When refitting the pads, make sure you have the metal tab on the rear pad.
A dab of copper grease on the back of the pads can stop pad squeal.
When closing the caliper, make sure both of the pad springs are properly positioned.
If they are incorrectly positioned you will see the spring protruding through the inspection hole.
Do the 13mm caliper carrier bolts up tight, you may need to hold the
other side of the bolt receiver with a 17mm spanner to stop it spinning.
Pump the brake pedal to set the caliper pistons and repressurise the system.
Bedding In Pads
You are supposed to slowly bed the brake pads in when you have fitted them.
This usually involves long slow braking to bring the heat up.
Follow the instructions given by the manufacturer of your particular brake pads.