Weber mt 0116538, Operating And Maintenance Manual

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Remove the cover cap from the oil drain valve.
Screw the oil drain hose onto the oil drain valve.
CAUTION! Danger of scalding due to hot oil.
Wear protective gloves.
Use extra caution.
Allow the oil to drain into the collection vessel.
Unscrew the oil drain pipe.
Attach the cover cap to the oil drain valve.
Fill fresh oil into the engine in accordance with the
specification.
Check the oil level and top off to the “max.” mark.
Insert the oil dip stick.
8.2.3. Clean the air filter Open the air filter cover. Loosen the wing nut to do so.
Remove the air filter insert. Loosen the wing nut to do so.
Separate the non-woven material from the air filter insert.
Blow out the non-woven material and the air filter insert from
the inside to the outside.
Check for damage. Use a new air filter insert in case of
damage or excessive clogging.
Pull the non-woven material over the air filter insert.
Install the air filter insert using the corresponding wing nut.
Install the air filter cover using the corresponding wing nut.