User manual SHIMANO HB-M988 ASSEMBLY

[. . . ] Before riding, you should carefully check your hubs to make sure that there are no cracks in the axles , and if you find any sign of a crack or any other unusual condition, do NOT use the bicycle. · The HB-M988 can be used in combination with a special front fork and the EThru. If it is used in combination with any other front fork or fixed axle, it may cause the wheel to become detached from the bicycle while you are riding and result in serious bodily injury. [. . . ] If any oil or grease gets on the rotor, you should clean the rotor. If this is not done, the brakes may not work correctly. · If the E-Thru lever is on the same side as the rotor, there is the danger that it may interfere with the rotor, so check E-Thru lever that it does not interfere. · Check that the wheels are fastened securely before riding the bicycle. If the wheels are loose in any way, they Rotor may come off the bicycle and serious injury may 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. · Read these Technical Service Instructions carefully, and keep them in a safe place for later reference. · Be sure to carefully read the Service Instructions for the disc brakes also. Technical Service Instructions SI-27X0A-002 < Assembly > Install the axle pipe, and then use the special tools to tighten the lock nut so as to double-lock the mechanism as shown in the illustration. If using a hub spanner on the beveled parts of the left-hand axle cap, be careful not to apply excessive torque, otherwise damage may occur. TL-7S20 HB-M988 Front hub In order to realize the best performance, we recommend that the following combination be used. Series Caliper Brake Lever Rotor XTR BR-M985 BL-M985 SM-RT98 Tightening torque: 21 - 26 N·m {183 - 226 in. lbs. } Tighten Specifications Front hub Model No. of spoke holes HB-M988 32 Axle pipe TL-7S20 Wheel spoke lacing Rotating direction of wheel Front left Front right Maintenance These units can be disassembled as shown in the illustrations. Grease should be applied to each part at periodic intervals. of balls: 15 Ball size: 5/32" · Right No. of balls: 17 Ball size: 5/32" Applying grease DURA-ACE grease (Y-04110000) Check that the spokes have been laced as shown in the illustration. [. . . ] · For maximum performance we highly recommend Shimano lubricants and maintenance products. Dust cover Note: · It cannot be disassembled from the left side of the hub (the side with the fixed rotor serrations). · When removing and installing the seal, do it very carefully so that the seal does not become bent. When reinstalling the seal, make sure that it is facing the right way, and insert it as far as it will go. [. . . ]