Caliper Help

[rd83]

I can't seem to get one my front brake pads square, not sure what to adjust, have had a go but seems to be the same as when I started.

Difficult to see in the picture, but the top edge of the pad hits the rim first, looks like the caliper arm is not square. The opposing arm is fine on this caliper, as is the whole rear caliper.

Anyone know what i need to adjust?

 

[Citius]

Looks like it might be upside down. Difficult to tell - if the carrier has a little shark fin on it, it ought to be facing downwards...

 

[rd83]

Looks like it might be upside down. Difficult to tell - if the carrier has a little shark fin on it, it ought to be facing downwards...

If only. It is the correct way up, the shoe is clearly marked which way it goes.

 

[Smokin Joe]

Don't worry, they'll soon wear in so they hit the rim square.

 

[earlestownflya]

that looks like a pretty fat rim...is it not too wide for the calliper?

 

[rd83]

that looks like a pretty fat rim...is it not too wide for the calliper?

Angle of the photo. The rear caliper is fine.

 

[Globalti]

It's clear from your photo.

The technique is to loosen that hex bolt and by holding the brake lever tight, clamp the brake block firmly against the braking surface while wriggling it slightly to ensure that it is seated flat and the convex/concave washers are correctly seated against each other. Once it is flat and at the correct height to sweep the braking surface and "parallel" with the rim, gently tighten the hex bolt to nip it into place then release the brake and, holding the pad with finger and thumb to resist the torque of the hex key, tighten up the bolt. Check by applying the brake sharply, a well-adjusted brake will make a little "clack" as the pads hit the rim.

If your brakes squeal and need toeing in, repeat the operation but with a twice-folded flap off a cereal packet trapped under the block at its "leading" edge.

 

[Levo-Lon]

^^^ as the man says, then they will soon wear in to fit

 

[Illaveago]

Globalti, post: 3964251, member: 357"]It's clear from your photo.

The technique is to loosen that hex bolt and by holding the brake lever tight, clamp the brake block firmly against the braking surface while wriggling it slightly to ensure that it is seated flat and the convex/concave washers are correctly seated against each other. Once it is flat and at the correct height to sweep the braking surface and "parallel" with the rim, gently tighten the hex bolt to nip it into place then release the brake and, holding the pad with finger and thumb to resist the torque of the hex key, tighten up the bolt. Check by applying the brake sharply, a well-adjusted brake will make a little "clack" as the pads hit the rim.

If your brakes squeal and need toeing in, repeat the operation but with a twice-folded flap off a cereal packet trapped under the block at its "leading" edge.[/QUOTE

Shouldn't that be it's trailing edge for toeing in.

 

[Globalti]

Shouldn't that be it's trailing edge for toeing in.

Ummmmm.... it should be the back of the brake block so that the force of the rotating wheel pulls the blocks parallel.