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VXO8715/4124C 

INSTALLATION GUIDE

 
 

 

PAGE 1 of 6

 

BEFORE BEGINNING YOUR INSTALLATION 

Read through the instruction guide before getting started with the installation. Professional installation is recommended for 
this product. 
 

 

 

CONTENTS

 

  Quad Trumpet Train Air Horn (Chrome Plated Trumpets with Black Base) 

  150 PSI Air Compressor 

  1.5 Gallon Air Tank 

  12V Electric Air Valve (Solenoid) 

  240 PSI Pressure Gauge 

  120-150 PSI Pressure Switch 

  175 PSI Safety Valve 

  1/4" NPT Wing Style Drain Valve 

  1/4" NPT Compression Fitting for 1/4" OD Air Line 

  1/4" NPT Hex Head Male Plug 

  1/4" OD Nylon Plastic Hose (6 Feet) 

  12mm Thread Sealant Tape (16 Feet) 

  30A In-line Fuse with Waterproof Holder 

  Horn Button 

  Mounting Hardware 

 

 

 

SAFETY INSTRUCTIONS 

  Do not attempt to disassemble, repair or customize this product. 

  Avoid setting up any parts of this product where there is a risk of falling off or risk of coming in contact with water. 

  Avoid reaching out to touch or pick up any fallen or water submerged parts. 

  Never leave this product unattended during use. 

  Intended for use by adults only. 

  During and immediately after use, avoid touching any part of the compressor with bare hands as it is very hot 

during such periods. 

  Avoid sounding the air horn when in close range to your ear(s) or the ear(s) of others. 

  Avoid use of product near flames, explosive materials, aerosol products or oxygen devices. 

  Be sure to pump nothing other than atmospheric air. 

The specific voltage requirement for this horn system is 12 volt DC, therefore installation must be done to a DC 
power source of 12 volts. 

Summary of Contents for VXO8715/4124C

Page 1: ... Mounting Hardware SAFETY INSTRUCTIONS Do not attempt to disassemble repair or customize this product Avoid setting up any parts of this product where there is a risk of falling off or risk of coming in contact with water Avoid reaching out to touch or pick up any fallen or water submerged parts Never leave this product unattended during use Intended for use by adults only During and immediately a...

Page 2: ...oper length of airline and wire Power wire to compressor should be kept short To power up the air compressor make sure you use a 12 gauge wire or thicker HORN MOUNTING Identify a suitable area for mounting preferably an unobstructed sheet metal surface like the frame or body of the vehicle so as to provide a firm platform which will help protect the horn from damage due to shaking Never attach the...

Page 3: ... the engine running while the compressor is being used BRAIDED HOSE INSTALLATION Connect the stainless steel braided hose of the compressor to the tank s inlet port IMPORTANT The tank s inlet port must be 1 4 N P T National Pipe Thread CHECK VALVE The check valve is an important part of the air compressor and has only one function to let air flow from one side to the other in this case from the co...

Page 4: ...e as to prevent condensation from entering into the gauge Dropping or disturbing the product can affect the product s accuracy For best results the air gauge should be installed perpendicular to the ground with the zero facing the bottom To tighten the pressure gauge into the air tank place a wrench over the square wrench flats to tum the gauge This is the proper way to avoid air leakage or damage...

Page 5: ...essor is pumping use soapy water or any bubble solution to perform this check In case the leak remains after tightening re apply thread sealant CAUTION Never touch fittings braided hose or the air compressor with bare hands either during or shortly after use HORN SOLENOID USING NEW HORN BUTTON Connect one of the electric valve s wires to the positive terminal of the battery alternator etc This cir...

Page 6: ...ank is pressurized Solution 3 Check the fuse if blown disconnect compressor from power and replace the fuse Solution 4 Examine electrical connection for damage or corrosion secure electrical connections Issue Excessive moisture in horn or safety valve Solution 1 Depressurize and drain the tank Solution 2 Relocate the compressor to a drier location Issue Continual cutting off of Thermal overload pr...

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