Fan and Generator V-BeIt

TM 10-3930-222-20

(4) Remove the capscrews (15) and lockwashers

(2) When a denatured alcohol and water solution is

(14) that secure the fan to the hub and remove

used as emergency antifreeze protection, add 1

the fan.

ounce of corrosion inhibitor to each 2 quarts of

water used in the solution.

(5) Disconnect and remove the water hose at the

pump.

37. Fan and Generator V-BeIt

(6) Unscrew the screws (2) and lockwashers (3) that

secure the pump to engine and remove the

a. Adjustment and Inspection. Raise the hood and

pump.

inspect the V-belt for wear, frays, and proper tension,

(7) Using a suitable puller, remove the hub (12)

and adjust for 1/2-inch finger pressure deflection at

from the water pump.

midpoint between generator and fan pulleys. Refer to

b. Installation. Reverse procedures in a above.

figure 32 and remove the V-belt as follows:

39. Thermostat

b. Removal.

(1) Loosen the bolt and lockwasher that secure the

Removal.

generator to the generator adjusting plate.

(1)

Drain the cooling system.

Move the generator toward the engine and

(2)

Remove the top radiator hose.

remove the fan and generator V-belt from the

(3)

Disconnect the thermostat by-pass line.

generator.

(4)

Remove the mounting nuts and lockwashers

(2) Remove the capscrews that secure the

and remove the thermostat housing and gasket.

hydraulic pump drive flange yoke to the

(5) Remove the thermostat from cylinder head.

crankshaft pulley and move the flange yoke

from the pulley.

(3) Remove the V-belt from the pulley.

b. Installation. Reverse procedures in a above.

c. Testing.

c. installation.

Reverse procedures in b and a

(1) Place the thermostat in a suitable container of

above.

water.

(2) Heat the water.

38. Water Pump and Fan

(3) Use a thermometer to determine at what degree

a. Removal.

thermostat operates.

(1) Open the drain valve at bottom of radiator and

(4) A properly operating thermostat will begin to

drain the radiator.

open at 160F. and will be fully opened at 1800

(2) Disconnect the water recirculating tube (7, fig.

33) at pump body (4).

(5) If the thermostat does not operate properly,

discard it.

(3) Remove the fan belt (par. 37).