Question about Shimano Saint Hydraulic Mountain Bike Disc Brake Levers

1 Answer

Bleeding hydraulic brake systems

I need to find out how to bleed hydraulic brake systems on mountain bikes so as to be able to service and maintain my own on the move

Posted by on

Ad

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Governor:

    An expert whose answer got voted for 20 times.

    Scholar:

    An expert who has written 20 answers of more than 400 characters.

  • Expert
  • 110 Answers

Hello there;
you should be able to bleed the brakes just like a car brake system with the bleeder valve on the barake caliper make sure the reservoir is full before you start the proses and use the brake lever to pump pressure into caliper and crack the bleeder valve until you get all the air out of the lines you may have to repeat couple of times to ensure proper brake pressure

Posted on May 29, 2010

Testimonial: "good & helpful. thank you"

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

I have an 01 GMC Jimmy 4.3L 4WD & we are trying to bleed the brakes but the scanner says my vehicle is going 3MPH so we manually bleed the brakes but the pedals still easily is pushed to the floor.


Bad master cylinder . What are you using a scan tool for ? No need Unless your Installing a new Electro-Hydraulic Control Unit (EHCU) or new Brake Pressure Modulator Valve (BPMV).
Hydraulic Brake System Bleeding (Manual)
Caution: Refer to Brake Fluid Irritant Caution in the Preface section.
Notice: Refer to Brake Fluid Effects on Paint and Electrical Components Notice in the Preface section.
Place a clean shop cloth beneath the brake master cylinder to prevent brake fluid spills.
With the ignition OFF and the brakes cool, apply the brakes 3-5 times, or until the brake pedal effort increases significantly, in order to deplete the brake booster power reserve.
If you have performed a brake master cylinder bench bleeding on this vehicle, or if you disconnected the brake pipes from the master cylinder, you must perform the following steps:
3.1. Ensure that the brake master cylinder reservoir is full to the maximum-fill level. If necessary add GM approved brake fluid from a clean, sealed brake fluid container. Refer to Fluid and Lubricant Recommendations.
If removal of the reservoir cap and diaphragm is necessary, clean the outside of the reservoir on and around the cap prior to removal.
3.2. With the rear brake pipe installed securely to the master cylinder, loosen and separate the front brake pipe from the front port of the brake master cylinder.
3.3. Allow a small amount of brake fluid to gravity bleed from the open port of the master cylinder.
3.4. Reconnect the brake pipe to the master cylinder port and tighten securely.
3.5. Have an assistant slowly depress the brake pedal fully and maintain steady pressure on the pedal.
3.6. Loosen the same brake pipe to purge air from the open port of the master cylinder.
3.7. Tighten the brake pipe, then have the assistant slowly release the brake pedal.
3.8. Wait 15 seconds, then repeat steps 3.3-3.7 until all air is purged from the same port of the master cylinder.
3.9. With the front brake pipe installed securely to the master cylinder, after all air has been purged from the front port of the master cylinder, loosen and separate the rear brake pipe from the master cylinder, then repeat steps 3.3-3.8.
3.10. After completing the final master cylinder port bleeding procedure, ensure that both of the brake pipe-to-master cylinder fittings are properly tightened.
Fill the brake master cylinder reservoir with GM approved brake fluid from a clean, sealed brake fluid container. Ensure that the brake master cylinder reservoir remains at least half-full during this bleeding procedure. Add fluid as needed to maintain the proper level.
Clean the outside of the reservoir on and around the reservoir cap prior to removing the cap and diaphragm.
Install a proper box-end wrench onto the RIGHT REAR wheel hydraulic circuit bleeder valve.
Install a transparent hose over the end of the bleeder valve.
Submerge the open end of the transparent hose into a transparent container partially filled with GM approved brake fluid from a clean, sealed brake fluid container.
Have an assistant slowly depress the brake pedal fully and maintain steady pressure on the pedal.
Loosen the bleeder valve to purge air from the wheel hydraulic circuit.
Tighten the bleeder valve, then have the assistant slowly release the brake pedal.
Wait 15 seconds, then repeat steps 8-10 until all air is purged from the same wheel hydraulic circuit.
With the right rear wheel hydraulic circuit bleeder valve tightened securely, after all air has been purged from the right rear hydraulic circuit install a proper box-end wrench onto the LEFT REAR wheel hydraulic circuit bleeder valve.
Install a transparent hose over the end of the bleeder valve, then repeat steps 7-11.
With the left rear wheel hydraulic circuit bleeder valve tightened securely, after all air purged from the left rear hydraulic circuit, install a proper box-end wrench onto the RIGHT FRONT wheel hydraulic circuit bleeder valve.
Install a transparent hose over the end of the bleeder valve, then repeat steps 7-11.
With the right front wheel hydraulic circuit bleeder valve tightened securely, after all air has been purged from the right front hydraulic circuit, install a proper box-end wrench onto the LEFT FRONT wheel hydraulic circuit bleeder valve.
Install a transparent hose over the end of the bleeder valve, then repeat steps 7-11.
After completing the final wheel hydraulic circuit bleeding procedure, ensure that each of the 4 wheel hydraulic circuit bleeder valves are properly tightened.
Fill the brake master cylinder reservoir to the maximum-fill level with GM approved brake fluid from a clean, sealed brake fluid container.
Slowly depress and release the brake pedal. Observe the feel of the brake pedal.
If the brake pedal feels spongy, repeat the bleeding procedure again. If the brake pedal still feels spongy after repeating the bleeding procedure, perform the following steps:
21.1. Inspect the brake system for external leaks. Refer to Brake System External Leak Inspection.
21.2. Pressure bleed the hydraulic brake system in order to purge any air that may still be trapped in the system.
Turn the ignition key ON, with the engine OFF. Check to see if the brake system warning lamp remains illuminated.
Important: If the brake system warning lamp remains illuminated, DO NOT allow the vehicle to be driven until it is diagnosed and repaired.
If the brake system warning lamp remains illuminated, refer to Symptoms - Hydraulic Brakes

Feb 26, 2017 | GMC Cars & Trucks

1 Answer

Replaced everything in brake system including brake booster,calipers, pads, rotars still won't come to a complete stop It "coasts". To a stop no matter how hard I press on the brake.


Does it feel spongy when you press on pedal ? Sounds a lot like air in the hydraulic lines. Bleed the entire system again and check for leaks in all the lines. Maybe the bleed screws are loose.

Oct 05, 2016 | 1998 Mercury Mountaineer

2 Answers

WHat brake fluid do I use in a Carreras Vulcan mountain bike


101 Bike Maintenance Tips
Your bicycle doesn't run on leg power alone. It also needs a little lube, a lotta­ love, and a good ­listen. You may not know every remedy your bike needs to live a long life, but you can gain enough wisdom along the way to keep it in tip-top shape and out of the shop. This collection of mostly timeless advice (until advances in bicycle technology make some of it obsolete) will guide you through the role of primary caregiver-so you can leave the tough stuff to the professionals.
http://www.bicycling.com/maintenance/bicycle-maintenance/101-bike-maintenance-tips

May 26, 2015 | Mountain Cycling

1 Answer

How to bleed brakes


You'll need a bleed kit and the appropriate brake fluid. Here's a video:

Mar 31, 2014 | Mongoose 2008 Teocali Comp Mountain Bike

1 Answer

Do you bleed dual control brakes the same as regular hydraulic disc brakes?


only if you have a resevoir with that fluid in it there should be a bleeder valve in the caliper

May 01, 2012 | Shimano Xtr Mountain Bike Dual Control...

1 Answer

Clutch lever feels like its disconnected,


I will bet your bike has a hydraulic clutch and there is air in the hydraulic line. Bleed the air the same way as bleeding hydraulic brakes. If you bike has a master cylinder AND a slave cylinder, bleed the master cylinder first.

Jul 01, 2011 | Yamaha FJR 1300 Motorcycles

1 Answer

My brakes leak fluid pretty sure at the brake lever end.They're about 5 yrs old but hardly used.Is there a servicing kit i can buy o rings and so on?


I will assume you have the hydraulic brakes and that is the fluid you are referring too.

If you have never done any hydraulic maintenance you will need a number of parts and tools to fix a leak, especially at the lever. The best solution would be too drop the bike off with your local mechanic/ bike shop and have them properly fix the system. After 5 years your lines and seals are most likely cracking and you need to replace the housing and seals at minimum + rebleed the brakes with the proper oil. Either way to tell you exactly what parts you need someone needs to see the bike. Take it into the shop as suggested already so they can at least tell you which seal kit and which bleed kit you need as well as the proper oil. you will need to buy all this from the shop anyway, ask them the cost difference between buying the parts and kits to do yourself and them doing the work for you.

Apr 16, 2011 | Shimano Xtr Mountain Bike Dual Control...

1 Answer

How to bleed the brakes


Bleeding the ABS System

Print


NOTE
This procedure requires the use of a scan tool.


NOTE
Performing the SYSTEM BLEED FUNCTION on the diagnostic tool drives trapped air from the hydraulic control unit (HCU). Subsequent bleeding removes the air from the brake hydraulic system to the bleeder screws.


NOTE
The engine must be running to provide adequate voltage to the HCU module during the anti-lock control portion of the system bleed.

1. Connect the diagnostic tool.

2. Start the engine and depress the brake pedal to half of the full travel position.

3. Access FUNCTION TEST mode and press the trigger to run the SYSTEM BLEED FUNCTION.

4. Manually bleed the brake hydraulic system.

5. Repeat the procedure performing a total of two diagnostic tool cycles and two manual bleed cycles. The bleed procedure is complete.


Hope helps.

Nov 01, 2010 | Ford Laser Cars & Trucks

Not finding what you are looking for?
Shimano Saint Hydraulic Mountain Bike Disc Brake Levers Logo

Related Topics:

379 people viewed this question

Ask a Question

Usually answered in minutes!

Top Shimano Cycling Experts

Michial Gueffroy

Level 3 Expert

1138 Answers

john h

Level 3 Expert

15314 Answers

Paul Bade

Level 3 Expert

1606 Answers

Are you a Shimano Cycling Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...