TACHOMETER GENERATOR.

TM 55-4920-424-13&P

7-23. Assembly and Installation of Fuel Filter. (See figures 5-1 and 5-6.)

a. See figure 5-6. Assembly of the fuel filter is the reverse of disassembly. Use new gasket (7), new O-ring (4), and

new filter element (2). Tighten filter case to 20 to 30 pound-feet torque.

b. See figure 5-1. Installation of the fuel filter is the reverse of removal. Use new O-rings (24), reinstall reducers

(23).

7-24. TACHOMETER GENERATOR.

7-25. Removal of Tachometer Generator. (See figure 5-1.)

Note

An adapter is used to couple the tachometer generator to the speed switch.

Ensure that adapter is removed from tachometer generator or from speed switch.

a. Disconnect electrical connector from receptacle on tachometer generator (58).

Place a protective cap over

threads of receptacle.

b. Remove nuts (59) and washers (60) attaching tachometer generator to speed switch. Disengage tachometer

generator from speed switch.

c. Remove adapter (61) from either tachometer generator or speed switch.

Place adapter (61), nuts (59), and

washers (60) in a cloth bag.

d. Stow tachometer generator and cloth bag in stowage compartment inside console door.

7-26. Installation of Tachometer Generator. (See figure 5-1.)

a. Remove tachometer generator (58) and cloth bag from stowage compartment inside console door. The cloth bag

contains coupling adapter and hardware to attach tachometer generator to speed switch.

b. Installation of the tachometer generator is the reverse of removal. Refer to figure FO-1 for harness installation.

7-27. THERMOCOUPLE.

7-28. Removal of Thermocouple. (See figure 5-1.)

a. Disconnect electrical wires from terminal posts of thermocouple (111). Reinstall nuts and washers on terminal

posts to prevent loss.

b. Remove thermocouple (111) from top side of combustor exhaust end by unscrewing integral swivel nut on

thermocouple from threaded mounting boss.

c. Carefully stow thermocouple in stowage bracket (112) by screwing swivel nut on thermocouple on threaded end

of stowage bracket. Reconnect electrical wires to terminal posts.

7-8