CHAPTER 3 OPERATOR/ORGANIZATIONAL MAINTENANCE INSTRUCTIONS

TM 5-6640-213-14

OPERATOR/ORGANIZATIONAL MAINTENANCE INSTRUCTIONS

Section I.

OPERATOR AND ORGANIZATIONAL MAINTENANCE

3-1. GENERAL. Maintain the outside of the shelter in accordance

with TM 11-5410-213-14P. Maintain the air conditioner/heater in

accordance with TM 5-4120-274-15. Check the level indicators daily

to maintain the shelter in proper position. Clean the stainless

steel surface of drainboards, constant temperature baths, desiccating

cabinet, and similar equipment by washing with a water-damp cloth and

polishing with a dry cloth. Refer to table 3-1 for preventive

maintenance checks and services.

3-2. ELECTRICAL SYSTEM. A troubleshooting chart for the electrical

system is listed in table 3-2. Refer to figure 1-7 when necessary.

3-3. WATER SYSTEM.

a. Water Pump.

The water pump needs no lubrication.

b. Water Tank. To clean the tank, remove the screws from the

lid, remove the drain plug and allow the water remaining in the tank

to drain into a suitable container. Wipe any dirt or silt from the

tank with a clean cloth, and flush with clean water.

Before-Operation Service. Check piping for leaks or loose-

ness. Make sure that the outlet valves are closed and that the tank

contains sufficient water. Check the electrical connection to the

pump motor.

d. During-Operation Service. Inspect the pump and motor as-

sembly, being alert for unusual noises or smells that could indicate

malfunction. Check the pump for leaks at the shaft. If the packing

nut must be tightened, tighten it while the motor is operating and

tighten it just enough to stop the leak; overtightening the nut could

cause motor damage. Check the water piping for leaks and make sure

that the faucet delivers full flow when open and does not leak when

closed.

e. After-Operation Service. Refill the tank with potable water.

Inspect motor, tank, pressure switch and piping for leaks.

Make necessary repairs.

f. Troubleshooting. A troubleshooting chart for the water

system is listed in table 3-3.

AIR SYSTEM.

3-4.

a. General. Maintenance of the air system requires a periodic

inspection of piping, fittings and components for leaks and looseness

of component mounting. Make an inspection and make needed repairs

prior to starting a test requiring this system.