5-8. REPAIR/REPLACE VALVE PLATES AND UNLOADERS.

Figure 5-9. Bonnet Assembly, Diesel Cylinder Head, and Exhaust Muffler.

TM-9-4310-396-13 Air Compressor Portable 5 CFM Model PD32T5 Manual
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TM9-4310-396-13 MAINTENANCE OF VALVE PLATES AND UNLOADERS 5-8. REPAIR/REPLACE VALVE PLATES AND UNLOADERS. This task covers: a. Removal b. Installation INITIAL SETUP Tools Equipment Conditions : General Mechanics Tool Kit Engine stopped, para. 2-6.8 Compressor strainer assembly removed, para. 4-31 Materials/Parts Gasket (P/N 70153-11280) Gasket (P/N 70153-11021) Gasket (P/N 70153-11030) a. Removal. (1) Remove hexagon tube nuts (1, Figure 5-10) and nonmetallic tubes (2) from compressor cylinder head (3). (2) Remove tube nut (4) and metallic tube (5) from compressor cylinder head (3). (3) Remove cap screws (6), spring tension washers (7), upper cover (8) of low pressure magnetic unloader (9), and gasket (10). (4) Remove low pressure magnetic unloader (9). (5) Remove high pressure relief valve cover (11), preformed packing (12), and unloading piston and piston spring (13). (6) Remove cylinder head bolts (14), spring tension washers (15), and cylinder head (3). (7) Remove cylinder head gasket (16). (8) Remove compression valve plate (17) and gasket (18). b. Installation . (1) Clean top of compressor pistons and scrape off old gasket (18). (2) Install gasket (18) and compression valve plate (17). (3) Install cylinder head gasket (16). (4) Install low pressure magnetic unloader (9) to cylinder head (3). 5-19

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