T M 5 - 6 1 1 5 - 5 8 4 - 34NAVFAC P-8-622-34T O - 3 5 C 2 - 3 - 4 5 6 - 2T M - 0 5 6 8 C - 34Figure 7-19. Oil Pump Removal (Sheet 2 of 2)b. Remove.(1) Remove generator, engine flywheel, andadapter.(2) Unscrew recessed plug (1, figure 7-20) inrear bearing plate (4).(3) Lift out by-pass spring (2, figure 7-20) andvalve plunger (3).Figure 7-20. Oil By-pass Valvec. Cleaning and Inspection.(1) Thoroughly clean spring (2, figure 7-20) andplunger (3). Replace defective or worn parts.d. Test. Determine proper valve operation by check-ing spring and plunger against the following values.(1) Plunger diameter should be 0.3365 inch to0.3380 inch.(2) Spring free length should be 2-5/16 inches ±1/16 inch. Spring force should be 2.25 ± 0.11 poundswhen spring- is compressed to ainches.e. Installation.(1) Assemble spring (2, figure(3) and install in bearing plate (4).(2) Install plug (l).7-14. GEAR COVER ASSEMBLY.a. Inspect (see figure 7-21).length of 1-3/167-20) and plunger(1) The governor shaft is supported by two setsof needle bearings and should not show signs of bind-ing when rotated through its free travel.(2) The oil seal should be inspected for leaks anddamage.b. Removal.(1) Refer to Operator and organization~Maintenance Manual and remove starter lockoutswitch. Remove governor arm (3, figure 7-2) byloosening screw (3, figure 7-22).(2) Refer to Operator and OrganizationalMaintenance Manual and remove blower housing.(3) Refer to paragraphs 7-7 and 7-8 and removeblower wheel and stator.(4) Remove screw from oil filter adapter. Re-move screws (1, figure 7-21), lockwasher (2), flat-washer (3), screw (4), lockwasher (5) holding gear7 - 2 1
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