Repair old Osceola Electra 203 auger

[JayDeHay]

I've got 2 of these old augers, one I've been running a 6" Lazer hand auger, and the other a 8" Jiffy chipper. The one that's been running the Jiffy chipper was running fine up until last weekend when it started acting like it was slipping a clutch. I finally got around to tearing it open today, and noticed that the primary drive gear on the motor is completely stripped. Funny thing is, the other gears are all in perfectly good shape. Go figure.

I'm trying to find a replacement gear, but I'm having trouble figuring out what I'm looking for. I've checked McMasterCarr, but can't find anything on their site that fits the bill. I can't get an accurate measurement on the gear pitch to determine if I'm looking for a 14-1/2 or 20 degree pressure angle.

Here's what I've got so far:

Outside diameter = .438"

Bore = .313"

Length = .750"

Tooth count = 12

[hamms-scooter]

Would strike master be able to point you in the right direction ? I think they bought ope out

[leech~~]

If you can't find another one. Could you clean it up with a file and flip it over and use the other end? It may run for a little longer anyway?

[JayDeHay]

Would strike master be able to point you in the right direction ? I think they bought ope out

Quote: We didn't manufacture that particular unit and cannot provide replacement parts for it.

Can't say I blame them, though.

[JayDeHay]

If you can't find another one. Could you clean it up with a file and flip it over and use the other end? It may run for a little longer anyway?

I'm looking in to that option, I would just switch this power head to the 6" auger. I've got a machinist buddy looking in to mirror-ing the spring pin hole to the other side.

I'm also trying to find an interested party willing to trade their lazer/shaver style drill for my chipper drill. It's a Jiffy with the counter-clockwise (left hand) rotation. Will even throw in the Jiffy 3hp power head (non-running currently).

[leech~~]

The other thing you need to look at is the shaft on the gear that this one drives. It may have grooved this drive gear that much because of the wear-play in the shaft. Usually things will not wear like that unless there is some play somewhere!

[JayDeHay]

The other thing you need to look at is the shaft on the gear that this one drives. It may have grooved this drive gear that much because of the wear-play in the shaft. Usually things will not wear like that unless there is some play somewhere!

Good thought, I'll have to dig out the caliper and pull some measurements when I get home. I think if there's more than .010" slop I'll see about having the casing rebushed.

[Tom7227]

I am nothing more than a DIY'er but I wonder about what caused the gear to wear out. Whatever is downstream might have something kaflooey to bind things up and result in this worn gear?

[JayDeHay]

I am nothing more than a DIY'er but I wonder about what caused the gear to wear out. Whatever is downstream might have something kaflooey to bind things up and result in this worn gear?

Indeed it did! Turns out that the secondary drive gear bushings are worn out, so under power the gears are only barely engaging. I'm going to have to pull out the old bushings and get some that are undersized to have reamed out. But, I'm going to be doing it AFTER I find a replacement gear. In the meantime, it's a parts unit.