TM-9-2350-277-20-2 Unit Maintenance Manual Volume 2 M113A3 M577A3 M1064A3 M1068A3 M58 Download
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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: NOTE Remember that when the nylon coating on the spline drive ring teeth is new or in good condition, the clearance between the spline drive ring and the flywheel internal spline is only a few thousandths of an inch. 2) When the spline drive coupling is worn-out, you will be able to detect the individual movement between the spline drive ring studs and nuts and flywheels’s clearance holes. This movement is due to the actual wear of the spline teeth. The more wear, the more movement. i. If you should hear the metallic clanking sound, as mentioned in any one of the above inspection procedures, immediately notify your direct support maintenance or supervisor j. Using these three methods, you will easily be able to tell the difference between the muffled sound of a good spline drive coupling and the metallic clanking of a bad spline drive coupling. Detecting wear of the kind in its early stages will reduce down time and keep your M113A3 ready for action. 0155 00-160 Change 3