Knorr-Bremse Group
3
Doc. No. Y250903 (EN - Rev. 000)
July 2016
Copyright © Knorr-Bremse AG - all rights reserved, including industrial property rights applications. Knorr-Bremse AG retains any power of disposal, such as for copying and transferring.
Knorr-Bremse Systeme für Nutzfahrzeuge GmbH
.
Moosacher Straße 80
.
80809 Munich
.
Germany
.
Tel: +49 89 3547-0
.
Fax: +49 89 3547-2767
.
www.knorr-bremse.com
.
www.knorr-bremseCVS.com
Commercial Vehicle Systems
Safety and Environmental Guidelines
Note: The safety advice listed below is applicable to general service and diagnostic work on braking systems. Also
observe any recommendations from the axle or vehicle manufacturer concerning towing, jacking-up and securing
the vehicle.
CAUTION: KNORR-BREMSE IS NOT LIABLE FOR ANY INJURIES OR DAMAGES CAUSED BY IMPROPER USE
OF SPECIFIED SERVICE KITS AND/OR SERVICE TOOLS. FURTHERMORE, MISUSE OF TOOLS OR INCORRECT
INSTALLATION OR APPLICATION OF SERVICE KITS MAY RESULT IN DAMAGE OR POTENTIALLY UNSAFE
VEHICLE OPERATIONS. IN THIS CASE, KNORR-BREMSE DOES NOT HAVE ANY WARRANTY OBLIGATIONS.
Before and during working on or around compressed air systems and devices, the following precautions
should be observed:
1 Always wear safety glasses when working with air pressure.
2 Never exceed the vehicle manufacturer’s recommended air pressures.
3 Never look into air jets or direct them at anyone.
4 Never connect or disconnect a hose or line containing pressure; it may whip as air escapes.
5 When removing or servicing a product, ensure all pressure related to the specific system it is contained in has
been depleted to 0 bar. Be aware that if the vehicle is equipped with an air dryer system, it can also contain air
pressure along with its purge reservoir, if fitted, even after pressure has been drained from the other reservoirs.
6 If it is necessary to drain the air pressure from reservoirs, etc., keep away from brake actuator push rods and
levers since they may move as system pressure drops. On vehicles fitted with air suspension, it is advised when
undertaking such work, to support the chassis from sudden lowering and therefore prevent any possibility of
being trapped between the chassis and axle or ground.
7 Park the vehicle on a level surface, apply the parking brakes, and always chock the wheels as depleting vehicle
air system pressure may cause the vehicle to roll.
8 When working under or around the vehicle, and particularly when working in the engine compartment, the
engine should be shut off and the ignition key removed. Where circumstances require that the engine be running,
EXTREME CAUTION should be taken to prevent personal injury resulting from contact with moving, rotating,
leaking, heated or electrically charged components. Additionally, it is advisable to place a clear sign on or near
the steering wheel advising that there is work in progress on the vehicle.
9 When working on vehicles equipped with air suspension, to guard against injury due to unexpected downward
movement of the chassis caused by sudden pressure loss in the suspension system, ensure that the vehicle
chassis is mechanically supported with a ‘prop’ between the chassis and the axle or between the chassis and
the ground.
10 Examine all pipework for signs of kinks, dents, abrasion, drying out or overheating. Be aware that kinks in
pipework may result in air pressure being trapped in the pipework and associated equipment. Replacement
hardware, tubing, hose, fittings, etc. must be of equivalent size, type and strength as original equipment and
be designed specifically for such applications and systems. Check the attachment of all pipework; it should be
installed so that it cannot abrade or be subjected to excessive heat.
11 Components with stripped threads or damaged/corroded parts must be replaced completely. Do not attempt
repairs requiring machining or welding unless specifically stated and approved by the vehicle or component
manufacturer.
12 Never attempt to install, remove, disassemble or assemble a device until you have read and thoroughly
understood the recommended procedures. Some units contain powerful springs and injury can result if not
properly dismantled and reassembled. Use only the correct tools and observe all precautions pertaining to use
of those tools.
Y026787: 006: EN: Released: Fri Nov 11 11:18:50 CET 2016:
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