15T Compressor System Video Tape

The 15T Compressor System Video Tape was a training tape released in 1992 detailing how to service the 3-Stage Ingersoll Rand compressor.

Summary
In the first 30 minutes, a technician goes over the machine and its key points of failure that employees may face during operation.

The first section has the technician explaining the boot up process of the compressor, going over each stage of the process. Next he discusses the air bleeding done as the compressor starts up, opening up the compressor to demonstrate the actions of the machine. Next he goes over the build of the crankshaft, removing it from the machine and displaying it on a table. He then goes over a high-pressure piston from the machine, demonstrating a flaw that pools oil on the top of the piston if the machine is run too long, which may bleed oil out the air exhaust.

The next section has him going over troubleshooting of the oil level switch, which he considers the most frequent area for calls coming in for help. He explains the lever getting falsely triggered during colder months of the year due to how it affects the oil inside, recommending and demonstrating how to change the cutoff point to be lower as to prevent nuisance shutoffs.

The next area goes over the low pressure valve cylinder assembly, specifically the section that intakes and expels air. He disassembles this piece to demonstrate its parts, and pieces it back together on-camera to show how it works.

The rest of the tape goes over the control panel for the compressor, demonstrating each button's function, what it does using a wiring diagram of the circuit, and discussing further problems with the parts that make up the machine. The main flaw is noted to be the overload heater switch, which shuts off the machine when it is deemed too hot. The compressor room's ambient heat being too hot during summer months could lead to it being tripped more than needed, and recommends replacing the switch after about half a dozen trips as to keep its integrity to detect overheating.

After this, the section discussing the wiring diagram takes up the rest of the runtime, before a small section at the end demonstrates the compressor starting up and shutting off.