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VXO8410/4124B 

INSTALLATION GUIDE

 
 

 

PAGE 3 of 5

 

 

 

 

ON-BOARD AIR SYSTEM 

MOUNTING 

  Determine a dry place to mount your on-board air system. If you have chosen to install in the engine 

compartment, you should mount it as close to the front as possible to allow for maximum flow of air around 
compressor and also to avoid heat from the exhaust.  

IMPORTANT

: Never attach the system to any plastic or 

other flexible material. 

  For optimal results, the compressor should be placed as close to the battery as possible. This will reduce the 

amount of wiring needed. 

  Avoid placing compressor near flammable liquids. 

  For proper heat dissipation of the compressor never install the on-board air system upside down. 

  Mark the spots for the holes with the mounting base as a guide and then drill. Make sure the system is 

secured. 

 

THERMAL OVERLOAD PROTECTION 

  The compressor has Thermal Overload Protection, if this protection activates, cut off the source of power and 

let the unit cool down for about 30 minutes. This will reset the system and allow you to safely resume use of 
the air compressor. 

 

PRESSURE SWITCH RATING 

  The included pressure switch has a rating of 110 PSI ON, 140 PSI OFF. When the air pressure in the air tank 

is below the preset ON pressure (110 PSI), the compressor will automatically turn on and will start pumping 
air into the tank. When the pressure reaches the cut OFF pressure (140 PSI), the compressor will be 
automatically shut off. 

  In this system your Pressure Switch is already wired to the air compressor. Do not modify this connection. 

 

AIR PRESSURE GAUGE 

  Your system includes a 140 PSI Pressure Gauge that will measure the air pressure of the tank. 

  The air pressure gauge is a sensitive part of the system, please avoid dropping, hitting or tighten it to the tank 

using a method other than the brass nut located in the back. 

 
DRAIN VALVE 

  This valve helps you drain the water that can collect in the air tank after long periods of use. 

REMOVING CONDENSATION

 

To remove any condensation which has accumulated inside the tank, bleed the tank’s pressure until it ranges 
from approximately 5 PSI to 20 PSI. 

  Remove the drain valve found at the ta

nk’s bottom to drain the water from the tank. After draining the 

accumulated condensation, reinstall the drain valve. 

 

IMPORTANT

: Draining the system regularly will extend the life of the air tank. 

MAINTENANCE 

  Make sure that electrical and fitting connections are regularly inspected, cleaned and tightened when needed. 

  Make sure mounting screws are regularly tightened if needed. 

  Drain weekly, to avoid excessive buildup of condensation. 

  Compressor features a washable air filter nut which should be cleaned using any mild form of liquid soap 

every two months if it gets dusty. 

  Clean dirt and dust from heat spreader and motor housing of the compressor. 

 

The motor of the air compressor has a maintenance-free lasting lubricant. 

DO NOT LUBRICATE

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Summary of Contents for VXO8410/4124B

Page 1: ...t 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 cl...

Page 2: ...r up the on board air system 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 horn to any plastic or other flexible material Mark the spots for the holes wit...

Page 3: ...ressure reaches the cut OFF pressure 140 PSI the compressor will be automatically shut off In this system your Pressure Switch is already wired to the air compressor Do not modify this connection AIR PRESSURE GAUGE Your system includes a 140 PSI Pressure Gauge that will measure the air pressure of the tank The air pressure gauge is a sensitive part of the system please avoid dropping hitting or ti...

Page 4: ...y bubble solution to perform this check In case the leak remains after tightening re apply thread sealant IMPORTANT Never touch fittings connecting tubes 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 circuit should be protected using a...

Page 5: ...isture in horn Solution 1 Depressurize and drain the tank Solution 2 Relocate the on board air system to a drier location Issue Continual cutting off of Thermal overload protection Solution 1 Relocate the on board air system to a drier cooler location Solution 2 Replace the compressor Issue Excessive vibration or noise Solution 1 Tighten system components Solution 2 Replace the compressor Issue Lo...

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