TM 10-5430-240-13&P 0015 00 0015 00-3/4 blank CAUTIONS Equipment operation is allowed with a minor leak, (Class I or II).  When operating with Class I or II leaks, continue to check visually and at regular intervals.  Class III and IV leaks should be repaired as soon as the equipment can be taken out of service. Stop operation immediately if a deficiency is noticed which would damage the equipment if operations continued. NOTE Within the designated interval, these checks are to be performed in the order listed. Table 1. Unit Preventive Maintenance Checks and Services for 3,000 and                                      5,000 Gallon Semi-Trailer Mounted Collapsible Water Tanks. END OF WORK PACKAGE ITEM NO. INTERVAL MAN- HOUR ITEM TO BE CHECKED OR SERVICED PROCEDURE EQUIPMENT NOT READY/ AVAILABLE IF: 1 Quarterly Water Tank/Envelope Inspect for cuts, punctures and leaks. Check for loose or missing bolts where fittings connect to tank. Tank envelope is cut, punctured or leaks. Fitting bolts loose or missing.   2 Quarterly Ground Cloth Inspect for punctures or tears. Ground cloth is damaged. 3 Quarterly Drain Assembly/Hose Attachments Inspect for missing gaskets or damaged coupling arms. Check for leaks. Gaskets missing or damaged coupling arms. Class III leaks present. 4 Quarterly Filler/Discharge Couplings and Hose Attachments Inspect for proper connection, leakage, and loose or missing gaskets. Couplings are damaged or loose. Hose fittings straining fabric. Class III leaks present. 5 Quarterly Gate Valve Check for proper operation and/or leakage. Gate valve will not open/close. Class III leaks present. 6 Quarterly Repair Kit Check for missing components. Repair items are missing.