TM-9-2350-277-20-2 Unit Maintenance Manual Volume 2 M113A3 M577A3 M1064A3 M1068A3 M58 Download
Page 132 of 790
TM 9-2350-277-20-2 PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS), INCLUDING LUBRICATION INSTRUCTIONS — Continued 0155 00 ITEM NO. INTERVAL MAN- HOUR ITEM TO BE CHECKED OR SERVICED C R E W M E M B E R PROCEDURE EQUIPMENT NOT READY/ AVAILABLE IF: 70 Semi- Annual Fixed Fire Extinguisher C A U T I O N Fire extinguisher control valve sealed with steel wire will not work. Make sure seal wire is made out of .020 light copper. a. Remove and weigh fixed fire extinguisher cylinder (WP 0898 00). Extinguisher is missing or seal/lockwire missing or broken, bottles are overdue for hydrostatic test. Lock wire is not .020 light copper. b. Recharge or exchange fire extinguisher if weight loss is more than 10 percent of charged weight stamped on bottle. c. Inspect fire extinguisher cylinder data plate to ensure that a hydrostatic test has been performed within the past 5 years. Faulty extinguishers, or those beyond the test time limit (5 years), shall be declared unserviceable and replaced. C A U T I O N Fire extinguisher control valve sealed with steel wire WILL NOT work. Use .020 thin copper wire. d. Before reconnecting cylinder, operate discharge handles to be sure cables and controls work properly. e. Install cylinder and replace copper seal wires (WP 0898 00). f. Replace discharge tubes that are crimped, plugged, or cracked (WP 0899 00). 0155 00-112 Change 3