TM 10-3510-222-10Section IV. OPERATION UNDER UNUSUAL CONDITIONS2-12. OPERATION IN COLD.WARNINGDo not touch cold metal parts with bare hands. Cold metal parts can cause frostbite andinjury to personnel.CAUTIONSubzero temperatures cause rubber and metal parts to become brittle and prone to breakage.Use proper lubrication for extreme cold operations.a.OperatingWhenLaundryUnitisSet-up.The Laundry Unit must not be operated under 32°F (0°C). Duringoperation in cold weather, steps must be taken to protect equipment from freezing. Operate Laundry Unit insidetent or other suitable enclosure. If Laundry Unit is operational, and it will freeze at night when not operating, dothe following substeps:(1)Water Pump. Do substeps below:(a)Set toggle switch to OFF.(b)Remove water suction strainer from water source.(c)Disconnect and drain nonmetallic hose from quick coupling half on inlet side of water pump(d)Disconnect and drain nonmetallic hose from quick coupling half on outlet side of water pump andinlet quick coupling half side of water heater.(e)Open drain cock and drain water. Close drain cock when pump has drained.(2)Water Heater. Do substeps below:(a)Set subcircuit breaker switch (water heater switch) to OFF.(b)Close fuel globe valve. Clockwise rotation closes valve.WARNINGThis equipment can produce scalding water. To avoid injury, be careful when draining water .(c)Connect hose to drain valve on bottom of water heater.(d)Open drain valve on bottom of water heater.(e)Open draincock 50 ips on top of water heater.(f)After water has stopped draining from hose, close drain.2-87
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