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Front Brake Pad Replacement

5,419 bytes added, 02:48, 3 December 2019
demote headers for now since it messes up the manual
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See [[Brake Pad Lookup]] to ensure a brake pad match.

{{warning|Avoid touching the pad and rotor surfaces with sharp tools and anything dirty or greasy. Avoid applying one-sided pressure to the rotor.}}

;2013-2014 S-platform
: Actual bike used was a 2014 SR (Nissin 313mm). Likely applicable to S/DS/DSR.

;Tools
* 13mm hex socket
* Torque wrench
* 4mm Allen key
* Size 1 flat head screwdriver
* Sandpaper
* Brake cleaner
* Ceramic grease (copper grease can interfer with the ABS sensors)

[[File:nissin front brake 2014SR loosen bolts.jpg|200px|thumb|Nissin front brake 2014SR loosen bolts]]
[[File:nissin front caliper bolts 2014SR.jpg|200px|thumb|Nissin front caliper bolts 13mm hex 2014SR]]

;Steps
# Clean the slave cylinder to prevent forcing damaging detritus into the seal.
# Gently force the brake pads away from the disk, to ensure room for the new pads, which will be thicker than the worn pads.
#: Apply pressure evenly by hand or with a soft-surfaced tool.
# '''Pre-2015:''' Using the Size 1 flat blade screwdriver, remove the cap to expose the head of the pin.
#: {{warning|Penetrating oil may be necessary, and it's important to use the right size flat blade, as smaller ones can strip the slot as you apply pressure.}}
#: {{warning|Rely on the caliper bolts' anchoring to the disc to ensure leverage.}}
# Remove the pin using a 4mm Allen key.
#: {{warning|Rely on the caliper bolts' anchoring to the disc to ensure leverage.}}
# Remove the 13mm hex bolts holding the caliper to the fork bracket.
# Remove the caliper from the brake disc; inspect and clean.
#: It may be possible to change the brake pads without removing the calipers from the disk, but removal is more thorough to check for wear and keep it clean.
# Remove the plate with the brake pads, inspect and clean, and put in fresh pads.
# Apply ceramic grease to the slave cylinders and sand the front surface of the pads.
# Re-install the pin through the brake pads to anchor them in place.
#: Apply a drop of blue Loctite to prevent it coming loose.
# Re-install the calipers against the rotor:
## With the pads separated sufficiently, slide the caliper over the front disc.
## Align the caliper mounting holes with the fork bracket and thread the 13mm hex bolts to hold in place.
## Apply some blue Loctite to each caliper mounting bolt and tighten with the 13mm hex socket to the right torque ([[Fastener Specifications|2014+: 19ft-lb, 2013: 12ft-lb]]).
## '''Pre-2015:''' Using the Size 1 flat blade screwdriver and a drop of blue Loctite, re-install and tighten the cap over the head of the pin.
# Squeeze the front brake lever a few times to build up pressure in the hydraulics and press the pads up to the disc.
# Test the brakes
## Rotate the front wheel to check that the caliper doesn't impede the wheel.
## Roll the bike and test the brake lever action.
## If there are no obvious problems, gear up and slowly ride the bike to test the brakes.
## If possible, gradually increase the speed of the braking tests to seat and smooth the pads.
## Perform an initially very slow test ride (walking speed up to 25mph), checking brake function and ensuring they are seated and performing adequately.


;2015+ S Platform
: Actual bike used was a 2016 SR

# Locate the bolt used to pin the low side of the brake pads.
#: Remove the clip on the inside of the bolt.
# Detach the ABS wire from the brake line, by carefully unclipping the lower three fasteners holding the ABS wire to the brake line.
# Remove the bolt pinning the pads with a #25 Torx bit.
# Back out the caliper bolts with a 8mm hex bit on a 12-inch or longer wrench.
# Remove the caliper from the rotor.
## Complelely remove the caliper bolts and slide the caliper as far as possible off the rotor.
## With a flat screwdriver about 8-inches long, drop the inside pad out of the caliper.
## After the inside pad clears the caliper, remove the caliper.
# Temporarily hold the old pads against the pistons by loosely replacing the bolt that pins the pads.
# Fully push back the pistons, by using a C-clamp with at least 2x2-inch opening and 1-inch heads, clamping the old pads to the outside caliper body.
# Remove the clamp and old pads.
# Test fit the new pads.
# Insert the outside pad in the caliper.
# Hold the caliper against the rotor and insert the inside pad.
# Re-install the calipers against the rotor:
## Position the caliper to insert the caliper bolts, and tighten a little more than finger-tight.
## Carefully drive the pad-pinning bolt until it stops, and reinstall the inboard clip.
## Remove the caliper bolts one at a time, apply Loctite 242 or equivalent, and retighten.
## Torque the caliper bolts to 19 lb-ft (26 Nm).
## Re-attach the ABS wire to the brake line (via the 3 clips).
# Squeeze the front brake lever a few times to build up pressure in the hydraulics and press the pads up to the disc.
# Test the brakes
## Rotate the front wheel to check that the caliper doesn't impede the wheel.
## Roll the bike and test the brake lever action.
## If there are no obvious problems, gear up and slowly ride the bike to test the brakes.
## If possible, gradually increase the speed of the braking tests to seat and smooth the pads.
## Perform an initially very slow test ride (walking speed up to 25mph), checking brake function and ensuring they are seated and performing adequately.
</onlyinclude>

[[Category:Procedure]]
[[Category:Repair]]

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