TM 5-6115-434-12 Table 3-3.  Troubleshooting Malfunction Probable cause Corrective action 7 Engine start, accelerates to c.  Generator shorted, creating c.  Replace failed generator governed speed or less drag on engine and caus- (400 Hz or 60 Hz) (para and shuts down. ing shutdown at approxi- 3-64 or 3-65). -Continued. mately 35 percent governed speed. 8 Combustion occurs but a.  Low charged batteries a.  Check specific gravity of engine will not accel- electrolyte (para 2-1b). erate or accelerates Recharge or replace bat- too slowly. teries as indicated or uti- lize external power source (para 2-3b(4)). b.  Low or depleted fuel supply b.  Replenish fuel supply. c.  Control air lines leaking c.  Check control air lines and fittings.  If air lines and fittings are secure, re- place fuel control assem- bly (para 3-24). d.  Acceleration limiter valve d.  Refer to para 3-8e(3) for improperly adjusted or adjustment procedure. failed. If proper adjustment can- not be obtained replace fuel control assembly (para 3-24). e.  Fuel control assembly failed e.  Replace failed fuel control assembly (para 3-24). f.  Acceleration and overtempera- f.  Refer to para 3-8e(1) for ture control thermostat adjustment procedure.  Re- improperly adjusted or place failed thermostat failed. (para 3-26). g.  Fuel atomizer valve capsule g.  Replace fuel atomizer assem- stuck closed or carbon on bly (para 3-25). nozzle. h.  Fuel atomizer assembly h.  Replace failed fuel atomizer failed. assembly (para 3-25). i.  Air being bled from engine i.  Check load control valve prematurely. for closed position.  Re- place load control valve (para 3-70) if full closed. Check for leakage from ducts and turbine plenum. j.  Other causes j.  Refer other causes to direct and general support main- tenance personnel. 9 Excessive exhaust gas a.  Acceleration and overtempera- a.  Refer to para 3-8e (1) for temperature on start. ture control thermostat adjustment procedure. improperly adjusted or Replace failed thermostat failed. (para 3-26). b.  Acceleration limiter valve jm- b.  Refer to para 3-8e (3) for properly adjusted or failed. adjustment procedure.  If proper adjustment cannot be obtained, replace fuel control assembly (para 3-24). c.  Fuel atomizer flow divider c.  Replace fuel atomizer assem- valve stuck open. bly (para 3-25). d.  Other causes d.  Refer other causes to direct and general support main- tenance personnel. 3-9