Installation Guide for Thermomix Gears

Installation Guide for Thermomix Gears

Welcome to our official installation guide. Follow these steps to ensure proper installation and extend the lifespan of your Thermomix gears.

1. Cleaning and Preparation

  • Before installing the new gear, disassemble and thoroughly clean the worm screw and the entire casing.
  • Ensure no traces of the old grease are left in the mechanism, as it may contain debris from worn gears.
  • Use hot water and a degreaser, then let everything dry completely.

2. Gear Installation

  • Place the new gear onto the motor shaft, adding one drop of Loctite to secure the gear to the shaft. This step is mandatory and corresponds to the original factory assembly.

    Important:
    The gear must take the imprint of the shaft during installation. No grease must be applied at this stage. If grease is present, the imprint will not form correctly, which may cause the gear to crack or split.

    Maintain an exact clearance of 0.3 mm between the base of the gear and the motor housing. Use a business card or a thin shim to set this gap accurately.

    Why?
    The gear teeth are angled. If the clearance is not respected, the teeth will not align correctly, leading to excessive friction and premature wear.

3. Lubrication

  • Once the gear is correctly mounted on the shaft and the assembly is adjusted, apply a thin layer of PTFE-based grease only to the gear teeth.
  • Warning: Using non-PTFE grease or failing to use any grease at all may cause rapid wear or malfunction.
  • Grease should never be applied before mounting the gear on the shaft.

4. Role of the Gear

  • This gear is designed to act as a mechanical fuse, protecting the motor from excessive strain.
  • If the gear breaks, it indicates abnormal resistance in the mechanism, often caused by improper installation or excessive force.
  • Premature wear or breakage is not due to a manufacturing defect but rather a problem with adjustment or lubrication.

Key Reminders:

  • Mandatory 0.3 mm gap: Ensures perfect alignment of the gears and prevents excessive friction.
  • PTFE-based grease required: Reduces friction and extends the lifespan of the gears.
  • Thorough cleaning: Remove all residue from old grease or worn gears.
  • No grease on the shaft during installation: Ensures the gear forms a proper imprint for secure and precise mounting.
  • Gear as a fuse: If it breaks, it protects your motor from excessive strain. Repeated breakage indicates a problem with the installation or overall mechanism function.

To purchase a compatible gear kit, visit our store:

Buy the Gear Kit