ARMY TM 10-4610-309-14
MARINE CORPS TM10802A-14/1
TACTICAL WATER PURIFICATION SYSTEM (TWPS)
UNIT MAINTENANCE PROCEDURES
PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS)
INTRODUCTION
INTRODUCTION
Preventive Maintenance Checks and Services (PMCS) provide scheduled procedures to maintain the
TWPS at a specified level of performance by providing systematic inspection, detection, servicing,
condition monitoring, and/or replacement to prevent impending failures. A Unit level PMCS schedule is
established for maintenance to perform PMCS at the periodic intervals of operation called out in Table 1.
PMCS TABLE FORMAT
Preventive Maintenance Checks and Services (PMCS) tables list inspection and care requirements to
keep the TWPS in good operating condition. The following describes the purpose of each column in the
PMCS Table.
1. ITEM NO: Each maintenance check is identified by a separate item number. The item column
will be used as a source of item numbers for the "TM Number" on DA Form 2404, Equipment
Inspection and Maintenance Worksheet, in recording results of PMCS.
2. INTERVAL: This column indicates when to perform the service check or maintenance.
Periodic (see procedure for prescribed hourly intervals, quarterly, semi-annually)
3. ITEM TO BE CHECKED OR SERVICED: this column identifies the component, assembly, or
system to be checked or serviced.
4. PROCEDURE: This column identifies what check or inspection task to perform and what action
to take if corrections need to be made. Appropriate work packages are also referenced here.
5. EQUIPMENT NOT READY IF: This column indicates equipment conditions that make the
equipment not capable of performing its assigned mission.
GENERAL INSPECTION AND MAINTENANCE
The following general inspection and maintenance procedures can be performed at any time. It is a good
practice to perform these general procedures regularly to ensure that the TWPS remains in good
operating condition.
1. Keep the TWPS clean. Dirt, grease, oil, and debris get in the way and may cover up serious
problems.
2. Rust and Corrosion. Check the TWPS body and frame for rust and corrosion. If any bare metal
or corrosion exists, clean and apply a thin coat of oil, report to supervisor, or prepare an SF 368,
Products Quality Deficiency Report. Using key words such as "corrosion", "rust", "deterioration",
or "cracking" will ensure that the information is identified as a Corrosion Prevention and Control
(CPC) problem.
3. Bolts, Nuts, Screws. Check for obvious looseness, missing, bent or broken condition. Correct or
report to supervisor.
4. Welds. Look for loose or chipped paint, rust, or gaps where parts are welded together. If a bad
weld is located, report it to the supervisor.
5. Electrical Wires and Connections. Look for cracked, frayed, or broken insulation, bare wires and
loose or broken connections. Correct or report to supervisor.
0046 00-1
