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I've had to clean and re-grease stub-axle bearings plus reduction gearboxes for mount drives...I start by covering a table with newspaper, then cover this with photocopy paper using masking tape to hold it together..using a felt pen mark out and number a series of squares..one square for each part..two tubs with kero to wash and rinse all parts..a checklist to record each part in the order of removal..I remove the old grease using an old rag then wash the part in kero with a paint brush..then let the part soak in the rinsing tub...(use a clean paint brush for this)..once clean let it airdry in it's square..(drying by using a cloth may leave fibers caught in gears etc) when it's dry check to see if any dirt shows on the paper..if so re-rinse in clean kero.
I use a lithium based bearing grease with good results..
Before assembly wash and dry all tools required as well as your hands!!
Cheers!!
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