Beogram 4002 (5513): Lubrication of Platter Motor Bearings

Today I lubricated the bearings of the DC motor of the Beogram 4002 (5513) that I am currently restoring. This shows the motor after extracting it:

This brushed commutator motor has simple sleeve bearings. To get at the bearings, the first step is to take the pulley and the outer housing off. It is a good idea to make marks to remember later in what orientation the bottom plate was mounted to the motor. The pulley is glued to the shaft, i.e. one can simply pull it off. After taking off the two small screws the housing can be opened,

and the motor extracted:

After removal of the black rubber vibration insulation boot the circuit board that connects to the brushes is visible:

After marking the position of the bottom part, the three screws that hold the bottom part can be removed, and the brushes plate pulled off:

This shows the two halves in more detail:

The bottom bearing can be lubricated by putting a dab of silicone grease into the bottom sleeve below the brushes. The top bearing is best lubricated by simply put a bit of grease on the shaft and pushing it up and down through the bearing a few millimeters. After application of the grease, the motor can be reassembled. The commutator is fitted with a slanted plastic disc that pushes the brushes apart and guides them on the commutator while the plate is inserted. This is very convenient and protects the brushes from being bent out of shape. After that simply track back the disassembly steps. Once the motor is back in its outer housing the pulley can be glued back on the shaft with superglue gel. And that is it!