VIAIR 91005 0.5 Gallon Tank Instruction Manual

June 4, 2024
VIAIR

0.5 Gallon Air Tanks
PART NO: 91005
Instruction Manual

VIAIR 91005 0.5 Gallon Tank

91005 0.5 Gallon Tank

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
0.5 GALLON AIR TANK
Please read this instruction manual carefully prior to operating this product. Pay particular attention to the CAUTION and WARNING statements in this manual. Failure to comply with these instructions could result in personal injury or property damage. Retain these instructions for future reference.
NOTE: Your air tank comes with two 1/4” NPT ports. To ensure the safe and trouble-free use of your air tank, we strongly recommend that you install a drain cock and a safety pressure relief valve.
IMPORTANT:
a. VIAIR tanks are rated for 150 PSI maximum working pressure. Do not over- pressurize. Overpressuring may result in death or serious injury.
b. Tank is not intended to be used as a breathing device.
c. Always wear ANSI-approved safety glasses when operating air tank.
d. Bleed pressure from tank after each use and before servicing or adding attachments.
e. Use only attachments rated for 150 PSI maximum.
CAUTION: DO NOT PRESSURIZE YOUR TANK UNTIL YOU HAVE INSTALLED ALL NECESSARY PORT FITTINGS AND ACCESSORIES.
a. Apply sealant to threads of fittings prior to assembly and hand tighten each part then use a wrench for airtight connection.
b. Do not over-tighten if your port fittings are made from brass since brass threads can be stripped. The fittings need to be only airtight.
c. Always release air from the tank before servicing or repairs.
d. Wear safety glasses or goggles when operating this product.
WARNING: DRAIN TANK AFTER EACH USE. FAILURE TO DRAIN THE TANK AND REMOVE CONDENSATION WILL CAUSE THE TANK TO RUST PREMATURELY.
a. To remove any accumulated condensation inside the tank, bleed pressure from the tank until pressure is approximately 5 PSI to 20 PSI.
b. Drain water from the tank by opening the drain cock valve.
c. If the drain cock valve is plugged, release all air pressure from the tank. Remove and clean the drain cock valve then reinstall.
d. After the water has been drained, close the drain cock.
IMPORTANT: Please observe the air tank’s Date of Manufacture (stamped on tank leg). Replace the air tank 2 to 5 years from the date the air tank was first used, or use the date of manufacture as a reference. Your adherence to air tank draining guidelines will determine the replacement date of your air tank.
RUSTED TANKS CAN CAUSE EXPLOSIONS OR FATAL INJURIES. Discard the tank immediately if the tank is rusted internally.
NOTE: When using a safety pressure relief valve, point the safety pressure relief valve away from your body. Use the pull ring on the safety relief valve to open the relief valve to vent any pressure inside the tank before attempting to service the tank.

0.5 GALLON AIR TANK PARTS LIST

A. Vibration Isolators (2 pcs)
B. Brass Inserts (2 pcs)
C. Mounting Bolts (M11 x 35mm) (2 pcs)
D. Washers (2 pcs)
E. Locking Washers (2 pcs)
F. Hex Nuts (2 pcs)
See Fig. 1 for Mounting Hardware Assembly

TROUBLESHOOTING GUIDE

PROBLEM: POSSIBLE CAUSE(S) CORRECTIVE ACTION
Tank loses air pressure 1. Air leaks from fittings 1. Locate the leak by

applying soap & water solution. Tighten
fittings as needed
Tank leaks| 1. Pinhole from internal rusting of tank| 1. Replace tank immediately
Can’t get air from the tank to inflate the tire| 1. Low tank pressure| 1. Tank pressure must exceed tire pressure. Increase tank
pressure

LIMITED WARRANTY

VIAIR Corporation warrants this product when properly installed and under normal conditions of use, to be free from defects in workmanship and materials for a period of one year from its original date of purchase. To receive warranty service or repair, please contact VIAIR Corporation.
Returns should be made within one year of the date of purchase after a Return Goods Authorization (RGA) number has been assigned by VIAIR Corporation. To obtain RGA, fax a copy of your receipt to 949-585-0188. For complete warranty details, please visit: www.viaircorp.com/warranty

PLEASE NOTE

THIS WARRANTY COVERS PRODUCT DEFECTS ONLY; IT DOES NOT COVER INCIDENTAL OR CONSEQUENTIAL DAMAGES AS A RESULT OF MISUSE OR ABUSE.
This Manual is proprietary to VIAIR Corporation and no ownership rights are hereby transferred. No part of the Manual shall be used, reproduced, translated, converted, adapted, stored in a retrieval system, communicated or transmitted by any means, for any commercial purpose, including without limitation, sale, resale, license, rental, or lease, without the prior express wrote consent of VIAIR. VIAIR does not make any representations, warranties, or guarantees, express or implied, as to the accuracy or completeness of the Manual. Users must be aware that updates and amendments will be made from time to time to the Manual. It is the user’s responsibility to determine whether there have been any such updates or amendments. Neither VIAIR nor any of its directors, officers, employees, or agents shall be liable in contract, tort, or in any other manner whatsoever to any person for any loss, damage, injury, liability, cost, or expense of any nature, including without limitation incidental, special, direct or consequential damages arising out of or in connection with the use of the Manual.
All third-party product names, logos, and brands are the property of their respective owners. All company, product service, and trademark names are for identification purposes only. Use of these names, logos, and brands does not imply ownership or endorsement.

15 EDELMAN • IRVINE, CA 92618
TEL:949-585-0011 
FAX:949-585-0188
www.viaircorp.co
R2-052621

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