The Kussmaul 12-Volt Auto Pump 091-9-12V is a small air compressor designed to mount on vehicles with air brakes to maintain the air pressure in the air brake system while the vehicle is not in use. A pressure switch senses when the system pressure drops and starts the compressor which then runs until pressure is restored. All ball bearing construction, lubricated for life, assures reliable operation and requires no servicing.

Features:

• 100 PSI Max Rating, 12V, 11A
• The vehicle mount compressor ensures truck air brake system is properly pressurized for immediate dispatch from station
• Pressure switch regulated operation automatically senses low pressure in air system and restores proper pressure, preventing brake lock-up
• No interference with engine mounted air compressor
• Factory set PSI actuation points: 75 "On", 95 "Off" with Adjustment differential 20 PSI
• Sealed ball bearings for long service life
• Compact Size
• 2-Year Warranty