For the installation of the gearbox the following guidelines should be observed:

- The gearbox must be security bolted to a rigid base to avoid vibrations.

- If shocks, extended overloads or jammings are expected, hydraulic couplings, torque limiters, clutches etc. should be fitted.

- If the gearbox is to be spray- painted use masking tape to shield the oil seals to prevent damages.

- Any gears , sprockets or pulleys being fitted to the input or output shafts must have bores machined to ISO H7 tolerance.

- In order to avoid the oxidation and the possible seizing of the above the oxidation and the possible seizing of the above parts , clean both contact surfaces before assembly and apply water repellant grease or similar material .

- Bore of hollow shaft of gearboxes have tolerance H7, all shafts to be fitted are usually machined to h6 . If required for the application an interference fit(H7-J6) can be used.

- Before starting the machine make sure the lubricant viscosity is correct for the kind of load. When the gearboxes are lubricated with synthetic grease no further maintenance is required. when the gearboxes are lubricated with mineral oil the following procedure is recommended:

  1. After the first 500-1000 hours running , change the oil, preferably washing out the interior of the gearbox.
  2. At regular intervals check the lubricant level and change the oil after 4000 working hours.
  3. If the gearbox is lubricated with synthetic oil you have to change the oil after 8000 working hours . when the gearbox is standing for a long time in a very damp environment it is better to fill it completely with oil; naturally the lubricant level must be restored when the gearbox is put back into operation.


Usually for all type of our gearboxes and particularly for VF,RVF,VF.../VF... series we advise to increase gradually the transmitted power, or to put a limit (50 - 70% of the max. power) for the first running hours.