TRUCKS/TRAILERS
 


Auto Pump® 120 Volt System
Air Brake Leakage Compensator
The 091-9B-1 Auto-Pump Air Compressor system is a 120 volt 60 Hz shaded pole 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 automatically starts to maintain the pressure.

The Auto Pump motor is directly coupled to the compressor section eliminating all belts and pulleys and assuring long life and reliable operation. A heavy duty pressure switch is adjusted to start the compressor when the system pressure drops below 70 psi and stops the compressor when 90 psi is attained. The start up pressure is field adjustable - the pressure differential between start up and stopping is fixed. The Auto Pump requires no routine maintenance.

Features:

  • Maintains air pressure in the vehicle brake system.
  • Completely automatic operation controlled by integral pressure switch.
  • No interference with operation of the engine mounted air compressor.
  • Small size-mounts anywhere.
  • Simple installation.
Specifications:
  • Input: 120 volts A.C. 60 Hz, 4.2 amps
  • Weight: 13 lbs
  • Motor Horsepower: 1/8 HP
  • Motor Type: Shaded pole A.C.
  • Compressor Output: 0.76 CFM Open Flow, 100 PSI max.
  • Pressure Switch: Adjustable Set Point-Factory set to 70 PSI Cut-in, 90 PSI Cut-out
  • Outlet Connection: 1/4 NPT, Female
  • Warranty : 1 Year

Instruction Manual

Part #654542100

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