TM 9-2350-287-20-12-19. TROUBLESHOOTING CHART (continued).g GAGES (continued).(10) SPEEDOMETER FAILS TO OPERATE(continued).E. 1. Disconnect speedometer drive shaft frombulkhead coupling.2. Rotate one end of speedometer driveshaft by hand.3. Observe other end for rotation.Does speedometer drive shaft rotate?Replace speedometer drive shaft (para20-2). Verify problem is solved.F. 1. Reconnect speedometer drive shaft tospeedometer and bulkhead coupling.2. Disconnect flexible drive shaft from bulk-head coupling.3. Rotate one end of flexible drive shaft byhand.4. Observe other end for rotation.Does flexible drive shaft rotate?Replace flexible drive shaft (para 20-2).Verify problem is solved.Replace bulkhead coupling (para 20-2).Verify problem is solved.END OF TASK2-133
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