Summary of Guide Ultimate
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Gen.0000000004961 rev c © 2017 sram, llc guide ultimate service manual.
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2 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 und...
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 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. If the system has been contamina...
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6 troubleshooting t r o u b l e s h o o t i n g 'sticky' or slow brake pad return excessive lever throw if your brakes feel sticky and exhibit slow brake pad return and/or excessive brake lever throw, it may be a result of the pistons sticking in the caliper. Before completely disassembling your cal...
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7 caliper service c a l i p e r s e r v i c e 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 infor...
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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 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. Use a t25 torx ® wrench to remove each caliper body bolt. Separate the caliper body halves. Set the heat shield aside. 3 t25 t...
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11 caliper piston removal 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. ⚠caution do not scratch the seal gla...
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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 ultimate™ bleed block into the caliper. ⚠caution you must bleed your brakes before reinstalling the brake pads. Inst...
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15 guide ultimate exploded view 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 • safety glasses • nitrile gloves • oil pan • isopropyl alcohol • clean, lint-free shop towel • sram® high-performance 5.1 dot fluid or dot 4 fluid, or sram dot grease • dot compatible g...
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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 shop towel. Use...
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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, then clean them with a shop towel. Notice all components must be completely dry before reinstalling them. Moistur...
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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 unthread then remove the swinglink™ pinch bolt from the lever body. Use the end of a t8 torx wrench to push the swinglink pivot pin out of the lever body. Slide the end of a t8 torx wrench through the hole...
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20 piston assembly removal remove the swinglink™ bushings by hand. 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 to unthread the sleeve, then remove the sleeve and coupler from the lever body. If the pi...
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21 piston assembly removal 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. ⚠caution - eye hazard wear safety glasses. The piston assembly is spring loaded and will force...
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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 insert the sleeve into the coupler by hand. The sleeve threads must be oriented away from the base of the coupler. 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 ...
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24 piston assembly installation 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 ho...
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25 piston assembly installation 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 pinch bolt. Use a t8 torx ® wrench...
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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 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. ...
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27 lever blade installation 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). Press the bladder into the reservoir cap, the bladder must be flush with the cap to be properly installed. Insert the reservoir cap/bladder assembly onto the lever body....
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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 1-1.3 n·m (10-11 in-lb). Spray isopropyl alcohol on the lever body and clean it with a shop towel. Cut the hose to install a new barb and compression fitting. Apply dot grease to the hos...
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29 lever blade installation install the compression nut onto the hose. 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...
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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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World headquarters sram llc 1333 north kingsbury, 4th flr chicago, illinois 60642 usa asian headquarters sram taiwan no. 1598-8 chung shan road shen kang hsiang, taichung city taiwan r.O.C. European headquarters sram europe paasbosweg 14-16 3862zs nijkerk the netherlands www.Sram.Com/service.