TM 9-2320-209-10-2 Table 1-4. Operator /Crew Preventive Maintenance Checks and Services for M50A1, M50A2, and M50A3 Water Tank Trucks - Cont NOTE: These checks are to be made in the order listed, within designated interval. B-Before operation A-After operation M-Monthly D-During operation W-Weekly Interval Item Item to be Inspected Equipment is No. Procedure: Check for and have repaired, filled, not ready/ B DA w M or adjusted as needed available if: 2 TANK BODY ● a. Check that tank body is not leaking. ● b. Check that the body mounting bolts Two or more are not broken or missing (locations mounting bolts illustrated below). broken or missing. Right-side tank body front (1), center (2), and rear (3) mounting bolts. 1-21