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51 31... Removing Windows With An Oscillating Knife: Notes

WARNING: Follow safety instructions  . See 51 00... SAFETY INSTRUCTIONS FOR WORKING ON CARS WITH AIRBAG SYSTEMS  or 72 SAFETY PRECAUTIONS AND GENERAL INFORMATION for working on vehicles with airbag systems (risk of injury).
IMPORTANT: Handle sharp-edged tools with care (risk of damage to the head airbag and the window glass).
IMPORTANT: Follow the vehicle-specific repair instructions!
Always wear safety goggles and protective gloves for your own safety.
Cover the working area (side walls, roof-mounted aerial and if necessary interior equipment) with protective covers.
Tape off body with fabric adhesive tape (e.g. Tesa) in areas where the oscillating knife could damage the window glass or the paint.

Use suction cups 51 3 010 to lift out the window glass.

Always keep both suction cups dry and clean to ensure their optimum adhesion on the windscreen.

Secure window glass against falling out.

Fig 1: Lifting Out Window Glass Using Suction Cups (51 3 010)
G09850985Courtesy of BMW OF NORTH AMERICA, INC.

Depending on the area of application, knife 1 or 2 is used.

  1. Straight knife with adjustable thrust roller
  2. U-shaped knife

Dimension (X) on the knife (1) can be adjusted individually, see vehicle-specific repair instructions.

NOTE: Sharpen knife blade before every use on a running machine with a grinding stone (even with new knife blade).
Fig 2: Straight Knife With Adjustable Thrust Roller And U-Shaped Knife
G09850986Courtesy of BMW OF NORTH AMERICA, INC.