TM-9-2520-238-34 Direct Support for M113 Family Major Assemblies Download
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TM 9-2520-238-34 REPAIR FINAL DRIVE ASSEMBLIES A AND B — Continued 0020 00 RUN-IN TEST NOTE Conduct run-in test in accordance with local operating procedures. 2. Mount final drive in same position as in the carrier (line connecting input and output shaft center lines at 15 to 25 degrees from vertical). 3. Install filler tube, liquid level gage rod, vent tube and elbow, and adapter as installed in carrier (see your -20). 4. Fill housing with oil between ADD and FULL marks on liquid level gage rod (about 3-1/2 quarts or 7 pints). 5. Operate final drive according to the following schedule, checking for undue noise level, local heating, leaks, and vibration at each phase: Table 1. RUN-IN TEST SCHEDULE Stage (rpm) Direction Stage Time (minutes) 900 to 1100 Forward 6 to 8 900 to 1100 Reverse 6 to 8 1900 to 2100 Forward 3 to 5 1900 to 2100 Reverse 3 to 5 2900 to 3100 Forward 1 to 3 2900 to 3100 Reverse 1 to 3 6. Drain oil into a suitable container. Leave residual oil for use as a preservative during shipping and storage. 7. Remove filler tube and vent components installed in Step 2 above (see your -20). 8. Cover filler tube vent and input shaft openings. 0020 00-13 Take care to prevent damage to machined surfaces, gears, bearings, and other components during maintenance activities. N O WARNING I T U A Lifting or moving objects in excess of 70 pounds could injure you. Make sure to get an assistant or use a lifting device to move heavy objects. C 1. Install sling and suitable lifting device to final drive 9. Remove sling and suitable lifting device from final drive