Gear units – Operating and Assembly Instructions
42 B 1000 en-2518
Information
Oil level
The oil does not need to be changed on gear units without oil level screw(please see chapter 6.1 "Versions and
maintenance"). These gear units are lubricated for life.
Standard helical gear units have no oil level screw. Here, the oil is topped up through the pressure vent bolt using
the quantities listed in the table in Section6.4 "Helical gear unit".
Cleaning or replacing the vent plug
Unscrew the vent screw and thoroughly clean it (e.g. with compressed air) and fit the vent screw in the
same place, If necessary, use a new vent screw with a new sealing ring.
Replace the shaft sealing ring
Once the shaft sealing ring has reached the end of its service life, the oil film in the region of the
sealing lip increases and a measurable leakage with dripping oil occurs. The shaft sealing ring must
then be replaced. The space between the sealing lip and the protective lip must be filled
approximately 50 % with grease on fitting (recommended grease: PETAMO GHY 133N). Take care
that after fitting, the new shaft sealing ring does not run in the old wear track.
Re-lubricating bearings
For bearings which are not oil-lubricated and whose holes are completely above the oil level, replace
the roller bearing grease (recommended grease: PETAMO GHY 133N). Please contact the NORD
service department.
General overhaul
For this, the gear unit must be completely dismantled. The following work must be carried out:
– clean all gear unit components,
– examine all gear unit components for damage,
– all damaged components must be replaced,
– all roller bearings must be replaced,
– replace back stops if fitted,
– replace all seals, radial seals and Nilos rings,
– replace plastic and elastomer components of the motor coupling.
The general overhaul must be carried out by qualified personnel in a specialist workshop with
appropriate equipment in observance of national regulations and laws. We recommend that the
general overhaul is carried out by the NORD Service department.
Pos: 65 /Anleitungen/Getriebe/6. Anhang/6. Anhang @ 3\ mod_1368691985561_388.doc x @ 65721 @ 1 @ 1
154
To Next Page
