Operation & Maintenance of Ordnance in Cold Weather FM 9 FM OPERATIONS AND MAINTENANCE OF ORDNANCE MATERIEL IN COLD WEATHER. CLICK HERE TO DOWNLOAD FROM USAPA. Recently. Technical Manual TM (FM ) Operations and Maintenance of Ordnance Materiel in Cold Weather July [United States Government US Army].
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The auxiliary power fmm receptacle is an electrical outlet located at a readily accessible place on the vehicle. F for iced bleeder and selector valves, controls and linkage, and winch cable sheaves. Since most US units are stationed in temperate or tropical climates, soldiers generally lack adequate training or experience in cold weather operations and maintenance. Ammunition Grenades Mines Demolitions. For this to happen, the fuel-burning heater is continuously operated during the standby period.
Continuous operation maintains engine and battery electrolyte temperatures at levels that provide adequate cranking and battery recharging potential. When performing maintenance under arctic winter conditions, a box or pan should be used to hold small parts. Motorized units are restricted almost exclusively to roads. Units operating in a cold environment can expect a dramatic increase in petroleum, oils, and lubricants POL and fuel requirements due to movement difficulty, extended idling, and heating requirements.
Daylight can be scarce in cold climates. Recharge batteries if the specific gravity is less that tm. Impact on Military Forces Operational Effects.
Planners should consider the following:. In cold weather, special care should be taken in adjusting -9207 of this type, especially when adjusting bearing clearances. During prolonged periods of extreme cold weather, it may be necessary to take oil samples more frequently for equipment registered in the Army Oil Analysis Program AOAP. However, soldiers and their leaders must understand the effects of cold weather and adapt operations and maintenance to overcome environmental conditions.
Generally, tires should be inflated 10 PSI over the normal pressure for winter operations.
It then quickly loses its elasticity and becomes brittle. This equipment is issued in specific kits.
For small equipment, alkaline batteries are far superior to carbon batteries. Power requirements for starting an engine increase when the battery is least capable of delivering power. An added supply of battery chargers must be available to meet the heavy requirements for battery maintenance in sub-zero temperatures.
The time from initiating quick heat to achieving reliable starting temperatures can vary from a few minutes to one hour. There is an increased need for ammunition in cold weather.
Climatic Conditions Cm Difficulties. Its primary purpose is to familiarize operators and crews with the special procedures and techniques for working in sub-zero temperatures.
Operation & Maintenance of Ordnance in Cold Weather FM 9 207
Trailers and towed artillery pieces further reduce mobility. Leaders must incorporate all available HN support into their planning to reduce the impact of cold weather on logistics operations.
Unless otherwise stated, whenever the masculine gender is used, both men and women are included. Exercise care when towing cold-soaked vehicles. This accelerates heater failure by carbonizing the wick, igniter, burner, related burner components, or heat exchanger.
Quick heat is a technique that allows quick warmup and reliable starting when vehicle temperatures drop as low as the existing ambient temperature. Units must identify US and HN requirements in advance.
FM TABLE OF CONTENTS
The materials normally required to prepare equipment for operation in cold weather are listed in Appendix B. Mf personnel should identify specific environmental restrictions pertinent to cold weather operations i. Complete winterization, f maintenance, and well-trained crews are the keys to reducing the adverse effects of cold weather. Severe cold gm affects the capability of a unit to accomplish its mission.
Hydraulic fluids specified for hydraulic systems, recoil mechanisms, and equilibrates are listed in Appendix A. In the absence of buildings or maintenance tents, tarpaulins may be used to create overhead shelter and windbreaks. Table shows freezing points of batteries at various specific gravities. Every precaution must be taken to maintain soldier safety and ensure equipment is functioning properly. See Figure for sample auxiliary power receptacles.
Without the use of heaters, the increase in maintenance man-hours is from 25 percent to percent above normal. High engine speeds are likely to damage the winch mechanism. Batteries should be filled with 1. Neoprene jackets on cables become brittle and break readily at low temperatures.
Maintenance of many components requires careful and precise servicing. Fuel burning heaters are generally unreliable because of US Army equipment is among the best in the world for use in cold climates. Deployment of tactical vehicles from a hot to a cold region requires a change in electrolyte for maximum battery tm. If capacity of the winch is specified as 5, pounds on “Winch Caution Plate,” lower the rated capacity for cold weather operations by 25 percent, making capacity 3, pounds.
Listed below are several requirements that affect maintenance directly and require planning and preparation before a cold weather operation:. Added time is needed to complete tasks. The lithium battery has unique characteristics that provide improved operational capabilities and extended battery life.