Pulsation Damper Overhaul.

TM-5-6115-593-34 Generator Set Diesel Engine Driven Tactical Skid Mtd. 600 Kw 3 Phase 4 Wire 120/208 and 240/416 Volts Manual
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TM5-6115-593-34 NAVFAC P-8-631-34 TO-35C2-3-463-2 Discard gasket (17). (b) Lift drive and driven gears and shafts from gear pump body. (c) Check pump shafts (14 and 15) for wear or scoring; discard if damaged. Replace shaft if worn smaller than 0.4998 to 0.5001 inch (12.695 to 12.703 mm) diameter. (d) If gears are scored or worn badly, the gears must be replaced. (e) Check gear body and cover for scoring or wear; replace parts as needed. (f) Check lubrication holes in cover and body; they must be clean. (g) Lubricate and slide shafts and gears into cover. (h) Position new gasket (17) and install body to cover. Align locating notches together. (i) Secure cover and body with dowels, tighten capscrews to 11 to 13 foot- pounds (15 to 18 joules). Check to see that pump turns freely with finger pressure. (j) Install a gear pump to fuel pump with screws (3), lockwashers (4), screws (6), washers (8), and lockwashers (7). (k) Install elbow (9) and orifice elbow (1). (43) Pulsation Damper Overhaul. (a) Remove body (5, figure 13-25) from cover (10). (b) Remove spring steel diaphragm (7); discard O-rings (6 and 8) and nylon washer (9). (c) Check for corrosion, excessive wear, or cracks in cover or diaphragm. Replace if necessary. (d) Install new O-rings (6 and 8) in grooves and new nylon washer (9). (e) Coat the diaphragm (7) with 10W or 20W oil and lay in cover (10). (f) Assemble cover to housing, and attach to fuel pump; replace O-ring (4) and torque capscrews to 11 to 13 foot- pounds (15 to 18 joules). (44) Fuel Shut-Off Valve Overhaul. (a) Remove four screws (5, figure 13-22), coil (6), fuel shield (7), O-ring (8), spring (9), and valve (10). Discard O-ring (8). (b) Remove manual override knob (12) and unscrew override shaft (14). Remove and discard O-ring (13). (c) Clean all parts except the coil assembly (6) in mineral spirits. NOTE Do not wet the coil with solvent; instead, wipe it with a clean lint-free cloth. (d) Visually check valve and valve seat for wear, bonding, failure, or corrosion. Replace if necessary. Valve seat should have a minimum seat 0.015 inch (0.38 mm) wide. (e) Check coil resistance with an ohmmeter; replace if coil resistance is below 30 ± 2 ohms. 13-51

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