TB-9-2300-378-14 Technical Bulletin for Air Induction System M48 M60 Download
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TB 9-2300-378-14 (3) Procedure (Fig. 4-4). Figure 4-4. Top loading air cleaner access door bolt holes rework. (a) Remove air cleaner filter element (para. 3-2a). (b) Cover housing opening with tape and cardboard or a large cloth to prevent metal chips and dirt from entering the filter area. (c) Install fabricated drill guide in bolt hole (view A). (d) Place fabricated drill stop on a No. 12 drill bit to limit depth to 1-7/16 inch. Wrap tape around bit to hold stop in place (Fig. 4-3). CAUTION Do not drill hole through without drill stop installed or damage to air cleaner precleaned tubes will result. (e) Using a hand drill with the No. 12 drill bit and stop, carefully drill through incompletely machined portion of hole (view B). 4-4