TM 10-4320-317-13
4-9. Preparation of TWDS for Shipment The TWDS is in a shippable form once the four equipment groups have been
disassembled and prepared for movement. Tricons are skidded and equipped with headers for using a forklift.
Section IV. UNIT PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS)
4-10. General. To ensure that the TWDS is ready for operation at all times, it must be inspected within designated
intervals so that defects may be discovered and corrected before they result in serious damage or failure. Table 4-6
contains a tabulated listing of Preventive Maintenance Checks and Services to be performed by unit maintenance
personnel. All deficiencies and shortcomings will be recorded as well as the corrective action taken on DA Form 2404 at
the earliest possible opportunity.
4-11. Explanation of Table Entries.
a. Item No. Column. Numbers in this column are for reference. When completing DA Form 2404 (Equipment
Inspection and Maintenance Worksheet), include the item number for the check/service indicating a fault. Item
numbers also appear in the order that you must do checks and services for the intervals listed.
b. Interval Column. This column tells you when you must do the procedure in the procedure column. BEFORE
procedures must be done before you operate or use the equipment for its intended mission. DURING procedures
must be done during the time you are operating or using the equipment for its intended mission. AFTER procedures
must be done immediately after you have operated the equipment.
c.
Location and Item to Check/Service Column. This column provides the location and the item to be checked or
serviced. The item location is underlined.
d. Procedure Column. This column gives the procedure you must do to check or service the item listed in the Check W
Service column to know if the equipment is ready or available for its intended mission or for operation. You must do
the procedure at the time stated in the interval column.
e. Not Fully Mission Capable If: Column. Information in this column tells you what faults will keep your equipment from
being capable of performing its primary mission. If you make check and service procedures that show faults listed in
this column, do not operate the equipment. Follow standard operating procedures for maintaining the equipment or
reporting equipment failure.
f.
Reporting and Correcting Deficiencies. If you equipment does not perform as required, refer to Section V under
Troubleshooting for possible problems. Report any malfunctions or failures on the proper DA Form 2404, or refer to
DA Pam 738-750.
Table 4-5. Unit Maintenance Preventive Maintenance Checks and Services
Item
Interval
Location
Procedure
Not Fully
No
Item to
Mission Capable If:
Check/Service
1
Annually
Butterfly Valves
Inspect and lubricate butterfly valve as per
4-8
