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HornBlasters 

K3 Train Horn Kit 
Installation Guide

 

Support Line: +1 (813) 783-8058 

Fax Line: +1 (813) 783-2407 

support@hornblasters.com 

www.hornblasters.com/support

 

 

Before Getting Started 

Read over the entire instruction guide before you begin your installation. 
 

Kit Contents: 

 

Nathan AirChime K3 Train Horn 

 

ViAir 400C Air Compressor Pump 

 

ViAir Weather-proof Pressure Switch 

 

Firestone 5 Gallon 7 Port Air Tank 

 

Electric Solenoid Valve 

 

Fittings, Air Line, Wiring Kit, Replacement Air Filters 

 
IMPORTANT: 
This complete train horn kit uses 12 volt DC components. Only install this kit 

with a 12 volt DC power source. 

 

Important Safety Instructions 

CAUTION: To prevent the risk of electrical shock or electrocution: 

 

Do not disassemble any electrical components of this horn kit (air compressor, air valve, pressure switch).  
Do not attempt repairs or modifications of any component.  Please refer to qualified service agencies for 

all service and repairs. 

 

Do not operate any component where it can fall or be submerged into water or any kind of liquid. 

 

Do not reach for any component that has fallen or been submerged into water or any kind of liquid. 

 

Use the included components with 12 volt DC systems only. 

 

Do not leave the air system unattended during use. 

 

WARNING: To prevent injury: 

 

Never allow children to operate the compressor or air horn.  Use close supervision when operating this 

equipment near children. 

 

The air compressor will become very HOT during and immediately after operation.  Do not touch any part 

of this compressor with your bare hands during or immediately after use. 

 

Do not use this product near open flames or explosive materials or where aerosol products are being used. 

 

Do not operate this product where oxygen is being administered. 

 

Do not pump anything other than atmospheric air. 

 

Never use this product while sleepy or drowsy. 

 

Do not use any tools or attachments with the supplied air source unit without first determining maximum 
air pressure for that tool or attachment. 

 

Never point any air nozzle or air sprayer toward another person or any part of your body. 

 

The included air compressor is equipped with an automatic reset thermal protector and can automatically 

restart after the thermal protector resets.  Always cut off power source when thermal protector becomes 
activated. 

 

Use only in well ventilated areas. 

 

Do not sound the air horn(s) in close proximity to another person’s or your own ear(s). 

 

Do not fill the included air tank above 150 PSI.  Doing so may result in death or serious injury. 

 

Safety During Installation 

 

Disconnect the ground of your battery before beginning your installation. 

 

Use eye protection when operating drills. 

 

Take your time and do not rush your installation. 

Summary of Contents for AH-K3

Page 1: ...HORNBLASTERS Nathan AirChime K3 Train Horn Kit Installation Manual...

Page 2: ...To prevent injury Never allow children to operate the compressor or air horn Use close supervision when operating this equipment near children The air compressor will become very HOT during and immedi...

Page 3: ...ngs 7 8 Wrench 1 2 NPT Fittings 8mm Wrench or Socket Air Compressor Mounting 16mm Wrench Metric 1 4 NPT Fittings 22mm Wrench Metric 1 2 NPT Fittings Drill Wire Cutter Stripper Tubing Cutter Razor Eye...

Page 4: ...t into the hole Route the leader hose through the hose bracket and secure by pressing the bracket clamp into the locker position Pressure Switch in to Tank Air Tank 1 2 NPT to 1 8 NPT Reducer Bushing...

Page 5: ...ed battery to your switch any side 2 Next wire your switch to any pole red preferred of your air valve 3 Wire the other side black preferred of the air valve to ground 4 Test your circuit by activatin...

Page 6: ...ngs are worn between horn bells and manifold 1 If you have performed maintenance make sure bells are seated flush and new O rings were installed 2 Allow your air system to refill before use 3 Replace...

Page 7: ...Do you have any comments or tips about the installation o Anything else you want to tell us We appreciate your feedback Optionally include a little personal information o Your name if you would like y...

Page 8: ...8 Fax 1 813 783 2407 email support hornblasters com 5 Gallon Nathan AirChime K3 Installation Diagram Ignition Wire Run this wire to an ignition wire this is a wire that is only powered when the key is...

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