Mechanical Disc Brakes - Orbea Avant Technical Manual

Inspection
with the handlebar. If the lever touches the handlebar, the system should be purged. This action
Check that there is no oil, grease or other type of dirt on the disc. The disc is an essential part
of the braking system; therefore, it must be kept clean. Remove the brake pads from the cali-
pers when you are going to deep-clean. Do not use cleansers, degreasers or solvents to clean
the disc. Only use isopropyl alcohol.
Once a month, make sure that the disc brakes are not worn. If the brake pads have a thickness
less than 1mm, they should be changed. You must also check that the brake pads are correctly
positioned at a distance between 0.25 and 0.75mm from the disc when the brakes are not
applied. Turn the wheel. When the levers are not depressed, the brake pads should touch the
discs as little as possible.
The torque for disc brake bolts is:
Caliper mount bolts: 11.5-12.5Nm
Caliper bridge bolt: 11.5-12.5Nm
Disc screws: 5-6Nm
Handlebar Master Cylinder Clamp Screw: 3-4Nm
Check there are no crimps or leaks in the hose. Replace any hydraulic part that does not pass
by an authorized dealer.
Adjustment
Adjusting brake lever reach
- Locate the reach adjustment screw between the lever and the handlebar, near the lever pivot.
- To increase the reach, turn the screw clockwise. To reduce the reach, turn the screw counter-
clockwise.
Aligning the brake with the disc
- Loosen the caliper mount bolt.
inspection section.
Removing brake pads
- Remove the wheel.
Removing the wheel
Removing the wheel with disc brakes does not require you to take apart the braking system.
Carefully slide the disc out of the brake.
When you are going to replace the wheel, carefully guide the disc between the brake pads. If
you press the edge of the disc against the pads, they can crack or be damaged and need to be
replaced.
Lubrication
Lubricate the pivots every three months with synthetic lubricant, as you would with the chain.
The brake pads do not need to be lubricated.

MECHANICAL DISC BRAKES

Introduction
Instead of a shoe exerting pressure on the rim of wheel, a pad acts on a disc located in the front
cable that extends out of the lever. The braking system is made up of:
- Brake lever
- Brake cables and housing
- Disc brake pads
Disc brakes can become very hot after use. Be very careful when inspecting them. Like with
WARNING Disc brakes can become very hot and even burn your skin. Moreover, the corners
can be sharp and cut you. Avoid touching the disc and brakes when they are hot or rotating.
Inspection
contact with the handlebar.
Check that there is no oil, grease or other type of dirt on the disc. The disc is an essential part
of the braking system; therefore, it must be kept clean. Remove the brake pads from the cali-
pers when you are going to deep-clean. Do not use cleansers, degreasers or solvents to clean
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