CONSTANT DUTY
ONBOARD AIR SYSTEM
PART NO. 10007
IMPORTANT:
It is essential that you and any other operator of this
product read and understand the contents of this manual
before installing and using this product.
SAVE THIS MANUAL FOR FUTURE REFERENCE
USER MANUAL
*Only Compressor
is CE Certied
CONSTANT DUTY ONBOARD AIR SYSTEM
Thank you for purchasing this complete, self-contained onboard air system. Contained in one package,
you’ll nd everything you’ll need to install a high performance, onboard air source for your vehicle.
Please follow these instructions to install your new system.
OBA Components:
1 - 2.5 Gallon, 6 port VIAIR Air Tank
1 - 450C model VIAIR compressor
1 - 36-ft. Length of 1/4” Air Line (for accessory and gauge installation)
1 - 35-foot Coil Hose with clip-on chuck
(Please check to make sure that you have four labeled packages in your Onboard Air System kit. Each package
contains the parts needed for specic areas of onboard air installation, and may contain smaller bags within
each package labeled for specic use.)
PARTS PACKAGES
Package #1 – Air Tank Installation:
A
BLCMD
F
G H I J
E Z AA
A. Mounting Bolts (4pcs)
B. Flat Washers (8pcs)
C. Locking Washers (4pcs)
D. Nuts (4pcs)
E. Rubber Tank Mount Bushings (6pcs)
F. 1/4” NPT Drain Cock (1pc)
G. 1/4” NPT 175 PSI Safety Valve (1pc)
H. 1/4” NPT Compression Fitting (3pcs)
I. 1/4” NPT F Quick Connect Coupler (1pc)
J. 1/4” NPT F Quick Connect Stud (1pc)
Package #2 – Compressor Installation:
K
N O P Q
R S T
U W
V
X
Y
K. Mounting Bolts (4pcs)
L. Flat Washers (8pcs)
M. Locking Washers (4pcs)
N. Nuts (4pcs)
O. Remote Mount Air Filter Assembly (1pc)
P. Remote Mount Air Filter Fittings for
Compressor and Air Filters (2pcs)
Q. 2-pack of Replacement Air Filters (1pc)
R. Leader Hose Bracket Clip (1pc)
S. Air line for Remote Mounting Air Filter (1pc)
T. 4-inch Strip of continuous Grommet Material (1pc)
U. Fuse Holder & 20 ft. 12 Gauge Wire (1pc)
V. 20-amp Fuse (1pc)
W. 12-gauge Ring Terminal (1pc)
X. 12-gauge Butt Connector (1pc)
Y. Self-tapping Screw (1pc)
USER MANUAL
Package #3 – Pressure Switch & Reducer:
Y. Pressure Switch with Relay (110 PSI on, 150 PSI off) (1pc)
AA. Reducer (1/8” NPT F to 1/4” NPT M) (1pc)
Package #4 – Gauge Panel Installation:
BB CC DD EE FF GG
0
2
5
2
5
1
1
0
1
0
3
2
3
5
5
0
0
HH
II
JJ
BB. Dash Panel Gauge with ON/OFF Switch (1pc)
CC. Mounting Bolts (2pcs)
DD. Flat Washers (4pcs)
EE. Locking Washers (2pcs)
FF. Nuts (2pcs)
GG. Push-on Female Terminals (2pcs)
HH. 12-gauge Ring Terminal (1pc)
II. 12-gauge Butt Connectors (2pcs)
JJ. Self-tapping Screw (1pc)
CONSTANT DUTY ONBOARD AIR SYSTEM
P/N 10005, 10007
OBA PLUMBING DIAGRAM
Typical System Configuration, May Vary Depending on Installation
2.5 GALLON AIR TANK & PLUMBING (USE CONTENTS OF PARTS PACKAGE #1)
Your 2.5 Gallon air tank comes with six 1/4” NPT port openings to allow installation in many congurations on
your vehicle. To insure safe and trouble-free use of your air tank, we strongly recommend that you install the
supplied drain cock and a safety pressure relief valve. (See Figure 1)
Dash Panel
Gauge
Compression
Fitting
Compression
Fitting
Safety
Valve
Quick Connect
Couplers
Plumbing Diagram:
(Figure 1)
2.5
Gallon
Tank
Coil Hose
Drain
Cock
Pressure Switch
with Relay
Reducer
Leader Hose
From Compressor
Tank Fittings:
Install the supplied compression ttings and/or quick connect tting for the air tank in areas where they are
most appropriate for your installation using thread sealant. Make sure that the safety valve is installed in the
top most position on the tank, and that the drain cock is installed in the lowest position on the tank if the tank
is to be installed in any other position than upright on the tank’s mounting legs. Be sure that all ttings are
accessible later in the installation process since you will have to plumb air lines to each tting as needed to
utilize the air tank.
Mounting the Tank:
We have included 6 pieces of rubber bushings in your tank mounting hardware. You have the option of using
two layers of rubber bushings on one of your tank lags to slightly tilt tank toward the drain cock to improve
drainage. Use the provided longer bolts, and corresponding washers, and nuts to mount the tank to a suitable
chassis or body point on your vehicle.
IMPORTANT:
- Tank is rated for 150 PSI maximum working pressure.
- Tank is NOT to be used as a breathing device.
- Bleed pressure from tank before servicing or adding attachments.
- Use only attachments or tools rated for 150 PSI working pressure or less.
CAUTION! DO NOT PRESSURIZE YOUR TANK UNTIL YOU HAVE INSTALLED
ALL NECESSARY PORT FITTINGS AND ACCESSORIES.
- Apply sealant to threads of ttings prior to assembly and tighten each part with a wrench.
- Do not over tighten if your port ttings are made from brass, since brass threads can be stripped.
- Always release air from tank before servicing.
WARNING: FAILURE TO DRAIN TANK AND REMOVE CONDENSATION
WILL CAUSE TANK TO RUST PREMATURELY.
- To remove accumulated condensation inside the tank, bleed pressure from tank until pressure is
approximately 5-20 PSI using drain cock
- Drain tank by opening the drain cock drain valve and close after draining tank.
- If drain cock valve is plugged, release all air pressure from tank, remove drain valve and clean, then reinstall.
IMPORTANT: Please observe air tank’s Date of Manufacture (stamped on tank leg).
Replace air tank 2 to 5 years from date air tank was rst used, or use the date of manufacture as reference.
Adhering to air tank draining guidelines will prolong the life of your air tank.
PLEASE NOTE: RUSTED TANKS CAN FAIL CAUSING EXPLOSIONS OR FATAL INJURIES.
Discard tank immediately if tank is rusted.
SAFETY VALVE: When using a safety pressure relief valve, point the safety pressure relief valve away
from your body when releasing air. Use the pull ring on the safety relief valve to vent pressure from the
tank before servicing.
USER MANUAL
CONSTANT DUTY ONBOARD AIR SYSTEM
450C AIR COMPRESSOR INSTALLATION (USE CONTENTS OF PARTS PACKAGE #2)
Your Constant Duty Onboard Air System comes complete with a 450C, 100% duty cycle compressor.
Please follow the installation instructions that follow to enjoy the best use of your onboard air system.
CAUTION - To reduce risk of electrical shock or electrocution:
- Do not disassemble the compressor. Do not attempt repairs or modications.
Refer to qualied service agencies for all service and repairs.
- Do not use this product in or area where it can fall or be pulled into water or liquids.
- Do not reach for this product if it has fallen into liquid.
- Use this compressor with 12-volt DC systems only.
- This product should never be left unattended during use.
Guidelines for Selecting Mounting Location:
The selection of proper mounting location for your air compressor will help ensure a long
and trouble free compressor service life. Please pay close attention to the following:
- Select a FLAT, UPRIGHT & SECURE LOCATION where the compressor can be mounted.
- To maximize air compressor performance, locate compressor as CLOSE TO THE BATTERY
as possible so that length of positive lead wire required is at a minimum.
- Choose mounting location that is as cool as possible and away from heat sources.
- This compressor is moisture & dust resistant, but NOT WATERPROOF or DUSTPROOF. Do not mount
compressor in locations where the unit is likely to come in contact with water or excessive dirt.
- For compressor with remote lter mounting, select compressor’s mounting location where air line can be
routed from compressor air inlet to remote inlet air lter. Make sure that the remote inlet air lter is located
in a dry location, away from water.
- You will also want to select a compressor mounting location where the leader hose bracket can be mounted
to secure the 2 ft. leader hose.
- If it is necessary to mount the air compressor further from the battery, such as inside your vehicle or in the
bed of your pickup, use a minimum 8 AWG positive lead wire for remote installation.
- Do not mount compressor near areas where ammable liquids are stored.
- Use thread sealant for proper tting installation. Teon tape is not recommended.
Properly sealed, recommended torque is 12 to 15 ft. lbs
450C Compressor Wiring: (See Figure 2)
1. Disconnect ground cable from vehicle’s battery.
2. Temporarily position the air compressor in the location where it will be mounted.
3. Route ground wire to the negative post of the battery or to an appropriate grounding point and cut ground
wire to length as needed.
4. Mount the 400C air compressor with the four sets of 13/64” (5 mm) bolts, nuts, washers, and locking
washers provided. Use of thread locker is recommended.
5. NOTE: For Remote Inlet Air Filter Installation, refer to Remote Inlet Air Filter Installation Instruction included
in the Remote Inlet Air Filter Pack for installation of Remote Inlet Air Filter.
6. This air compressor comes with a 2 ft. heavy duty heat resistant stainless steel braided leader hose with
1/4” ttings. This leader hose is designed to prolong the life of your air line. Do not remove this leader hose
from air compressor.
7. IMPORTANT: Please note; the leader hose that came with your compressor has a built-in inline check valve
pre installed. Do not remove inline check valve from leader hose.
8. Select a proper location to mount leader hose with hose bracket provided. Avoid locations where leader
hose may become tangled with wires and other hoses.
9. To mount hose bracket, drill holes with 3/16” drill bit and push self–anchoring hose bracket pin into hole.
Route leader hose through hose bracket and secure hose by pressing bracket clamp into locked position.
10. To remove hose from the hose bracket, simply press down on the hose clamp release tab to release
bracket clamp.
11. Connect compressor’s positive lead wire to the appropriate lead of your pressure switch with relay
12. Make sure that your compressor setup is properly fused. The 450C pulls approximately 20 amps of power.
13. Always locate fuse as close as possible to power source.
14. Before connecting to power source, check to make sure that all connections are made properly.
15. Connect and test compressor system by running the compressor for a short time to build up pressure
in your air tank.
16. Once air pressure reaches preset cut out pressure of your pressure switch, the compressor will shut off.
Inspect all air line connections for leaks with soap and water solution. If a leak is detected, the air line may
not be cut squarely or pushed all the way in. Tighten connections if needed.
USER MANUAL