Thomas
®
XTSR52 Installation and Maintenance
(Page 2 of 13)
Sizes 494-5258
CP3-002
September 2017
Supersedes 09-2016
Rexnord
5555 S. Moorland Rd., New Berlin, WI 53151-7953
Phone: 262-796-4060 Fax: 262-796-4064 www.rexnord.com
2. Safety and Advice Hints
DANGER!
2.1 Safety should be a primary concern in all aspects of coupling installation, operation, and maintenance.
2.2 Do not make contact with the coupling when it is rotating and/or in operation.
2.3 Because of the possible danger to person(s) or property from accidents which may result from improper use or installation of these products, it is
extremely important to follow the proper selection, installation, maintenance and operational procedures.
2.4 Installation should be carried out by skilled personnel only. All personnel involved in the installation, service, operation, maintenance, and repair of
this coupling and the connected equipment must read, understand, and comply with these Installation and Maintenance instructions. The Installa-
tion and Maintenance instructions and assembly drawing, if provided, must be at hand at the installation site.
PRECAUTION
For this coupling to meet the ATEX requirements, you must precisely follow these installation and maintenance instructions, and the supplement form
0005-08-49-01. This supplement outlines the ATEX requirements. If the operator does not follow these instructions, the coupling will immediately be
considered non-conforming to ATEX.
2.5 All rotating power transmission products are potentially dangerous and can cause serious injury. They must be properly guarded in compliance with
OSHA, ANSI, ATEX, European machine safety standards and other local standards. It is the responsibility of the user to provide proper guarding.
2.6 The coupling should be stored in a dry corrosion protected environment, free from external loads (for example by stacking) to prevent damage
which may cause a hazard when the coupling is put into service.
2.7 For ATEX requirements the guard must have a minimum of 12.7 mm (1/2 in) radial clearance to the coupling outside diameter and allow for proper
ventilation.
2.8 All conductive parts of the equipment should be connected in such a way that hazardous electrical potential differences cannot occur. In case insu-
lated metal parts could be charged thus becoming a potential ignition source, earth connections must be provided.
2.9 Make sure to disengage the electrical power and any other sources of potential energy before you perform work on the coupling.
2.10 Packaging material can generate electrostatic charges. It may then become an explosive hazard. It must be removed from the coupling outside any
hazardous areas.
2.11 Proper lockout-tag out procedures must be followed to safeguard against unintentional starting of the equipment.
2.12 All work on the coupling must be performed when the coupling is at rest with no load.
2.13 Do not start or jog the motor, engine, or drive system without securing the coupling components. If the equipment is started with only a hub
attached, the hub must be properly mounted and ready for operation, with the key and set screw (if included) fastened. When the full coupling as-
sembly is started, all fasteners and hardware must be completely and properly secured. Do not run the coupling with loose fasteners.
2.14 Use explosive environment appropriate tools only, for more information see DIN EN 1127-1:2008:02, Annex A.
2.15 The coupling may only be used in accordance with the technical data provided in the Thomas disc coupling catalog. Customer modifications and
alterations to the coupling are not permissible.
2.16 All spare parts for service or replacement must originate from or be approved by Rexnord.
