Shimano Ultegra FD-R8050 User Manual

(English)
DM-R8050-02
Dealer's Manual
ROAD MTB Trekking
City Touring/
Comfort Bike
URBAN SPORT E-BIKE
R8050 series
ULTEGRA
SW-R9150
SW-R9160
SW-R610
ST-R8050
ST-R8060
ST-R8070
FD-R8050
RD-R8050
BR-R8070
SM-EW90-A
SM-EW90-B
EW-RS910
EW-WU111
EW-SD50
EW-SD50-I
EW-JC130
SM-EWC2
SM-JC40
SM-JC41
SM-BTR1
BT-DN110
BM-DN100
SM-BA01
SM-BCR1
SM-BCR2
SM-BCC1
SM-RT800

Shimano Ultegra FD-R8050 Specifications

General

Brand	Shimano
Model	Ultegra FD-R8050
Category	Scooter
Language	English

Summary

To Ensure Safety

Lithium Ion Battery and Charger Safety

Safety precautions for lithium ion batteries, chargers, and associated cords.

Hydraulic Disc Brake Safety

Guidelines for safe operation and maintenance of hydraulic disc brakes.

Installation

Electric Wire Wiring Diagrams

Shows overall and junction-specific wiring configurations.

Dual Control Lever and Brake Cable Installation

Steps for installing levers and brake cables.

Front Derailleur Installation

Procedures for mounting the front derailleur.

Rear Derailleur Installation

Procedures for mounting the rear derailleur.

Shifting Switch Installation

Steps for installing shifting switches.

Junction A Installation (SM-EW90-A/B)

Junction A Installation (EW-RS910)

Junction B Installation

Wireless Unit Attachment

Battery Installation

Procedures for installing batteries.

Installation of Hydraulic Disc Brake System

Disc Brake Rotor Installation

Brake Hose Installation

Instructions for routing and connecting brake hoses.

Easy Hose Joint System Brake Hose Installation

Handlebar Installation

Mineral Oil and Air Bleeding

Procedure for adding oil and bleeding brakes.

Brake Caliper Installation

Steps for mounting the brake caliper.

Connection of Electric Wires

Junction A Connection

Junction B Connection

Connecting to Dual Control Lever

Routing Wires Inside Frame

Checking Connections

How to Operate

Gear Position Control

Adjustment

Rear Derailleur Adjustment

Steps for adjusting the rear derailleur.

Chain Installation and Length

Front Derailleur Adjustment

Procedures for adjusting the front derailleur.

Lever Stroke Adjustment

Free Stroke Adjustment (ST-R8070)

Charging the Battery

Charging Method

Troubleshooting Charging Issues

Maintenance

Bracket and Lever Body Disassembly (ST-R8050)

Switch Unit Assembly

Pulley Replacement

Brake Pad Replacement

How to change brake pads.

Mineral Oil Replacement

Procedure for changing brake fluid.