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SHIMANO NEXUS 7-SPEED HUB SG-7C26 SERVICE MANUAL vol.
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Disassembly of the Inter-7 hub SG-7C26 Note: Unit parts should never be disassembled. If they are, problems may result. When replacing parts, replace the whole internal assembly or unit part. Tools Note: Screwdriver (Left) Before carrying out disassembly, have ready TL-7S20 (Right) the hub spanners(TL-7S20)
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Remove the brake arm unit and ball retainer B from the hub axle. Brake arm unit Ball retainer B Remove the hub shell. Hub shell Internal assembly Now it can be replaced with the new internal assembly. Disassembly and assembly can be carried out quickly.
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Remove the stop ring with a screwdriver. At this time, the stop ring come off with great force. Be careful of the safety using cloth and so on. Screwdriver Stop ring Remove ring gear unit 2 and After removing them at the same carrier unit 2 at the same time time, remove carrier unit 2 from while turning ring gear unit 2...
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Remove ring gear unit 1 while turning it slightly to the left and right. Ring gear unit 1 Remove ball retainer H while pressing in pawl C on the driver and axle unit with a screwdriver. Be careful not to bend ball Pawl C retainer H.
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Assembly of the Inter-7 hub Hold the two bevelled surfaces of the hub axle on the sprocket side in a vice. Note: Do not damage the threads of the hub axle. Vice Note: Install ball retainer H while Be careful of the pressing in pawl C on the setting direction.
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Engage the teeth of the planet Note: pinion in carrier unit 1 with Apply a liberal coating of internal the teeth of ring gear unit 1, hub grease to the planet pinions and then press in ring gear (3 places) in carrier unit 1. unit 1 while turning it slightly to the left and right.
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Note: Engage the teeth of the planet Apply a liberal coating of internal pinion in carrier unit 2 with hub grease to the teeth of the teeth of ring gear unit 2 the planet pinion (3 places) in while turning carrier unit 2 carrier unit 2.
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Note: Place ball retainer B onto Be careful of the setting the hub shell. direction. Apply a liberal coating of internal hub grease. Ball retainer B Hub shell GREASE (Y-041 20800) Place the brake arm unit onto the hub axle and turn it to the left and right so that Brake arm unit Serrations...
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