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MODEL NUMBER:
400H – HARDMOUNT AIR COMPRESSOR
450H – HARDMOUNT AIR COMPRESSOR
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
400H
450H
USER MANUAL

IMPORTANT SAFETY INSTRUCTIONS

CAUTION - To reduce risk of electrical
shock or electrocution:
Do not disassemble. Do not attempt repairs or
modifications. Refer to qualified service agencies
for all service and repairs.
Do not use this product in or area where it can fall
or be pulled into water or other liquids.
Do not reach for this product if it has fallen into liquid.
Use this compressor with 12-volt DC systems only.
This product should never be left unattended
during use.
WARNING - To prevent injury:
Never allow children to operate this compressor.
Close
supervision
compressor is being used near children.
This compressor will become very HOT during
and immediately after use. Do not touch any part
of this compressor with bare hands other than the
ON/OFF switch, during and immediately after use.
Do not use this product near flames or explosive
materials or where aerosol products are being used.
Do not operate this product where oxygen is
being administered.
Do not pump anything other than atmospheric air.
Never use this product while sleepy or drowsy.
Do not use any tools or attachments without first
determining maximum air pressure for that tool or
attachment.
Never point any air nozzle or air sprayer toward
another person or any part of the body.
This air compressor is equipped with Automatic Reset
Thermal Protector, and can automatically restart after the
thermal protector resets. Always cut off power source
when thermal protector becomes activated.
Wear safety glasses or goggles when operating
this product.
Use only in well ventilated areas.
is
necessary
when
this

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Summary of Contents for VIAIR 400H

  • Page 1 MODEL NUMBER: Do not reach for this product if it has fallen into liquid. Use this compressor with 12-volt DC systems only. • 400H – HARDMOUNT AIR COMPRESSOR This product should never be left unattended • 450H – HARDMOUNT AIR COMPRESSOR during use.
  • Page 2 INSTALLATION MOUNTING AND WIRING Disconnect ground cable from vehicle’s battery. This air compressor is ideal for mounting under the hood or even inside Temporarily position the air compressor in the location where your vehicle. The compact size of this compressor requires minimal it will be mounted.
  • Page 3 (Fig. 1) OPERATING INSTRUCTIONS 400H/450H Hardmount Air Compressor Installation Parts List: IMPORTANT: 1. Always operate the compressor at or below the MAXIMUM PRESSURE RATING of the compressor. Refer to Compressor Application and Specifications sections of this manual for details. Always observe the MAXIMUM DUTY CYCLE of the air compressor.
  • Page 4 TIRE INFLATION This air compressor comes with 1.5 feet heavy duty heat-resistant leader hose with 1/4” industrial series quick connect stud. By attaching an air hose with 1/4” industrial series quick coupler to the leader hose, your air compressor is ready to inflate tires. Read and follow tire inflation instructions carefully to avoid personal injury and damage to air compressor or vehicle.
  • Page 5 SPECIFICATIONS Part No. 40042 / 400H Air Compressor Motor Voltage: 12 volts Max. Current Consumption: 30 amps Motor Type: Permanent Magnetic Horse Power: 4-Jan Max. Working Pressure: 150 PSI Max. Duty Cycle: (Min. On/Off @72ºF & 100 PSI) 15 On / 30 Off Max.
  • Page 6 Returns should be made within the time period and conditions of the retailer’s policy for exchanges. If you are unable to contact your dealer, contact VIAIR directly for repairs or replacement at our option. PLEASE NOTE: THIS WARRANTY COVERS PRODUCT DEFECTS ONLY;...

This manual is also suitable for:

450h

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