Coolant Fluid Tank (figure 4).

TB 9-1430-1533-40-1

a. Deenergize the HIPIR and disconnect to power

h. Connect the lower (RETURN) connection of

cable.

reservoir No. 2 (figure 7) to the pump.

b. Drain the entire HIPIR glycol cooling system.

* c. Refill the cooling system with tapwater, distilled

WARNING

or demineralized water.

* d. Run the HIPIR glycol pump for TWO MINUTES .

Failure to perform step (i) will result

* e. Drain the system again.

in breaking the VISUAL INSPECTION

f. Remove the glycol heater coolant Fluid Tank (1,

GLASS during pump-operation.

figure 3).

g. Remove the heat exchanger and dummy load (2

i. Turn the PUMP-PRESSURE REGULATOR fully

and 6, figure 3) may be purged in place.

counter clockwise (figure 8).

h. Remove the Modulator Oscillator Amplifier

j. Switch on the pump and let it run for 5 minutes.

Group (R.F. Pallet), (3, figure 4), Flow Rate Detector (4,

Stop the pump and press the air-relief-valve-button to

figure 3) High Voltage Power Supplies A1 and A4 (3,

empty the tank (figure 7).

figure 3).

k. Disconnect the pressure-and-return line from the

i. Ensure that the liquid cooler filter assembly is

station and connect them respectively to the tapwater

cleaned as directed in TM 9-1430-1533-12-1.

input and drain connection. Flush the coolant fluid tank

with water until no evidence of soap is visible.

CAUTION

l. Reconnect the return line of the coolant fluid

tank to the upper connection of reservoir No.

Collect any coolant that drains from

(Versene-Acid) solution and the lower connection of

coolant line fittings as soon as

reservoir No. 1 to the pump (figure 1). Start the auxiliary

pump and let it run for 60 minutes.

possible

after

disconnecting.

m. Stop the pump and press the air relief valve

Dispose of the coolant in accordance

button to empty the tank (fig. 1).

with local safety regulations.

n. Flush the tank with water. Disconnect the

pressure and return line from the station and connect

7. Coolant Fluid Tank (figure 4).

them respectively to the tapwater input connection and

a. Remove the heater elements from the tank and

drain. Flush the coolant fluid tank with water until no

flush the tank and elements (1, 2, figure 4) with tapwater.

evidence of Versene-Acid solution is visible.

Manually clean heater elements and coolant tank with

o. Remove all plugs and connections and install the

soap solution and nylon brush. Remount the heater

pressure relief valve (fig. 1). Reinstall the reservoir tank.

elements.

b. Remove the tank pressure relief valve and plug

8. Liquid Coolant Tank Unit (Figure 4).

the opening.

c. Plug the glycol pump connection and the

NOTE

remaining opening (figure 4, upper left side of the tank).

d. Mount the male-adapter tightly to the glycol inlet-

Steps a and b below can be

port.

performed during the Versene-Acid

e. Install the #10 filter into the filter housing (figure

5).

cleaning cycle of the coolant fluid

f. Connect the pump-pressure line to the lower

tank.

(pressure) connection of filter housing (figure 6).

g. Connect the return line of the coolant fluid tank

a. Remove the thermostat from the heat exchanger

to the upper (PRESS) connection of reservoir No. 2

and replace it with the applicable dummy (figure 9). This

(cleaning station, (figure 6).

simulates an extended thermostat.

* It is not necessary to perform the steps when purging the HIPIR for the first time.