Do not immerse parts in cleaning solvent.
Immersing the yoke assembly and/or armature will damage the insulation wipe these parts with a cloth only.
Do not immerse the drive unit in cleaning solvent.
The overrun clutch is pre-lubricated at the factory and sol-vent will wash lubrication from the clutch.
The drive unit may be cleaned with a brush moistened with cleaning solvent and wiped dry with a cloth.