ARMY TM 9-2815-259-24 AIR FORCE TO 38G1-125-2 MARINE CORPS 09249A/09246A-24 5-102 (38)   Install vent tube, refer to TM 9-6115-671-14. (39)   Fill engine with clean oil and proper coolant, refer to TM 9-6115-671-14. (40)   Perform engine break-in and standard performance checks, refer to TM 9-6115-671-14. 5.4.9   OIL PUMP ASSEMBLY. NOTE The following procedures require complete access to the engine.  If necessary, remove engine from generator set, refer to TM 9-6115-671-14.   Mount engine on repair stand (NSN 4910-01-016-1835 or equal) as outlined in paragraph 4.10. a.    Removal. (1) Drain engine lubrication system, refer to TM 9-6115-671-14. CAUTION Oil inlet line is fragile and can become twisted and damaged during maintenance.  Always use one wrench to hold one fitting stationary while the other fitting is loosened or tightened.  Failure to comply can cause damage to equipment. (2) Disconnect turbocharger oil inlet line (3, Figure 4-36) at turbocharger. (3) Remove oil pan, refer to paragraph 4.5.3. (4) Loosen nut (1, Figure 5-86) several turns until nut covers end of shaft.  Using two small pry bars, apply force between front plate and gear (2) on two sides of gear.  If gear does not loosen, loosen capscrews (3, 6, and 10) and strike nut with a small lead hammer while applying force to gear until gear loosens.  Remove nut and gear.  Discard nut. (5) Remove capscrews (3), pick-up tube assembly (4) and O-ring seal (5).  Discard O-ring seal. (6) Remove capscrews (6), cover (7), outlet tube (8), and O-ring seals (9).  Discard O-ring seals. (7) Remove capscrew (10) and housing (11). (8) Cover all openings to prevent entry of foreign material.