Wittenstein Alpha LK+, Operating Manual, Page: 18 / 22

Maintenance and disposal LK
+
/LPK
+
/LPBK
+
en-16 2022-D026817 Revision: 07
7 Maintenance and disposal

Read the general safety instructions before beginning work (see Chapter 2.7 "General safety
instructions").
7.1 Maintenance work
7.1.1 Visual inspection

Check the entire gearhead for exterior damage.

The sealings are subject to wear. Therefore also check the gearhead for leakage during each
visual inspection.

Check the mounting position, so that no foreign medium (e.g. oil) has collected on the output
shaft.
7.1.2 Checking the tightening torques

Check the tightening torque of the threaded pin on the motor mounting.

The prescribed tightening torques can be found in Chapter 9.1 "Specifications for mounting
onto a motor", Table "Tbl-14".

Check the tightening torque of the fastening screws on the gearhead housing. If, while
checking the tightening torque, you discover that a fastening screw can be further tightened,
follow the instructions in "Remounting the screw".

The prescribed tightening torques can be found in Chapter 9.2 "Specifications for mounting on
a machine", Tables "Tbl-15", "Tbl-16" and "Tbl-17".

For LPBK
+
gearheads, also check the fastening screws on the toothed belt pulley.

The prescribed tightening torques can be found in Chapter 5.4 "Components mounted on the
output side", Table "Tbl-9".
Remounting the screw

Loosen the screw.

Remove the glue residue from the threaded bore and the screw.

De-grease the screw.

Coat the screw with a threadlocker (e.g. Loctite
®
243).

Screw in the screw and tighten it with the prescribed tightening torque.
7.2 Startup after maintenance work

Clean the outside of the gearhead.

Attach all safety devices.

Do a trial run before releasing the gearhead again for operation.
7.3 Maintenance schedule

Make sure that it is possible to remount the screw on the gearhead
without damaging the entire machine.
Maintenance work At startup For the first time
after 500 operating
hours or 3 months
Every
3 months
Yearly
Visual inspection X X X
Checking the
tightening torques
X X X
Tbl-10: Maintenance schedule