CAMPAGNOLO Ekar RD21 Bedienungsanleitung

CAMPAGNOLO.COM

REPLACING THE JOCKEY CAGE OF THE

REAR DERAILLEUR (RD21-EK13)

REPLACING THE JOCKEY CAGE - Rev. 01/ 06-2021 CAMPAGNOLO COMPONENTS - TECHNICAL MANUAL

Always wear protective gloves and glasses while working on the bicycle.

WARNING!

REPLACING THE JOCKEY CAGE - Rev. 01/ 06-2021 CAMPAGNOLO COMPONENTS - TECHNICAL MANUAL

REPLACING THE EKAR JOCKEY CAGE

THIS TECHNICAL MANUAL IS INTENDED FOR USE BY PROFESSIONAL MECHANICS.

Anyone who is not a qualied professional for bicycle assembly must not attempt to install and operate on

the components independently due to the risk of carrying out incorrect operations which could cause the

components to malfunction, resulting in accidents, physical injury or even death.

The actual product may dier from what is illustrated, as the specic purpose of these instructions is to

explain the procedures for using the component.

1.1 - TOOLS REQUIRED

ALLEN WRENCH TORX WRENCH T15

FIXED WRENCH FIXED WRENCH

8 mm

30 mm 8 mm

T15

Tools supplied by other manufacturers for components similar to Campagnolo®components, may

not be compatible with Campagnolo®components. Likewise, tools supplied by Campagnolo s.r.l.

may not be compatible with components supplied by other manufacturers. Always check with your

mechanic or the tool manufacturer to insure compatibility before using tools supplied by one manu-

facturer on components supplied by another.

1 - DISASSEMBLING THE EKAR REAR DERAILLEUR JOCKEY CAGE

(RD21-EK13)

The operations described in this procedure are only applicable to jockey cage

code RD21-EK13.

REPLACING THE JOCKEY CAGE - Rev. 01/ 06-2021 CAMPAGNOLO COMPONENTS - TECHNICAL MANUAL

1) Grasp the body and rotate the jockey

cage anti-clockwise until the screw is visible

(A - Fig.1).

2) Keeping the jockey cage locked, remove

the screw (A - Fig.2).

3) Accompany the jockey cage until the

spring is completely unloaded (Fig. 3).

WARNING!

Left-hand thread.

WARNING!

The rear derailleur is spring-loaded

and will quickly return to its starting

position.

Pay special attention when accom-

panying the jockey cage and keep

your fingers well away from points

at risk of crushing.

4) Remove the clutch cover (Fig.4 / Fig. 5).

WARNING!

Left-hand thread.

Fig.1 Fig.2

Fig.4 Fig.5

8 mm

30 mm

Fig.3

REPLACING THE JOCKEY CAGE - Rev. 01/ 06-2021 CAMPAGNOLO COMPONENTS - TECHNICAL MANUAL

5) Remove the jockey cage fixing nut (Fig.6

/ Fig.7).

6) Use a T15 Torx wrench to remove the

nut on the jockey cage side, acting on the

clutch shaft (Fig.8 / Fig.9).

7) Remove the jockey cage and the sealing

ring (Fig. 10).

Fig.6 Fig.7

8 mm

Fig.8 Fig.9

T15

Fig.10

REPLACING THE JOCKEY CAGE - Rev. 01/ 06-2021 CAMPAGNOLO COMPONENTS - TECHNICAL MANUAL

2 - ASSEMBLING THE EKAR REAR DERAILLEUR JOCKEY CAGE

(RD21-EK13)

2.1 - TOOLS REQUIRED

Tools supplied by other manufacturers for components similar to Campagnolo®components, may

not be compatible with Campagnolo®components. Likewise, tools supplied by Campagnolo s.r.l.

may not be compatible with components supplied by other manufacturers. Always check with your

mechanic or the tool manufacturer to insure compatibility before using tools supplied by one manu-

facturer on components supplied by another.

Campagnolo spare parts must only be installed by qualied personnel with specialised knowledge, suitable

tools and sucient experience and who carefully follow the installation instructions. Failure to comply with

the above could result in product malfunctions, accidents, physical injury or death.

WARNING!

ALLEN WRENCH INSERT FOR ALLEN WRENCH

TORX WRENCH T15 INSERT FOR TORX WRENCH T15

TORQUE WRENCH INSERT FOR

TORQUE WRENCH

FIXED WRENCH

8 mm

30 mm

T15

REPLACING THE JOCKEY CAGE - Rev. 01/ 06-2021 CAMPAGNOLO COMPONENTS - TECHNICAL MANUAL

1) Insert the sealing ring, making sure it is

positioned correctly (Fig.1).

2) Apply “Loctite 2701” (Fig.2) to the clutch

shaft.

3) Install the jockey cage, hooking the spring

in the corresponding hole on the jockey

cage itself (Fig. 3).

4) Install the nut on the jockey cage side by

acting on the clutch shaft (Fig. 4).

Using a T15 Torx wrench, tighten to a torque

of 8 Nm (Fig.5).

Fig.1

Fig.2

Fig.3

Fig.4 Fig.5

T15

8 Nm

REPLACING THE JOCKEY CAGE - Rev. 01/ 06-2021 CAMPAGNOLO COMPONENTS - TECHNICAL MANUAL

6) Install the jockey cage fixing nut (Fig.7 /

Fig.7).

Tighten to a torque of 2.5 Nm (Fig.8).

5) Apply “Loctite 2701” (Fig. 6) to the jockey

cage fixing nut.

WARNING!

Observe the tightening torque.

A higher tightening torque could

damage the components inside the

rear derailleur, causing it to malfun-

ction.

7) Apply “Loctite medium 243” to the cover

(Fig.9).

8) Screw on the cover by hand (Fig.10).

9) Use an open-end spanner to tighten

the cover until a certain resistance is felt

(Fig.11).

WARNING!

Left-hand thread.

Fig.7 Fig.8

Fig.6

Fig.9

Fig.10 Fig.11

8 mm

30 mm

2 Nm

2,5 Nm

REPLACING THE JOCKEY CAGE - Rev. 01/ 06-2021 CAMPAGNOLO COMPONENTS - TECHNICAL MANUAL

10) Load the spring by turning the

jockey cage ONE (360°) complete turn

counterclockwise (Fig. 12).

WARNING!

The rear derailleur is spring-loaded

and will quickly return to its starting

position.

Pay special attention when accom-

panying the jockey cage and keep

your fingers well away from points

at risk of crushing.

11) Install the jockey cage end-stop screw

and, using a 3 mm Allen wrench, tighten the

screw to a torque of 1 Nm (Fig.13).

WARNING!

Left-hand thread.

Fig.13

1 Nm

Fig.12

360°

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