TM5-6115-585-34NAVFAC P-8-262-12TO-35C2-3-455-2TM-05684C/05685B-MFigure 7-7. Battery Charge Alternator and Blower Wheel(1) Plug the oil cooler outlet using suitable plug.NOTE(2) Connect the oil cooler in suggested test set-up (see figure 7-6).Observe the arrangement of the conicalwashers in the torsion damper assemblies.(3) Apply 25 psi air pressure to the oil cooler.These washers must remain ‘in the same ar-(4) Close the valve and monitor the pressure. Arangement of the originally assembled set ordrop in air pressure indicates a leak in the oil cooler.the function of the dampers will be impaired.7-7. BLOWERWHEELASSEMBLY.a. Inspect (see figure 7-7).(1) Refer to Operator and OrganizationalMaintenance Manual and remove blower housing.(2) Check blower wheel (4) for cracks or brokenfins. Check for free play between blower wheel andhub. Replace torsion damper assemblies (6) if freeplay is present.b. Removal. Remove screw (l), lockwasher (2) andwasher (3), attaching blower wheel to crankshaft. Usetwo 5/16-24 screws in blower hub and a suitablec. Repair. Blower wheel and hub are a balancedunit and should not be disassembled. To replace tor-sion damper assemblies, remove screws, nuts, andreplace torsional dampers and reuse flat washersand spacers as required for that type set. Torquescrews 28-30 ft-lb.d. Install.(1) Mount blower wheel assembly to crankshaftusing screw (l), lockwasher (2) and washer (3). Torquescrew (1) to 65-70 ft-lb.(2) Refer to Operator and Organizationalpuller to remove blower wheel (4) and key (5).Maintenance Manual and install blower-housing.Change 2 7-7
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