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2. Remove the filter cover.
3. Wash filter element in soap water. DO NOT USE PETROL!
4. Air dry filter element.
5. Place a few drops of SAE30 oil on the foam filter and squeeze tightly to remove any excess oil.
6. Reinstall the filter.
NOTE: Replace filter if frayed, torn, damaged or unable to be cleaned.
Fig. 14C
10.2 CUTTING BLADE
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 hold 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. The blade may be re-sharpened by removing it and either grinding or
filing the cutting edge keeping 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 eventual 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 to figure 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
14


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