TM 5-6115-590-12Figure 4-47. Tach-Generator, Relief Value and 0G1 Filter Replacement (TS 6115-590-12/4-47}b.Installation.(1) Install replacement switch assembly onengine using new packing. Secure switch assembly toengine with attaching washers and nuts. Tighten nutssecurely.(2) Reconnect wiring harness connector toswitch assembly.c.Adjustment.Refer to paragraph 4-14e (6) foradjustment procedures for the switch assembly.4-87.Acceleration Control Thermostata.Removal.(1) Hold flats on thermostat valve (fig. 4-49)with a wrench and remove tube assembly.(2) Remove one attaching bolt and washer,retainer plate and shim washers. Remove thermostatfrom turbine plenum flange.(3) Remove thermostat valve and packing fromthermostat body.b.Installation.(1) Install satisfactory or replacement valve inthermostat body. Tighten valve securely.(2) Install replacement thermostat in plenumflange with side stamped "AFT" facing toward rear ordownstream.(3) Install washers (shims) as required for an0.010 to 0.020 inch pinch between retainer plate andmounting boss, then install retainer plate.(4) Coat threads of attaching bolt with a film ofcompound (Fel-Pro C-5), then install washer and coatedbolt. Tighten bolt to 50 to 70 inch-pound torque.(5) Hold flats on thermostat valve with a wrenchand connect tube assembly. Tighten tube assembly to150 inch-pounds torque.(6) Check controlling temperature and adjust asrequired in accordance with paragraph 4-14e (1).4-88.Plenum Drain Valvea.Removal.Remove tube assembly, then removedrain valve (fig. 4-49) and packing from turbineplenum.b.Installation.Install replacement drain valve inturbine plenum with new packing. Install valve witharrow pointing down. Tighten valve securely thenreconnect tube assembly.4-89.Electrical Engine Startera.Removal.(1) Tag and remove wiring harness leads fromstarter terminal.(2) Remove four attaching nuts and washersand carefully remove starter and packing (fig. 4-43) in astraight line from the engine. Discard packing.b.Installation(1) Install replacement starter on engine usingnew packing. Use care to avoid damage to starterpawls and engine jaw.(2) Secure starter assembly with attachingwashers and nuts. Tighten nuts securely. Reconnectwiring harness leads to starter terminals.4-104
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