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Separate bottom firewall section - AR62.25-P-1100-01P

Fig 1: Identifying Spot Weld Milling Cutter (201 589 00 51 00)
G04735157
COMMERCIALLY AVAILABLE TOOLS

Number Designation
WH58.30-Z-1002-01A Ball cutter, dia. 12 mm
WH58.30-Z-1001-03A Round wire brush, braided, dia. 70 mm
WH58.30-Z-1024-04A Abrasive disk, dia. 115 mm, 80 m/s (max. 13,250 rpm)
WORKSHOP EQUIPMENT

WE58.40-Z-1001-03A Drill (electric/pneumatic)
WE58.40-Z-1002-03A Straight grinder (electric/pneumatic)
WE58.40-Z-1003-03A Angle grinder (electric/pneumatic)
WE58.40-Z-1004-03A Body saw (electric/pneumatic)
WE58.40-Z-1005-03A Wet/dry vacuum cleaner
  1. Expose spot welds (area A).
  2. Cut out spot welds with SPECIAL TOOL spot weld milling cutter (area A).

    Shown on model 203.0 

    Fig 2: Identifying Bottom Firewall Section Spot Welds Cutting Area
    G04735158
    Fig 3: Identifying Bottom Firewall Section Spot Welds Exposing Area
    G04735159

    3. Shown on model 203.0 

  3. Expose spot welds (area B).
  4. Cut out spot welds with SPECIAL TOOL spot weld milling cutter (area B).
  5. Expose welding spots (areas C and D).
  6. Drill spot welds with 7 mm dia. spiral bit (areas C and D).
  7. Expose spot welds (area D1 ).
  8. Cut out spot welds with SPECIAL TOOL spot weld milling cutter (area D1 ).

    Shown on model 203.0 

    Fig 4: Identifying Bottom Firewall Section Spot Welds Cutting Area
    G04735160
  9. Mark separation point (area E).
  10. Cut separation point with body saw (area E).
  11. Remove section from bottom of firewall.
  12. Remove section from top of firewall.
  13. Remove remaining flange from firewall.

    Shown on model 203.0 

    Fig 5: Identifying Bottom Firewall Section Separating Point & Cutting Area
    G04735161
  14. Sand down to bare metal connection surfaces in the shaded areas on both sides.
  15. Remove grinding and drilling chips using wet/dry vacuum cleaner.

    Shown on model 203.0 

    Fig 6: Identifying Bottom Firewall Section Sanding Area (1 Of 3)
    G04735162
  16. Sand down to bare metal connection surfaces in the shaded areas on both sides.
  17. Remove grinding and drilling chips using wet/dry vacuum cleaner.

    NOTES Move drilling machine only in direction of arrow, to prevent wire brush from catching in sheet metal flange!

    Shown on model 203.0 

    Fig 7: Identifying Bottom Firewall Section Sanding Area (2 Of 3)
    G04735163
  18. Sand down to bare metal connection surfaces in the shaded areas on both sides.
  19. Remove grinding and drilling chips using wet/dry vacuum cleaner.

    Shown on model 203.0 

    Fig 8: Identifying Bottom Firewall Section Sanding Area (3 Of 3)
    G04735164
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