Ingersoll Rand - Rand Type - 30 Reciprocating Air Compressor - 5 Hp, 230 Volt 1 Phase, Model - 2340L5 - Answered Questions & Fixed issues

Question moved from Car Audio. Not detailed enough https://www.manualslib.com/manual/579344/Ingersoll-Rand-2340.html?page=14 No other information https://www.google.com/search?q=Ingersoll+Rand+2340+start+capacitor+wiring+diagram ..

Does it have separate compressors on tank?. You probably need to adjust cut in and cut out pressure switch. I have seen several air delivery systems that utilize 2 separate compressors, this allowed a backup if the one online failed. The units had unloader valves and the compressor never stops running. A call for air pressure would close unloader valves and unit would pump up and the the valves would unload.

it will need flushing the oil we use in reciprcating compressors is 2100

Probably a faulty non return check valve, when the unit reaches pressure air in the delivery pipe is vented down at the pressure switch. If the check valve is passing back this will cause the unit to try to start against a pressure causing it to pull high amps and trip. If there is a constant hiss coming from the pressure switch when the unit stops it will be the non return valve. There should be a short hiss of air when units stops If there is no hiss at all when the unit stops it could be a faulty pressure switch. If it is a quick fix would be to create a small leak on the delivery pipe to vent the line down.

the torque must use is 75ftlbs. that is for the air head. hope can help.

You can make your own gasket using a material such as Klinger Ferrofex SP/AF-II. If this specific material is not readily available, your automotive spares dealer should be able to supply a suitable alternative, but it needs to withstand reasonably high temperatures and be somewhat compressible to seal against pressure pulses.

The solution was easier than I expected. Ingersoll Rand "Select" oil is a synthetic oil recommended by Ingersoll as better than mineral oil. T30 (mdl 2475) and T21 are different styles of compressors. So, yes "select" oil can be used in the Model 2475 compressor.

Install a regulator

See the attached link for trouble shooting your compressor.

Air compressors are rated for a maximum pressure and maximum output flow. Your description implies more air is going out of the compressor than it's designed flow rate. Check for a major leak at hose fittings or around the compressor. If this is an old unit, a compressor gasket could be cracked or broken.

You need a single phase motor to do that. A 3 phase motor cannot be made to run on one phase.

non detergent 30w if you mean what kind of oil for the pump if not, what do you mean ???

IF YOUR PRETTY SURE DRAW A CAPACITOR WIRING DIAGRAM AND THEN TAKE YOUR CAPACITORS TO ANY MOTOR SHOP OR SUPPLY HOUSE LIKE WW GRAINGER. THEY CAN CHECK THE MICROFARRADS OR UNIFARRADS OF YOUR CAPACITORS. YOUR START CAPACITORS HAVE THE LARGER MF OR UF RATING AND ARE TYPICALLY LARGER IN SIZE. YOUR P.O.S. INGERSOL RAND MAY EVEN BE A 3500 RPM MOTOR AND COULD HAVE UP TO 5 CAPACITORS. 3 OF WHICH ARE START. IS YOUR WIRE LARGE ENOUGH? IS YOUR BREAKER LARGE ENOUGH? IS YOUR COMPRESSOR UNLOADING THE HEAD PRESSURE WHEN IT CUTS OFF? IS IT OUTSIDE AND TOO COLD IN THE MORNINGS? MAKE SURE YOUR WIRING IS LARGE ENOUGH BECAUSE THAT IS USUALLY THE PROBLEM. YOU HAVE SINGLE PHASE BUT IS YOUR VOLTAGE CORRECT 208V OR 230 V. ALL WIRING AND GAUGING CHARTS ARE BASED ON 100 FT OF WIRE . MOST COMPRESSORS PULL 3 TIMES THE AMP RATING ON INITIAL STARTUP THEN COM DOWN TO AMPS LISTED ON THE MOTOR.

You may find your parts manual for your compressor here http://www.about-air-compressors.com/Ingersoll-Rand-air-compressors.html Just scroll down the page, the manual for an IR 30 is there, also on that website, you may find the problem to your compressor

3 phase 7.5hp magnetic start wire schematic

Change the settings on the pressure switch. Brad Brown has a good description of the pressure switch

Alot of the older units did not have a sight glass. They had a dip stick on the fill plug. Over the years they broke off or the oil fill plug was replaced with a newer type that does not have the dip stick. To answer your question dip stick or not I always fill with oil to the bottom of the threads on the fill plug. You should remove the plug and check the oil level before each use on and older unit like this until you have a good handle on how much oil it uses. you may also be able to remove a plug usually on the front of the case lower left side and install a sight glass or low oil level switch. Have a good day!!

Does this unit have a magnetic starter or just the pressure switch?Here are a few items I would check. Make sure power is unplugged. 1 - If it has a magnetic starter remove the box cover. you are checking the starter to see it has stuck closed. In the center of the starter should be what appears to be an indentation. use a screwdriver and push in on it. If it moves in and out freely it's OK. If it will not move you've found your problem.replace starter. 2 - Check the wiring to the starter. Black wire from motor should be on left bottom on overload. White motor wire should be on right bottom of starter. Incoming power should be located on top of starter left and right side. NO Starter, pressure switch only. 1 - Remove pressure switch cover. Inspect pressure switch contacts to see if they are open or closed. If contacts are open move on to wiring inspection.If closed drain all air out of tank. while draining air watch pressure switch contacts depending on pressure switch setting contacts should open around 130 - 135 psi. if all air drains out of tank and contacts do not open use a small screw driver and gently open contacts. They probably welded themselves together. If this is your problem I would get some new contacts. 2 - inspect wiring, left side of switch should have one wire from incoming power on top screw and motor wire on bottom screw. Right side of switch should have one wire from incoming power on top screw and motor wire on bottom screw. Good luck.

It sounds like the run capacitor needs to be replaced. If yours is weak or defective the motors run windings will over heat and trip the overload. You can find replacements at "Drillspot". Another issue is using an extension cord that cannot handle the load.

Don F

Pressure switches are set at the factory and are marked as to the range. If your pressure switch is marked with range to 150 probably best to not try to adjust, however you could increase the pressure somewhat by turning screws under the cover (google your brand/model # of pressure switch for adjustment). If your switch is marked to 175 and the compressor runs and never reaches cut off, then problem exists within pump or there is a leak in the system. If your switch is marked to 150, my suggestion is to leave as is to increase the life of the compressor. It is never a good idea to use a tool at max setting. Try to use tools to about 75-80 % of rating /duty cycle. You practice this every day with your car/truck. Although you can travel at 100 mph you drive reserved to take care of your engine/trans. good luck