Bedienungsanleitung Cobra MX514SPB (Seite 15 von 19) (Englisch)

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CAUTION: Be sure to disconnect and ground the spark plug wire before working on the cutting blade to prevent accidental

engine starting. Protect hands by using heavy gloves or a rag to grasp the cutting blades.

Tip mower as specified in separate engine manual. Remove the hex bolt and washer, which holds the blade and blade adapter to

the engine crankshaft. Remove the blade and adapter from the crankshaft.

WARNING: Periodically inspect the blade adapter for cracks, especially if you strike a foreign object. Replace when

necessary. For best results your blade should be sharp. Slightly worn blades may be re-sharpened with care. After removing the

blade, it may be ground or filed, so that the cutting edge is as close to the original bevel as possible. It is extremely important that

each cutting edge receives an equal amount of grinding to prevent an unbalanced blade. Improper blade balance will result in

excessive vibration causing damage to the engine and mower. Be sure to carefully balance blade after sharpening. The blade

can be tested for balance by balancing it on a round shaft screwdriver. Remove metal from the heavy side, until it balances

evenly.

Before reassembling the blade and the blade adapter to the unit, lubricate the engine crankshaft and the inner surface of the

blade adapter with light oil. Install the blade adapter on the crankshaft. Refer Fig.15. Place the blade with the part number facing

away from the adapter. Align the washer over the blade and insert the hex bolt. Tighten the hex bolt to the torque listed below:

Fig. 15

10.3 BLADE MOUNTING TORQUE

Center Bolt 40Nm-50Nm, to insure safe operation of your unit. ALL nuts and bolts must be checked periodically for correct

tightness.

After prolonged use, especially in sandy soil conditions, the blade will become worn and lose some of the original shape. Cutting

efficiency will be reduced and the blade should be replaced. Replace with an approved factory replacement blade only. Possible

damage resulting from blade unbalance condition is not the responsibility of the manufacturer.

When you change the blade, Must use the original type marked on the blade (Cobra Part 263002489) (for order the blade, please

contact your local dealer)

10.4 ENGINE

Refer to the separate engine manual for engine maintenance instructions.

Maintain engine oil as instructed in the separate engine manual packed with your unit.

Read and follow the engine instructions carefully.

Service the air filter as per the separate engine manual. Clean every few hours under extremely dusty conditions. Poor engine

performance and flooding usually indicates that the air filter requires attention. To service the air filter, refer to the separate

engine manual packed with your mower. The spark plug should be cleaned and the gap reset annually. Spark plug replacement

is recommended at the start of each mowing season. Check the engine manual for the correct plug type and gap specifications.

Clean the engine regularly with a cloth or brush. Keep the cooling system (blower housing area) clean to permit proper air

circulation, which is essential to engine performance. Be certain to remove all grass, dirt and combustible debris from the muffler

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