Frequently Asked Questions
What oil does the Air N Arc® ALL-IN-ONE Power System® use?
Air N Arc® ALL-IN-ONE Power Systems® require Vanair® Vanguard™ Premium Rotary Screw Compressor Oil — the only oil approved for use in these systems. The Air N Arc® 330 Diesel specifically requires Vanguard™ High Pressure Rotary Screw Compressor Oil (part number 275691-1GAL), which is formulated for the higher operating pressures of the Kubota® D902-powered system. Substituting any non-Vanguard™ oil — regardless of viscosity rating — voids the compressor warranty and risks premature wear on the rotor assembly, separator element failure, and thermal shutdowns in the field.
How often should I service my Air N Arc® compressor?
Air N Arc® ALL-IN-ONE Power Systems® require an initial break-in service at 50 hours of operation, followed by full compressor maintenance every 500 hours or annually — whichever comes first. The break-in service uses the initial 50-hour kit and replaces compressor oil, the oil filter, and the air filter element. The 500-hour annual service adds a spin-on air/oil separator to those same items. For the Air N Arc® 330 Diesel, Kubota® D902 engine maintenance is required separately every 200 hours or annually. Operating in dusty, high-cycle, or extreme-temperature environments may require earlier inspections — when in doubt, service sooner rather than later.
Are Air N Arc® maintenance kits model-specific?
Yes — every Air N Arc® maintenance kit is engineered specifically for one model and cannot be substituted across the product line. The Air N Arc® 150 and 250-L use reciprocating compressor kits (KIT1156, KIT1387) sized for their compressor configuration, while the Air N Arc® 300, 300 Compact, 300 Hydraulic, and I-300 use rotary screw kits (KIT1285, KIT1153). The Air N Arc® 330 Diesel uses its own dedicated compressor kits (KIT1505, KIT1501) plus separate Kubota® D902 engine kits (KIT1518, KIT1519). Using a kit from a different model risks incorrect oil volume, mismatched filter sizing, and components that do not physically fit — always order by model and confirm your machine number before purchasing.
Where can I find the serial number on my Air N Arc® unit?
The machine package serial number plate on an Air N Arc® ALL-IN-ONE Power System® is located inside the machine compartment on the floor near the generator mounting location. The compressor carries a separate serial number on the compressor unit itself. Both numbers are required when ordering parts, requesting warranty service, or submitting a return material authorization (RMA) through the Vanair® Service Department. Have both serial numbers available before calling — the machine number confirms your exact configuration, and the compressor serial number confirms the air end. Contact Vanair® Service at 1-844-826-7378 for parts support.
Will using aftermarket parts void my Air N Arc® warranty?
Yes — using non-genuine Vanair® filter components or non-Vanguard™ compressor oil voids the Air N Arc® compressor warranty. Vanair® operating manuals state this explicitly, and it applies to all Air N Arc® ALL-IN-ONE Power System® models. The rotary screw air end warranty — which covers the lifetime of the air end when the prescribed maintenance schedule is followed — and the 3-year major component warranty are both contingent on using OEM-genuine parts and approved fluids. Aftermarket substitutions are not a neutral cost-saving measure: rotary screw compressors are sensitive to oil viscosity and additive chemistry in ways that piston compressors are not, and an incorrect oil can cause rotor wear, separator failure, and thermal shutdowns that are not covered under warranty.
How do I contact Vanair® for parts support or warranty questions?
Vanair® parts support and warranty questions are handled by the Vanair® Service Department, reachable at 1-844-826-7378. For online parts ordering, genuine OEM maintenance kits, and replacement parts for all Air N Arc® models, find a Vanair® Authorized Parts Distributor near you or shop their online store. When contacting service, have your machine package serial number and compressor serial number ready — both are required to confirm your exact configuration and process warranty or RMA requests.
What is included in the 500-hour compressor maintenance kit?
The Air N Arc® 500-hour annual compressor maintenance kit includes four components: compressor oil (Vanguard™ Premium Rotary Screw formula), a compressor oil filter, a compressor air filter element, and a spin-on air/oil separator. The spin-on separator is what distinguishes the 500-hour kit from the initial 50-hour break-in kit — the break-in kit does not include the separator. Exact kit contents and part numbers vary by model: the Air N Arc® 300 series uses KIT1153, the Air N Arc® 330 Diesel uses KIT1501, and the Air N Arc® 150 and 250-L use KIT1156. See your model’s parts page for the specific kit part number and full contents list.
