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English
MAINTENANCE SCHEDULE
NOTE: Initial oil change should performed after first 25 hours of use. Thereafter change oil every 50 hours.
Before changing oil, check for a suitable way to dispose of the old oil. Do not pour it down into
sewage drains, onto garden soil or into open streams, your local zoning environmental regulations
will give you more detailed instructions on proper disposal.
Items marked with a
䡬
required advanced skill and tools, so they should be done by the authorized
HITACHI Service Center.
Check the air cleaner
Check oil level and refill to the upper level before starting the engine.
Check all the points as follows:
Fuel level at fuel gauge, Oil and Fuel leakage, Bolt and nut tightening
Any damage of components.
Clean and wash air-cleaner element.
More often if used in dirty or dusty environments.
Change engine oil.
(The initial oil change must be conducted after the first 25 hours operation.)
Check spark plug, and clean and adjust if necessary.
Check and clean the fuel cock.
Replace spark plug.
Replace air-cleaner element.
Decarbonize cylinder head, valves and piston.
Inspect AC receptacle, AC circuit breaker and engine switch.
Check rotor and stator.
Replace engine mount rubber.
Overhaul engine.
Change fuel lines.
Daily
50 hours (Weekly)
100 hours
3 years
ENGINE OIL CHANGE
Change engine oil every 50 hours.
(for a new engine, change oil after 25 hours.)
1. Drain oil by removing the oil drain plug and the oil filler cap while the engine
is warm.
2. Reinstall the oil drain plug and fill the engine with oil unit it reaches the upper
level on the oil filler cap.
●
Use fresh and high quality lubricating oil to the specified quantity.
If contaminated or deteriorated oil is used or the quantity of the engine oil
is not sufficient, the engine damage will result and its life will be greatly
shortened.
OIL FILLER
CAP
(OIL GAUGE)
OIL DRAIN PLUG
Fig. 29
Fig. 30
