Park Tool Chain Checker User Manual

Cc-2 chain checker

Park Tool Co.

5115 Hadley Ave. N., St. Paul, MN 55128 (USA) www.parktool.com

CC-2 Chain Checker

Instructions:
1. Set pivoting gauge so “0” is visible in viewing window.
2. Lower CC-2 so fixed pin rests between chain’s outer plates

and movable pin rests between chain’s inner plates.

3. Lightly push pivoting gauge just until it stops. Forcing the

gauge will damage the CC-2’s pins, resulting in inaccurate
measurements. Read number in viewing window. Chain re-
placement is generally recommended at .75%, although this
percentage can vary between chain manufacturers. Contact
the manufacturer for specific recommendations.

A worn chain shifts poorly and wears sprockets at an accelerated
rate. The CC-2 Chain Checker provides a precise measurement of
chain wear on most derailleur chains.

Notes:
Because a chain must have a small amount of play in the links
to run smoothly, the CC-2 will show a reading of .25% to .5%
on new chains. This does not mean that the chain is .25% to
.5% worn. It only means there is .25% to .5% play built into the
links of the chain before it starts to wear. No matter what the
reading of a new chain, it should be replaced when the CC-2
shows a reading of .75 (or the percentage recommended by
the manufacturer).
The length of time and amount of riding it takes to wear a
chain is determined by several factors, including chain quality,
riding conditions, and level of maintenance. As a result, chain
life can vary significantly.

.25

.50

.75

1.0

.25

.50

.75

1.0

Moveable pin

Beweglicher Stift

Goupille mobile

Perno movible

Inner plates

Innere Laschen

Plaques intérieures

Placas interiores

Outer plates

äußere Laschen

Plaques extérieures

Placas exteriores

Fixed pin

Feststehender Stift

Goupille fixe

Perno fijo

Tool body

Werkzeugkörper

Corps de l’outil

Cuerpo de la herramienta

Pivoting Gauge

Schwenkbare Anzeige

Levier pivotant

Medidor de perno móvil