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SRAM RSC 2017, Service Manual

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SRAM RSC 2017 Service Manual Download Page 26

26

Piston Assembly Installation

Apply a small amount of Loctite Threadlocker Blue 242 onto the pinch 

bolt.
Use a T8 TORX wrench to thread the SwingLink pinch bolt into the 

lever body. Use a torque wrench and a T8 TORX bit socket to torque 

the bolt to 1.1-1.3 N

·

m (10-12 in-lb).

11 

Loctite Threadlocker Blue 242

20 mm or 15 mm Thru Axle

T8 TORX wrench

QR

T8 TORX bit

1.1-1.3 N•m (10-12 in-lb)

22 mm

Summary of Contents for RSC 2017

Page 1: ...GEN 0000000005797 Rev C 2021 SRAM LLC 2017 2019 Guide RSC s e r v i c e m a n u a l ...

Page 2: ...ty does not apply to products that have been incorrectly installed adjusted and or maintained according to the respective SRAM user manual The SRAM user manuals can be found online at sram com service This warranty does not apply to damage to the product caused by a crash impact abuse of the product non compliance with manufacturer s specifications of intended usage or any other circumstances in w...

Page 3: ...SAFETY FIRST We care about YOU Please always wear your safety glasses and protective gloves when servicing SRAM products Protect yourself Wear your safety gear ...

Page 4: ...8 CALIPER EXPLODED VIEW 8 CALIPER BRAKE PAD REMOVAL 9 CALIPER PISTON REMOVAL 10 CALIPER PISTON INSTALLATION 13 LEVER SERVICE 16 PARTS AND TOOLS NEEDED FOR SERVICE 16 GUIDE RSC EXPLODED VIEW 16 LEVER BLADE REMOVAL 17 PISTON ASSEMBLY REMOVAL 20 PISTON ASSEMBLY INSTALLATION 23 LEVER BLADE INSTALLATION 27 DISC BRAKE PAD AND ROTOR BED IN PROCEDURE 31 ...

Page 5: ...nse them with clean water then allow all the parts to dry prior to rebuilding Install new seals a new bladder and replace the hose For best results use only SRAM High Performance DOT 5 1 brake fluid If SRAM brake fluid is not available only use DOT 5 1 or 4 brake fluid Use only DOT compatible grease Always wear safety glasses and nitrile gloves when working with DOT brake fluid Used DOT brake flui...

Page 6: ...ziptie or a pick to pierce and remove the old seal or o ring Apply DOT grease to the new seal or o ring when instructed NOTICE Do not scratch any sealing surfaces when servicing the product Scratches can cause leaks Consult the spare parts catalog to replace the damaged part Use aluminum soft jaws when placing a part in a bench vise Tighten the part with a torque wrench to the torque value listed ...

Page 7: ...have advanced and contact the pad spacer One piston may move faster than the other continue to squeeze the lever until the pistons touch the spacer 6 Remove the pad spacer 7 Use a plastic tire lever to push the pistons back into the caliper bores 8 Repeat steps 4 7 until the pistons move freely 9 Install the brake pads and the wheel 10 Loosen the caliper bolts 11 Lightly squeeze approx 4 lbs the b...

Page 8: ...lable only use a DOT compatible grease Common Tools 2 5 mm hex wrench Needle nose pliers Pick with a 90 degree bent tip T25 TORX wrench T25 TORX bit socket Torque wrench Digital caliper SRAM Tools SRAM Brake Bleed Kit includes Bleed Block and Bleeding Edge Fitting Pad Spreader Tool 1 8 mm Guide C a l i p e r E x p l o d e d V i e w E clip Banjo bolt Caliper body bolt Caliper body bolt Caliper o ri...

Page 9: ... order that they were removed Use needle nose pliers to remove the E clip from the pad retention bolt Use a 2 5 mm hex wrench to remove the pad retention bolt from the caliper Remove the brake pads and pad h spring from the caliper NOTICE Brake pads must be replaced if the total thickness of the backing plate and pad friction material is less than 3 mm 1 2 Needle nose pliers 20 mm or 15 mm Thru Ax...

Page 10: ...with isopropyl alcohol or water Damage to painted and or printed surfaces by DOT brake fluid is not covered under warranty Use a 2 5 mm hex wrench to install the pad retention bolt Insert the Guide pad spreader so that it snaps onto the pad retention bolt Squeeze the brake lever to advance the pistons until they contact the pad spreader Use a T25 TORX wrench to remove the banjo bolt 1 2 5 mm hex w...

Page 11: ...ex wrench to remove the pad retention bolt Use a T25 TORX wrench to remove each caliper body bolt Separate the caliper body halves Set the heat shield aside Remove both of the caliper o rings from the outboard side of the caliper 4 2 5 mm hex wrench 5 T25 TORX wrench 6 7 ...

Page 12: ...on seals from each caliper body half Install new seals inside each caliper body half WARNING Do not scratch the seal gland with the pick Scratches could cause fluid to leak when the brake is applied which will contaminate the brake pads and could lead to a brake failure 8 9 Pick 20 mm or 15 mm Thru Axle ...

Page 13: ...circumference of each piston Install the pistons into each half of the caliper body NOTICE For the best braking performance use only SRAM High Performance 5 1 DOT brake fluid If SRAM fluid is not available use only DOT 5 1 or 4 brake fluid Do not use grease Grease will prevent the pistons from fully retracting into the caliper bores which will reduce braking performance Spray isopropyl alcohol on ...

Page 14: ...l the heat shield Use a T25 TORX bit socket with a torque wrench to tighten each bolt to 9 8 11 8 N m 87 104 in lb Remove the o rings from the banjo bolt and banjo fitting Apply a small amount of SRAM High Performance 5 1 DOT brake fluid to the new o rings and install them T25 TORX 20 mm or 15 mm Thru Axle 4 5 T25 TORX bit 9 8 11 8 N m 87 104 in lb 6 ...

Page 15: ...the brakes could contaminate the brake pads and lead to a brake failure Spray isopropyl alcohol on the caliper and clean it with a rag Visually check your work If any of the o rings protrude from the banjo fitting or banjo bolt remove and replace the o rings then repeat the installation process CAUTION Servicing your brakes removes all of the fluid from the system You must bleed the brakes after y...

Page 16: ...s Needle nose pliers Pick with a 90 degree bent tip T8 T10 T25 TORX wrench T8 T10 TORX bit socket 8 mm flare nut crowfoot wrench 2 mm 4 mm hex wrench Torque wrench SRAM Tools Lever Internals Assembly Tool Guide Ultimate RSC Code RSC G u i d e R S C E x p l o d e d V i e w Lever body Compression fitting Reservoir bolts 2 Bladder Reservoir cap Detent spring Piston assembly Piston assembly Stealth a ...

Page 17: ...the brake lever from the handlebar Pull the hose boot off the compression nut and slide it down the hose Use an 8 mm flare nut wrench to remove the hose compression nut Pull the brake hose and compression fitting from the brake lever body Pour the brake fluid into an oil pan Squeeze the lever blade to pump out the excess brake fluid from inside the lever body NOTICE If the system has been contamin...

Page 18: ... lever body upside down so that the detent spring and ball fall out of the lever body If they do not initially fall out gently tap the lever against a clean rag Use a T10 TORX wrench to remove the remaining reservoir cap bolt Remove the reservoir cover and bladder from the lever body 5 T10 TORX wrench 6 7 T10 TORX wrench 8 ...

Page 19: ...dder and the reservoir cover and clean them with a rag NOTICE All components must be completely dry before reinstalling them Moisture residue from cleaning the bladder can leak out of the bladder as it dries which can be misinterpreted as a system leak Use a T10 TORX wrench to remove the lever pivot bolts Remove the lever blade 9 10 11 T10 TORX wrench 12 ...

Page 20: ... R e m o v a l Use a T8 TORX wrench to remove the SwingLink pinch bolt Use a T8 TORX wrench to push the SwingLink pivot pin out of the lever body Use a T8 TORX wrench to remove the SwingLink T8 TORX wrench 1 2 T8 TORX wrench 3 T8 TORX wrench T8 TORX wrench ...

Page 21: ...d coupler are stuck in the lever body use needle nose pliers to gently remove Remove the sleeve from the coupler by hand Spray isopropyl alcohol on both the sleeve and the coupler and clean them with a rag Place a rag over the lever body to prevent the piston assembly spring from forcefully ejecting Use your hand to push out the contact adjust knob CAUTION EYE HAZARD Use safety glasses The piston ...

Page 22: ...22 Piston Assembly Removal Remove the piston assembly from the lever body Spray isopropyl alcohol on the lever body and the lever blade and clean them with a rag 8 9 ...

Page 23: ...SRAM High Performance DOT 5 1 brake fluid You can also use SRAM DOT Assembly Grease or DOT 5 1 or 4 compatible grease as a lubricant Install the new lubricated piston assembly into the lever body Spray isopropyl alcohol on the lever body and both of your gloves and clean with a rag Use the SRAM Lever Internals Assembly Tool to press the piston into the lever body while inserting the contact adjust...

Page 24: ...sembly Tool tool in a clockwise rotation until it stops Use needle nose pliers to install the SwingLink bushings If the SwingLink bushings fall out easily apply a small amount of grease to the bushings to help hold them in place Place the SwingLink onto the SRAM Lever Internals Assembly Tool to adjust the length of the push rod on the SwingLink Use a 2 mm hex wrench to tighten the push rod into th...

Page 25: ...d length NOTICE The push rod length must be set to exactly 26 3 mm Any other length will reduce brake performance Use a 2 mm hex wrench to remove the SwingLink from the SRAM Lever Internals Assembly Tool and place the pushrod into the coupler sleeve Align the holes of the SwingLink and the SwingLink bushings then press the pivot pin into the hole until it is flush with the lever body 8 Digital Cal...

Page 26: ...he pinch bolt Use a T8 TORX wrench to thread the SwingLink pinch bolt into the lever body Use a torque wrench and a T8 TORX bit socket to torque the bolt to 1 1 1 3 N m 10 12 in lb 11 Loctite Threadlocker Blue 242 20 mm or 15 mm Thru Axle T8 TORX wrench T8 TORX bit 1 1 1 3 N m 10 12 in lb 22 m ...

Page 27: ...ard end of the spring must press against the lever blade while the inboard end of the springs must press against the lever body If the return spring is not seated properly you will not be able to adjust the reach of the lever blade Apply a small amount of Loctite Threadlocker Blue 242 onto each pivot bolt Use a T10 TORX wrench to thread each pivot bolt into the bearings on each side of the lever b...

Page 28: ... the reservoir cap make sure the bladder is properly seated into the reservoir cap The bladder should be flush with the cap Insert the reservoir cap bladder assembly onto the lever body Install the detent ball followed by the detent spring into the lever body reservoir hole closest to the lever blade T10 TORX bit 1 1 1 3 N m 10 12 in lb 22 m 4 5 6 7 ...

Page 29: ...ompression fitting which functioned properly prior to disconnection Upon reconnection you must install a new SJ hose barb and a new red SJ compression fitting Brake hoses assembled with non Stealth a majig hose barbs and compression fittings will not function Apply DOT grease to the hose barb threads Thread the hose barb into the hose until it is flush with the end of the hose NOTICE Do not overti...

Page 30: ...pression fitting and nut into the lever Use a flarenut crowfoot with a torque wrench to tighten the compression nut to 8 N m 71 in lb Spray isopropyl alcohol on the lever body and clean it with a rag CAUTION Servicing your brakes removes all of the fluid from the system You must bleed the brakes after you service the brake caliper and or lever For brake bleed brake hose shortening and brake pad re...

Page 31: ...ng You must be familiar with the power and operation of disc brakes Braking heavily when not familiar with the power and operation of disc brakes could cause you to crash which could lead to serious injury and or death If you are unfamiliar with the power and operation of disc brakes you should have the bed in process performed by a qualified bicycle mechanic To safely achieve optimal results rema...

Page 32: ...Maxle Lite Maxle Lite DH Maxle Stealth Maxle Ultimate Micro Gear System Mini Block Mini Cluster Monarch Monarch Plus Motion Control Motion Control DNA MRX MX Noir NX OCT OmniCal OneLoc Paceline Paragon PC 1031 PC 1110 PC 1170 PG 1130 PG 1050 PG 1170 Piggyback Poploc Power Balance Power Bulge PowerChain PowerDomeX Powered by SRAM PowerGlide PowerLink Power Pack Power Spline Predictive Steering Pres...

Page 33: ...1598 8 Chung Shan Road Shen Kang Hsiang Taichung City Taiwan R O C WORLD HEADQUARTERS SRAM LLC 1000 W Fulton Market 4th Floor Chicago Illinois 60607 U S A EUROPEAN HEADQUARTERS SRAM Europe Paasbosweg 14 16 3862ZS Nijkerk The Netherlands ...

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