Auto Pump HP, Model #: 091-9HP

auto pump hp
  • 125 PSI Max Rating, 120V, 3.5A
  • Vehicle mount compressor ensures air brake system is properly pressurized for immediate
    truck departure from station
  • Pressure switch regulated operation automatically senses low pressure in air system and restores proper pressure, preventing brake lock-up
  • Pressure gauge provides system status
  • No interference with engine mounted air compressor
  • Factory set PSI actuation points: 105 "On", 125 "Off" with Adjustment differential 20 PSI
  • Sealed ball bearings for long service life
  • 1 year warranty

  • Auto Pump HP
  • Downloadable
  • Outline
  • Related
Input: 120 Vac, 50/60 Hz, 3.5 Amps
Output: 1.27 CFM, Open Flow, 125 PSI Max               
Motor Type: Shaded Pole AC
Motor Horsepower: 1/8 HP
Pressure Switch: Adjustable Set-Point
                                 Factory set to 105 PSI Cut-In, 125 PSI Cut-Out
Outlet Connection: 1/4 NPT, Female
Weight: 13 lbs
Warranty: 1 Year

Instruction Manual, 120 Vac.pdf (223 Kb)
Instruction Manual, 240 Vac. pdf (221 Kb)
Product Specifications, 120 Vac.doc (179 Kb)
Product Specifications, 240 Vac.doc (179 Kb)
3D Drawing - IGS File (1.9 Mb)

outline drawing 091-9hp
Auto Pump 12 Volt - 091-9-12V
Auto Pump 12 Volt with Auto Drain - 091-9-12V-AD
Auto Pump Timer - 091-150
Auto Pump 12 Volt HP, Horizontal Mount - 091-9-12V-HP-HOR
Auto Pump 12 Volt HP, Vertical Mount - 091-9-12V-HP-VER
Mounting Plate for Auto Pump 12 Volt and 12 Volt HP - 091-9-12V-HP-H
Auto Pump AC - 091-9B-1
Auto Pump AC with Auto Drain - 091-9B-1-AD
Mounting Plate for Auto Pump AC - 091-9H-1
AC Auto Pump Timer - 091-150-115
Auto Pump HP with Auto Drain - 091-9HP-AD
Mounting Plate for Auto Pump HP - 091-9HP-H
Auto Pump Tester - 091-205

The Auto Pump HP system is a permanent split capacitor A.C. motor operating a single cylinder air compressor designed specifically for installation on vehicles with air brakes. During long idle periods of the vehicle, when even the slightest seepage can cause an air brake system pressure to drop below the brake lockup pressure, the Auto Pump HP automatically starts to maintain the pressure.
The Auto Pump HP motor is directly coupled to the compressor section eliminating all belts and pulleys assuring long life and reliable operation. A heavy duty, fixed set-point pressure switch starts the compressor when the pressure switch drops below 105 PSI and stops the compressor when 125 PSI is attained. A small pressure gauge indicates the Auto Pump output pressure and helps with installation and troubleshooting. The moisture trap provided permits routine draining of accumulated moisture in the Auto Pump output line.