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- Pag. 14. -

5.2

Replacement of brake pads

When to change ?
Before each ride, check the wear pattern of the pads (both front and rear).
The back plate of the brake pad should not touch the rotor.
Replace the pads if there is not enough material left,
or if high frequency noise occurs during braking.

1. To replace brake pads it is necessary to take the

wheel out of the frame / fork.

2. Use a 3 mm. Allen-key to unscrew the brake

pad fixing bolt of the caliper.

Unscrew the small screw only (3 mm. Allen-
key).
DON’T LOOSEN THE 2 BIGGER SCREWS
(5 MM. ALLEN-KEY) BECAUSE IN THAT CASE
THE WHOLE CALIPER WILL COME APART
AND LOOSE BRAKE FLUID !!!

3. Then, remove the pads.

4. Turn the adjust knob of the master cylinder anti-

clockwise. At least 10 full turns.

5. Using a brush, clean the inner cavity of the

pistons to eliminate any deposits and trace of
dirt.

6. Insert two new pads inside of the caliper, put the

brake pad fixing bolt back into the caliper and
tighten it to a torque of 4 Nm.

7. Turn the adjust knob of the master cylinder

clockwise until you see there’s no clearance
between brake pads and rotor.

8. Turn the adjust knob of the master cylinder

anti-clockwise and pull the brake lever until you
find the best braking position on your hand.

Note:

Do NOT use MPH brake pads “model year 2000” (2 holes in each pad).
These pads do not fit into the MPH-2 (model year 2001) and MPH-3 (model year 2002) calipers.

Warnings:

-  If the bolt is not tightened well, it

can cause a hazardous situation.

-  Do make sure the bolt goes

through the hole of each pad.

Loosen

DO NOT

LOOSEN

DO NOT

LOOSEN

Summary of Contents for MPH-3 - MODEL YEAR 2002

Page 1: ...01 Fixation calipers and rotors International Standard Fully hydraulic disc brake system 2 piston closed system Brake levers with reach adjusters Pressure point brake pad clearance adjustable on the f...

Page 2: ...bly of caliper Post Mount Manitou forks 7 2 5 Assembly of caliper International Standard 8 3 Adjustment 9 3 1 Pad clearance adjustment 9 3 2 Lever reach adjustment 10 3 3 Angle of the brake fluid rese...

Page 3: ...not using this system for any downhill competition It is particularly suited for cross country use Giant advises to have your wheels laced by an expert mechanic Improper tightening of the spoke nippl...

Page 4: ...of new bolts have been coated with blue material that prevents that bolts come loose Always use Loctite TM Primer 7649 and Loctite TM blue Removable Threadlock 242 or similar material on thread of the...

Page 5: ...ever assembly onto the handlebar Set the brake lever to the right position Tighten the fixing bolt with a 4 mm Allen key Recommended tightening torque 6 Nm Blow compressed air into the grip through a...

Page 6: ...e caliper of brake lever For maximum efficiency of the system it is very important that the hoses are without kinks and have the correct length Changing the length of a hose should be done by an autho...

Page 7: ...se a 5 mm Allen key to tighten the M6 fixing bolts Recommended tightening torque 9 Nm 4 Now you can release the brake lever Pull the brake lever to see if the brake pads are actuated well If the proce...

Page 8: ...the M6 fixing bolts Note the lower bolt for the front caliper is shorter Pull the brake lever to see if the brake pads are actuated well If the procedure has been followed well the caliper and brake...

Page 9: ...bigger brake lever stroke required Due to normal pad wear during riding the clearance between the pads and rotor will increase So it s important to check the adjustment before and during each ride Bra...

Page 10: ...3 3 Angle of the brake fluid reservoir The function of the small screw see picture close to the lever blade is setting the angle of the master cylinder Use a 2 mm Allen key to loosen the screw and adj...

Page 11: ...olts 4 mm Allen key 6 Nm Caliper fixing bolts 5 mm Allen key 9 Nm Bleeder 10 mm wrench 8 Nm Brake pad fixing bolt 3 mm Allen key 4 Nm Lock screw brake fluid reservoir 3 mm Allen key 5 Nm Lock screw br...

Page 12: ...tjob and some plastic parts on the bike is extremely hazardous in case of contact with eyes or skin Use protective gloves when working with brake fluid We recommend to replace the brake fluid in the s...

Page 13: ...e bolts may cause that parts come off a loose bleeder may cause the braking system to leak This can lead to severe injury or death Loctite TM Always use Loctite TM Primer 7649 and Loctite TM blue Remo...

Page 14: ...aster cylinder anti clockwise At least 10 full turns 5 Using a brush clean the inner cavity of the pistons to eliminate any deposits and trace of dirt 6 Insert two new pads inside of the caliper put t...

Page 15: ...with brake fluid Leakage of brake fluid on brake pads or rotor will ruin these parts 1 Turn the adjustment knob of the fluid reservoir on the brake lever anti clockwise all the way to create max volum...

Page 16: ...example after shortening a hose or switching front and rear brake from one side from the handlebar to the other skip step 6 to 10 and continue with step 11 Otherwise if there is no or almost no brake...

Page 17: ...will take approx 5 minutes but in most cases it s not necessary because there is still brake fluid in the hoses levers and or calipers So in those cases you can skip these steps and continue from thi...

Page 18: ...wise in and anti clockwise out a few times to push the last bits of air out of the reservoir Turn the knob all the way in and out approx 10 full turns 14 If no air bubbles come up through the brake fl...

Page 19: ...ceeding and to take out the wheels F If the bleeder is not sufficiently tightened when using the disc brake brake fluid may leak on the rotor causing loss of friction between brake pads and rotor This...

Page 20: ...be heated to 150 C or more Then the brake pads will wear out very quickly If the pads are worn the brake force is decreased even if the brake lever is pulled completely to the handlebars see illustrat...

Page 21: ...at lead to longer braking distance How to change See the instruction Mounting the brake system on the bicycle Remarks Only use MPH genuine parts Replace the six rotor fixing screws as well See Mountin...

Page 22: ...to change This should be done by your authorised Giant dealer Remarks Only use MPH genuine parts Use washers 0 25 mm thickness to adjust brake pads parallel to rotors and to set the rotors exactly in...

Page 23: ...eft brake lever Small parts are the same but the way these small parts are assembled is different Parts Brake fluid When to change After replacement of brake lever or calipers or hose or bleeder Lack...

Page 24: ...sed Giant dealer Remarks 1 Only use MPH genuine parts 2 Use two copper washers at both ends Parts Bleeder When to change 1 Bleeder loosened and tightened more than 5 times 2 Can t get air out of syste...

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