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bike_dummie

2011 Hs11 & Hs33 Bleed Information.

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Lever top up (which is what will do the job 95% of the time, since air naturally rises to the lever):

Move the lever so your lever blade is facing the sky, and ideally orientate the bike so the highest point of the piston is the bleed port (see pic).

lever.jpg

Take plastic / rubber caps off the lever body and hose.

Remove little plastic bung from the lever - it has a 2.5mm allen key fitting for ease of removal but it is NOT threaded.

Unscrew barbed fitting from lever body (8mm spanner) while looking down the hole you just opened - you will see a black O ring move past the hole. At this point there should be 2 threads on the barbed fitting showing.

large_hsbleed1.jpg

large_hsbleed2.jpg

Plug an empty syringe into the hole, should be the right size to push in perfectly.

Fill syringe about half way with your fluid of choice.

Pull the lever back to the bars slowly, if there is air in the system you will see bubbles coming up through the fluid in the syringe.

Let the lever return slowly, this will replace any air with fluid.

Repeat the above two steps a few times, tapping the lever body in between to release any trapped air.

Remove syringe from lever body (put something over the end to create a vacuum or you will pour fluid everywhere!).

Screw barbed fitting back into the lever body, use some tissue / a rag to catch any overspill from the bleed port. The barbed fitting does NOT need to be tight as on previous versions of the brake! The O Ring you saw moving past the hole in a previous step is what does the sealing, NOT the face of the barbed fitting mating with the lever body. If you overtighten it, you will crack the lever body.

Push the little plug back in, by hand is fine, it doesn't provide any function other than stopping crud getting into the bleed port.

Test the brake by pulling the lever slowly - the pads should move pretty much as soon as you start pulling the lever. If they don't, read over the instructions below as you may need to do a full bleed instead.

Clip all the plastic bits back on and you're done.

Full bleed:

Unscrew the blanking plug from the slave cylinder.

2/3rds fill a syringe / bleed pipe and screw it into the hole you just opened.

Move the lever so your lever blade is facing the sky, and ideally orientate the bike so the highest point of the piston is the bleed port (see pic).

lever.jpg

Take plastic / rubber caps off the lever body and hose.

Remove little plastic bung from the lever - it has a 2.5mm allen key fitting for ease of removal but it is NOT threaded.

Unscrew barbed fitting from lever body (8mm spanner) while looking down the hole you just opened - you will see a black O ring move past the hole. At this point there should be 2 threads on the barbed fitting showing.

large_hsbleed1.jpg

large_hsbleed2.jpg

Plug an empty and open (no plunger) syringe into the hole, should be the right size to push in perfectly.

Push the bottom syringe plunger slowly, if there is air in the system you will see bubbles coming up into the top (open) syringe. The top syringe will fill up.

Optional step: Pull the bottom syringe plunger back, sucking fluid back through the system (but not so far that the top syringe runs out), then repeat the above step while tapping the brake calipers and lever body.

With the top syringe just over half full, and the bottom one nearly empty, pull the lever back to the bars slowly. If there is air left in the system you will see bubbles coming up through the open top syringe.

Let the lever return slowly, this will replace any air with fluid.

Repeat the above two steps a few times, tapping the lever body in between to release any trapped air.

Remove syringe from lever body (put something over the end to create a vacuum or you will pour fluid everywhere!).

Screw barbed fitting back into the lever body, use some tissue / a rag to catch any overspill from the bleed port. The barbed fitting does NOT need to be tight as on previous versions of the brake! The O Ring you saw moving past the hole in a previous step is what does the sealing, NOT the face of the barbed fitting mating with the lever body. If you overtighten it, you will crack the lever body.

Push the little plug back in, by hand is fine, it doesn't provide any function other than stopping crud getting into the bleed port.

Remove bottom syringe/pipe from the slave cylinder (you won't lose fluid / let air in since the system will provide a vacuum) and screw the blanking plug back in.

Test the brake by pulling the lever slowly - the pads should move pretty much as soon as you start pulling the lever. If they don't, read over the instructions again as you may have done something incorrectly.

Clip all the plastic bits back onto the lever and you're done.

As you can see, it's just as easy as the previous brakes (you could argue it's even easier). Hope that helps!

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