www.changlin.com.cn Air Cleaner Restriction NOTE: Never operate the engine without an air cleaner. Intake air must be filtered to prevent dirt and debris from entering the engine and causing premature wear. 45 / 167 pages C heck e i T r t i A ( Maximum intake air restriction is 635 mm [25.0 in.] of water for turbocharged engines. Naturally aspirated ngines have a maximum restriction of 510 mm [20.0 n.] of water. urbocharged engines must be operated at rated RPM and full load to check maximum intake air restriction. Replace the air cleaner element when the restriction eaches the maximum allowable limit or clean according o the manufacturer's recommendations. NOTE:
Follow the manufacturer's instructions when cleaning or replacing the air cleaner element. Check the air cleaner service indicator, if equipped. Change the filter element when the red indicator flag (2) s at the raised position in the window. (1) fter the air cleaner has been serviced, push the button 3) to reset the service indicator.