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Trailer Light and Air Brake System Tester
The Express Garage Trailer Light and Air Brake System Tester was designed with three objectives: make it versatile, make it easy to use, and make it sturdy. It was designed to be a tool that anyone with even basice air brake knowledge can look at and instantly know how to use.
General Specifications | |
Scope of Equipment | Trailer lighting systems using a circuit scanning sequence with trailer air brake testing using radio remote-controlled air actuation from behind the trailer. |
Model Designations | 01012 |
Dimensions | 23.5"L x 4"H x 25"W overall, including handle and wheels. 43.38"H to top of gladhands when stored |
Cabinet | 16-gauge steel, base pan 14-gauge. Weldment forms basic structure. Black wrinkle finish |
Mobility | Two 8" solid rubber tired wheels w/ roller bearing hubs and grease fittings: two 4-1/2" swivel casters. Pull handle on caster end of cabinet |
Environmental | Weather, dust, oil, overspray, and dirt resistant. A cover is available for especially dirty environments |
Light / Electrical Testing Equipment | |
Light Testing Equipment | Complete built-in Scanner trailer light tester as described below |
Operating Voltage | 12 vdc (nominal) |
Wiring Protocol | SAE 7 Wire |
Scanned Circuits | Left Turn (1.5 sec), stop (3.0 sec), right trun (1.5 sec). Circuits are powered one ata time, and the sequence repeats indefinitely. |
Freeze Feature | Mode select switch start and stop scanning action as needed. Has center "all off" position |
Switched Circuits | "On-Off Toggle" switches control aux, marker, and tail light circuits |
Circuit Status Indicators | On red LED for each of the six circuits |
Low Battery Indicator | One red LED blinks at 11 volts, on steady at 10 volts |
Circuit Breakers | Aux, mark, tail - one 20 amp auto-reset circuit breaker. Left, stop, right - one 15 amp auto-reset circuit breaker |
Short Circuit Warning | One LED for 20 amp breaker, one LED for 15 amp breaker |
Current Capacity | 34 amps total |
Trailer Connection | SAE 7-Pole Plug w/cable protector spring |
Trailer Cable | 7-conductor trailer cable stores in cabinet, pulls out as needed. Can comfortably reach gladhands up to 7'4" from shop floor. Cable drops back into cabinet when you're done |
Auxiliary Ground Lead | 4 ft w/ twin 50 amp clips (for use if needed) |
Air Testing Equipment | |
Max Shop Air Pressure | 130 PSI internal safety valve pops at 150 PSI |
Air Filtration | Supply - Internal filter is 40 micron w/5 oz. bowl and auto-drain feature. Supply and control lines- twin filters protect the air solenoids from contaminants possibly back-flushing from the trailer |
Air Regulation | Supply - Variable regulator (2-125 PSI) controls supply pressure and feeds control pressure regulator. Control pressure regulator allows additional pressure reduction of control line if desired. Both regulators are adjustable on-the-fly for easy trailer air valve testing. |
Apply Speed Control | Control Side onl. Infinitely adjustable flow valve controls the speed of the service brake application. Brakes release at full speed regardless of apply speed control setting. |
Anti-Compounding | Accomplished electrically by interlocking air control solenoid wiring |
Air Pressure Gauges | Twin 2-1/2" precision pressure gauges indicate system pressures either available for application or actually applied to the gladhands (as indicated by the air pressure lights). Two PSI gauge increments for exact leak-down results |
Air Pressure Lights | Two large pressure lights each for supply and control light up when pressure is applied to their respective gladhands. One red light for supply and one blue light for control are located on the control panel, and one red light and one blue light are mounted low on the rear of the cabinet where they can be seen from under the rear of the trailer. |
Air Actuation | Twin channel radio remote-control unit operating supply and control air solenoids independently |
Air Hoses / Gladhands | Rubber air brake hose w/ color-coded gladhands for supply and control can comfortably reach connections 7'3" from shop floor. Air hoses pull up and out of the cabinet for use and drop right back in for neat, easy storage |