Re: HA's 52 200 Grey Ghost

Posted by HH56 On 2015/7/31 8:45:03

On the blade balance I've seen some very small U shaped clips with serrated teeth for gripping -- sort of looks like a small speed nut without the hole -- placed on the blades. A real speednut of the type that slides over sheetmetal and grips tightly might work.

On lube, the upper can be given a drop or two of oil around the shaft using a needle applicator and let it run down and soak in. On the sealed end some have carefully drilled a small hole in the center of the shaft protrusion area and applied a drop or two of oil again using the needle applicator. Some of the motors have a felt pad surrounding the bearing which can be moistened that way. Just don't get too much oil inside that it runs all over in case there is no pad. The hole can be sealed with a dot of tape, or if carefully placed and small, just left open like it might have been a factory hole.

While brushes don't usually squeal, It is also possible the lube is OK and it is the brushes against the commutator making a noise.