Left Final Removal for Brake Lining Replacement - PART 1

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Left Final Removal for Brake Lining Replacement - PART 1

Postby Dale Finch » Mon May 13, 2013 8:48 pm

While mowing this past week, I felt something wrong with the left brake on my ’52 Cub. It was definitely not working right, so when I finished I looked in the brake slot and saw the brake drum had migrated inboard toward the differential housing. So I took her (Bobbie) to the “hospital” (the shop I have the good fortune to use) and proceeded to remove and repair it.

I figured that this is a very common procedure, but there are still a few folks who have not done this and have not had the opportunity to watch it at a Cubfest. So I took photos at each step. (I am NOT a pro, so if any of my procedures are wrong, feel free to let me know.

REMOVE THE MOWER DECK
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REMOVE DRAWBAR/MULE DRIVE ASSEMBLY
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INSTALL WEDGES IN FRONT AXLE
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CHOCK TRACTOR
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JACK TRACTOR
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REMOVE WHEEL/WEIGHT AND FENDER
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REMOVE BRAKE ROD CLEVIS AND COTTER PINS
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SUPPORT FINAL WITH ENGINE HOIST
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REMOVE LAST 2 BOLTS ON BOTTOM OF FINAL (after strapping under engine hoist!)
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CAREFULLY SLIDE FINAL OUT OF DIFFERENTIAL
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YOU CAN SEE WHERE THE BRAKE DRUM WAS BEGINNING TO RUB ON THE DIFFERENTIAL SEAL RETAINER BOLTS
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NOTE HOW BRAKE DRUM HAD MIGRATED ALMOST 2" INBOARD (left) WITH BRAKE BAND BARELY TOUCHING
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CAUSE? SET SCREW BROKEN AND APPARENTLY LOOSE
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THE TOP 1/4" WAS THE ONLY BRAKE PAD CONTACT
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BRAKE CONDITION
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BROKEN SET SCREW AND LOCK NUT (BOTTOM) WITH "NEW" ONE (TOP)
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CLEAN UP FINAL OIL PAN HOUSING
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REMOVE OLD DIFFERNTIAL SEAL (Why not? You have it this far apart and it's really some cheap/easy insurance!! I also "chased" all the bolt hole threads with a tap...makes reassembly easier AND precludes problems later on)
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OLD AND NEW DIIFERENTIAL SEALS
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DRIVING IN NEW SEAL (using a socket upside down, with a larger diameter than the seal, keeps you from going beyond flush with outer edge)Image

REMOVE TRANSMISSION "FULL LEVEL" PLUG (might as well check fluid and top off...this is the best access you will ever have!!!)
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REMOVE FILLER PLUG
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ADD OIL OF CHOICE (I used 90wt gear oil) UNTIL IT STARTS COMING OUT LOWER "FULL" PLUG HOLE
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CLEAN RUST FROM BRAKE DRUM (worn edge was a small enough area, I decided to leave it)
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DRILL OUT OLD RIVETS TO REMOVE OLD LINING
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NEW AND OLD BRAKE LININGS (my tremendous thanks to Bob McCarty for making up these...I was SO glad I bought a set from him at a recent Cubfest!)
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Sorry about the length of this post, and I must now continue on a second post due to photo limits. Thanks for getting this far! Look for part 2!
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Re: Left Final Removal for Brake Lining Replacement - PART 1

Postby Denny Clayton » Tue May 14, 2013 8:51 am

Good job and a nice "how to", Dale. I like to remove the retainer and put it on the bench. It has an o-ring on it to check and makes it easy to punch out the old seal from behind and more convenient to push the new seal in while at bench level. Great pics! 8)
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Re: Left Final Removal for Brake Lining Replacement - PART 1

Postby BJ Moretz » Tue May 14, 2013 9:26 am

nice job documenting. Thanks !
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Re: Left Final Removal for Brake Lining Replacement - PART 1

Postby Dale Finch » Tue May 14, 2013 10:29 am

Denny Clayton wrote:Good job and a nice "how to", Dale. I like to remove the retainer and put it on the bench. It has an o-ring on it to check and makes it easy to punch out the old seal from behind and more convenient to push the new seal in while at bench level. Great pics! 8)

That is a VERY good point! Wish I had done that...think I need to add that to the list of photos with at least a picture from the parts manual with part number. Actually, I never figured out where that o-ring was!! I have had the retainer off my SA, and not sure it had an o-ring, but I know the Cub parts manual had one shown. DANG! Oh well...always something to learn. Anyone else have something to add? (for next time!)
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Re: Left Final Removal for Brake Lining Replacement - PART 1

Postby Barnyard » Tue May 14, 2013 1:08 pm

I have copied and combined parts 1 and 2 into the "How To" forum so they will be easily accessible in the future.

Great job Dale!
It is common sense to take a method and try it. If it fails, admit it frankly and try another. But above all, try something.
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