VIAIR Quarter Duty OBA - Manual (Page 2)

Package #4 – Electrical:
G. Fuse Holder & 20 ft. 12 Gauge Wire (1pc)
H. 20-amp Fuse (1pc)
I. Push-on Female Terminals (4pcs)
J. 16-gauge Butt Connectors (2pcs)
K. 16-gauge Ring Terminal (2pcs)
F
Package #3 – “Air Out” Air Line:
F. Air Out Line
Package #5 – Compressor Installation:
L. Leader Hose Bracket Clip (1pc)
M. Mounting Bolts (4pcs)
N. Flat Washers (8pcs)
O. Locking Washers (4pcs)
P. Nuts (4pcs)
Q. Air Filter Assembly (1pc)
R. Remote Mount Air Filter Fittings for
Compressor and Air Filter connection (1pc)
S. 2-Pack of Replacement Air Filters (1pc)
T. Air line for Remote Mounting Air Filter (1pc)
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, 5-port VIAIR Air Tank
1 - 275C model VIAIR compressor with leader hose and check valve
(Check to make sure that you have six labeled packages in your kit. Each package contains the parts needed
for specific areas of installation, and may contain smaller bags within each package for specific uses.)
PARTS PACKAGES
USER MANUAL
QUARTER DUTY ONBOARD AIR SYSTEM
Package #1 – Pressure Switch & Relay:
A. Pressure Switch - (90 PSI on, 120 PSI off) (1pc)
B. 40-amp relay (1pc)
A
Package #2 – Fittings:
C. 1/4” NPT Drain Cock (1pc)
D. 1/4” NPT 145 PSI Safety Valve (1pc)
E. 1/4” NPT Compression Fitting (1pc)
C D E
Package #6 – Air Tank Mounting:
U. Mounting Bolts (4pcs)
V. Flat Washers (8pcs)
W. Locking Washers (4pcs)
X. Nuts (4pcs)
Y. Rubber Tank Mount Bushings (6pcs)
B
RELAY WIRING SCHEMATIC
Pressure Switch
86
Fused
12-Volt 30
To Ground
85
87 Compressor
(+) Lead
G I H J K
M L
S R
N O P Q
U V W X Y
T