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MiTM Air Compressors AM1HE0205HD 2014 Pressure Switch Replacement

Introduction

Use this guide to remove or replace the pressure switch on a MiTM Air Compressor AM1HE0205HD 2014.

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  1. MiTM Air Compressors AM1HE0205HD 2014 Pressure Switch Replacement, Power off the compressor: étape 1, image 1 de 2 MiTM Air Compressors AM1HE0205HD 2014 Pressure Switch Replacement, Power off the compressor: étape 1, image 2 de 2

    • Before you begin, ensure the device is powered down and cool to the touch.

    • Ensure the compressor is unplugged.

    • Flip the pressure switch lever up to the off position.

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  2. MiTM Air Compressors AM1HE0205HD 2014 Pressure Switch Replacement, Drain the air from the compressor: étape 2, image 1 de 2 MiTM Air Compressors AM1HE0205HD 2014 Pressure Switch Replacement, Drain the air from the compressor: étape 2, image 2 de 2

    • Pull the ring on the safety release valve away from the compressor tank to drain the air from the compressor.

    • Ensure all air is drained from the tank before beginning repairs.

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  3. MiTM Air Compressors AM1HE0205HD 2014 Pressure Switch Replacement, Remove the pressure switch cover: étape 3, image 1 de 1

    • Use a 5/16 inch socket to unscrew the bolt securing the pressure switch cover.

    • This is a captive bolt and will stay attached to the cover after you unscrew it.

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  4. MiTM Air Compressors AM1HE0205HD 2014 Pressure Switch Replacement: étape 4, image 1 de 2 MiTM Air Compressors AM1HE0205HD 2014 Pressure Switch Replacement: étape 4, image 2 de 2

    • Remove the pressure switch cover.

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  5. MiTM Air Compressors AM1HE0205HD 2014 Pressure Switch Replacement, Disconnect the power cord: étape 5, image 1 de 2 MiTM Air Compressors AM1HE0205HD 2014 Pressure Switch Replacement, Disconnect the power cord: étape 5, image 2 de 2

    • Use a Phillips driver to loosen the three screws securing the power cord wires.

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  6. MiTM Air Compressors AM1HE0205HD 2014 Pressure Switch Replacement: étape 6, image 1 de 2 MiTM Air Compressors AM1HE0205HD 2014 Pressure Switch Replacement: étape 6, image 2 de 2

    • Slide the white power wire's spade terminal connector straight out from under its screw.

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  7. MiTM Air Compressors AM1HE0205HD 2014 Pressure Switch Replacement: étape 7, image 1 de 2 MiTM Air Compressors AM1HE0205HD 2014 Pressure Switch Replacement: étape 7, image 2 de 2

    • Slide the black power wire's spade terminal connector straight out from under its screw.

    • Slide the green ground wire's spade terminal connector straight out from under its screw.

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  9. MiTM Air Compressors AM1HE0205HD 2014 Pressure Switch Replacement, Remove the power cord: étape 8, image 1 de 3 MiTM Air Compressors AM1HE0205HD 2014 Pressure Switch Replacement, Remove the power cord: étape 8, image 2 de 3 MiTM Air Compressors AM1HE0205HD 2014 Pressure Switch Replacement, Remove the power cord: étape 8, image 3 de 3

    • Use a pair of needle-nose pliers to squeeze the locking tab on the power cord bushing inwards, toward the cord.

    • While squeezing the locking tab, slide the bushing out of its hole in the pressure switch.

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  10. MiTM Air Compressors AM1HE0205HD 2014 Pressure Switch Replacement: étape 9, image 1 de 1

    • Remove the power cord.

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  11. MiTM Air Compressors AM1HE0205HD 2014 Pressure Switch Replacement, Disconnect the secondary power cord: étape 10, image 1 de 1

    • Use a Phillips driver to loosen the two remaining screws securing secondary power cord wires in the pressure switch.

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  12. MiTM Air Compressors AM1HE0205HD 2014 Pressure Switch Replacement: étape 11, image 1 de 3 MiTM Air Compressors AM1HE0205HD 2014 Pressure Switch Replacement: étape 11, image 2 de 3 MiTM Air Compressors AM1HE0205HD 2014 Pressure Switch Replacement: étape 11, image 3 de 3

    • Slide the three secondary power cord wires out from under their respective screws.

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  13. MiTM Air Compressors AM1HE0205HD 2014 Pressure Switch Replacement, Remove the secondary power cord: étape 12, image 1 de 3 MiTM Air Compressors AM1HE0205HD 2014 Pressure Switch Replacement, Remove the secondary power cord: étape 12, image 2 de 3 MiTM Air Compressors AM1HE0205HD 2014 Pressure Switch Replacement, Remove the secondary power cord: étape 12, image 3 de 3

    • Use a pair of needle-nose pliers to squeeze the locking tab on the secondary power cord bushing inwards, toward the cord.

    • While squeezing the locking tab, slide the bushing out of its hole in the pressure switch.

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  14. MiTM Air Compressors AM1HE0205HD 2014 Pressure Switch Replacement: étape 13, image 1 de 1

    • Remove the secondary power cord.

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  15. MiTM Air Compressors AM1HE0205HD 2014 Pressure Switch Replacement, Remove the air hose: étape 14, image 1 de 2 MiTM Air Compressors AM1HE0205HD 2014 Pressure Switch Replacement, Remove the air hose: étape 14, image 2 de 2

    • Use a 1/2 inch wrench to loosen and remove the air hose from the bottom of the pressure switch.

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  16. MiTM Air Compressors AM1HE0205HD 2014 Pressure Switch Replacement, Unscrew the support bracket: étape 15, image 1 de 2 MiTM Air Compressors AM1HE0205HD 2014 Pressure Switch Replacement, Unscrew the support bracket: étape 15, image 2 de 2

    • Tilt the compressor on its side, so that the air tanks are on the bottom.

    • Use a 7/16 inch socket to remove the four bolts securing the support bracket to the compressor base.

    • As soon as you remove the bolts, the compressor motor will be free to fall. Make sure you have someone supporting the motor while you remove the bolts.

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  17. MiTM Air Compressors AM1HE0205HD 2014 Pressure Switch Replacement, Move the compressor motor: étape 16, image 1 de 2 MiTM Air Compressors AM1HE0205HD 2014 Pressure Switch Replacement, Move the compressor motor: étape 16, image 2 de 2

    • Tilt the compressor back onto its feet, while supporting the compressor motor.

    • Slide the compressor motor away from the air tanks so that you have enough space to rotate the pressure switch.

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  18. MiTM Air Compressors AM1HE0205HD 2014 Pressure Switch Replacement, Rotate the pressure switch: étape 17, image 1 de 2 MiTM Air Compressors AM1HE0205HD 2014 Pressure Switch Replacement, Rotate the pressure switch: étape 17, image 2 de 2

    • Use a pipe wrench to grasp the air tank nipple connecting the pressure switch to the air tank.

    • Use the wrench to rotate the nipple and the switch together counterclockwise far enough to access the brass plugs on the bottom of the pressure switch.

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  19. MiTM Air Compressors AM1HE0205HD 2014 Pressure Switch Replacement, Remove the brass plugs: étape 18, image 1 de 3 MiTM Air Compressors AM1HE0205HD 2014 Pressure Switch Replacement, Remove the brass plugs: étape 18, image 2 de 3 MiTM Air Compressors AM1HE0205HD 2014 Pressure Switch Replacement, Remove the brass plugs: étape 18, image 3 de 3

    • Use a 3/8 inch open-ended wrench to remove the three square head brass plugs on the bottom of the pressure switch.

    • To remove the plug that opposite the air tank nipple, brace the pressure switch assembly with a pair of channellock pliers or something similar.

    • You may need a lot of leverage to break the plug free.

    • During reassembly, transfer these plugs to the new pressure switch if it does not include new ones.

    • During reassembly, apply green thread locker (Loctite 290) to the plug threads to prevent the plugs from loosening.

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  20. MiTM Air Compressors AM1HE0205HD 2014 Pressure Switch Replacement, Remove the pressure switch: étape 19, image 1 de 1

    • Rotate the pressure switch and air tank nipple counterclockwise together to remove them from the air tank.

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  21. MiTM Air Compressors AM1HE0205HD 2014 Pressure Switch Replacement: étape 20, image 1 de 2 MiTM Air Compressors AM1HE0205HD 2014 Pressure Switch Replacement: étape 20, image 2 de 2

    • Use a pipe wrench to loosen and remove the air tank nipple from the pressure switch.

    • You may need to hold the pressure switch with channellock pliers or something similar while you loosen the nipple.

    • During reassembly, install the nipple back on the air tank before installing the new pressure switch.

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Conclusion

To reassemble your device, follow these instructions in reverse order.

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Adam O'Camb

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