TB-9-2300-378-14 Technical Bulletin for Air Induction System M48 M60 Download
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TB 9-2300-378-14 5-3. Air a. b. Cleaner Filter Clog Indicator. General. The air cleaner filter clog indicator provides a visual means of determining when the air cleaner filter element must be serviced without actually opening box and inspecting the filter element. Two models of indicators are used (fig. 5-3). Checking. the air cleaner presently being To determine if air filter element needs servicing. Check indication on air restriction indicator. Early Model - If red disk is visible, notify organizational maintenance Late Model - If reading is more than 25, notify organizational maintenance 5-4. Engine Air Intake (fig. 5-4). a. General. During normal and water fording operations, the engine air intakes (view A) must be positioned to draw air from the crew compartment. During extreme cold or an NBC attack alert, the engine air intakes must be reversed to draw air from the engine compartment (para. 5-4b). b. Reversal Procedure. (1) Remove cover. (2) Remove (3) Remove (4) Remove four screws and washers and cover (view A). A gasket is cemented to six nuts and washers (view B). eight nuts and washers. intake from bulkhead. (5) Install six nuts and washers on studs (view C). (6) Install eight nuts and washers on studs (view D). (7) Position cover on intake and install four screws and washers. (8) Install eight nuts and washers on studs. (View D). (9) Position cover on intake and install four screws and washers. 5-5. Preventive Maintenance Checks and Services (PMCS). The following find, correct, PMCS table lists checks and services that are to be performed on a daily basis to or report problems that are caused by normal wear and tear. Figure 5-3. Air cleaner filter clog indicator. 5-3