OPERATOR/CREW PREVENTIVE MAINTENANCE
CHECKS AND SERVICES (PMCS)
To insure that the M871A3 Semitrailer is ready for operation at all times, it must be inspected on a
regular basis so that defects may be found before they result in serious damage, equipment failure, or
injury to personnel. This section contains systematic instructions on inspections, adjustments, and
corrections to be performed by the operator/crew.
While performing PMCS, read and follow all safety instructions in the warning summary at the front of
this manual. Keep in mind all warnings and cautions throughout PMCS.
3-2. SERVICE INTERVALS
Perform PMCS, found in Table 3-1, at the following intervals:
Perform "Before" PMCS just before operating the semitrailer.
Perform "During" PMCS while operating the semitrailer.
Perform "After" PMCS immediately after operating the semitrailer.
Perform "Weekly" PMCS procedures must be done once each week on semitrailer.
Perform "Monthly" PMCS procedures must be done once each month on semitrailer.
3-3. REPORTING REPAIRS
All defects that the operator cannot fix must be reported on a DA Form 2404, Equipment Inspection
and Maintenance Worksheet, or an electronic DA Form 5988E, if available, immediately after
completing PMCS. If a serious problem is found, immediately report it to your supervisor. Remember,
record any corrective action taken.
3-4. GENERAL PMCS PROCEDURES
Solvents can burn easily, can give off harmful vapors, and are harmful to
skin and clothing. To avoid injury or death, keep away from open fire and
use in a well-ventilated area. If solvent gets on skin or clothing, wash
immediately with soap and water.
Do not use high-pressure water or steam to clean semitrailer. Use only low -
pressure water a d bristled brushes. Be especially careful when cleaning
electrical system components to include lighting. Damage or impaired
operation will result if this caution is not observed.
Keep equipment clean. Dirt, oil, and debris may cover up a serious problem. Clean as you work and as
needed. Use approved solvent on all metal surfaces. Use soap and water on rubber, plastic, and
painted surfaces. Spot paint as required to prevent corrosion.