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].
|Country:||Antigua & Barbuda|
|Published (Last):||20 October 2010|
|PDF File Size:||16.1 Mb|
|ePub File Size:||6.64 Mb|
|Price:||Free* [*Free Regsitration Required]|
This accelerates heater failure by carbonizing the wick, igniter, burner, related burner components, or heat exchanger. The standby system includes an engine coolant heater, hoses, control valves, fuel pump, battery heat exchanger commonly known as a battery padand miscellaneous hardware.
Daylight can be scarce in cold climates. Flank units must work harder to keep up with the main body and require frequent rotation. Motorized units are restricted almost exclusively to roads. Antifreeze materials specified for protection of liquid-cooling systems are listed in Appendix A.
When using the winch, operate the vehicle engine at a reasonable speed IAW the operator’s manual. Metals become brittle in severe cold temperatures; thus, parts cannot withstand the shock loads that they sustain at higher temperatures. 9207 Considerations Power Takeoff Assemblies.
FM TABLE OF CONTENTS
Even shop maintenance cannot be completed at normal speed. Logistics support can be decisive to mission accomplishment during cold weather operations. At severe cold temperatures, sidewalls become brittle and crack. The heater can be used in 12 various exchangers, making it a versatile and useful tool.
Neoprene jackets on cables become brittle and break readily at low temperatures. Illustrations of such stress are at Figure Besides natural rubber, there are hundreds of rubber substitutes.
In cold weather, special care should be taken in adjusting parts of this type, especially fn adjusting bearing clearances. Climatic Conditions Functioning Difficulties. Units must identify US and HN requirements in advance. These fuels are listed in Appendix A. US Army equipment is among the best in the world for use in cold climates.
Mechanics must allow equipment to thaw out vm warm up before making repairs. Plastics expand and contract much more than metal or glass, causing them to be brittle in cold weather.
An operator can externally heat gear boxes, drive trains, transmissions, and oil pans on vehicles prior to operations. Maintenance, supply, and engineer units may require augmentation. The proper antifreeze materials are critical for cold operations.
The auxiliary power slave receptacle is an electrical fmm located at a readily accessible place on the vehicle. A potential increase in medical problems i.
The parachute should be deployed over the vehicle, securely staked down at the bottom, and then inflated by the air from a portable duct heater. When buildings are not available, maintenance tents are a temporary expedient. 9-270 and clean gear housing, and fill to level with recommended seasonal gear oil GO75W.
Arctic fuels for gasoline or diesel engines are selected to obtain the proper atomization necessary for a combustible fuel-air mixture. Under such conditions, personnel are subject to decreased efficiency and cold casualties, equipment is prone to breakdowns, supply problems are increased, and operations are restricted and complicated by the environment. A fully charged battery does not freeze in extreme cold climates, but a battery with specific gravity 1. Tarps used to protect from cold and to catch dropped parts.
Maintenance of mechanical equipment is exceptionally difficult in the field during cold weather. These manuals all include a section subtitled Operations Under Unusual Conditions.
If the vehicle does not have a preheater, an insulated battery box can help maintain specific gravity at higher levels for longer periods. There is an increased need for ammunition in cold weather.
The standby heat concept does not allow vehicle components to fall below a certain minimum temperature. Also, this manual will assist unit commanders, supervisors motor sergeants, battalion motor officers [BMOs]and maintenance personnel in anticipating and planning for the onset of cold weather or an arctic deployment.
Hydraulic fluids must be able to work in cold conditions. Enter Your Email Address. If vehicles come into theater with temperate grade automatic transmission fluids and become cold-soaked when vehicle temperatures drop as low as the existing ambient temperaturesseals are likely to blow when transmissions are engaged. Without some type of permanent or temporary shelter, even routine maintenance can become extremely difficult.
Deployment of tactical vehicles from a hot to a cold region requires a change in electrolyte for maximum battery effectiveness.
It is essential to keep batteries fully charged. These characteristics especially affect bearings in. The preferred cold weather batteries are lithium-based, but precautions must be taken in their storage and disposal.
Units can also consult DLA’s publication see DLA publication in references for environmentally preferred antifreeze substitutes.
Operation & Maintenance of Ordnance in Cold Weather FM 9 207
gm Since most US units are stationed in temperate or tropical climates, soldiers generally lack adequate training or experience in cold weather operations and maintenance. Soldiers must check battery charges using hydrometers and testers. Just prior to vehicle operation, heat is applied to 99-207 engine, batteries, and components, raising their temperatures enough to ensure starting.
An added supply of battery chargers must be available to meet the heavy requirements for battery maintenance in sub-zero temperatures. It is intended to provide an overview of the special and unique difficulties encountered in cold weather operations. One of the greatest hindrances to successful military operations in a winter environment is the effect of cold on batteries.
Failure to follow this guidance can cause injury to personnel and damage to equipment, besides limiting mission accomplishment.