Zenit Group | 28 Mar 2022
- Fit the sensor rubber gasket in place and pre-fix the cable gland
- Fit the double sensor into the cable gland
- Warning: the first sensor must stick out by about 10 mm
- Tighten the cable gland
- Temporarily tape the sensor cable to the outside of the case
- Place the case on the base of the press
- Add 2 suitable supports to avoid crushing the sensor
- Position the stator on the case so that one of the grooves is aligned with the sensor cable
- Place the drivers on the stator
- Using a press, insert the stator in the case
- Remove the drivers
- Fit the supporting washer and the bearing
- Overturn the case and place it on the support using a hoist
- Fit the shaft into the motor
- Place the top bearing and its driver on the shaft
- Using a press, fit the bearings into the shaft
- Remove the driver
- Fit the O-ring into its seat
- Secure the bearing with the snap ring
- Grease the bushing O-ring
- Fit the bushing and place it in its seat with the driver
- Secure the bushing with the snap ring, making sure it is perfectly snug
- Wet the counterface with alcohol and fit it, using the driver
- Clean the counterface with a paper towel and lubricate the surface slightly
- Clean the mechanical seal with a paper towel and wet it with alcohol
- Place the mechanical seal in the shaft and fit it with the driver
- Fix the mechanical seal with the snap ring
- Fit the key into the seat in the drive shaft
- Place the sun gear in the planetary gear set and check that it turns freely
- Engage the sun gear
- Pour a few drops of lubricating oil onto the paper gasket and fit it into the seat. Use a little grease to hold it in place.
- Place the reduction gearbox case on the motor and secure it with the screws
- Cut the sensor sheath to reveal about 5 mm of the conductor inside
- Insert the rotation stop pins in their seats
- Fit the crown gear
- Fit the planetary gear set
- Using a press, fit the bearings into the reduction gearbox shaft. Use a driver to avoid damaging the teeth
- Secure the bearing with the snap ring
- Place the snap ring in seat in the front bearing support, making sure it is perfectly snug
- Fit the shaft and bearings into place in the support
- Grease the bushing O-ring and fit it in the front bearing support using the driver
- Secure the bushing with the snap ring, making sure it is perfectly snug
- Using a hoist, fit the shaft into the reduction gearbox
- Fit the O-rings
- Fix the sensor in place with the cable gland
- Wet the first counterface with alcohol and fit it into the seat in the bushing with the driver
- Clean the counterface with a paper towel and lubricate the surface slightly
- Clean the first mechanical seal with a paper towel and wet it with alcohol
- Insert the first mechanical seal and fit it with the driver
- Fix the seal with the snap ring
- Fit the washer
- Clean the second mechanical seal with a paper towel and wet it with alcohol
- Place the second mechanical seal in the shaft and fit it with the driver
- Clean any residues from the surfaces
- Wet the second counterface with alcohol and fit it into the seat in the front cover with the driver
- Clean the counterface with a paper towel and lubricate the surface slightly
- Fit the front cover on the motor and fix it with the screws, tightening them by hand first, working by opposites
- Fit the plug in the reduction gearbox case
- Use Loctite 243 threadlocker or equivalents
- Use a union to connect the compressed air system to the motor case and test for tightness at a maximum pressure of 1 bar
- Remove the union
- Use a union to connect the compressed air system to the front cover and test for tightness at a maximum pressure of 1 bar
- Remove the union
- Lie the motor on the bench
- Fill the front cover chamber with oil. Refer to the documentation for the correct amount.
- Fit the plug in the front cover (Use Loctite 270 threadlocker or equivalents)
- Fill the reduction gearbox chamber with oil through the hole in the motor case
- Refer to the documentation for the correct amount.
- Fit the plug in the motor case
- Use Loctite 243 threadlocker or equivalents
- Stand the motor on the bench
- Protect the cables of thermal protections and the sensor with a sheath
- Grease the O-ring into the seat in the rear bearing support
- Fit the rear bearing support. Fit the cables through the hole
- Fit the O-ring into the seat in the rear cover
- Fit the cable into the cable gland and the rear cover
- Fit the cable stop and fix it in place
- Fit a lug to the ground cable and screw it to the bearing support
- Connect the motor terminals to the electrical cable and tighten the lugs
- Check the type of connection in the documentation
- Taking care not to crush the cables, fit the rear cover on the case and screw it in place
- Fix the cable gland
- Using a union, connect the compressed air system to the rear cover
- Test for tightness at a maximum pressure of 1 bar
- Remove the union
- Fit the plug in the rear cover (Use Loctite 270 threadlocker or equivalents)
- Lie the motor on the bench
- Fix the bracket to the rear cover (Use Loctite 270 threadlocker or equivalents)
- Position the plastic guard and fix it to the runner (Use Loctite 270 threadlocker or equivalents)
- Fix the runner to the bracket (Use Loctite 270 threadlocker or equivalents)
- Sling the motor in a horizontal position
- Fix the lifting handle to the collars (Use Loctite 270 threadlocker or equivalents)
- Fit the plastic guards and fix them to the supporting bracket (Use Loctite 270 threadlocker or equivalents)
- Fix the supporting bracket to the collars (Use Loctite 270 threadlocker or equivalents)
- Position the sliding cylinders in the runner and fix with the split pins
- Mount the propeller on the shaft and fix it with the screw (Use Loctite 270 threadlocker or equivalents)