1．Coarse filter: After working each 100-200hours, remove the filter strainer, with compressed air, the swirl tube and the dust attached on the shell blowing. If there is damage to the individual blade swirl tube, lose swirl effect when the tube blockage can temporarily use a period of time.

2. The main safety filter, diesel filter: every 100-200h, remove the filter paper filter, gently tapping the face, make the fall off in the filter through the vibration of the dust on the surface; or with a soft brush in the crease at the back and forth brush filter; also available compressed air blowing outward from the filter to the heart, to remove the filter the purpose of dust

After working each work 300-400h, with the above maintenance filter paper filter method, the safety filter maintenance.

In the disassembly and maintenance of the filter, to prevent Pengpo filter. When the rupture or perforation of the filter paper, filter should be replaced in a timely manner. Installation of the filter and safety filter, the two end must be reliable sealing, no leakage. The filter is strictly prohibited to use any oil, water and other cleaning.

3. Ejector : ensure that the rubber tube, dust chamber and strainer set, exhaust pipe connection sealing reliable. Every 500-1000h, observe the ejector tube tail pipe bend, the throat is not damaged holes, once discovered immediately repair or replacement of the tail pipe, otherwise it will seriously affect the filtration the effect of the air filter.

4. Air cleaner outlet, and the connecting pipe between the intake manifold, exhaust pipe and muffler connection seal reliable. Disassembly of air filter, filter between the cover and the note gasket is intact, the timely exchange of new air filter, and tighten the clamp bolt and tighten the air cleaner at the top of the butterfly nut, to ensure that the intake is not short circuited the filter on.