3. Replace air cleaner primary element:
Once yearly or every 1000 hours whichever comes
first.
NOTE :
• Check to see if the evacuator valve is
blocked with dust.
(1) Secondary element
(2) Primary element
(3) Cover
(4) Evacuator valve
NOTE :
• The air cleaner uses a dry element, never
apply oil.
• Do not run the engine with filter element
removed.
• Operating in dusty conditions requires more
frequent maintenance.
• Align the arrow marks when reinstalling the
air cleaner cover.
• Do not touch the secondary element except
in cases where replacing is required.
(See Replacing air cleaner primary element
and secondary element on page 79.)
Evacuator valve
Open the evacuator valve once a week under
ordinary conditions - or daily when used in a dusty
place - to get rid of large particles of dust and dirt.
2. Checking the fuel filter
WARNING
To avoid serious injury or death:
• Be sure to stop the engine and remove the key
when attempting to make the following checks
and changes.
• Never fail to check the fuel lines periodically.
The fuel lines are subject to wear and aging.
Fuel may leak out onto the running engine,
causing a fire.
1. Open the step and hood.
2. Close the fuel valves below the fuel tanks LH and
RH.
(1) Fuel valve
3. The fuel line is made of rubber and ages regardless
of service period.
4. If the fuel line and clamps are found damaged or
deteriorated, replace them.
MAINTENANCE
EVERY 100 HOURS
70
ZD1211,ZD1221
