Installing Repair Threaded Bush

→ Always secure the rear axle using the → HEXAGON-HEAD BOLT N.909.763.02 following repairs to the chassis bush.

→ Always replace fastening screws.

Fig 1: Identifying Front And Rear Repair Threaded Bush

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Fig 2: Identifying Threaded Bush

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Information 

• The repair bush must be installed recessed. To mill the required shoulder, the tool with the designation Spot facer for Time-Sert thread repair set NR.122-2 must be used. The tool provided with the complete set supplied must not be used in this case! 

1. Drill out thread.
   1. 1.1. Drill out the old thread with a drill to the root of the thread.
2. Mill shoulder.
   1. 2.1. Mill out drill hole with spot facer -C-  to dimension -X-  . → Test and adjustment value: 10 mm  Milling must only be performed using tool Spot facer for Time-Sert thread repair set Nr.122-2  .

      For milling, use an electronically controlled power drill set to a speed of approx. 250 rpm.

      Fig 3: Identifying Drill Thread

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3. Cut thread.
   1. 3.1. Cut thread using a cutting tool -D-  up to dimension -Y-  in the chassis bushing. → Test and adjustment value: 40 mm  Clean thread on the chassis bushing (blow it out).
      Fig 4: Identifying Cut Thread Dimension

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4. Position threaded bush on screw-in tool.
   1. 4.1. Clean thread on bush and on screw-in tool.
   2. 4.2. Oil the screw-in tool -E-  .
      Fig 5: Identifying Threaded Bush Cutter Dimension

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   3. 4.3. Screw the threaded bush -A-  onto the screw-in tool -E-  by hand.
      Fig 6: Identifying Threaded Bush

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5. Screw in threaded bush.
   1. 5.1. Fully screw in the threaded bush using the screw-in tool -E-  .
      Fig 7: Identifying Screw Tool

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      Information 

      • While pressing in the base thread, a noticeably larger amount of force on the screw-in tool is required to form the internal thread. Pressing is finished when the screw-in tool can be turned further more easily. 
6. Press threaded bush.
   1. 6.1. Form and press the threaded bush by turning further with the screw-in tool -E-  in the base thread.
      Fig 8: Identifying Screw Tool

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7. Unscrew the screw-in tool -E-  from the threaded bush.
   Fig 9: Identifying Screw Tool

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