Parts packages, User manual dual 400c onboard air system – VIAIR Dual 400C OBA User Manual
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Pressure Switch & Relays:
X. Sealed Pressure Switch
(110 PSI on, 145 PSI off) (1pc)
Y. 40-amp Relays (2pcs)
Compressor Installation:
L. Mounting Bolts (8pcs)
M. Flat Washers (16pcs)
N. Locking Washers (8pcs)
O. Nuts (8pcs)
P. Remote Mount Air Filter Assemblies (2pcs)
Q1. 1/4” NPT F x 3/8” Barbed Fitting (2pcs)
Q2. 1/4” NPT M x 3/8” Barbed Fitting (2pcs)
R. 2-pack of Replacement Air Filters (2pcs)
S. Leader Hose Bracket Clips (2pcs)
T1. 3/8” O.D. Air lines (2pcs)
T2. 1/4” O.D. Air lines (2pcs)
U. 60-amp Tube Style Fuse (1pc)
V. Screws (6pcs)
W. Air Line Clips (6pcs)
Thank you for purchasing this complete, self-contained onboard air system. Contained in one package,
you’ll find 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 - 2.0 Gallon, 6 port VIAIR Air Tank (Max. 150 PSI)
2 - 400C Chrome VIAIR compressors
2 - 15-ft. Length of 1/4” Air Line (for accessory and gauge installation)
PARTS PACKAGES
USER MANUAL
DUAL 400C ONBOARD AIR SYSTEM
Air Tank Installation:
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 Fittings (3pcs)
I. 1/4” NPT M Quick Connect Coupler (1pc)
J. 6-Port Manifold & Bracket (1pc)
K. 1/4” NPT M Plugs (5pcs)
REDUCER
REDUCER
REDUCER
F
G
H
I
J
K
U
REDUCER
A
L
S
T1, T2
B
M
C
N
D
O
P
Q1
Q2
R
E
X
Y
RELAY WIRING SCHEMATIC
Pressure Switch
86
Fused
12-Volt
30
To Ground
85
87
Compressor
(+) Lead
Coil Hose with Couplers:
Z. 30-ft. Coil Hose with close ended
Quick Connect Coupler
Z
W
V