Beisler 739-23-1 Service Manual - Manual (Page 23)

2.12.3 Lubrication of blades
Caution! Risk of injury!
Switch off main switch!
Lubricate blades only when the sewing machine is switched off.
Instruction
The edge cutter must be lubricated daily with a few drops of oil.
Lubrication of blades
–
Apply one drop of oil onto the pressure screws 1 and 2, the blade
edges 3 and the closely fitting surfaces of the blades.
3-23
3 2 1