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Shimano PD A530 Lock Bolt

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Shimano PD A530 Lock Bolt

Old 09-21-14, 09:14 AM
  #1  
migrantwing
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Shimano PD A530 Lock Bolt




As in the title, I need one, or preferably two ( a Left and Right).
It's a plastic sleeve with a screw thread that screws into the body of the pedal and holds the axle. A replacement part plus the axle is around 20 ($40 USD!!!!!!) The part that I need is about 2 ($5 USD)...but I can't find any anywhere.
I was thinking of trying a different model number spare, but I don't know if the size is any different or if all these Shimano SPD pedals have the same interior geometry and size. They look like they do, but.......?
The part in question is (from Shimano tech docs)

Y43Z13100
Lock Bolt (Right)
Y43Z14100
Lock Bolt (Left)

It seems silly to buy new pedals for 30+ as there is nothing wrong with them except this one part that needs replacing.


**UPDATE* Managed to get replacements online, but now the old plastic lock bolt has sheared off in the aluminium pedal body and I'm ****ed if I can get it out. Why don't they just make them out of metal?
Any suggestions at all? Seems a shame to throw away an otherwise great set of pedals.
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Last edited by migrantwing; 09-21-14 at 09:18 AM.
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Old 09-21-14, 01:54 PM
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Originally Posted by migrantwing View Post
the old plastic lock bolt has sheared off in the aluminium pedal body and I'm ****ed if I can get it out.
A screw extractor, also called an easy-out.

I had a similar problem removing the thermostat from my pickup: there for 25 years, it was made out of brass, thus weak, and had bonded to the alumin(i)um block. The extractor just ground it up. I ended up drilling it out by hand with the largest bit that fit inside the threads of the block into which it mounted then chasing that with a tap. Then I flushed the cooling system; the little bits of freshly-ground brass looked like gold.


Originally Posted by migrantwing View Post
Why don't they just make them out of metal?
Save weight? A penny? A farthing?
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Old 09-21-14, 04:51 PM
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Originally Posted by RandomTroll View Post
A screw extractor, also called an easy-out.

I had a similar problem removing the thermostat from my pickup: there for 25 years, it was made out of brass, thus weak, and had bonded to the alumin(i)um block. The extractor just ground it up. I ended up drilling it out by hand with the largest bit that fit inside the threads of the block into which it mounted then chasing that with a tap. Then I flushed the cooling system; the little bits of freshly-ground brass looked like gold.



Save weight? A penny? A farthing?
Thanks for your reply, RandomTroll. I did actually miss one, possibly the most, important thing...the axle is still within the pedal body, so it doesn't allow me to use an extractor of any kind. I attempted to loosen the plastic lock bolt with the little grey Shimano tool http://www.parktool.com/uploads/imag...help/spd_5.jpg but the lock bolt just cracked leaving the plastic thread and the metal axle inside the pedal body.



Red is the part that sheared/cracked off.

Blue is what is in the Alumin(i)um body. Looks like it's a no-no regards a fix.

Apologies for the error in explanation.
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Last edited by migrantwing; 09-21-14 at 04:58 PM.
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Old 09-21-14, 06:07 PM
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How much is your time worth?
Buy new:
Shimano A530 Clipless Spd Pedals, Pedals, PEDALS ROAD
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Old 09-21-14, 08:24 PM
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How much is plastic? Could you boil it in water to melt the target part?

I don't understand: you have no access to the inside of the broken part? It's a sleeve bolt, right? Haven't you removed the part of the pedal that fits inside the broken part?

Last edited by RandomTroll; 09-21-14 at 08:31 PM.
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Old 09-22-14, 02:53 AM
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Originally Posted by trailangel View Post
How much is your time worth?
Buy new:
Shimano A530 Clipless Spd Pedals, Pedals, PEDALS ROAD
I have time on my hands.

I didn't want to have to buy new pedals for the sake of a few $ and a simple fix and replacement of a part. I have little money and was trying to fix these pedals for my girlfriend as she wants to try SPD pedals.

We live in a throwaway society, doesn't mean I have to follow suit.

Last edited by migrantwing; 09-22-14 at 03:19 AM.
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Old 09-22-14, 03:05 AM
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Originally Posted by RandomTroll View Post
How much is plastic? Could you boil it in water to melt the target part?

I don't understand: you have no access to the inside of the broken part? It's a sleeve bolt, right? Haven't you removed the part of the pedal that fits inside the broken part?
I've tried melting it, no good.

Yes, it's kind of a sleeve bolt. Sadly, the axle/spindle goes through the lock bolt and a bushing, then the bearings are held in place with two little locknuts. This larger of the two locknuts is what is holding the spindle in place because of a slightly wider diameter than the pedal lock body. I've tried pushing/pulling, hammering with a rubber mallet to try and free the axle/spindle. All sorts. I can't see how I'm going to do this. Just thought I'd ask.

A friend had given me these pedals a while ago and was thinking I'd service the bearings. This is when I saw the knurled up plastic on the lock bolt. Tried the 'special' Shimano tool to remove it, no luck. Tried all sorts of wrenches and grips and then the plastic sheared off leaving me with no way of undoing the thread.



Photo: Sheared clean off and flush with pedal body. The remainder of the plastic lock bolt can just be seen inside the pedal body.

I'm guessing that the plastic male thread of the lock bolt has infused/cross-threaded with the metal female pedal body thread. I've heard others' talk of the plastic snapping and/or the 'teeth' of the plastic lock bolt rounding off when using the Shimano tool, leaving no grip to undo the thread.



Photo: (A) is the bit that has sheared off. (B) is the bushing and locknut with a slightly wider or same diameter as the pedal lock body, not allowing it to be pulled through. (C) is what is left of the plastic lock bolt that is stuck inside the pedal body. (These are, of course, the parts from the 'good' pedal.)

I think it's time to admit defeat.

Thanks @RandomTroll
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Last edited by migrantwing; 09-22-14 at 04:21 AM.
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Old 09-22-14, 02:36 PM
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The pedals I've had have access to the outside end of the axle: remove a cap and there's the nut. From a look at the diagrams on Shimano's website I don't see access to the end of these pedals. That raises the question, how did Shimano make these pedals? How did they mount the pedal on the axle? Is the plastic sleeve bolt strong enough to hold it in? Maybe it is, since there isn't that much lateral force on a pedal.

If you can apply enough tension, say by putting the pedal in a vise and pulling on the axle, perhaps you can apply enough torque to loosen it, or the nut on the end. Is there a 'secret' hole in the end of pedal that allows access to the nut?
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Old 09-22-14, 04:25 PM
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There is no cap on these pedals, you are correct in your assumption.

I drilled the pedal today to access the other end of the axle. I then placed a screwdriver in the hole and hammered the axle, hoping to push it through and loosen it. Still no luck. I will have to have another attempt tomorrow and try and access the nut. Maybe, as you mention, if I can get the nut loose I can get the axle/spindle out (along with a handful of balls from the bearings).

I'm guessing that the plastic sleeve holds everything together via the screw threads and compression of sorts, length of components being the basis for the whole thing working, a similar theory as outer cables and cable stops.

I'm determined to succeed with this. Even if it is just to prove to myself that it is possible



Smaller circle is where I have drilled. Larger circle is where I will need to drill another hole. I can then fill the holes with silicone sealant.
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Last edited by migrantwing; 09-22-14 at 05:17 PM.
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Old 05-11-19, 07:03 AM
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The same thing happened to me today when I went to service the pedal, the plastic thing snapped and left it spinning in place and you can throw the pedal pretty much.

Even if you could do magic to pull it out, I doubt I could find a plastic replacement. New pedals (now discontinued but still some left in stock, although silver mostly, no black any more) cost 40-50 eur.

Not a small amount of money to throw away.. ****ing pissed!
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Old 05-11-19, 07:18 AM
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You do realize this is about a 5 year old thread. Roger
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Old 05-11-19, 07:19 AM
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A bit late to mention this but did you try to remove that plastic retainer bolt by turning it in the wrong direction? I have a pair of similar design Shimano pedals (PD-M515) and the drive-side pedal's retainer bolt is left-hand threaded. If you tried to remove those bolts from both pedals by turning them the same way, that may explain the broken one.

Yes, it's only a plastic bolt holding everything together but the design is solid and the pedals are very durable. Unfortunately, at this point I can't offer any easy way to salvage it.
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Old 05-12-19, 11:43 PM
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Originally Posted by rhenning View Post
You do realize this is about a 5 year old thread. Roger
Yes, I can read. And I dont see the point mentioning thread original date.

The same issue happend to me now, and maybe it will happen to somebody else in the future.

Originally Posted by HillRider View Post
A bit late to mention this but did you try to remove that plastic retainer bolt by turning it in the wrong direction? I have a pair of similar design Shimano pedals (PD-M515) and the drive-side pedal's retainer bolt is left-hand threaded. If you tried to remove those bolts from both pedals by turning them the same way, that may explain the broken one.

Yes, it's only a plastic bolt holding everything together but the design is solid and the pedals are very durable. Unfortunately, at this point I can't offer any easy way to salvage it.
Yes, I am aware of different thread directions. Still this does justify probable poor pedal design. It this part was metal it should be stronger. Not to mention the absense of the opening from the other side or other way of removing broken bit.
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