BPW-EA-AS 37772001dePage 4
English
• All work must be performed by trained mechanics at qualifi ed service centres and authorised specialist
companies who have access to all relevant tools and have acquired the know-how required for this work.
Anyone who performs maintenance and repair work must be trained in automotive mechanics and already have
experience in repairing drawbar trailers and semi-trailers. Anyone who performs brake work must be trained in
brake systems.
• Comply with local safety regulations.
• The relevant operating and service instructions and the safety instructions of the vehicle manufacturer or of the
other vehicle component manufacturers must be followed.
• The vehicle must be prevented from moving during repair work. Please observe the relevant safety regulations
for repair work on commercial vehicles, in particular the safety regulations for jacking up and securing the
vehicle.
• Do not perform repair work unless wearing protective clothing (gloves, safety boots, safety goggles, etc.) and
using the recommended tools.
• Use only recommended tools.
• All air lines and components must be depressurised before opening.
• Following each repair, perform a function check or take a test drive to make sure that the brakes are functioning
correctly. New brake linings only have maximum e ect after a few braking actions. Avoid hard braking.
• All exchanged components must be reused or disposed of in accordance with the applicable environmental
regulations, laws and directives.
• Tighten screws and nuts to the prescribed tightening torque.
• The tyre valve must be positioned far enough away from the brake caliper to prevent it and the tyre from
becoming damaged.
• Damaged or missing components must be replaced immediately
• Before carrying out various activities on the system, the shut-o nozzle must be closed and air vented via the
excess pressure valve on the AirSave Control Box.
• The components of the BPW AirSave must not be painted.
• A minimum outlet pressure of 5.5 bar is required to ensure faultless function of the BPW AirSave.
The working range is between min. 5.5 and 9.8 bar. An incorrectly set pressure can lead to increased tyre wear
and fuel consumption, and in the worst case to a tyre failure. A pressure of 9.2 bar is preset on the AirSave
Control Box.
• There must be a minimum distance of 5 cm between the rubber air outlet and drawbar trailer chassis.
The rubber air outlet must not be compressed.
• A round cable with a cross-section of 6 - 10 mm must be used for the cabling.
The ADR Directives must be observed for cabling.
• All lines must be laid in the protected area and be protected from damage, kinking or chafi ng. All threads must
be free from impurities, greases and oils. Adequate clearance must be ensured as the axle extends and com-
presses.
• First assemble the hub cap and then the rotor. Assembling the two components at the same time can cause
untightness of the O-rings.
• Valve hoses are not allowed to be kinked, cover wheel nuts or protrude over the rim.
A damaged valve hose can cause the tyre to defl ate completely.
• Make sure that the vent openings are not blocked. Prevent vent openings from becoming blocked to allow
system air to escape from the wheel end. Serious personal injury and property damage can result.
• Test the tyre fi lling system for air leaks before using the vehicle for the fi rst time. Spray a corrosion-free leak-
detection solution on all links and connections (this can be soapy water). Listen for audible leaks and check for
bubbles. If you discover a leak, identify the source and replace any parts as needed. Air leaks in tyre fi lling
system can cause damage to components during operation.
• Do not overtighten the valve hoses. This could damage the hose seal and cause the tyre to lose air when the
drawbar trailer is parked. Component damage can result.
• Make sure that you only use the AirSave rotor from BPW (grey cap & white PTFE sealing ring), as this is the only
way to ensure tightness.
1 Safety regulations, safety instructions
1.1 Safety regulations
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