Author Topic: How to Change a Spring  (Read 11644 times)

Offline Jason

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How to Change a Spring
« on: April 05, 2009, 09:14:49 PM »
Recently a few people have asked me what the easiest way to change the spring on a set of bocks so i thought it was time for a How To

The problem is changing the spring without removing the kneebar/Cuffs (as it ruins the settings if you do)

You will need either two 13mm spanners and two 10mm spanners or one of each size spanner and a small socket set with 13mm and 10mm sockets

So first undo the big bolt at the top of the hoof as shown in pic below
« Last Edit: April 06, 2009, 07:36:24 PM by Jason »

Offline Jason

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Re: How to Change a Spring
« Reply #1 on: April 05, 2009, 09:15:47 PM »
This allows you to swing the whole spring back so you can access the lower nut on the top bracket without removing the Kneebar/Cuff (top pic)
Now undo the two nuts and bolts that attach the spring to the top bracket (lower pic)

Offline Jason

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Re: How to Change a Spring
« Reply #2 on: April 05, 2009, 09:16:40 PM »
You should now be left with the spring with a hoof attached as below if you are just swapping the springs side for side (to even wear) this is as far as you need to go as if you leave the hoof on it also swaps the hoof rubbers as well and evens up the wear on them

I tend to swap my springs round every 2 months or so as we all have a dominant foot and so wear one spring more than the other I have found that swapping them makes them last longer

Offline Jason

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Re: How to Change a Spring
« Reply #3 on: April 05, 2009, 09:18:04 PM »
If you are replacing the spring completely you now need to remove the hoof
There are two ways to do this so first I'll show the way that keeps the top bearing in place (handy if you have glued your bearings in place)

Undo the bolt throught the bottom hoof bearing (first pic)
This is where you can do it in two ways

A)--This should allow you to move the hoof away from the spring so you can get to the nuts
      that hold the lower bracket in place (Middle pic)
      (If it is to tight to do this you may need to remove the white packer at the top hoof
      bearing to loosen it)
      Now you can withdraw the spring without disturbing the bearing (lower pic)

B)--Alternatively if you don't mind removing the top hoof bearing you don't need to remove
     the bottom bracket but if you are changing the spring it will have to come off anyway


Offline Jason

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Re: How to Change a Spring
« Reply #4 on: April 05, 2009, 09:18:40 PM »
Assemly is the reverse of the above but I will run throught it anyway

Slide the spring into the hoof section and attach the lower bracket with the two bolts, nuts and spring washers

Offline Jason

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Re: How to Change a Spring
« Reply #5 on: April 05, 2009, 09:19:20 PM »
Attach the lower bracket to the hoof with the locking nut, bolt and two washers

Offline Jason

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Re: How to Change a Spring
« Reply #6 on: April 05, 2009, 09:20:08 PM »
Attach the top of the spring to the top bracket with the two bolts, nuts and spring washers

Offline Jason

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Re: How to Change a Spring
« Reply #7 on: April 05, 2009, 09:20:42 PM »
Swing the spring back down and attach the top hoof bearing with locknut, bolt and four washers
Make sure you put the washers in the right places as shown in the pic

Offline Jason

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Re: How to Change a Spring
« Reply #8 on: April 05, 2009, 09:21:16 PM »
Thats it folks just don't forget to replace the white packers if you took them out

Jason  :Hoofies2: :CGEEK:

Offline sprog

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Re: How to Change a Spring
« Reply #9 on: April 05, 2009, 11:16:50 PM »
Damn, I was meant to do one of these when I switched my raptors over to T-Rex's on Wednesday... was so excited I forgot :(

Just to add though Jason, you don't need to take the hoof off, just undo the bolt holding on the lower bracket, then the 2 smaller bolts holding that to the spring. Then undo the 2 smaller bolts holding the spring to the bracket at the top, slide down a little and it will come out the top bracket. Then just slide it up and they'll come out the hoof section without having to take the hoof off. You'll end up with something that looks like this.
« Last Edit: April 05, 2009, 11:45:35 PM by sprog »

Offline Jason

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Re: How to Change a Spring
« Reply #10 on: April 05, 2009, 11:39:12 PM »
Hi Sprog

Yes I did it like that a couple of times mate and I agree it is easier to remove the spring that way but I found that the time I spent trying to get the spring washer and locknut back on to the lower bolt on the top bracket without dropping them inside the frame or on the floor it was quicker to undo the one bolt holding the hoof on and get easy access to that one  :Claugh: (size XL fingers don't help either  :Cbiggrin:) and as most of the time I am rotating the spring/hoof to keep them even I tend to do it that way now

I did change Clives 7's over once and the top bracket and the slot in the frame seem to be deeper and it is an easy job to get the nut on so I can see why you do it that way but the PJ ones are a total pain unless you have small fingers

Jason  :Hoofies2: :CGEEK:

Offline sprog

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Re: How to Change a Spring
« Reply #11 on: April 05, 2009, 11:59:43 PM »
Ah fair enough, whatever works best for whoever then :)
I've got long thin fingers which is probably why I had no problems dropping nuts inside the frames :Claugh:

Offline Callum

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Re: How to Change a Spring
« Reply #12 on: April 06, 2009, 11:47:39 AM »
that top bolt thats on the first piuc is realy tight on myne struglling to get it off  :Cswoon:

Offline sprog

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Re: How to Change a Spring
« Reply #13 on: April 06, 2009, 02:33:11 PM »
Get a ratcheting spanner, it makes life a lot easier :)
« Last Edit: April 06, 2009, 03:22:21 PM by sprog »

Offline Locky

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Re: How to Change a Spring
« Reply #14 on: April 06, 2009, 05:17:18 PM »
Get Sprog to do it. Much easier.

Offline Jason

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Re: How to Change a Spring
« Reply #15 on: April 06, 2009, 07:50:49 PM »
Yep Callum they can be tight the first time you undo them just make sure your turning it the right way  :Claugh:

Jason  :Hoofies2: :CGEEK:

Offline sprog

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Re: How to Change a Spring
« Reply #16 on: April 06, 2009, 07:53:08 PM »
Yep Callum they can be tight the first time you undo them just make sure your turning it the right way  :Claugh:

Jason  :Hoofies2: :CGEEK:
No, he's gotta make sure he's turning them the LEFT way! :Claugh:

Offline lynch

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Re: How to Change a Spring
« Reply #17 on: April 06, 2009, 08:08:50 PM »
i will be doing this in 2day when my new springs come

Offline liumingzhu

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Re: How to Change a Spring
« Reply #18 on: October 21, 2010, 03:42:17 AM »
You should now be left with the spring with a hoof attached as below if you are just swapping the springs side for side (to even wear) this is as far as you need to go as if you leave the hoof on it also swaps the hoof rubbers as well and evens up the wear on them

I tend to swap my springs round every 2 months or so as we all have a dominant foot and so wear one spring more than the other I have found that swapping them makes them last longer

 
« Last Edit: October 21, 2010, 10:36:21 AM by webmaster »

Offline Jason

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Re: How to Change a Spring
« Reply #19 on: October 21, 2010, 07:21:10 PM »
Yep thats what I said liumingzhu  :Claugh:

The time you leave before you swap them depends on how much you use them though

Jason  :Hoofies2: :CGEEK:

Offline spring_loaded

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Re: How to Change a Spring
« Reply #20 on: March 17, 2012, 02:30:44 PM »
Where can i get new springs from?

Offline Jason

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Re: How to Change a Spring
« Reply #21 on: March 17, 2012, 06:47:57 PM »
Projump sell them mate

Jason  :Hoofies2: :CGEEK: