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SRAM Guide R, Service Manual, Page: 12 / 36

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SRAM Guide R Service Manual Download Page 12

12

Caliper Piston Removal

Remove the pistons from each caliper body half.

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 applied, which will contaminate the brake 

pads and could lead to a brake failure.

8 

9 

Pick 

20 mm or 15 mm Thru Axle

Summary of Contents for Guide R

Page 1: ...GEN 0000000005811 Rev C 2021 SRAM LLC s e r v i c e m a n u a l 2017 2019 Guide RS R...

Page 2: ...nty 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 servic...

Page 3: ...RAKE PAD REMOVAL 9 CALIPER PISTON REMOVAL 10 CALIPER PISTON INSTALLATION 13 LEVER SERVICE 16 PARTS AND TOOLS NEEDED FOR SERVICE 16 GUIDE RS LEVER EXPLODED VIEW 16 GUIDE R LEVER EXPLODED VIEW 17 LEVER...

Page 4: ...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 5: ...n 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...

Page 6: ...iptie 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 c...

Page 7: ...ave 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...

Page 8: ...ilable 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 SR...

Page 9: ...then set them aside in the order that they were removed Remove the E clip from the pad retention bolt Remove the pad retention bolt from the caliper Remove the brake pads and pad H spring from the cal...

Page 10: ...immediately and clean it with isopropyl alcohol or water Damage to painted and or printed surfaces by DOT brake fluid is not covered under warranty Install the pad retention bolt Insert the Guide pad...

Page 11: ...de pad spreader Remove the pad retention bolt Remove each caliper body bolt Separate the caliper body halves Set the heat shield aside Remove the caliper o ring from the outboard side of the caliper 4...

Page 12: ...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 wil...

Page 13: ...ly a small amount of SRAM High Performance DOT 5 1 brake fluid to the circumference of each piston Install the pistons into the caliper bores NOTICE For the best braking performance use only SRAM High...

Page 14: ...two full turns Install the heat shield 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 DOT 5 1 br...

Page 15: ...d 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...

Page 16: ...e a DOT compatible grease Common Tools Pick with a 90 degree bent tip T8 T10 T25 TORX wrench T8 T10 TORX bit socket 8 mm flare nut wrench 8 mm flare nut crowfoot wrench 2 mm 4 mm hex wrench Needle nos...

Page 17: ...barb Bleed port screws Pivot pin Piston assembly Piston assembly Stealth a majig OEM Lever blade bushings Washer Snap ring Binder plug Bladder Reservoir cap Reservoir bolt Lever blade Lever body Pinch...

Page 18: ...pose the compression nut then slide the boot down the brake hose Unthread the hose compression nut then pull the brake hose and compression fitting from the brake lever body Pour the brake fluid into...

Page 19: ...dy into a pan Separate the bladder from the reservoir cover Spray isopropyl alcohol on the bladder and the reservoir cover then clean them with a rag NOTICE All components must be completely dry befor...

Page 20: ...the pivot pin Remove the lever blade from the lever body The lever blade has four pieces the lever blade the cam push rod assembly a washer and the lever return spring To hold all pieces together you...

Page 21: ...bushings from both sides of the lever RS only Use a T8 TORX wrench to remove the SwingLink pivot pinch bolt RS only Use a T8 TORX wrench to push out the SwingLink pivot pin The SwingLink will fall ou...

Page 22: ...e pliers to remove the piston assembly CAUTION EYE HAZARD Wear safety glasses Do not look directly into the lever body while performing this step The internal piston spring assembly is preloaded and w...

Page 23: ...can also use SRAM DOT Assembly Grease or DOT 5 1 or 4 compatible grease as a lubricant Install the new piston assembly into the lever body Spray isopropyl alcohol on the lever body and both of your g...

Page 24: ...Link bushings fall out easily apply a small amount of DOT grease to the bushings to help hold them in place Insert the lever blade bushings into both sides of the lever Place the pushrod into the pist...

Page 25: ...ing is seated properly in the lever The outboard end of the spring must press against the lever blade while the inboard end of the spring must press against the lever body If the return spring is not...

Page 26: ...que wrench and a T8 TORX bit socket to tighten the bolt to 1 1 1 3 N m 9 12 in lb Use a T8 TORX wrench to install a new binder bolt plug Press the bladder into the reservoir cap so that the bladder is...

Page 27: ...nd compression fitting NOTICE You must install a new hose barb and compression fitting before recon necting the brake lever to the hose Apply DOT grease to the hose barb threads Thread the hose barb i...

Page 28: ...onto the compression nut and install the compression fitting and nut into the lever Use a flare nut crowfoot with a torque wrench to tighten the compression nut to 8 N m 71 in lb Spray isopropyl alcoh...

Page 29: ...reassemble the R lever blade assembly Place the washer on the cam push rod assembly You may add a dab of SRAM DOT grease to hold the washer in place Install the lever return spring onto the cam push...

Page 30: ...ile the inboard end of the spring 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 Line up the cam and lever bl...

Page 31: ...9 12 in lb Use a T8 TORX wrench to install a new binder bolt plug Press the bladder into the reservoir cap so that the bladder is properly seated and flush with the reservoir cap Insert the reservoir...

Page 32: ...ose barb and compression fitting before reconnecting the brake lever to the hose 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...

Page 33: ...ession fitting and nut into the lever Use a flare nut 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 C...

Page 34: ...g 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 in...

Page 35: ...axle Maxle 360 Maxle DH 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 Noir NX OCT OmniCal O...

Page 36: ...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 3...

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