IDLER PULLEY PARTS (F10000RG-2)

TM5-4110-234-14

TO 40R7-5-7-1

(5)

Use a 3/4 socket and socket wrench with an extension and turn the engine mount adjusting screws located

under the compressor mount to move the engine and release belt tension. Be sure you turn both screws the same

number of full turns.

(6)

Remove the belts.

b. Installation.

NOTE

Use only matched sets of two belts on the engine to compressor drive. Unmatched sets are difficult or

impossible to adjust and result in excessive wear and improper misalined drive.

(1)

Place a matched set of two belts on the engine and compressor pulleys. Be sure that the belts are in the two

grooves closer to the compressor.

(2)

Use a 3/4 socket and socket wrench with an extension and turn the engine mount adjusting screws located

under the compressor mount to move the engine. Proper belt tension is a deflection of 1/2 inch (1.3 cm) midway between

the pulleys.

Both adjusting screws must be moved the same amount. Do not permit the engine to twist or cock on its

mount. Uneven belt wear and bearing damage will result.

(3)

Tighten the four engine mounting bolts.

(4)

Place the fan drive belt back on the compressor pulley.

(5)

Push the idler pulley to bring proper tension in the fan belt. Proper tension is a deflection of 1/2 inch (1.3 cm)

midway between pulleys. Tighten the idler pulley setscrew.

(6)

Close the access doors.

(7)

Connect power.

4-46. IDLER PULLEY PARTS (F10000RG-2)

See figure 4-23.

a. Lubrication. See paragraph 4-12.

b. Removal/Disassembly.

(1)

Disconnect power and open the side access doors.

(2)

Remove the upper two cap screws and lock nuts and the lower cap screw and lock washer and remove the

idler pulley bar support.

(3)

Loosen the idler arm setscrew and pull the assembled idler arm, shaft and pulley from the support bar.

(4)

See figure 4-24 and loosen the setscrew in the idler shaft collar.

(5)

Pull the collar and the idler pulley off of the shaft.

(6)

If the shaft is bad, place a wrench on the machined flats on the end of the shaft and unscrew the shaft from

the arm.

4-57