Re: Cleaning AR88 Gearbox
Well, I obtained some Screwfix driveway degreaser as recommended by another forum, water soluble, 3 capfuls to 3 litres, the capacity of my ultrasound tank. Gave it 20 minutes and all grease gone etc. Thoughly washed in clean distilled water.
Took gearbox apart, having done an earlier one was aware of the pitfalls of springs, sandwiched gears etc. Baked all parts in oven at very low temperature for 1 hour. Let it cool and replaced both types of ball bearings and new grease. Springs were good, once degreased, the operation of the meshed gears was good. Used some sewing machine oil for the end float bearings.
Re-assembly took me about 45 minutes, if I ever do this again will make a jig to hold the plaates with the shafts otherwise its a balancing act.
Appear to work like new now, very smooth, no lumpiness and no backlash!!
Andy
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