INTRODUCTION
The 091-9B-4-AD Auto-Pump Air Compressor system is a 120 volt 50/60 Hz 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 slight
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est 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 assuring long life and reliable operation. A heavy duty pressure switch is ad
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justed to start the compressor when the system pressure drops below 75 psi and stops
the compressor when 95 psi is attained. The pressure switch is adjustable.
A moisture trap is mounted on the Auto Pump. This captures any condensate which
results from compressing the air.
The Auto Drain will automatically drain the
condensate when the pump turns off.
Please read and follow the installation instructions carefully . The Auto Pump requires
no routine maintenance. A careful installation will assure years of trouble free operation.
NOTE
THIS PUMP REQUIRES A MINIMUM OF 120 VAC FOR
OPERATION. AT LOWER VOLTAGES THE PUMP MAY NOT START
170 Cherry Avenue
West Sayville, NY 11796
www.kussmaul.com
Ph: 800-346-0857
Fax: 631-567-5826
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