1972 Cub Cadet Model 73

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1972 Cub Cadet Model 73

Postby Rudi » Wed Apr 27, 2011 6:56 pm

My buddy Bernie (from Monarch - the guys who have been re-arranging my backyard for the last 15 years :lol: ) has become the new keeper of a 1973 CC 73 that hails from the Highlands of Nova Scotia. In pretty good shape apparently even though it has Ford fenders, a weird seat and no brakes. The Ford fenders and seat are a minor problem that a little time and judicious searching will correct but we need to understand the brakes.

He apparently has everything up to Items # 1 thru #3 .. on Page 24 of the TC-113-M and apparently they are still available. However we haven't been able to figure out how these parts shown on page 24 translate into a coherent braking system .. assume that the drive shaft mates to the Brake Disc Assembly .. how does that happen. Need to know so when I go see it in a day or so, I have a clue as to what I am looking for. Not being a mechanic does have it's limitations methinks :roll: :(

Any and all simplistic explanations hopefully with diagrams is welcome indeed.

Oh. Bernie is off to North Conway New Hampshire for a week plus traveling days around May 7th - 16th or so .. parts 73's would be worth making detours for he figures.
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Re: 1972 Cub Cadet Model 73

Postby Eugene » Wed Apr 27, 2011 7:19 pm

http://www.cngco.com/

Go to the Model 73 exploded parts. Look up "clutch" and then "brake". Item #15 (hope that's the correct part number) in the clutch exploded parts is the link/control for the brake.

Edit: How the linkage works. When you step on the clutch pedal you release the clutch - by stepping down a bit further on the pedal you apply the brake.
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Re: 1972 Cub Cadet Model 73

Postby gitractorman » Wed Apr 27, 2011 7:23 pm

Rudi,
You know, in all the Cadets I've worked on, I've never dug into the wet brakes like on the early ones. So, I just spent 1/2 hour looking through the parts breakdown online, and for the life of me cannot figure it out. Sorry, I'm not much help. However, I can let you know that the 73 was built between 1969 and 1971 and is the last of the line of "original" styled Cub Cadet tractors. The next series was the 1x8/1x9 series tractors, and were wide frame, so the smallest model, the 86, had an 8hp Kohler instead of the 7hp, and was built totally different.
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Re: 1972 Cub Cadet Model 73

Postby Jim Becker » Wed Apr 27, 2011 8:14 pm

I guess I don't see what the question is. The clutch/brake pedal hooks through some rods and levers to push a rod into the lower part of the transmission housing. The push rod pushes a brake lining so the disc gets squeezed between two linings. The disc is splined to the transmission output shaft.
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Re: 1972 Cub Cadet Model 73

Postby JimT » Wed Apr 27, 2011 9:13 pm

Rudi wrote:He apparently has everything up to Items # 1 thru #3 .. on Page 24 of the TC-113-M and apparently.....


Can't find this manual on-line. Can you supply a reference where to see this page? I may have some parts, but I don't know which ones you are needing. As Jim stated the wet brake is a fairly simple item.
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Re: 1972 Cub Cadet Model 73

Postby JimT » Wed Apr 27, 2011 9:26 pm

Is this what you are referrring to?

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Re: 1972 Cub Cadet Model 73

Postby Eugene » Wed Apr 27, 2011 9:44 pm

Carter and Grunwald has different part location numbers identifying the same part. The same part in the clutch exploded view has a different location number in the brake exploded view.

If you have another narrow framed CC with manual transmission - same clutch and brake set up. # 11 is the same part as # 15

So a bit of on line research comparing 73 part numbers with the other narrow framed, manual transmission CCs. And, rather than purchasing individual parts, suggest purchasing a narrow framed, manual transmission parts tractor.
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Re: 1972 Cub Cadet Model 73

Postby Rudi » Wed Apr 27, 2011 9:48 pm

Jim, yup that is the diagram. The manual I have is not on my server and doesn't appear to be on cubcadetcollectors.com either. However Jim Becker answered the question for me. As I thought but wasn't sure. Makes sense even to a non-mechanic. Thanks Jim

Now just to figure out if the parts are all available. Time to spend some time on C&G's parts lookup.
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Re: 1972 Cub Cadet Model 73

Postby JimT » Thu Apr 28, 2011 5:55 am

Rudi wrote:Now just to figure out if the parts are all available.


Went here http://www.cubcadet.com/webapp/wcs/stor ... 00505_Y_-1 and looked up the parts 1-3 that are shown in the diagram above.

Ouch.

Part 1 - brake pads x 2 - $23.06 and available.
Part 2 - Disc - $165.35 and available (this is where the "ouch" comes in).
Part 3 - Retainer - does not appear to be available any longer.

I have the parts that came out of Brutus (a 582 cub cadet) if you are interested. I looked them up and they are the same part numbers as a model 73. At the price of the disc I think I would do like Eugene suggested and look for a $50.00 junker with wet brakes and buy it and rob the parts you need from it.
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Re: 1972 Cub Cadet Model 73

Postby Rudi » Thu Apr 28, 2011 7:09 am

Jim:

Can you let me know how much in a PM? Also how we can get them either to North Conway or to Dave's up in Maine? I would assume that Dave's might be the more logical choice depending on time and what might be available. Then I will give Bernie a call.
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Re: 1972 Cub Cadet Model 73

Postby Eugene » Thu Apr 28, 2011 9:37 am

Before you go buying brake parts - check to see if it is just the adjustment.

And yes there is an adjustment on the linkage to the clutch pedal throw. You need to set the adjustment so that as you depress the pedal part way the clutch disengages and with a bit more pressure on the pedal you are still compressing the clutch springs and engaging the brake.

At one time there was an on line service manual for narrow framed Cadets. Haven't been able to find the service manual in quite some time.
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Re: 1972 Cub Cadet Model 73

Postby Rudi » Thu Apr 28, 2011 10:40 am

Eugene:

The parts are simply not there so nothing to adjust. We need to get the parts Bernie is missing to put this back together. And it would figure that the disc is the most expensive and that it isn't there :big give up: Getting the pads would not be hard but #3 is NLA apparently. I think I agree that getting a parts machine is best but since he is taking the car and not the truck a whole 73 just isn't in the plan for the New Hampshire trip, but the parts itself would not be an issue. If we cannot find the parts for the NH trip, then maybe we can find a junker for $50.00 and get it to Maine, then we can make a run to Dave's, have a minifest and bring the toys home :{_}: Unfortunately, Cub Cadets are like Cubs - no where near as plentiful here as south of the 49th, so south we have to go to find candidates. Let's see what happens. I will call Bernie this evening and see what he thinks.
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Re: 1972 Cub Cadet Model 73

Postby JimT » Thu Apr 28, 2011 3:15 pm

Rudi,

PM sent to ya.
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Re: 1972 Cub Cadet Model 73

Postby JimT » Fri Apr 29, 2011 8:44 am

Parts are on their way.
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