TM 10-6640-233-10 Section IV.  OPERATION UNDER UNUSUAL CONDITIONS ALPHABETICAL INDEX PARAGRAPH TITLE PARAGRAPH Emergency Stopping Procedure..........................................................................................................................2-13 Operation in Extreme Climates  ..........................................................................................................................2-12 2-12.  Operation in Extreme Climates.  The AOAP Mobile Laboratory is insulated and weatherproofed for operation in hot, cold, or moderate climates.  The shelter facility provides complete protection from the elements for personnel and equipment; however, under extreme conditions, the following precautions are necessary. a.  Cold Climates. (1)  Procedure for draining the water system prior to storage or shipment to a cold environment is as follows: (a)  Open all exterior water drain outlets. (b) Open tank drain valve in mechanical room and drain water tank. (c)  Open water system pet cocks on the curbside and roadside faucets. (d)  Allow water system to drain. (e)  Cut a piece of plastic tubing about 2 feet in length and of the proper width to fit on the faucet pet cocks. (f)  Connect one end of the tubing to the roadside water faucet across from the sink and the other end to the air outlet. (g)  Close all pet cocks. (h)  Start the air compressor. (i)  Open the water faucet pet cock with the tubing. (j)  Open the air outlet pet cock with the tubing and allow the air pressure to force any remaining water from the system. (k)  Turn compressor off when complete, close faucets, and remove tubing. (I)  Remove drain plug from front of the water pump, open connecting pipe valves, and allow water to drain into shallow pan. (m)  Replace drain plug when complete. (n)  Remove the filter elements from the primary and secondary water filters.  Replace filter covers and attach a note stating the elements have been removed for storage and should be replaced prior to start up procedures. (o)  Drain water from garden hoses prior to storage. (2)  Extreme cold causes cables and wires to become hard, brittle and difficult to handle.  Be careful when handling  the  cables  and  connecting  them  to  the  laboratory,  so  that  kinks  and  unnecessary  loops  will  not  result  in permanent  damage.    Make  sure  that  connectors  in  the  entrance  boxes  are  free  of  frost,  snow,  and  ice.    Replace connector covers on receptacles as soon as a cable is disconnected.  Never drag or place an open cable connector in the snow. b.  Hot Climates.  In hot, dry climates, connectors and receptacles are subject to damage from dust, sand and dirt. Replace connector covers on receptacles when they are not in use.  Never place an open cable connector on the ground. c. Warm, damp climates.  In warm, damp climates, the equipment is subject to damage from moisture and fungi. Wipe all moisture and fungi from the equipment with a lint-free cloth. 2-13.  Emergency Stopping Procedure.  To turn the equipment off in an emergency, set the MAIN circuit breaker to OFF. U.S.  GOVERNMENT PRINTING OFFICE: 1992 - 654-028/60099 Change 1    2-47/(2-48 blank)