ORGANIZATIONAL MAINTENANCE INSTRUCTIONS
Section I. GENERAL
4-1. Maintenance Concept
a. The MWS requires no operator/crew maintenance.
b. The MWS requires a minimum of organizational maintenance.
c. Organizational maintenance of the MWS is limited to periodic external visual inspection of the SPU enclosure,
the conduit connection to the J-SIIDS Control Unit, the loop sensor wire, and the EOL Module.
d. The MWS does not require lubrication.
e. The MWS does not require cleaning other than that associated with normal housekeeping of electronics
equipment and military arms rooms.
4-2. Tools and Equipment
In accordance with the foregoing maintenance concept for the MWS, no tools, or equipment are required for
Section II. PREVENTIVE MAINTENANCE CHECKS AND SERVICES
To ensure that the MWS is always ready for operation, it must be inspected periodically so that defects may be
discovered and corrected before they result in failure. The necessary inspections to be preformed are listed in table 4-1.
Record all deficiencies noted and notify direct support (intermediate) maintenance of corrective action needed.
4-4 BATTERY REPLACEMENT
The batteries in the SPU have a life of approximately 36 months Organizational maintenance should remind direct
support (intermediate) maintenance of pending battery expiration dates
Table 4-1. Preventive Maintenance Checks and Services
Organizational maintenance category
Items to be Inspected
Check: security of wall mounting, and cover screw tightness; integrity of electrical conduit
and connector; security of loop sensor wire input connection; and for any sign of tampering.
Check: security of mounting on racks; connections to EOL Module and to SPU; and for any
damage to insulation, which would cause a short or open circuit.
Check: security of mounting on rack, and for any signs of tampering.