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How to connect the switch on air compressor makita mac5200

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  • 2 Answers

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Posted on Jan 02, 2017

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  • 1383 Answers

SOURCE: Makita MAC2200 runs fine (with new Manifold Switch

I have worked on many makita compressors and have run-across this problem on a few of them. Your compressor has a check valve that is supposed to hold tank pressure after the switch reaches set pressure. There is an unloader valve built into the pressure switch that releases the pressure in the discharge hose after the unit shuts off. The unloader allows the compressor to restart with-out any pressure in the discharge line. If the brass check valve is leaking pressure back into the system, air will leak out of the unloader valve. Follow the discharge line to the tank and you will see the brass check valve. To test valve for fault, run the compressor till it builds around 80 psi and unplug the unit from the wall outlet. Remove the 1/4" hose connector from the check valve and check for air leaking out of the valve. If it is leaking you can order form www.toolpartsdirect.com. or call the makita 1-800 number. The price is about the same. Good Luck on your repair.

Posted on Mar 19, 2009

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SOURCE: Makita MAC5200 Compressor. Leaks

There are two types of regulators used. One has a rubber diaphram sealed at perimeter with body and a piston type. Most likely you have the piston type. Remove body containing piston/ spring mech. Examine piston lip seal. Lip will face toward body of reg. and must fit snugly into cylinder. Make sure cylinder is smooth and is well lubed.
If seal/piston fits loose remove seal and wrap some teflon tape in groove and re-install lip seal /test for snug fit. Notice small metal actuator extending from center of reg. , if it is circular (about 1/8 dia) then there should be an oring of the same size mated/fit into the piston. If this oring is missing it will leak as you describe. Lastly, there should be a gasket or oring sealing outer shell to body. If you have diaphragm type look for holes, tear or shrink too small. Parts are at www.toolpartsdirect.com or Lowes in the plumbing department good place for orings and silicone lube. Good luck

Posted on Sep 28, 2010

  • 1383 Answers

SOURCE: I need to replace one of the gauges (cracked the

Makita has used several types of gauges over the years and all had removable lens/glass held on by screw or threaded lens. Most simple repair would be to purchase gauge and just swap out glass/lens. Order from www.toolpartsdirect.com. Good luck

Posted on Jan 12, 2011

Testimonial: "That helps, thanks!"

  • 41 Answers

SOURCE: On my Makita air compressor

That is the unloader valve and it supposed to release a little bit of air when it stops. That takes the pressure off of the pump which enables it to restart easier.

Don F

Posted on Sep 09, 2011

  • 41 Answers

SOURCE: makita mac5200 compressor doesnt like the cold

Mobil 1 30 is what Campbell Hausfeld recommends. I have been using it for years. Their are many additives that make up a varied range of applications, so be sure to avoid them by using a good grade of non-detergent oil if you must use anything other than compressor oil or a synthetic. Some places to find compressor oil are K-mart / Sears,Harbor Freight and Home Depot / Lowe's

Don F.

Posted on Sep 23, 2011

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1 Answer

Thermo overload switch keeps tripping


Your pressure switch that shuts off the motor isn't working causing the motor to overheat. If you think the pressure switch is ok then the motor may have a shorted winding inside.

Oct 01, 2014 | Makita Mac5200 138a 3 Hp 5 Gal Wheeled Air...

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I have a Makita MAC5200 and the guage is showing 120PSI , tank has pressure, yet I can't get any air from valves. Any suggestions would be appreciated.


Plunger inside the regulator could be stuck or adjustment knob stripped. Let the air out of the tank and take the regulator apart, lube with light grease (no kit available for this reg.). The factory part is expensive so replace (if needed) with generic, careful with size however because there is not much room under the panel and between the gauges . Easy temporary fix. Remove the safety pop valve and install a tee (or check under the pressure switch for spare port) re- install pop valve on the tee fitting. On the second port of tee fitting install a quick connect valve for full pressure. Generic regulator is sold at Lowes that can be installed on the temporary port.

Nov 03, 2011 | Makita MAC5200 Electric Powered Air...

1 Answer

Where is the reset button on the mac5200


The reset button on these types of compressors is mounted on the outside ridge of the motor endcap on the end opposite of the pump. It may or may not be concealed by the motor cover. Some are accessable through holes or the vent slots on the motor cover but on a few models you have to remove the motor cover to get at the switch.

Oct 25, 2011 | Makita MAC5200 Electric Powered Air...

1 Answer

On my Makita air compressor model MAC5200 when it stops running after the air tank is up to pressure there is an air leak on the side of the on/off control valve. It is coming out of a small hole in a...


That is the unloader valve and it supposed to release a little bit of air when it stops. That takes the pressure off of the pump which enables it to restart easier.

Don F

Aug 29, 2011 | Makita MAC5200 Electric Powered Air...

1 Answer

Mi problema es un compresorde marca makita5200 y no me prende y no tengo el manual de aparato


Perdon porque mi espanol no es muy bueno, usted puede encontrar la lista de parts de su compressor al localacion siguente.


http://www.toolpartsdirect.com/cgi-bin/schematic.cgi/makita/MAC5200/

Su comperssor tiene un boton reset que puede estar roto (y si ya a marcado el boton). Tambien, la cajita negra /gries electronico tiene contactos que se ceman. Y si estan en buenos condiciones (electronico y reset) hay que revisar los carbones de el motor (en compressor que no usa oil)

Apr 24, 2011 | Makita Mac5200 138a 3 Hp 5 Gal Wheeled Air...

1 Answer

I need to replace one of the gauges (cracked the glass) on my Makita MAC5200 compressor. Is there somewhere I can find the instructions for doing so?


Makita has used several types of gauges over the years and all had removable lens/glass held on by screw or threaded lens. Most simple repair would be to purchase gauge and just swap out glass/lens. Order from www.toolpartsdirect.com. Good luck

Jan 12, 2011 | Makita MAC5200 Electric Powered Air...

1 Answer

My Mac5200 compressor was running fine. I took a


piston rings or valves in the head,,, valves are the most likely one.

Dec 13, 2009 | Makita MAC5200 Electric Powered Air...

2 Answers

Makita mac5200 compressor doesnt like the cold would like to swap oil for synthetic what should i use for winter


hi buddy compressor oil is oil there is no synthetic its one type really i will run on any compressor oil its not an engine you can buy oil on ebay buddy

Oct 14, 2009 | Makita MAC5200 Electric Powered Air...

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