Summary of RSC
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Gen.0000000005189 rev c © 2017 sram, llc 2017 guide™ rsc service manual.
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Sram llc warranty extent of limited warranty except as otherwise set forth herein, sram warrants its products to be free from defects in materials or workmanship for a period of two years after original purchase. This warranty only applies to the original owner and is not transferable. Claims under ...
Page 3: Table of Contents
Table of contents brake service overview .............................................................................................................................................................................5 troubleshooting .......................................................................
Page 4: Safety First!
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!.
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5 b r a k e s e r v i c e o v e r v i e w sram brake systems need to be serviced periodically to optimize braking function. If brake fluid is leaking from any area of the brake, there may be damage or wear and tear to the internal moving parts. If the system has been contaminated with the wrong flui...
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6 troubleshooting t r o u b l e s h o o t i n g if your levers have excessive brake lever throw, it may be a result of the pistons sticking in the caliper. Before bleeding the system, you can try to loosen the sticky piston by performing the following steps: 1. Clamp the bicycle into a bicycle work ...
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7 caliper service c a l i p e r e x p l o d e d v i e w c a l i p e r s e r v i c e we recommend that you have your sram guide™ brakes serviced by a qualified bicycle mechanic. Servicing sram brakes requires knowledge of brake components as well as the special tools and oils used for service. For ex...
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8 caliper brake pad removal c a l i p e r b r a k e p a d r e m o v a l notice dot fluid will damage painted surfaces. If any fluid comes in contact with a painted surface (i.E. Your frame) or printing on the brakes, wipe it off immediately and clean it with isopropyl alcohol or water. Damage to pai...
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9 caliper piston removal c a l i p e r p i s t o n r e m o v a l notice dot fluid will damage painted surfaces. If any fluid comes in contact with a painted surface (i.E. Your frame) or printing on the brakes, wipe it off immediately and clean it with isopropyl alcohol or water. Damage to painted an...
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10 caliper piston removal remove the guide™ pad spreader. Use a 2.5 mm hex 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 ...
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11 caliper piston removal remove the pistons from each caliper body half. Use a pick to remove the piston 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 ap...
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12 caliper piston installation c a l i p e r p i s t o n i n s t a l l a t i o n notice dot fluid will damage painted surfaces. If any fluid comes in contact with a painted surface (i.E. Your frame) or printing on the brakes, wipe it off immediately and clean it with isopropyl alcohol or water. Dama...
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13 caliper piston installation align the caliper body halves then use a t25 torx ® wrench to thread each body bolt into the caliper two full turns. Install the heat shield. Use a t25 torx bit socket with a torque wrench to tighten each bolt to 4.4-5.4 n·m (39-48 in-lb). Remove the o-rings from the b...
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14 caliper piston installation hold the banjo at the desired angle. Use a torque wrench with a t25 torx ® bit socket to tighten the bolt to 4.4-5.4 n·m (39-48 in-lb). Insert the guide™ bleed block into the caliper. Use a 2.5 mm hex wrench to install the pad retention bolt ⚠warning you must bleed you...
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15 lever service l e v e r s e r v i c e p a r t s a n d t o o l s n e e d e d f o r s e r v i c e parts • lever internals guide™ - rsc/ultimate safety and protection supplies • safety glasses • nitrile gloves • oil pan • clean, lint-free rag sram tools • sram guide level internals assembly tool • n...
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16 lever blade removal l e v e r b l a d e r e m o v a l notice dot fluid will damage painted surfaces. If any fluid comes in contact with a painted surface (i.E. Your frame) or printing on the brakes, wipe it off immediately and clean it with isopropyl alcohol or water. Damage to painted and/or pri...
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17 lever blade removal use a t10 torx® wrench to remove the reservoir cap bolt nearest to the lever blade. Carefully turn the 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 t...
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18 lever blade removal pour the fluid from the brake lever body into a pan. Separate the bladder from the reservoir cover. Spray isopropyl alcohol on the bladder and the reservoir cover and clean them with a rag. Notice all components must be completely dry before reinstalling them. Moisture residue...
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19 piston assembly removal p i s t o n a s s e m b l y 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 15 n•m (133 in-lb) 22 mm 1 2 t8 tor...
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20 piston assembly removal remove the swinglink™ bushings by hand. Use a sram guide™ lever internals assembly tool to unthread the piston sleeve and coupler. Insert the sram guide lever internals assembly tool into the lever body and align the keyslot of the tool with the piston sleeve. Use the tool...
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21 piston assembly removal 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 assembly is spring loaded and will forcefully eject from the lever body w...
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22 piston assembly installation p i s t o n a s s e m b l y i n s t a l l a t i o n notice dot fluid will damage painted surfaces. If any fluid comes in contact with a painted surface (i.E. Your frame) or printing on the brakes, wipe it off immediately and clean it with isopropyl alcohol or water. D...
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23 piston assembly installation place the sleeve on the coupler. The sleeve threads must be oriented away from the base of the coupler. Use the sram guide™ lever internals assembly tool tool to engage and thread the sleeve and coupler onto the piston assembly. Engage the slots on the sleeve with the...
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24 piston assembly installation place the swinglink™ onto the sram guide™ 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 the swinglink. Use a 2 mm hex wrench to remove the swinglink from the sram guide lever int...
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25 piston assembly installation 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. Apply a small amount of loctite® threadlocker blue 242® onto the pinch bolt. Use a t8 torx® wrench to thread the swinglink pinch...
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26 lever blade installation l e v e r b l a d e i n s t a l l a t i o n install the lever blade. Line up the pivot holes of the lever blade with the pivot holes in the lever body. Make sure your lever return spring is seated properly in the lever. The outboard end of the spring must press against th...
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27 lever blade installation use a torque wrench and a t10 torx® bit socket to tighten each pivot bolt to 2.7-3.2 n·m (24-28 in-lb). Press the bladder into the reservoir cap, make sure the bladder is properly seated into the reservoir cap. The bladder should be flush with the cap. Insert the reservoi...
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28 lever blade installation use a torque wrench and a t10 torx® bit socket to tighten each reservoir cap bolt to 2.7-3.2 n·m (24-28 in-lb). Cut the hose to install a new barb and compression fitting. Notice you must install a new hose barb and compression fitting before recon- necting the brake leve...
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29 lever blade installation thread the compression fitting over the hose barb, counter-clockwise, until it is flush or slightly lower than the hose barb. The compression fitting is reverse threaded. Apply dot grease to the outside of the compression fitting and the threads of the compression nut. In...
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30 disc brake pad and rotor bed-in procedure d i s c b r a k e p a d a n d r o t o r b e d - i n p r o c e d u r e all new brake pads and rotors should be put through a wear-in process called 'bed-in'. The bed-in procedure, which should be performed prior to your first ride, ensures the most consist...
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31 this publication includes trademarks and registered trademarks of the following companies: torx® is a registered trademark of acument intellectual properties, llc. Loctite® and threadlocker blue 242® are registered trademarks of henkel corporation.
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32 asian headquarters sram taiwan no. 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 usa european headquarters sram europe paasbosweg 14-16 3862zs nijkerk the netherlands www.Sram.Com.