Wright Line punch manual

[Dennis Boone]

Does anyone have routine maintenance information (e.g. user or service
manuals) for the Wright Line manual punches?  My newly acquired unit
seems to need a little lubrication.  I'll guess if I have to, but...

This is the variety with the large grey wheel on the side to select the
desired character, and a sort of "wheelhouse" in the middle to hide the
cams, ribbon mechanism, etc.  There's no model number sticker on it.

Thanks!

De