Webb WER21HW Operator's Manual page 10

CHANGING BLADES
Empty the oil tank before removing the blade.
To replace the blade, undo the screw.
Reinstall as illustrated. Tighten the screw properly. Tightening torque 45 Nm.
When replacing the blade, the blade screw should also be replaced.
CHANGE OIL
1. Run the engine until it is warm (not hot).
2. Disconnect the spark plug wire and keep away from the
spark plug.
3. When the engine is still warm, remove the oil drain
plug (A). Drain the oil into a properly sealed container.
4. Clean the oil drain plug before securing it.
5. Place the engine on a level surface. Remove dipstick.
Add new recommended oil about 0.6L slowly to the
upper limit on the dipstick, do not overfill.
6. Replace dipstick.
Warning: Avoid skin contact with used engine oil. Wash
your skin with soap and water after changing the oil.
Caution: Used oil is a hazardous waste product. It is recommended that used oil is taken to your local
recycling centre in a properly sealed container. Do not discard with household waste.
Spark Plug
Once the engine has cooled, remove the spark plug and clean the plug with a wire brush. Using a feeler
gauge, set the gap to 0.75 mm (0.030"). Refit the spark plug taking care not to overtighten it.
NGP
40MnB
D5-5A-002-000
9
A