contaminated.

Install the spark plug in reverse order.

Do not overtighten the spark plug.

Replace the spark plug:

- every 100 hours or once in a year (whichever case comes

first)

- when the insulating body is damaged,

- when the electrodes show excessive erosion,

- when the electrodes show excessive dirt or oil.

Use the following spark plug type:

L8RTF/NHSP LD, BPMR7A/NGK, BM6A/Torch,

RCJ7Y/Champion

Comparable with reference types:

BOSCH WSR6F, OREGON OPR15Y

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