Author Topic: Re: Support Tube Replacement Tutorial  (Read 16982 times)

Offline Jason

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Re: Support Tube Replacement Tutorial
« on: February 15, 2008, 10:30:23 PM »
I broke a support tube the other day (10 months hard bocking so not bad)

I have heard that a few people have had trouble fitting these and as it only take a short while if you know how I thought I would do a tutorial
Before we start I have demonstrated this on a frame without a spring on it (Bocks were at work) but it works the same with the spring (I put it back on the ones at work

To start with you will need

2 10mm spanners
2 13mm spanners
1 set of external circlip pliers (you can do it without but it is hard work and they are fairly cheap)


Pic 1
First you will need to loosen nut and bolt (A) don't remove just loosen
Next you must remove nuts (B) and (C) you may want to fix nut (D) in place with some tape to keep the adjustment right
Do this on both sides

Offline Jason

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Re: Support Tube Replacement Tutorial
« Reply #1 on: February 15, 2008, 10:31:15 PM »
Now you need to release the circlip very easy with the circlip pliers ( I bought a pair of cheap internal/external ones for about £5 a few years ago)
It is possible to do this with 2 small screwdrivers but hard and you risk damaging the circlip and stabbing yourself in the hand

You only have to do this on one side
2 pic to show how it works

Offline Jason

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Re: Support Tube Replacement Tutorial
« Reply #2 on: February 15, 2008, 10:31:50 PM »
Next you just pull back on the upright and footplate and the threaded rods slide out of the holes in the support tube

Dead easy but getting them back in when you fit the new one 3 hands  :biggrin: so enlist a mate

Offline Jason

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Re: Support Tube Replacement Tutorial
« Reply #3 on: February 15, 2008, 10:33:22 PM »
Now remove the loosened circlip and just slide the support tube out (may be a little stiff I used pliers)

To install the new one just reverse the above instructions and make sure you tighten all nuts (I forgot the big one at the back not a good idea)

Hope this saves someone  a bit of grief and time

Jason  :Hoofies2:

Offline webmaster

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Re: Support Tube Replacement Tutorial
« Reply #4 on: February 15, 2008, 10:56:30 PM »
A fantastic tutorial Jason, well done :)

Dark Knight

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Re: Support Tube Replacement Tutorial
« Reply #5 on: February 15, 2008, 11:23:07 PM »
Couldn't you use your foot as a third hand  :biggrin:
« Last Edit: February 15, 2008, 11:25:10 PM by Dark Knight »

Offline Sx Nutta

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Re: Support Tube Replacement Tutorial
« Reply #6 on: February 15, 2008, 11:46:06 PM »
I just managed to tease the circlip up and off the support tube, and back on the same way too  :thumbs:


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Offline Nero

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Re: Support Tube Replacement Tutorial
« Reply #7 on: February 16, 2008, 11:58:56 AM »
wicked tutorial there jason, few days late for me but still great.
i found them support bars quite easy to get back in, i sort of pulled the top out with the back of my hand while pushing the ends in with my thumb.
it straightened them just enough to slide in.i also completely removed nut and bolt a though

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Offline hybrid_hex

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Re: Support Tube Replacement Tutorial
« Reply #8 on: February 16, 2008, 04:14:44 PM »
I may need to change mine before long, they have a real big bent at the top, and I wouldnt be supprised if they break before long.

Also, then the entire top of my bock moves  :-\ I'm a little worried, theyve done it for ages, the calf support and knee bar all move forwards, pivoting around somewhere in the calf pad area, everything is tight, but it still moves!

Dark Knight

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Re: Support Tube Replacement Tutorial
« Reply #9 on: February 16, 2008, 05:55:20 PM »
I've just pull a plate completely apart ( need some part off it )
That  :censored:  circlip  :banghead: if you don't have the right tool for the job it's just about impossible  >:(
But where's there a screwdriver there's a way  ;D

Offline Nero

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Re: Support Tube Replacement Tutorial
« Reply #10 on: February 16, 2008, 06:56:10 PM »
lol, i paid £8 for some crclip pliers from halfords, these were initially the madest tool ive ever seen, pliers that open when you apply preasure

“Life is not a journey to the grave with intentions of arriving safely in a pretty well-preserved body, but rather to skid in broadside, thoroughly used up, totally worn out and loudly proclaiming ... WOW! What a ride!”

Offline Jason

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Re: Support Tube Replacement Tutorial
« Reply #11 on: February 16, 2008, 10:22:47 PM »
I may need to change mine before long, they have a real big bent at the top, and I wouldnt be supprised if they break before long.

Also, then the entire top of my bock moves  :-\ I'm a little worried, theyve done it for ages, the calf support and knee bar all move forwards, pivoting around somewhere in the calf pad area, everything is tight, but it still moves!

hybrid_hex It sounds like the 8 pop rivets inside the plates that hold the knee bar have sheared if you have access to a pop rivet gun (you must use them at work a lot of aircraft bits are held on with them  :biggrin:) it should be very easy to replace them

Just undo the 4 hex head bolts that hold the kneebar on and pull them out that will release the calf pad, the 2 clamps (plastic shapes) and the kneebar then you should be able to see the rivets 4 on each side

I don't know what size they are but most car spares and hardware stores stock a wide range
If you have to drill them out make sure you get the right size drill as they don't work well if you use to bigger drill

Get them done soon because if they all shear you could bend the back frame by banging the bolts against it when you bounce

Jason  :Hoofies2:

Offline hybrid_hex

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Re: Support Tube Replacement Tutorial
« Reply #12 on: February 17, 2008, 09:16:24 AM »
Cheers Jason, sounds like a plan, Im working nights as of tomorow, so Ill bring them into the hanger and have a look, Got all the tools you could imagine available, and if we dot have them, then we use a hammer and a screwdrive, its amazing how much they will fix!! (its a good excuse to go for a bounce at work aswell!!  :banana: )

Offline Jason

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Re: Support Tube Replacement Tutorial
« Reply #13 on: February 17, 2008, 08:05:33 PM »
Always glad to be of help to the forces got to keep you fighting fit or they might enlist ME  :haha: :thumbs:

Jason  :Hoofies2:

Offline hybrid_hex

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Re: Support Tube Replacement Tutorial
« Reply #14 on: February 18, 2008, 07:39:52 PM »
If they did enlist you then you would be kept under lock and key inventing things like Leonard de Quirm!  :thumbs:

Offline Sx Nutta

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Re: Support Tube Replacement Tutorial
« Reply #15 on: February 18, 2008, 09:46:04 PM »
They wouldn't want me, lol I may be too much to handle!!  :biggrin: :banana:


Fire is good!
But Fire is better when you are spinning or breathing it!
Burn Scars are for life!
Chicks dig dudes with cool burn scars!

Offline hybrid_hex

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Re: Support Tube Replacement Tutorial
« Reply #16 on: February 18, 2008, 09:49:18 PM »
The army would have you, but you would never join, as you would have to cut your hair!!!  :thumbs:

Offline carlgreen

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Re: Support Tube Replacement Tutorial
« Reply #17 on: February 18, 2008, 09:54:36 PM »
i would love to join the army but i cant as i have a heart condition :(

but its great tht u do it hex  :thumbs:




Offline hybrid_hex

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Re: Support Tube Replacement Tutorial
« Reply #18 on: February 18, 2008, 09:58:55 PM »
wel, i do the airforce, but they try to make us beleive tha we are all one big happy family . . . . . :biggrin:

Offline Sx Nutta

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Re: Support Tube Replacement Tutorial
« Reply #19 on: February 18, 2008, 10:06:56 PM »
I am from the bocker's army, lol call me Hawkeye!!  :banana:


Fire is good!
But Fire is better when you are spinning or breathing it!
Burn Scars are for life!
Chicks dig dudes with cool burn scars!

Offline hybrid_hex

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Re: Support Tube Replacement Tutorial
« Reply #20 on: February 18, 2008, 10:09:39 PM »
why hawkeye??

Offline Sx Nutta

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Re: Support Tube Replacement Tutorial
« Reply #21 on: February 18, 2008, 10:11:14 PM »
i got bored, and quite good, at spotting things from a good distance, while wearing glasses!!  :thumbs:


Fire is good!
But Fire is better when you are spinning or breathing it!
Burn Scars are for life!
Chicks dig dudes with cool burn scars!

Offline hybrid_hex

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Re: Support Tube Replacement Tutorial
« Reply #22 on: February 18, 2008, 10:12:51 PM »
Ah! unfair advantage!!  :nana:

Offline Sx Nutta

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Re: Support Tube Replacement Tutorial
« Reply #23 on: February 18, 2008, 10:21:43 PM »
its a fair advantage


Fire is good!
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Burn Scars are for life!
Chicks dig dudes with cool burn scars!

Offline hybrid_hex

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Re: Support Tube Replacement Tutorial
« Reply #24 on: February 18, 2008, 10:24:20 PM »
hehe! :thumbs: