TM 55-1930-209-14&P-19 Table 11-3.  Preventive Maintenance Checks and Services for Equipment Monitoring System B - Before D - Daily Q -  Quarterly D - During W - Weekly S -  Semiannually A - After M - Monthly A -  Annually INTERVAL ITEM PROCEDURES EQUIPMENT ITEM TO BE CHECK FOR AND HAVE IS NOT READY/ NO. INSPECTED REPAIRED OR ADJUSTED AVAILABLE IF B   D   A   D  W  M   Q   S   A AS NECESSARY EQUIPMENT MONITORING SYSTEM (EMS) WARNING Be sure that electrical power Is OFF before performing any maintenance on electrical systems.  Redtag appropriate switches and circuit breakers with: "WARNING - DO NOT ACTIVATE.  REPAIRS BEING MADE." Observe all safety precautions listed at the beginning of this manual. 1 All Components a.  Wipe clean or vacuum major EMS com- ponents and check for loose fitting wires. Use insulated tools. b.  Allow EMS 5 to 10 minutes warmup before operation. c.  Check for damage or corrosion. Repair touchup paint in accordance with TB 43-0144 as necessary.  Do not paint threads or labels. d.  Check all fasteners, mounting hardware, and cable attachments for loose or miss- ing components.  Tighten or replace as necessary using insulated tools. 2 Batteries WARNING Fumes from batteries may be flammable and explosive.  Do NOT smoke or have open flame when checking or worldng on battery bank.  Battery electrolyte presents potential health hazards.  Contact with eyes and skin should be avoided.  SafUty glasses, gloves, and rubber aprons must be worn when han- dllng this chemical.  Electrolyte contains sul- furic acid which can cause severe bums and Is highly toxic to skin, eyes, and respiratory system. 11-5