irwin@uiucdcs.CS.UIUC.EDU (04/30/86)
We have a Kennedy 9100, three 9300s and two 9400s. They all have the same type of hub. Based on the experience at our site, I feel that if you replace the neoprene O rings on the hub, your problem will go away. If these get hard and will not compress well, it will take a lot of pressure (tighten the adjustment more) to keep the reel from slipping. The major problem that we have had is the "cold roll pin" that acts as a hinge pin for the pressure lever wears and breaks. We found a good solution for this. The last time one broke, we took a drill bit of the correct diameter, ground a groove around it on the end that would chuck up in the electric drill, and then snapped it off at the grove, to make a hard solid pin to replace the cold roll pin. (You make the groove the distance from the end of the bit that the pressure lever is wide). We have not had one of these pins give up yet. To get the hub apart, the lever is lifted, there is a screw behind it, this is removed and the outer part of the hub is turned counter clock wise until the hinge part of the lever is screwed out of the hub. You can take a look at the condition of the hinge pin AND the O ring. As you probably know, the screw is the actual tension adjustment, as there are several holes around the hub, that it can fit. If too loose on the reel, just back out the screw, turn the outer part of the hub another 1/4 turn to the right and try it again. While you have it apart, I would think it might help to rough the surface of the O ring by pulling it through some steel wool so that the surface has more friction. Once the reel slips on it much and shines it up allowing less friction, things are bound to get worse. (By the way, that hub is cast very well, I doubt if it will crumble, it might break the hinge pin if it is getting worn)
paul@vcvax1.UUCP (paul) (05/02/86)
> > We have a Kennedy 9100, three 9300s and two 9400s ... > The major problem that we have had is the "cold roll pin" that acts > as a hinge pin for the pressure lever wears and breaks. We found a > good solution for this. The last time one broke, we took a drill bit > of the correct diameter, ground a groove around it on the end that > would chuck up in the electric drill, and then snapped it off at the > grove, to make a hard solid pin to replace the cold roll pin ... Same problem happened to me. I called up Kennedy for a replacement part; they were very courteous, and informed me that a replacement pin could be purchased as part of a hub assembly kit that sold for ~$30. Normal delivery was around 60 days, however -- but if I neeeded it immediately (I did) I could get a rush delivery, at an additional $75 or so. Since $105 was more than I wanted to pay for a small 3/4" metal pin, I went to a local hardware store looking for an alternative. I almost bought a small drill bit, too, but found something I liked even better: a nail. I cut the ends, and it fit perfectly. Total price: $0.00 (very friendly hardware store). As a matter of fact, they gave me two nails for the same price -- I'm keeping the second one as a spare. ------------- Paul Kleppner VenturCom, Inc. 617/661-1230 {seismo!harvard,genrad!mit-eddie}!cybvax0!vcvax1!paul