Hitachi CH 22EAP(50ST) Safety Instructions And Instruction Manual page 10

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Weekly maintenance
○ Check the starter, especially cord and return
spring.
○ Clean the exterior of the spark plug.
○ Remove it and check the electrode gap. Adjust it
to 0.024‫ 6.0( ״‬mm), or change the spark plug.
○ Clean the cooling fi ns on the cylinder and check
that the air intake at the starter is not clogged.
○ Check gear case is fi lled with grease.
○ Clean the air fi lter.
Monthly maintenance
○ Rinse the fuel tank with gasoline.
○ Clean the exterior of the carburetor and the space
around it.
○ Clean the fan and the space around it.
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