Swapping XT m785 levers

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hainman
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Swapping XT m785 levers

Postby hainman » Wed Dec 19, 2012 15:55 pm

I bought the new brakes from merlin a while ago,they came euro style,which i was fully aware of but never came with any spare olives or anything else,
I was going to try and get used to themthat way round but think i'll probably swap them,Question is do you need to use new inserts/olives when re-connecting the cables??
I have done a few searches but not found a definitive answer...

Sorry if im being a pain..

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Dick Scruttock
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Re: Swapping XT m785 levers

Postby Dick Scruttock » Wed Dec 19, 2012 15:58 pm

Probably should but I would give it a go and see how you get on with the ones that are already fitted. That is unless you need to shorten the hoses.

hainman
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Re: Swapping XT m785 levers

Postby hainman » Wed Dec 19, 2012 16:13 pm

no need to shorten as i ordered 800mm front and 1350mm rear so just a swap round....
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cooldad
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Re: Swapping XT m785 levers

Postby cooldad » Wed Dec 19, 2012 17:01 pm

Nope just undo the caps and swap. Might need a bleed though.
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MajorMantra
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Re: Swapping XT m785 levers

Postby MajorMantra » Wed Dec 19, 2012 17:10 pm

You shouldn't even need to bleed if you're careful.

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oodboo
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Re: Swapping XT m785 levers

Postby oodboo » Wed Dec 19, 2012 18:00 pm

I swapped mine over without replacing olives or bleeding. It's a quick and painless job.
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Greer_
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Re: Swapping XT m785 levers

Postby Greer_ » Wed Dec 19, 2012 19:52 pm

Here's the guide for shortening the hoses, but its the same principle - http://www.shimano.com/publish/content/ ... le.html/02)%20Brake%20Hose%20Trimming.pdf

I'm about to attempt it tonight with Deore M596's.

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Greer_
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Re: Swapping XT m785 levers

Postby Greer_ » Wed Dec 19, 2012 19:54 pm

Don't know what happened to that link - I'll try and find another.

The link keeps breaking for some reason - just google 'shimano hose shortening' and it should be one of the first hits - it's a pdf on shimanos site.

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The Rookie
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Re: Swapping XT m785 levers

Postby The Rookie » Thu Dec 20, 2012 07:51 am

Greer_ wrote:Don't know what happened to that link - I'll try and find another.

The link keeps breaking for some reason

Go back and edit your first post inserting the whole link between the url tags - simples!

To swap hoses without shortening you don't need olives, simple procedure is...
1/ Squeeze the lever a few times (pads in) to move the pistons out to put some excess fluid in the calipers
2/ Swap levers being careful to lose as little fluid as possible (basic precautions)
3/ Push the pistons back using the excess fluid to push any of the air now in the hoses back into the lever and out the operating part of the system
4/ You can then top up the levers by just removing the caps if you want to.

hainman
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Re: Swapping XT m785 levers

Postby hainman » Thu Dec 20, 2012 08:07 am

Thanks for that The Beginner.sounds straight forward enough.

Will need to go get a wee bottle of fluid then just incase....

Better done connected to the bike??As the brakes are not on yet....Xmas pressy
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mikewoods
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Re: Swapping XT m785 levers

Postby mikewoods » Thu Dec 20, 2012 09:35 am

You'll find it easier with the levers on the bars - Calipers dont matter so much but if you do as The Beginner said and move h pistons a touch first it wil be fine - I did that when I shortened the hoses on mine and I didnt need to bleed afterwards - really is a simple job, just an 8mm spanner required.

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The Rookie
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Re: Swapping XT m785 levers

Postby The Rookie » Thu Dec 20, 2012 10:37 am

Connect the levers to the bars, leave the rest loose, leave the pads in for step 1 as it will stop you popping a piston right out...

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Greer_
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Re: Swapping XT m785 levers

Postby Greer_ » Thu Dec 20, 2012 11:49 am

I slightly messed it up last night when I didn't tighten the hose properly and fluid leaked out so a bleed kit is now on its way from here. That's a week i've had off the bike now :( It really is that easy though, just make sure you tighten the hose enough!


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