3-15.3. ENGINE EXHAUST MUFFLER AND SPARK ARRESTER.

3-15.2. ENGINE OIL BATH AIR CLEANER FILTER.

TM-5-4310-393-14 Air Compressor Diesel Engine Driven 20 CFM 3200 PSI Model KA7-DA Manual
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TM 5-4310-393-14 3-15.3. ENGINE EXHAUST MUFFLER AND SPARK ARRESTER. This task covers: A. Inspect B. Replace. Tools: Materials/Parts: Tool kit, General Mechanic's Set Scratch Shim Set (P/N 01284600) Wire Brush NSN 7920-00-044-4857 Muffler (P/N MUF-0018) Spark Arrester (P/N 18782-AP) Equipment Conditions: Engine secured, Muffler Cold A. Inspect. 1. Cleaning the Muffler for Inspection. a. Remove two hex nuts (Figure 3-15, Item 6), and washer (9) and remove the long bolt (2).Remove the bottom cup (10). b. Remove u-bolt (7) and spark arrester (8). c. Remove hex nut (11) and disassemble spark arrester. d. Using a stiff brush, clean soot, carbon, and dirt from the cup, each spark arrester plate, and from the inside of muffler (1) and bottom cup (10). NOTE For best results, clean all parts dry, without solvents. e. examine the cleaned parts for corrosion or burn-through f. If parts are satisfactory, reassemble in reverse order. If unserviceable, replace the muffler. FIGURE 3-15. ENGINE EXHAUST MUFFLER AND SPARK ARRESTER B. Replace 1. Replacing the Muffler. a. Remove hex nuts (5) from studs (4) which secure the muffler to the crankcase. Remove and discard the shim set (3). b. Replace the shim set, complete muffler and spark arrester with new parts as necessary, in reverse order of removal. 3-24

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