TM-9-2520-238-34 Direct Support for M113 Family Major Assemblies Download

TM 9-2520-238-34 INTRODUCTION TO HOW TO USE TROUBLESHOOTING—Continued 0004 00 Finding the Right Troubleshooting Procedure A component arrives at the shop. The DA form 2404 shows that the differential makes excessive noise or vibrates while moving. Therefore, you look up differential makes excessive noise or vibrates while moving will be listed in Malfunction/ Symptom Index, (WP 0005 00), in this chapter. TM 9-2520-238-34 MALFUNCTION/SYMPTOM INDEX WP 0005 00 COOLING SYSTEM TRANSFER GEARCASE FINAL DRIVE ASSEMBLIES REAR AXLE COOLING FAN RIGHT ANGLE DRIVE LEAKS OIL..........................................................................WP 0006 00 COOLING FAN RIGHT ANGLE DRIVE BINDS OR MAKES GRINDING NOISE...............................................................................................................................................WP 0007 00 TRANSFER GEARCASE LEAKS OIL...............................................................................................WP 0008 00 FINAL DRIVE BINDS OF MAKES GRINDING NOISE......................................................................WP 0011 00 FINAL DRIVE LEAKS OIL..................................................................................................................WP 0012 00 FINAL DRIVE HAS WATER INSIDE..................................................................................................WP 0013 00 DIFFERENTIAL MAKES EXCESSIVE NOISE OR VIBRATES WHILE TURNING...........................................................................................................................................WP 0009 00 DIFFERENTIAL MAKES EXCESSIVE NOISE OR VIBRATES WHILE MOVING............................................................................................................................................WP 0010 00 This is the procedure you want. TM 9-2520-238-34 DIFFERENTIAL MAKES EXCESSIVE NOISE OR VIBRATES WHILE MOVING 0010 00 INITIAL SETUP: Maintenance Level Direct/General Support Tools and Special Tools General mechanic’s tool kit (WP 0034 00, Item 37) Personnel Required Track Vehicle Repairer References See your-20 Equipment Condition Differential removed from carrier (See your -20) Disassemble for inspection per repair differential right angle gearbox (WP 0029 00) Repair output shaft assemblies (WP 0025 00) T TN NO NO NO NO YN 2YN 3YN 4YN NO Y 2Y 3Y 4Y YES YES YES YES YES 1. Inspect bevel gear backlash to see if it has been adjusted. 2. Has bevel gear backlash been adjusted? 1. Inspect shaft gear bearing to see if it has been adjusted. 2. Has shaft gear bearing been adjusted? 1. Inspect shaft gear bearings for damage. 2. Are shaft gear bearings undamaged? 1. Inspect bevel gear shaft bearings (WP 0029 00). 2. Are bevel gear teeth undamaged? 1. Inspect output shaft bearings. 2. Are output shaft bearings serviceable? 1. Adjust bevel gear backlash (WP 0029 00). 2. Verify no faults found. 1. Adjust shaft gear bearing (WP 0029 00). 2. Verify no faults found. 1. Replace damaged bevel gear shaft bearing (WP 0029 00). 2. Verify no faults found. 1. Replace damaged shaft gear bearings (WP 0029 00). 2. Verify no faults found. 1. Replace output shaft bearings (WP 0025 00). 2. Verify no faults found. 0010 00-1 0004 00-3