DT SWISS Ratchet LN User manual
TECHNICAL MANUAL
V2021.06
2
1. GENERAL .................................................................................................................3
1.1 Validity.......................................................................................................................... 3
1.2 Safety ........................................................................................................................... 3
1.3 Target group................................................................................................................. 3
1.4 Layout........................................................................................................................... 3
1.5 DT Swiss manual concept ........................................................................................... 3
1.6 How to use the manual ............................................................................................... 4
1.7 General maintenance information.............................................................................. 4
1.8 Environmental protection............................................................................................ 4
1.9 Exclusion of liability..................................................................................................... 4
1.10 Warranty....................................................................................................................... 4
2. RATCHET LN - REAR HUB SERVICE....................................................................... 5
2.1 Overview....................................................................................................................... 5
2.2 Required wearing parts and materials....................................................................... 6
2.3 Required tools.............................................................................................................. 6
2.4 Removing the end caps ............................................................................................... 6
2.5 Dismounting the freewheel body and the freewheel system .................................... 7
2.6 Dismounting the ring nut ............................................................................................ 8
2.7 Dismounting the ball bearing on the non drive side.................................................. 8
2.8 Dismounting the ball bearing at the drive side.......................................................... 9
2.9 Cleaning and checking all parts ................................................................................. 11
2.10 Mounting the ball bearing at the drive side................................................................ 11
2.11 Mounting the ring nut.................................................................................................. 12
2.12 Mounting the ball bearing at the non drive side ........................................................ 15
2.13 Assembling the freewheel system and the freewheel body ...................................... 16
2.14 Mounting the end cap.................................................................................................. 17
3. TROUBLE SHOOTING...............................................................................................18
Ratchet LN - Technical Manual 3
1. GENERAL
1.1 VALIDITY
This manual describes the component specied on the front page and the footer. This manual is valid for the
design of the product as of 07.06.21. Deviations are possible and all items are subject to technical changes.
1.2 SAFETY
The safety instructions are classied as follows:
DANGER
...indicates a hazardous situation that, if not avoided, will result in death or serious injury.
CAUTION
… indicates a hazard with a medium level of risk which, if not avoided, may result in minor or moderate
injury.
NOTICE
… indicates a potentially hazardous situation that may result in damage to property.
1.3 TARGET GROUP
This manual is intended for the user of the component and dealers. This manual offers the experienced user
the possibility to carry out minor service work himself. If you have any doubts about your own abilities, you
should denitely contact a specialist or a DT Swiss Service Center.
Any warranty claims will lapse if work is not carried out properly.
1.4 LAYOUT
The cover page and the footing provide information about the type of product and manual as well as the
version of the manual. The DT Swiss contact details can be found on the back. A list of all DT Swiss service
centers can be found at www.dtswiss.com.
This manual is intended for being printed as an A5 booklet. Only print this manual if electronic usage is not
possible.
1.5 DT SWISS MANUAL CONCEPT
The DT Swiss manuals are split into the following types of manuals:
• User Manual: Information for the end user on how to install and use the component.
• Technical Manual: Detailed information for the end user and the dealer on how to maintain the
component, spare parts and technical data.
4
1.6 HOW TO USE THE MANUAL
The steps described in this manual must be carried out in the order they are shown. If steps are ignored or
executed in a wrong order, the function of the component cannot be guaranteed.
1.7 GENERAL MAINTENANCE INFORMATION
Unless otherwise specied, moving parts, threads, O-rings and seals must be greased before assembly.
CLEANING
For an optimal result of the maintenance work, every component that will be disassembled must be cleaned.
Only use cleaners which do not damage the components. Especially the cleaning of O-rings and seals
requires mild cleaners. Observe the instructions for use of the respective cleaner.
DT Swiss recommends the following cleaners:
• Motorex Rex
• Motorex Swissclean
• Motorex OPAL 2400, 3000 OPAL, OPAL 5000
Use soap water or similar mild cleaners for external cleaning.
TOOLS
To ensure a damage-free mounting and dismounting of the components, only use the tools which are
mentioned in this manual. Special tools are indicated at the beginning of a chapter in the table "Required
material".
The use of different tools is at the discretion of the user. If components are damaged by the usage of differing
tools, the user is liable.
DT Swiss special tools are precision tools. Damage-free mounting and dismounting of the components can
only be ensured if the tools are working properly and if the condition of the tools are perfect. Always keep the
tools in their original packaging or adequate devices to prevent damage.
1.8 ENVIRONMENTAL PROTECTION
The statutory regulations shall apply. Whenever possible, avoid creating waste. Waste, especially carbon,
lubricants, cleaners and any other uids must be disposed in an environmentally compatible manner.
Only print this manual if electronic usage is not possible.
1.9 EXCLUSION OF LIABILITY
The activities listed in this manual may only be carried out by persons with sufcient specialist knowledge.
The user is liable for any damage or consequential damage caused by wrongly maintained or installed
components. If you have doubts, please contact your region's DT Swiss pro level service center.
1.10 WARRANTY
Warranty conditions, see www.dtswiss.com
Ratchet LN - Technical Manual 5
2. RATCHET LN - REAR HUB SERVICE
Preparatory Steps: Link
Dismount the brake rotor
Dismount cassette
Clean the hub
2.1 OVERVIEW
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45678910 10 9
12 13
11
1 end cap non drive side 6 shim ring 11 hub seal
2 ball bearing non drive side 7 ring nut 12 freewheel body
3axle 8 spacer 13 end cap drive side
4 hub shell 9 spring
5 ball bearing drive side 10 ratchet
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