TM 9-2320-209-34-2-2 d. Cleaning. There are no special cleaning procedures needed. Refer to cleaning procedures given in Part 1, para 1-3. NOTE Clean all parts before inspection and before assembly. Inspection and Repair. 1. Measure 2. Measure 3. Measure 4. Measure NOTE Readings must be within limits given in table 17-5. If readings are not within given limits, throw away part and get a new one. fit of adjusting bearing (1) length of adjusting bearing fit of sleeve bearing (3) on of worm gear shaft (2). (1). shaft (2). thickness of thrust washer (4). GO TO FRAME 2 Table 17-5. Leveling Worm gear Assemblies Wear Limits Index Number 1 and 2 1 3 and 2 4 Item /Point of Measurement Fit of bearing on shaft Adjusting bearing length Fit of sleeve bearing on shaft Thrust washer thickness Size and Fit of New Parts Wear Limit (inches) (inches) 0.004 to 0.007 None 2.875 2.845 0.004 to 0.007 None 0.406 0.374 17-617