Shimano M770 XT Hollowtech II Crankset User Manual
User Manual: Shimano M770 XT Hollowtech II Crankset User Manual
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DEORE XT Front Chainwheel FC-M770 2 1 3 7 6 8 3 5 4 9 10 10 8 8 11 13 12 14 15 5 ITEM NO. 1 2 3 4 5 6 7 8 9 10 11 12 13 * 14 15 16 SHIMANO CODE NO. Y-1F8 11100 Y-1J1 98030 Y-1J1 98040 Y-1J1 98050 Y-1J1 98060 Y-1G3 98010 Y-1FU 98120 Y-1F3 16000 Y-1J1 98070 Y-1J1 98080 Y-1F8 13000 Y-1E5 98210 Y-1TF 21000 Y-1J1 98090 Y-1J1 98100 Y-1J1 98110 Y-1J1 22000 Y-1J1 98020 Y-1J1 98010 DESCRIPTION Crank Arm Fixing Bolt Left Hand Crank Arm 165 mm Left Hand Crank Arm 170 mm Left Hand Crank Arm 175 mm Left Hand Crank Arm 180 mm Clamp Bolt (M6 x 19) & Washer Plate Ring Adapter Unit Left Hand Adapter (B.C.1.37" x 24T) English Thread Spacer (2.5 mm) Inner Cover & O-Ring O-Ring Right Hand Adapter (B.C.1.37" x 24T) English Thread Double Gear Fixing Bolt (M8 x 9.1) & Nut (4 sets) Inner Gear Fixing Bolt (M8 x 8.5 / 4 pcs.) Chainring 22T Chainring 32T Chainring 44T A: Same parts. B: Parts are usable, but differ in materirals, appearance, finish, size, etc. Absence of mark indicates non-interchangeability. 1 0 76 76 -M FC -M -M FC Bolt circle diameter: 104 mm...(For outer gear and middle gear), 64 mm...(For inner gear) FC 97 0 16 INTERCHANGEABILITY A B B A B B A B B A B B A B B A B B A A A A A A B B B B B B A A A A A A A A A B B B B B B 0706-2693 SI-1J10A-002-00 General Safety Information WARNING • The two left crank arm mounting bolts should be tightened alternately in stages rather than each bolt being fully tightened all at once. Use a torque wrench to check that the final tightening torques are within the range of 12 - 14 N·m. Furthermore, after riding approximately 100 km (60 miles), use a torque wrench to recheck the tightening torques. It is also important to periodically check the tightening torques. If the tightening torques are too weak or if the mounting bolts are not tightened alternately in stages, the left crank arm may come off and the bicycle may fall over. • Before riding, you should carefully check your crankset to make sure that there are no cracks, and if you find any sign of a crack or any other unusual condition, do NOT use the bicycle. • Be careful not to let the cuffs of your clothes get caught in the chain while riding, otherwise you may fall off the bicycle. • Check that the tension of the chain is correct and that the chain is not damaged. If the tension is too weak or the chain is damaged, the chain should be replaced. If this is not done, the chain may break cause serious injury. • If the inner cover is not installed correctly, the axle may rust and become damaged, and the bicycle may fall over and serious injury may occur as a result. • Obtain and read the service instructions carefully prior to installing the parts. Loose, worn or damaged parts may cause the bicycle to fall over and serious injury may occur as a result. We strongly recommend only using genuine Shimano replacement parts. • Obtain and read the service instructions carefully prior to installing the parts. If adjustments are not carried out correctly, the chain may come off and this may cause you to fall off the bicycle which could result in serious injury. • Read these Technical Service Instructions carefully, and keep them in a safe place for later reference. Note • Make sure that the chainring combination matches the front chainwheel tooth configuration in the Product specifications table. If other combinations are used, the distance between the chainrings will be incorrect and the chain might slip off and get caught in between them. • When the chain is in the position shown in the Front illustration, the chain may contact the front chainrings chainrings or front derailleur and generate noise. If the noise is a problem, shift the chain onto the next-larger rear sprocket or the one Rear after. sprockets • If the bottom bracket shell is not parallel, gear shifting performance will drop. • Before riding the bicycle, check that there is no play or looseness in the connection. Also, be sure to retighten the crank arms and pedals at periodic intervals. • If a squeaking noise is heard coming from the bottom bracket axle and the left crank arm connector, apply grease to the connector and then tighten it to the specified torque. • If you feel any looseness in the bearings, the bottom bracket should be replaced. • In addition, if pedaling performance does not feel normal, check this once more. • Do not wash the bottom bracket with high-pressure jets of water. • Apply grease to the left and right adapters before installing them. • To ensure the best performance, be sure to use only the specified type of chain. The wide type of chain cannot be used. • If the chain keeps coming off the chainrings during use, replace the chainrings and the chain. • You should periodically wash the chainrings in a neutral detergent and then lubricate them again. In addition, cleaning the chain with neutral detergent and lubricating it can be an effective way of extending the useful life of the chainrings and the chain. • Parts are not guaranteed against natural wear or deterioration resulting from normal use. • For maximum performance we highly recommend Shimano lubricants and maintenance products. • For any questions regarding methods of installation, adjustment, maintenance or operation, please contact a professional bicycle dealer. Technical Service Instructions FC-M770 / FC-M771-K ■ Spacer installation method Specifications 1 Check whether the width of the bottom bracket shell Model number FC-M770 FC-M771-K Chainwheel tooth combination 44-32-22T 48-36-26T 104 mm / 64 mm 104 mm / 64 mm Bolt circle diameter Crank arm length is 68 mm or 73 mm. 2 Next, install the adapter while referring to the Spacer 165 mm, 170 mm, 175 mm, 180 mm 165 mm, 170 mm, 175 mm, 180 mm Chain line 50 mm 50 mm 68, 73 mm 68, 73 mm BC1.37 (68, 73 mm) BC1.37 (68, 73 mm) Bottom bracket shell width Thread dimensions 68mm 73mm illustrations below. < FC-M770 > F A F B F C 2.5 mm 1.8 mm 0.7 mm Band Type 68 mm 73 mm Be sure to read the service instructions for the Front Drive System in conjunction with these service instructions. Installation of the Front Chainwheel F A ■ Follow the procedure in the figure. F A F A Bracket Type 1, 2 Use the special tool TL-FC32/36 to install the right adapter (counterclockwise thread) and the left 68 mm adapter (clockwise thread). Tightening torque: 35 - 50 N·m {305 - 435 in. lbs.} 3 4 5 Insert the right crank unit. 6 Push in the stopper plate and check that the plate pin is securely in place, and then tighten the bolt of the left crank arm. (5 mm Allen key) Note : Each of the bolts should be evenly and equally tightened to 12 - 14 N·m {106 - 122 in. lbs.}. Set section A of the left crank into the axle of the right crank unit where the groove is wide. F A BB mount-type bracket F A Use the TL-FC16/18 to tighten the cap. Tightening torque: 0.7 - 1.5 N·m {6 - 13 in. lbs.} 73 mm F A < FC-M771-K > Band Type 68 mm F B F C 73 mm (A) TL-FC32 4 F A 68 mm 1 5 F A F A Chaincase Stay Type Wide groove area Chaincase stay F A 73 mm F C F A F C Bracket Type 68 mm TL-FC16 6 2 F A F A Inner cover 73 mm F A For bracket type 3 Bottom bracket shell BB mount-type bracket Front Derailleur Install as shown in the illustration. Front Chainwheel Plate pin Bolt Note : Set the stopper plate in the right direction as shown in illustration. Stopper plate Push up Adapter Adapter Tightening torque : 35 - 50 N·m {305 - 435 in. lbs.} SI-1J10A-002 Apply grease to the left and right adapters before installing them. One Holland, Irvine, California 92618, U.S.A. Phone: +1-949-951-5003 Industrieweg 24, 8071 CT Nunspeet, The Netherlands Phone: +31-341-272222 3-77 Oimatsu-cho, Sakai-ku, Sakai-shi, Osaka 590-8577, Japan * Service Instructions in further languages are available at : http://techdocs.shimano.com These service instructions are printed on recycled paper. Please note: specifications are subject to change for improvement without notice. (English) © May 2009 by Shimano Inc. XBC SZK Printed in Japan. SI-6MPFA-003-00 General Safety Information Specifications Front Derailleur WARNING • Use neutral detergent to clean the chain. Do not use alkali-based or acid based detergent such as rust cleaners as it may result in damage and/or failure of the chain. • Use the reinforced connecting pin only for connecting the narrow type of chain. • There are two different types of reinforced connecting pins available. Be sure to check the table below before selecting which pin to use. Reinforced If connecting pins other than reinforced connecting pins Chain Chain tool connecting pin are used, or if a reinforced connecting pin or tool which is not suitable for the type of chain is used, sufficient 9-speed super narrow Silver connection force may not be obtained, which could chain such as TL-CN32 / TL-CN27 6.5mm CN-7701 / CN-HG93 cause the chain to break or fall off. 8- / 7- / 6-speed narrow • If it is necessary to adjust the length of the chain due Black chain such as TL-CN32 / TL-CN27 to a change in the number of sprocket teeth, make the 7.1mm CN-HG50 / CN-HG40 cut at some other place than the place where the chain has been joined using a reinforced connecting pin or an end pin. The chain will be damaged if it Reinforced Connecting Pin is cut at a place where it has been joined with a reinforced connecting pin or an end pin. • Be careful not to let the cuffs of your clothes get caught in the chain while riding, otherwise you may fall off the bicycle. • Check that the tension of the chain is correct and that the chain is not damaged. If the tension End Pin Link Pin is too weak or the chain is damaged, the chain should be replaced. If this is not done, the chain may break and cause serious injury. • Use a front chainwheel which is compatible with 9-speed chains in conjunction with Shimano CN-7701, CN-HG93 and CN-HG73 chains. If a chainwheel for an 8-speed chain or less is used, front chainwheel gear shifting problems may occur, or the chain pins might fall out, causing the chain to break. • The two left crank arm mounting bolts should be tightened alternately in stages rather than each bolt being fully tightened all at once. Use a torque wrench to check that the final tightening torques are within the range of 12 - 14 N·m. Furthermore, after riding approximately 100 km (60 miles), use a torque wrench to re-check the tightening torques. It is also important to periodically check the tightening torques. If the tightening torques are too weak or if the mounting bolts are not tightened alternately in stages, the left crank arm may come off and the bicycle may fall over, and serious injury may occur as a result. • Check that there are no cracks in the crank arms before riding the bicycle. If there are any cracks, the crank arm may break and you may fall off the bicycle. • If the inner cover is not installed correctly, the axle may rust and become damaged, and the bicycle may fall over and serious injury may occur as a result. • Obtain and read the service instructions carefully prior to installing the parts. Loose, worn or damaged parts may cause the bicycle to fall over and serious injury may occur as a result. We strongly recommend only using genuine Shimano replacement parts. • Obtain and read the service instructions carefully prior to installing the parts. If adjustments are not carried out correctly, the chain may come off and this may cause you to fall off the bicycle which could result in serious injury. • Read these Technical Service Instructions carefully, and keep them in a safe place for later reference. Note • In addition, if pedaling performance does not feel normal, check this once more. • Before riding the bicycle, check that there is no play or looseness in the connection. Also, be sure to retighten the crank arms and pedals at periodic intervals. • If a squeaking noise is heard coming from the bottom bracket axle and the left crank arm connector, apply grease to the connector and then tighten it to the specified torque. • Do not wash the bottom bracket with high-pressure jets of water. • If you feel any looseness in the bearings, the bottom bracket should be replaced. • If gear shifting operations do not feel smooth, wash the derailleur and lubricate all moving parts. • If the amount of looseness in the links is so great that adjustment is not possible, you should replace the derailleur. • You should periodically wash the chainrings in a neutral detergent and then lubricate them again. In addition, cleaning the chain with neutral detergent and lubricating it can be an effective way of extending the useful life of the chainrings and the chain. • If the chain keeps coming off the chainrings during use, replace the chainrings and the chain. Front • When the chain is in the position shown in the illustration, the chain may contact the front chainrings chainrings or front derailleur and generate noise. If the noise is a problem, shift the chain onto the next-larger rear sprocket or the one after. • Apply grease to the left and right adapters before installing them. Rear • For smooth operation, use the specified outer casing and the bottom bracket cable guide. sprockets • This front derailleur is for triple front chainwheel use only. It cannot be used with the double front chainwheel, as the shifting points do not match. • When installing the top route type, choose a frame that has three outer casing holders as shown in the Outer casing holders illustration at right. • Use an outer casing which still has some length to spare even when the handlebars are turned all the way to both sides. Furthermore, check that the shifting lever does not touch the bicycle frame when the handlebars are turned all the way. • A special grease is used for the gear shifting cable (SIS-SP41). Do not use DURA-ACE grease or other types of grease, otherwise they may cause deterioration in gear shifting performance. • Grease the inner cable and the inside of the outer casing before use to ensure that they slide properly. • Operation of the levers related to gear shifting should be made only when the front chainwheel is turning. • If the brake fluid used in the oil disc brakes is of a type which tends to adhere to the plastic parts of the shifting lever, this may cause the plastic parts to crack or become discolored. Therefore, you should make sure that the brake fluid does not adhere to these plastic parts. The mineral oil which is used in SHIMANO disc brakes does not cause cracking or discoloration if it adheres to plastic parts, but such parts should be cleaned with alcohol beforehand to prevent foreign particles from adhering. • Do not disassemble the indicator and shifting lever unit, as this may damage them or cause mis-operation. • Parts are not guaranteed against natural wear or deterioration resulting from normal use. • For maximum performance we highly recommend Shimano lubricants and maintenance products • For any questions regarding methods of installation, adjustment, maintenance or operation, please contact a professional bicycle dealer. X = Available Model number FD-M770-E FD-M770 Normal type X Top route type SI-6MPFA-003 Front Drive System FD-M772 / M772A FD-M773 X X X X X X Front chainwheel tooth difference 22T 22T 22T 22T Min. difference between top and intermediate 12T 12T 12T 12T – S, M, L S, M, L S, M, L Chainstay angle (a) 66° - 69° 66° - 69° 66° - 69° 63° - 66° Applicable chain line 50 mm 50 mm 50 mm 50 mm 44T 44T / 48T 44T 44T / 48T Front derailleur installation band diameter Applicable front chainwheel Installation band diameters: S (28.6 mm), M (31.8 mm), L (34.9 mm) When using the S, M size, use an installation band with a diameter of 28.6 mm, 31.8mm and install it to a L size adapter. • FD-M770/ FD-M772/ FD-M772A When installing the components to carbon frame/handle bar surfaces, verify with the manufacturer of the carbon frame/parts for their recommendation on tightening torque in order to prevent over tightening that can cause damage to the carbon material and/or under tightening that can cause lack of fixing strength for the components. < Normal type > The level section of the chain guide outer plate should be directly above and parallel to the largest chainring. Secure using a 5 mm Allen key. FC-M770 FC-M771-K Chainwheel tooth combination 44-32-22T 48-36-26T Note: Pass the cable through as shown in the illustration. Bolt circle diameter Crank arm length Chain length 104 mm / 64 mm 104 mm / 64 mm 165 mm, 170 mm, 175 mm, 180 mm 165 mm, 170 mm, 175 mm, 180 mm Chain line 50 mm 50 mm 68, 73 mm 68, 73 mm BC1.37 (68, 73mm) BC1.37 (68, 73mm) Bottom bracket shell width Thread dimensions Applicable bottom bracket FD-M771 Largest sprocket Wire fixing bolt Tightening torque : 6 - 7 N·m {52 - 60 in. lbs.} SM-BB70 Installation of the lever After taking up the initial slack in the cable, re-secure to the front derailleur as shown in the illustration. Use a handlebar grip with a maximum outer diameter of 36 mm. Gear shifting operation This release lever is equipped with a 2-way release mechanism which allows release operations to be carried out by either pushing or pulling the lever. Both lever (A) and lever (B) always return to the initial position when they are released after shifting. When operating one of the levers, always be sure to turn the crank arm at the same time. To shift from a small chainring to a larger chainring To shift from a large chainring to a smaller chainring When lever (A) is pressed once, there is a shift of one step from a small chainring to a larger chainring. When lever (B) is pressed once, there is a shift of one step from a large chainring to a smaller chainring. from intermediate chainring to largest chainring. Tightening torque : 2.5 N·m {22 in. lbs.} Outboard Lever (A) initial position Inboard 2-way release Installation of the Front Chainwheel and Front Derailleur 1, 2 Use the special tool TL-FC32/36 to install the right adapter 3 4 Insert the right crank unit. Wide groove area Set section A of the left crank into the axle of the right crank unit where the groove is wide. 5 Use the TL-FC16/18 to tighten the cap. Tightening torque: 0.7 - 1.5 N·m {6 - 13 in. lbs.} 6 Push in the stopper plate and check that the plate pin is securely in place, and then tighten the bolt of the left crank arm. (5 mm Allen key) Note : Each of the bolts should be evenly and equally tightened to 12 - 14 N·m {106 - 122 in. lbs.}. SIS Adjustment TL-FC16 6 Pro-Set alignment block 2 Plate pin Bracket Type F A F A F A Band Type BB mounttype bracket F A 68 mm *1 F A 73 mm F B F C F A 73 mm F A F B F C 2.5 mm 1.8 mm 0.7 mm Chaincase Stay Type 68 mm F A *2 Bracket Type Chaincase stay 68 mm F C F A 73 mm F A F A BB mounttype bracket F A SIS-SP41 Front derailleur Front chainwheel Chain Bottom bracket cable guide F A F A FD-M770 / FD-M771 / FD-M772 / FD-M773 / FD-M770-E / FD-M772A FC-M770 / FC-M771-K CN-HG93 SM-SP17 / SM-BT17 For bracket type Install as shown in the illustration. Front Derailleur Largest sprocket FD-M770/ M772/M772A Smallest chainring A B Chain guide inner plate Chain 2. Connecting and securing the inner cable Operate lever (B) two times or more, and check on the indicator that the lever is at the lowest position. Then remove the inner hole cover and connect the inner cable. Lever (B) Inner cable Inner hole cover Cutting the outer casing When cutting the outer casing, cut the opposite end to the end with the marking. After cutting the outer casing, make the end round so that the inside of the hole has a uniform diameter. Attach the same outer end cap to the cut end of the outer casing. 3-77 Oimatsu-cho, Sakai-ku, Sakai-shi, Osaka 590-8577, Japan * Service Instructions in further languages are available at : http://techdocs.shimano.com Please note: specifications are subject to change for improvement without notice. (English) © Apr. 2009 by Shimano Inc. XBC SZK Printed in Japan. Adapter Adapter Outer end cap Tightening torque : 35 - 50 N·m {305 - 435 in. lbs.} Intermediate chainring A B Chain guide inner plate Chain B A Outer casing adjustment barrel 5. Troubleshooting chart After completion of steps 1 - 4, move the shifting lever to check the shifting. (This also applies if shifting becomes difficult during use.) If the chain falls to the crank side. Tighten the top adjustment screw clockwise (about 1/4 turn). If shifting is difficult from the intermediate chainring to the largest chainring. Loosen the top adjustment screw counterclockwise (about 1/8 turn). If shifting is difficult from the intermediate chainring to the smallest chainring. Loosen the low adjustment screw counterclockwise (about 1/4 turn). Tighten the top adjustment screw If there is interference between the chain and the front derailleur clockwise (about 1/8 turn). inner plate at the largest chainring. If the intermediate chainring is skipped when shifting from the largest chainring. Pro-Set gauge One Holland, Irvine, California 92618, U.S.A. Phone: +1-949-951-5003 Industrieweg 24, 8071 CT Nunspeet, The Netherlands Phone: +31-341-272222 Pro-Set alignment block Gear teeth should come within this range When carrying out adjustment, set the chain to the largest sprocket, and at the front, set the chain to the intermediate chainring. Adjust using the outer casing adjustment barrel so that the clearance between the chain guide inner plate and the chain is 0 - 0.5 mm. Loosen the top adjustment screw If there is interference between the chain and the front derailleur counterclockwise (about 1/8 turn). outer plate at the largest chainring. Install the inner hole cover by turning it as shown in the illustration until it stops. Do not turn it any further than this, otherwise it may damage the screw thread. Adjust and then install the front derailleur as shown in the illustration. Do not remove the Pro-Set alignment block at this time. Front Chainwheel Bolt This service instruction explains how to use and maintain the Shimano bicycle parts which have been used on your new bicycle. For any questions regarding your bicycle or other matters which are not related to Shimano parts, please contact the place of purchase or the bicycle manufacturer. F C If using three 2.5 mm spacers with a band type and a bottom bracket shell having a width of 68 mm, install the three spacers so that there are two on the right and one on the left. *2 1.8 mm corresponds to the thickness of the chain case. 4. Adjustment of the intermediate chainring Low adjustment screw Chain position 73 mm *1 Chain B A Spacer < FC-M771-K > 68 mm F A Push up Stopper plate Top adjustment screw FD-M771/M773 Chain guide outer plate Largest sprocket 3 Note : Set the stopper plate in the right direction as shown in illustration. Largest chainring Chain position FD-M771/M773 Inner cover (1) Check whether the width of the bottom bracket shell is 68 mm or 73 mm. (2) Next, install the adapter while referring to the illustrations below. 68 mm 1. Low adjustment First remove the Pro-Set alignment block . Next, set so that the clearance between the chain guide inner plate and the chain is 0 - 0.5 mm. ■ Spacer installation method < FC-M770 > Be sure to follow the sequence described below. 1 5 FD-M770/M772/M772A Set so that the clearance between the chain guide outer plate and the chain is 0 - 0.5 mm. 3 mm Allen key • Install the shifting lever in a position where it will not obstruct brake operation and gear shifting operation. • Do not use in a combination which causes brake operation to be obstructed. 4 (counterclockwise thread) and the left adapter (clockwise thread). Tightening torque: 35 - 50 N·m {305 - 435 in. lbs.} 3. Top adjustment Smallest sprocket 3 mm Allen key TL-FC32 Pull Chain position Lever (B) Follow the procedure in the figure. Top route type Pull If not using the indicator, this shifting lever can be installed either on the inside or the outside of the brake lever. If adjusting the position, remove the indicator, and then be sure to secure it in the new position with the two fixing bolts. from largest chainring to intermediate chainring. Normal type Tightening torque : 5 N·m {44 in. lbs.} 4 mm Allen key Example: Example: FD-M773 Largest chainring Chain XT Outer casing 5 mm Allen key • FD-M771/FD-M773 Add 2 links (with the chain on both the largest sprocket and the largest chainring) In order to realize the best performance, we recommend that the following combination be used. SL-M770 Wire fixing bolt Chain guide Tightening torque : 5 - 7 N·m {44 - 60 in. lbs.} Inner hole cover Rapidfire (Shifting lever) Note: Pass the cable through as shown in the illustration. Chainwheel (largest chainring) Chainstay angle Model number 73 mm Series < Top route type > Chainwheel Band Type Technical Service Instructions FD-M771 X ■ Note Loosen the outer casing adjustment barrel counterclockwise (1 or 2 turns). If there is interference between Tighten the outer casing the chain and front derailleur adjustment barrel clockwise inner plate when the rear (1 or 2 turns). sprocket is shifted to the largest sprocket when the chainwheel is at the intermediate chainring position. If the chain falls to the bottom bracket side. Tighten the low adjustment screw clockwise (about 1/2 turn). If the lever is stiff when shifting from the intermediate chainring to the largest chainring Loosen the top adjustment screw counterclockwise (about 1/4 turn). ■ Refer to the Service Instructions for the Rear Drive System for details on replacing and installing the indicator unit.
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