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Shimano SG-7R46 Service Manual

Shimano SG-7R46
12 pages
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SERVICE MANUAL
vol.1
SG-7R46
SHIMANO NEXUS 7-SPEED HUB
t
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Shimano SG-7R46 Specifications

General IconGeneral
Model NumberSG-7R46
SeriesNexus
CategoryIndustrial Equipment
Speed7-speed
Gear Ratio Total244%
Gear Change Support MechanismYes
Brake TypeRoller Brake
MaterialAluminum
TypeInternal Gear Hub
Spoke Hole36H

Summary

Disassembly of the Inter-7 Hub

Tools and Initial Setup for Disassembly

Lists necessary tools and the initial step of securing the hub axle in a vice for disassembly.

Removing Left Hand Cone and Dust Cap

Instructions for removing the left hand cone and dust cap from the hub axle.

Removing Ball Retainer and Hub Shell

Details the removal of ball retainer I and the hub shell from the hub assembly.

Removing Internal Gear Components

Covers the removal of stop springs, carrier units, and gear units from the hub.

Removing Final Internal Assembly Parts

Focuses on the removal of ball retainer M from the driver unit.

Assembly of the Inter-7 Hub

Initial Setup and Ball Retainer M Installation

Securing the hub axle in a vice and placing ball retainer M onto the driver unit.

Engaging Driver Unit and Planet Pinion

Connecting planet pinion teeth in carrier unit 1 with driver unit teeth, requiring careful turning.

Installing Sun Gear and Ring Gear Units

Engaging sun gear units and placing ring gear unit 2 onto carrier unit 1.

Installing Carrier, Ring Gear, and Stop Spring

Engaging carrier components and ring gear unit 2, and inserting the stop spring.

Final Assembly Steps and Adjustments

Installing internal assembly, ball retainer I, and adjusting the left hand cone.

Installing Right Hand Dust Cap

Attaching the right hand dust cap to the hub shell and checking for smooth rotation.

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