Casing Reassembly. - TM-5-4210-205-120045

g. Casing Reassembly.

h. Circulating Air Blower Reassembly.

(1) Spread the casing (1); install the assembled

(1) Place the motor (47) within the motor clamp

combustion blower, burner, and combustion

assembly (51), allowing the front of the

chamber into the casing, passing the lead

motor to extend approximately 1/16-inch

wires from the preheater, ignition coil, and

beyond the clamp assembly.

Insert a

the combustion blower motor through the

screwdriver through the clamp shell to

grommet.

Connect the lead from the

tighten the screw (46).

ignition coil to the terminal on the contact

(2) Place the fan (52) on the motor shaft and

plate (64).

adjust the mounting position to allow

(2) Install the exhaust tube seals (81) around

approximately ,/16-inch clearance between

the combustion air ports and fasten together

the fan and motor hub.

Tighten the

the edges of the casing with screws (24).

setscrew (45) to secure the fan to shaft.

Install the spark plug seal (8), spark plug

(3) Rotate the motor shaft to check for free

seal washer (7), and the spark plug

rotation.

assembly (6) into the burner.

(4) Insert the circulating air blower assembly

(3) Position the heater mounting base assembly

(49) through air intake, first passing the lead

(80) at the bottom of the casing and fasten

wire through the grommet (23). Fasten the

with four screws (79).

assembly to the casing with three screws

(50).

198. Battery Box

Refer to TM 5-4210-205-12 for repair procedures.

199. Battery Compartment Shut-off Valve

a. Removal. Disconnect all liquid lines at the valve.

Remove the two U-bolts and the valve.

b. Installation. Install in reverse of removal.

200. Liquid Circulating Pump

a. Removal. Remove nipple (58, fig. 71.30) and

elbow (60) from the pump assembly. Remove coupling

from the pump shaft. Remove attaching parts and the

pump.

b. Installation. Install in reverse of removal.

201. Fuel Pump

a. Fuel Pump Test.

(1) With the fuel pump assembled, connect a

power supply of proper voltage to the fuel

pump, making sure to check for proper

polarity. Connect a fuel supply to the fuel

pump. Connect a liquid pressure gage to

the output port and operate the pump.

Figure 71.36. Battery compartment shut-off valve.

Observe the fuel discharge pressure. The

pump should discharge at 3 to 5 psig.

AGO 5667A