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Rotate the filter (4) counterclockwise by a filter wrench to take it out.
Clean the mounting surfaces of filter housing.
Apply a thin film of oil to the washer of new filter.
Manually install new filter.
After the washer of filter comes into contact with the mounting surface, tighten the filter further
for one turn (by oil filter wrench). (Tightening torque by oil filter wrench: 19.6~23.5N.m).
Add lubricating oil till the oil level is within upper limit (H) and lower limit (L) of oil dipstick (1).
Both excessive and insufficient oil levels can cause malfunctions.
Tighten the filler cap.
Start the engine and run at low idling speed for 5min.
Check the oil level after approximately 10min.
Cleaning of Air Filter
Please stop the engine and wait for the machine to cool down before maintenance.
While using compressed air, please wear necessary protection appliances, including goggles and
filtration mask, as the metal fragments and other objects will splash to cause accidents of serious
harm.
Important: Take caution not to scratch the filter element. Do not use any damaged filter element.
Important: During operations under dusty environment, please daily fulfill the checking and
maintenances for the machine. Important: Ensure to steadily install the filter element and dust
cover. Otherwise, the ingress of dust into the cylinders will damage the engine.
Open the engine hood.
Loosen the clamp (1) and take out the dust collector
(2).
Clean the inside of dust collector (2).
Take out the primary filter element (3).
Cover the inlet and outlet on the back of body (4) by
cloth or tape to guard against ingress of dusts.
<If the secondary filter element is installed>
To prevent the ingress of dusts into engine, do not
take out the secondary filter element (5).
Clean the inside of housing (4).
Checking of accelerator control system
The accelerator joystick and the speed regulator on
the engine side are connected by wiring. Check the
wires at their fixing positions for presence of
stretching and looseness.
If the wires at their fixing positions are stretched or loose, there probably has a malfunction.
The replacement and adjustment of wires require experiences. Please ask your sales or service
dealer for operations.
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