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Package #4 – Electrical:
I. Fuse Holder & 20 ft. 16 Gauge Wire (1pc)
J. 20-amp Fuse (1pc)
K. Push-on Female Terminals (4pcs)
L. 16-gauge Butt Connectors (2pcs)
M. 16-gauge Ring Terminal (1pc)
Package #6 – BSP Adapters for Air Lockers:
(for use with Package #5)
O. BSP Adapters (1/4" M to 1/8" F BSP) (2pcs)
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Package #3 – "Air Out" Air Line (1/4" Air Line):
H. Air Line for Remote Mounting Air Filter (1pc)
H
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 - 1.0 Gallon, 4 port VIAIR Air Tank
1 - 98C model VIAIR compressor with leader hose and check valve
(Check to make sure that you have eight labeled packages in your kit. Each package contains the parts needed
for specic areas of installation, and may contain smaller bags within each package for specic uses.)
PARTS PACKAGES
USER MANUAL
ULTRA-LIGHT DUTY ONBOARD AIR SYSTEM
Package #1 – Pressure Switch & Relay:
A. Pressure Switch - (85 PSI on, 105 PSI o) (1pc)
B. 40-amp relay (1pc)
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A
O
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)
F. 1/4" NPT Male Plug (1pc)
G. T-Fitting – (1/4" M x 1/4" F x 1/8" F NPT) (1pc)
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Package #5:
N. T-Fitting – (1/4" M x 1/4" F x 1/4" F NPT) (1pc)
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N
Package #7 – Compressor Installation:
P. Leader Hose Bracket Clip (1pc)
Q. Mounting Bolts (4pcs)
R. Flat Washers (8pcs)
S. Locking Washers (4pcs)
T. Nuts (4pcs)
U. Vibration Isolators (4pcs)
Package #8 – Air Tank Installation:
V. Mounting Bolts (2pcs)
W. Flat Washers (4pcs)
X. Locking Washers (2pcs)
Y. Nuts (2pcs)
Z. Rubber Tank Mount Bushings (2pcs)
B
RELAY WIRING SCHEMATIC
Pressure Switch
86
Fused
12-Volt
30
To Ground
85
87
Compressor
(+) Lead
I KJ L M
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Q
P
R S T
U
V W X Y Z
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