Governor Barrel Replacement

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 shaft (27) and fuel adjusting screw (23) for signs of wear or damage; replace if necessary. NOTE Do not attempt to remove the throttle shaft sleeve; it is honed to size after assembly to housing and due to close tolerances, the housing and sleeve must be replaced if damaged or worn excessively. (19) Visually inspect filter screen assembly (13) for holes or imbedded metal particles in mesh. Replace if damaged, otherwise, clean in fuel oil and dry with compressed air. (20) Check drive shaft bushing (49) for signs of seizure or burrs. Replace if damaged. (21) Check drive shaft bushing (49), XD with inside micrometers; if worn beyond 0.7525 inch (19.11 mm) replace bushing as follows: (a) Remove worn bushing using a gouge chisel or half inch pipe tap. After tapping bushing, screw a half inch pipe cap on a close nipple and screw the half inch nipple into the bushing. Insert a punch through the rear of the housing and drive out the bushing. (b) Apply a thin coat of high-pressure lubricant to a new front drive shaft bushing, press bushing into housing flush with housing bore using an arbor press. (c) Line ream bushing to 0.7495 to 0.7505 inch. (19.04 to 19.06 mm) with the ream fixture, and a well-oiled 0.750 inch (3/4 inch {19.05 mm}) reamer. Check bushing ID. (d) Visually check governor sleeve and barrel (41 and 42) and plunger (34) for wear; replace if worn or damaged. (22) Governor Barrel Replacement. (a) To locate a new governor sleeve and barrel (41 and 42, figure 13-20), scribe a center- line on the barrel and sleeve (41 and 42) and spring pack housing (43) lining up the fuel passages so fuel flow will not be restricted. (b) Heat housing (50) in oven to 300 F (149 C). (c) Coat new governor barrel with high- pressure lubricant. (d) Place governor sleeve and barrel (41 and 42) in housing bore with chamfered end first and location pin hole on bottom side, lining up scribe marks, then press barrel in housing with arbor press until it bottoms against spring pack housing. This is important to align barrel retaining pin holes. (e) Install spring (36), shim (35), plunger (34), spacer (40), washer (39), driver (38), and secure with pin (37). NOTE The chamfered side of washer (39) must be installed next to driver (38). There must be at least 0.002 to 0.005 inch (0.05 to 0.13 mm) clearance between washer face and driver so washer will float. (23) Air Fuel Control Replacement. (a) Lubricate new barrel O-rings (7 and 8, figure 13-20) on plunger (6). 13-48

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