redronin wrote:almost done with the rebuild of a well treated Mark V 510. Assembling the sheave and idler-it isn't going back together very well. There is a copper sheave spring/clip getting in the way of everything seating well. The copper clip seems to be holding the keyway bar in place. Is this temporary until the 2 pulley/bearings come together?
That small retaining spring prevents the idler sheave from moving on the shaft towards the control sheave end. It seats in a groove on the shaft. The keyway bent end MUST be inserted into a 'hole' prior to the idler sheave going on the shaft. The idler sheave holds the key in that hole.
So the assembly sequence is, insert bent end of key into hole, slip the idler sheave onto the shaft and over the key/hole, slip the retaining clip on the shaft and down to the groove, then slip the control sheave on.