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19

Air Spring Service

Remove the outer and inner o-rings on the floating seal head. Apply grease 

and install new o-rings. 

Remove the air piston outer o-ring. Apply grease and install a new o-ring.  

Remove the top out bumper cone from the air piston. Inspect the tension 

pin hole on the air piston. Install the top out bumper cone onto the air 

piston.

NOTICE

If the tension pin is protruding or not centered, replace the air piston 

assembly and inspect the inside of the upper tube for damage.  

Apply a liberal amount of grease to the inside of the upper tube, from the 

end of the tube to approximately 60 mm into the tube.  

Pick

Pick

SRAM Butter (Bluto™ or Reba®) / PM600 (Reba only)

10 

11 

SRAM Butter (Bluto™ or Reba®) / PM600 (Reba only)

Summary of Contents for Bluto

Page 1: ...GEN0000000005114 Rev C 2017 SRAM LLC 2017 2018 REBA and Bluto s e r v i c e m a n u a l...

Page 2: ...o entitled to have the goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure LIMITATIONS OF LIABILITY To the extent allowed by loc...

Page 3: ...G REMOVAL 10 50 200 HOUR SERVICE LOWER LEG REMOVAL 10 50 HOUR SERVICE LOWER LEG SERVICE 12 200 HOUR SERVICE LOWER LEG SEAL SERVICE 13 SOLO AIR SPRING SERVICE 15 TRAVEL CHANGE ADJUSTMENT OPTIONAL 15 SO...

Page 4: ...SAFETY FIRST We care about YOU Please always wear your safety glasses and protective gloves when servicing RockShox products Protect yourself Wear your safety gear...

Page 5: ...p collar Spool Floating seal head Aluminum support washer Wavy washer Air shaft guide Retaining ring Retaining ring Jounce bottom out bumper Crush washer Bottom bolt Rebound adjuster Bottom bolt Crush...

Page 6: ...itional information about RockShox remotes user manuals are available at www sram com service Clean the exterior of the product with mild soap and water to avoid contamination of internal sealing part...

Page 7: ...icycle Tools Bicycle work stand Downhill tire lever Shock Pump Common Tools 1 5 2 2 5 5 and 8 mm hex wrenches 1 5 2 2 5 and 5 mm hex bit sockets 10 mm open end wrench 24 mm socket Cassette lockring to...

Page 8: ...n Restores small bump sensitivity Restores damping performance R e c o r d Y o u r S e t t i n g s Use the charts below to record your fork settings to return your fork to its pre service settings Rec...

Page 9: ...l pressure is removed from the fork before proceeding Failure to do so can result in injury and or damage to the fork Wear safety glasses Remove the rebound adjuster knob Rebound knob shape and length...

Page 10: ...e upper tube or if oil does not drain from either side the press fit of the shaft s into the lower leg may still be engaged Reinstall the bottom bolts 2 to 3 turns and repeat the previous step NOTICE...

Page 11: ...y the foam rings with isopropyl alcohol and clean them with a rag Soak the foam rings in suspension oil Clean the inside and outside of the lower leg Clean the wiper seals Install the foam rings under...

Page 12: ...to remove the seal Repeat on the other side Discard the wiper seals NOTICE Keep the lower leg stable Do not allow the lower leg to twist in opposite directions compress toward each other or be pulled...

Page 13: ...leg until the seal surface is flush with the top of the lower leg Repeat on the other side NOTICE Only press the wiper seal into the lower leg until it is flush with the top surface of the lower leg a...

Page 14: ...o m l e s s T o k e n O p t i o n a l I n s t a l l a t i o n Bottomless Tokens can be added to or removed from the air top cap to fine tune the bottomout feel and spring curve Bottomless Tokens reduc...

Page 15: ...tter when servicing Reba forks No other grease is approved for use When replacing seals and o rings use your fingers or a pick to remove the seal or o ring Spray isopropyl alcohol on each part and cle...

Page 16: ...large retaining ring pliers into the eyelets of the retaining ring Press firmly on the pliers to push the air shaft guide into the upper tube enough to compress and remove the retaining ring NOTICE S...

Page 17: ...r Spring Service Clean the inside and outside of the upper tube Inspect the inside and outside of the upper tube for damage Remove the seal head assembly from the air shaft Clean the air shaft assembl...

Page 18: ...ension pin hole on the air piston Install the top out bumper cone onto the air piston NOTICE If the tension pin is protruding or not centered replace the air piston assembly and inspect the inside of...

Page 19: ...and air shaft guide in that order onto the air shaft Push the air shaft and seal head assembly into the bottom of the upper tube Orient the washers so that the aluminum support washer goes into the up...

Page 20: ...de of the seal head tab The tab of the air shaft guide should be positioned between the retaining ring eyelets NOTICE Do not scratch the air spring shaft Scratches on the air shaft will allow air to b...

Page 21: ...to the open position Remove the retention screw cable spool and cable Loosen the remote cable stop collar clamping bolt Remove the cable stop collar Loosen the compression damper top cap Remove the co...

Page 22: ...Install a new o ring Remove the compression damper piston o ring Apply grease to the new o ring and install it RCT3 Install a new glide ring on the compression damper piston Pour the suspension oil in...

Page 23: ...contact the shaft Scratches on the shaft will allow fluid to bypass the seal head into the lower leg Scratches can result in reduced damper performance Remove the rebound damper and seal head Clean th...

Page 24: ...n the seal head Remove the glide ring from the piston and install a new glide ring Install the seal head on the damper shaft Insert the rebound damper piston into the bottom of the upper tube at an an...

Page 25: ...ring into the upper tube groove NOTICE Do not scratch the rebound damper shaft Scratches will allow oil to leak into the lower leg resulting in reduced damper performance Confirm the retaining ring i...

Page 26: ...in the open position A closed compression valve will restrict oil flow during installation Install the compression damper into the upper tube Press down and rotate in a circular motion until the damp...

Page 27: ...ighten the retention screw RL Remote Install the cable stop collar Tighten the cable stop collar Install the bottom spool with the grooves up Install the cable spool top so the indicator dot on the ca...

Page 28: ...actory Do not apply extra grease to seals that already have grease on them Install the lower leg onto the upper tube enough to engage the upper bushing with the upper tube NOTICE Make sure both wiper...

Page 29: ...and damper shaft are visible through the lower leg bolt holes 200 hour service only Use a pick and needle nose pliers to remove the old crush washers from each bottom bolt Hold the crush washer with...

Page 30: ...rk s lower leg and pressurize the air spring You may see a drop in the indicated air pressure on the pump gauge while filling the air spring this is normal Continue to fill the air spring to the recom...

Page 31: ...This publication includes trademarks and registered trademarks of the following company Liquid O Ring is a registered trade name of Oil Center Research Inc...

Page 32: ...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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