VIAIR Dual 400C OBA - Manual (Page 8)

USER MANUAL
DUAL 400C ONBOARD AIR SYSTEM
TIRE INFLATION GUN OPERATING INSTRUCTIONS
Your Onboard Air System also comes with a Tire Inflation Gun for airing up tires and adding compressed air to
any inflatable items with a valve stem.
1. Using the Tire Inflation Gun:
Use a 1/4“ Quick Connect Coupler, connect the Tire Inflation Gun to an air hose and connect to a tire valve
stem or similar inflation collar by securing the folding lever on the Inflation Gun air chuck.
2. Filling Tires and other Inflatable Items:
Squeeze the Inflation Trigger on the Inflation Gun by pressing it towards the handle of the gun. This will allow
stored air from the air tank to flow through the gun and through the chuck into your tire or other inflatable
items.
3. Checking Tire Pressure:
To check tire pressure, release Inflation Trigger on Inflation Gun and allow the needle of the 0-200 PSI gauge
to settle. Tire pressure will be able to be read only when the inflation trigger is released.
WARNING:
- Never operate the Inflation Gun at any pressure exceeding 150 PSI.
- Use caution when attaching or removing air chuck from valve stems.
- Always ensure that tire valve stems are tight before inflating tires.
- Be careful to never inflate any tire or other inflatable items past its rated pressure to avoid explosion,
possible injury, or death.
Please Note: Not intended for use with regular portable compressors or units meant to be operated with an
open ended air chuck. The Tire Inflation Gun is equipped with a close ended chuck and will hold pressure
back, which could cause the hose to burst.
VIAIR TIRE INFLATION GUN
Bleeder Valve
Quick Connect Stud
Inflation Trigger
0-200 PSI Gauge
Lever Air Chuck