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Old 11-25-2013, 04:11 PM   #15
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1966 26' Overlander
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Originally Posted by Jim & Susan View Post
The problem with the jack is that one of the gears is stripped. The gear that sits between the electric motor and the main shaft is toast. Unbelievably, it's not made of metal. It's made out of a composite material (that I can't remember the name of)

Jim
Jim,

That gear is likely designed to be non-metallic. This design is for safety or protection. So when the in-movable object meets the irrestable force something gives. This would be the designed item that gives. Typically made of a plastic (phenolic resin) or a fibre material.

This jack being 40 years of age two things may be stated about it. The grease inside did not and was not designed to survive this long and may be part of the problem
To some this jack even broken may have value to the purist or the restorer. And as such if you are pitching it you might consider offering it to some one to restore for the price of shipping.

Just some thoughts.

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Old 11-25-2013, 04:28 PM   #16
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Originally Posted by Jim & Susan View Post
Just wanted to say thanks again for all of the suggestions. The problem with the jack is that one of the gears is stripped. The gear that sits between the electric motor and the main shaft is toast. Unbelievably, it's not made of metal. It's made out of a composite material (that I can't remember the name of) ;that I've seen in other places on the camper.....the electrical wall outlet boxes for example. Equally unbelievable to me is that it lasted 40 plus years. I'm going to poke around a little and see if I can find that gear anywhere, but bet it's a lost cause. The part numbers are actually in the shop manual.

Frank, what sidewinder would you recommend for this camper? It's a '73 Overlander that has a dry weight of about 4500 lbs. Max loaded about 6000 lbs.

I priced both new electric and simple mechanical today at a local RV place. Hand crank runs around $50. New electric models start around $200 and go up from there. Simple sounds good right now.

Jim

You actually were lucky that it lasted for so many years. I have an '04 - 30 foot classic and had that happen several years ago on a trip. It was the same small gear that broke. I was able to replace the gear with very little difficulty. Wolf
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Old 11-25-2013, 07:04 PM   #17
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I hear the replacement gear is cheap. You can then support the frame and cycle several times to lubricate. If binding you can try fixing.
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Old 11-25-2013, 08:28 PM   #18
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Phenolic gear

Hi Jim,
I have one of those phenolic gears. If you want it, let me know. I'd be happy to send it to you. I think they are still in production.
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Quote:
Originally Posted by Jim & Susan View Post
Just wanted to say thanks again for all of the suggestions. The problem with the jack is that one of the gears is stripped. The gear that sits between the electric motor and the main shaft is toast. Unbelievably, it's not made of metal. It's made out of a composite material (that I can't remember the name of) ;that I've seen in other places on the camper.....the electrical wall outlet boxes for example. Equally unbelievable to me is that it lasted 40 plus years. I'm going to poke around a little and see if I can find that gear anywhere, but bet it's a lost cause. The part numbers are actually in the shop manual.

Frank, what sidewinder would you recommend for this camper? It's a '73 Overlander that has a dry weight of about 4500 lbs. Max loaded about 6000 lbs.

I priced both new electric and simple mechanical today at a local RV place. Hand crank runs around $50. New electric models start around $200 and go up from there. Simple sounds good right now.

Jim
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Old 11-25-2013, 08:40 PM   #19
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In October, I got stuck with a dead battery. Either I left the storage switch on on or one of the kids moved it - who knows.

Anyway, I was 10 minutes from a campground with hookups, but couldn't get there because the jack wouldn't move - in the end I had to borrow a battery from another WBCCI member to get going. I've been thinking about replacing the electric jack with a hand powered one ever since.

Is there a recommended model? Ideally, there's a model out there that accepts a power drill when available, muscle power when not.
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Old 11-26-2013, 07:33 AM   #20
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Just curious , could you have jumpered it from your vehicle?
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Old 11-26-2013, 07:48 AM   #21
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My jack works from the TV's power when I am hooked up to tow.

Also, I seem to remember that the grease is supposed to be re-packed (much like wheel bearings) once in a while. If the new jack is ~$200 and the gear is only $50, it looks like a no-brainer to replace it, and even carry a spare...

Who is to say that a new jack's gear won't give in a few years if you use the jack a lot?
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Old 11-26-2013, 10:29 AM   #22
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Hi Jim,
I have one of those phenolic gears. If you want it, let me know. I'd be happy to send it to you. I think they are still in production.
Worm gear for Airstream Superjack. SKU3125 [010051] - $54.95 : Out-of-Doors Mart!, More Airstream Parts on-line than anyone!

Thanks Lance! I'll get in touch one day next week after we get back home and make some arrangements. We're in Florida right now dodging thunderstorms and waiting for Turkey Day with the relatives.

Very, very much appreciated!

Jim
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Old 11-26-2013, 11:06 PM   #23
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Jim, Take the motor head off, the shaft underneath should turn. Look for a wench like this. A large screwdriver would also work. Bob
So THAT is what the funny looking wrench is for.... I've been wondering for a long time.

-J
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Old 11-27-2013, 06:33 AM   #24
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My jack works from the TV's power when I am hooked up to tow.
I'll look into that when I pick her up in spring. That's good to know, thanks. Mine was completely dead.
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