SRAM Guide Ultimate Service Manual
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SRAM Guide Ultimate Service Manual

SRAM Guide Ultimate Service Manual

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Guide Ultimate
Service Manual
GEN.0000000004961 Rev C
© 2017 SRAM, LLC

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Summary of Contents for SRAM Guide Ultimate

  • Page 1 Guide Ultimate Service Manual GEN.0000000004961 Rev C © 2017 SRAM, LLC...
  • Page 2 LIMITATIONS OF LIABILITY To the extent allowed by local law, except for the obligations specifically set forth in this warranty statement, in no event shall SRAM or its third party suppliers be liable for direct, indirect, special, incidental, or consequential damages.

  • Page 3: Table Of Contents

    CALIPER PISTON REMOVAL ............................................9 CALIPER PISTON INSTALLATION ..........................................12 LEVER SERVICE ........................................ 15 PARTS AND TOOLS NEEDED FOR SERVICE......................................15 GUIDE ULTIMATE EXPLODED VIEW ........................................15 LEVER BLADE REMOVAL............................................16 PISTON ASSEMBLY REMOVAL ..........................................19 PISTON ASSEMBLY INSTALLATION ........................................22...
  • 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: Brake Service Overview

    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.

  • Page 6: Troubleshooting

    Squeeze the brake lever several times until the brake pads nearly contact one another. Insert the Guide Ultimate pad spreader between the brake pads to spread the pads to the full width of the clip. Remove the Guide Ultimate pad spreader.

  • Page 7: Caliper Service

    ® We recommend that you have your SRAM Guide Ultimate™ brakes serviced by a qualified bicycle mechanic. Servicing SRAM brakes knowledge of brake components as well as the special tools and oils used for service. For exploded diagram and part number information, please refer to the Spare Parts Catalog available on our website at sram.com/service.

  • Page 8: Caliper Brake Pad Removal

    Use needle nose pliers to remove the E-clip from the pad retention 2.5 mm hex wrench bolt. Remove the Guide Ultimate™ pad spreader. Use a 2.5 mm hex wrench to remove the pad retention bolt from the caliper.

  • Page 9: Caliper Piston Removal

    Damage to painted and/or printed surfaces by DOT fluid is not covered under warranty. Use a 2.5 mm hex wrench to install the pad retention bolt. Insert the Guide Ultimate™ pad spreader so that it snaps onto the pad retention bolt.
  • Page 10 ® Use a T25 TORX wrench to remove the banjo bolt. Remove the Guide Ultimate pad spreader. Use a 2.5 mm hex wrench to remove the pad retention bolt. T25 TORX wrench 2.5 mm hex wrench ® Use a T25 TORX wrench to remove each caliper body bolt.
  • Page 11 Remove both of the caliper o-rings from the outboard side of the caliper. 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. ⚠CAUTI ON Do not scratch the seal gland with the pick.

  • Page 12: Caliper Piston Installation

    NOTI CE For the best braking performance, use only SRAM High-Performance 5.1 DOT fluid. If SRAM fluid is not available, use only DOT 5.1 or 4 fluid. Do not use grease. Grease will prevent the pistons from fully retracting into the caliper bores which will reduce braking performance.
  • Page 13 4.4-5.4 N·m (39-48 in-lb). T25 TORX 4.4-5.4 N·m (39-48 in-lb) Remove the o-rings from the banjo bolt and banjo fitting. Apply a small amount of SRAM® High-Performance 5.1 DOT fluid to the new o-rings and install them. Caliper Piston Installation...
  • Page 14 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 replacement instructions, visit www.sram.com/service. Caliper Piston Installation...

  • Page 15: Lever Service

    • 8 mm flare nut wrench • Clean, lint-free shop towel • 2 mm & 4 mm hex wrench • SRAM® High-Performance 5.1 DOT fluid or DOT 4 Fluid, or SRAM DOT • Torque wrench Grease • SRAM Guide Lever Internals Assembly Tool •...

  • Page 16: Lever Blade Removal

    Install all new seals and a new hose. For the best braking performance, use only SRAM® High-Performance 5.1 DOT fluid. If SRAM fluid is not available, use only High-Performance 5.1 DOT fluid or 4 fluid.
  • Page 17 ® Use a T10 TORX wrench to remove the reservoir cap bolt nearest to the lever blade. T10 TORX wrench 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 shop towel.
  • Page 18 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, then clean them with a shop towel. NOTI CE 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, when it is not.

  • Page 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 unthread then remove the SwingLink™ pinch bolt from the lever body. T8 TORX wrench Use the end of a T8 TORX wrench to push the SwingLink pivot pin out of the lever body.
  • Page 20 SRAM Guide Lever Internals Assembly Tool Sleeve and coupler SRAM Guide Lever Internals Assembly Tool Remove the sleeve from the coupler from the SRAM tool, then separate the sleeve and coupler by hand. Spray isopropyl alcohol on both the sleeve and the coupler and clean them with a shop towel.
  • Page 21 Place a shop towel over the open end of the lever body near the Contact Point Adjustment™ dial. Use your fingers to slide the Contact Point Adjustment dial out of the lever body. ⚠ CAUTIO N - E YE HAZA RD Wear safety glasses.

  • Page 22: Piston Assembly Installation

    Damage to painted and/or printed surfaces by DOT fluid is not covered under warranty. Submerge the new piston assembly in SRAM® High-Performance 5.1 DOT fluid. You can also use SRAM High-Performance 5.1 DOT fluid or 4 compatible grease, as a lubricant. SRAM High-Performance 5.1 DOT fluid Insert the piston assembly into the lever body.
  • Page 23 Insert the sleeve and coupler into the keyslot of the SRAM® Guide Lever Internals Assembly Tool. Use the SRAM tool to align the slots on the sleeve with the slots on the contact adjust dial and insert the SRAM tool into the lever body until you feel the sleeve and contact adjust dial engage.
  • Page 24 Use needle nose pliers to install the SwingLink™ bushings into the lever SwingLink pivot holes so that the lip of the bushing is flush on the inside of the lever body. If the SwingLink bushings fall out easily, apply a small amount of grease to the bushings to help hold them in place.
  • Page 25 Align the SwingLink™ pivot holes and the SwingLink bushings, then press the pivot pin into the SwingLink pivot hole until it is flush with the lever body on both sides. Apply a small amount of Loctite® Threadlocker Blue 242® onto the T8 TORX wrench pinch bolt.

  • Page 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 Insert the lever blade into the lever body with the inboard spring pressing against the lever body. Align the pivot holes of the lever blade and the lever body. Make sure the lever return spring is seated properly in the lever.
  • Page 27 ® Use a torque wrench and a T10 TORX bit socket to tighten each pivot bolt to 1-1.3 N·m (10-11 in-lb). T10 TORX bit 1-1.3 N•m (10-11 in-lb) 22 m Press the bladder into the reservoir cap, the bladder must be flush with the cap to be properly installed.
  • Page 28 Cut the hose to install a new barb and compression fitting. SRAM Hydraulic Hose Cutter 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 29 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 replacement instructions, visit www.sram.com/service. This concludes the Guide Ultimate™ Brake Service. Lever Blade Installation...
  • Page 30 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...
  • Page 31 WORLD HEADQUARTERS ASIAN HEADQUARTERS EUROPEAN HEADQUARTERS SRAM LLC SRAM Taiwan SRAM Europe 1333 North Kingsbury, 4th Flr No. 1598-8 Chung Shan Road Paasbosweg 14-16 Chicago, Illinois 60642 Shen Kang Hsiang, Taichung City 3862ZS Nijkerk Taiwan R.O.C. The Netherlands...

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