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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   is   necessary   when   this 

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. 

Summary of Contents for 400H

Page 1: ...ompressor Close supervision is necessary when this 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 p...

Page 2: ...D WIRING 1 Disconnect ground cable from vehicle s battery 2 Temporarily position the air compressor in the location where it will be mounted Route the positive wire to the positive post of the battery Measure and cut positive wire to the appropriate length and use appropriate inline fuse 3 Route ground wire to the negative post of the battery or to an appropriate chassis grounding point and cut gr...

Page 3: ...perations exceeding maximum pressure ratings and or duty cycle will result in damage to air compressor 3 Your air compressor is equipped with an A U T O M A T I C T H E R M A L O V E R L O A D PROTECTOR This feature is designed to protect the air compressor from overheating and causing permanent damage to your air compressor The thermal overload protector will automatically cut power to your air c...

Page 4: ...ed on the Inflator Deflator Coil Hose P N 00025 for tire inflation 4 Always inflate tires to manufacturer s recommended tire pressures Exercise extreme caution when driving with aired down tires Re inflate tires before high speed road way travel MAINTENANCE REPAIRS 1 Periodically check all electrical and fitting connections Clean and tighten or repair as needed 2 Periodically check all mounting bo...

Page 5: ...to Reset Thermal Protection Yes Housing Moisture Dust Resistant Dimensions 11 25 x4 0 x7 0 Net Weight 8 lbs Part No 45042 450H Air Compressor Motor Voltage 12 volts Max Current Consumption 23 amps Motor Type Permanent Magnetic Horse Power 4 Jan Max Working Pressure 150 PSI Max Duty Cycle 100 Min On Off 72ºF 100 PSI Continuous Max Restart Pressure 200 PSI Max Ambient Temperature 158 F Min Ambient T...

Page 6: ...or rattling shaft 2 Cylinder or piston ring is worn 2 Repair or replace compressor Compressor air flow 1 Worn piston ring or inlet valve 1 Repair or replace compressor lower than normal or can not pump to higher pressures 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 per...

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