TM 9-2350-256-103-10. MAIN ENGINE AIR CLEANER.WARNINGNBC contaminated filters must be handled using adequate precautions (refer to FM21-40) and must be disposed of by trained personnel.CAUTIONMain engine air cleaner is only source of air to the engine. It is your responsibilityto ensure it is properly maintained to avoid damage to engine. Maintenanceinstructions are given for air intake screen, air cleaner dust cover, and filterelement.a.Air Intake Screen.Remove dirt or mud restricting airflow through air intake screen (1).b.Filter Element Replacement. A restriction indicator (1) is located above each air cleaner. It will read greenwhen air cleaner is working properly. As filter becomes restricted, a red sleeve (2) appears. When airflowrestriction is maximum, a red sleeve fully covers green and locks into place. When this happens, filter elementmust be cleaned or replaced. To reset it, press top of restriction indicator.3-48
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