12 Volt Compressor On/Off Switch Replacement

Tools and Materials Needed

  1. Solinst 12V Compressor On/Off Switch (Set of 10) (#111839)
    • 1/4" Inner Melt Heat Shrink
  2. 3/8" Wrench
  3. 5/32" Allen Key
  4. Pliers
  5. Wire Cutters and Strippers
  6. Solder and Wire
  7. Heat Gun

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On/Off Switch
(comes with set of 10)

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1/4" Heat Shrink
(cut into two 1" pieces)

 

 

Instructions

 

CAUTION:

Ensure the power supply is disconnected from the 12V Compressor and the pressure has been fully vented from the tank.

 

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  1. Pull to remove the leads from the motor assembly. Remove the air line from the fitting on the motor assembly.
  2. Use the 3/8" wrench to stabilize the nuts, while using the 5/32" Allen key to undo the bolts holding the motor assembly to the Compressor frame.

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  1. Remove the motor assembly from the Compressor frame. Note, the motor will still be connected to the Compressor by a black ground wire.
  2. Disconnect lead that connects the 12V compressor on/off switch to the fuse.

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  1. Use the pliers to undo the nut holding the on/off switch in place, and remove the switch from the Compressor frame.

Note:

You will re-use the "ON/OFF" metal label from the old switch.

 

12 volt compressor remove switch with pliers

  1. Cut the leads off the old on/off switch as close to the switch as possible. Remove the old heat shrink and strip the ends of the leads. Slide a 1" piece of heat shrink onto each lead.
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  1. Solder the leads to the new on/off switch. The white lead goes to the middle terminal, and the red lead to the other.
  2. Slide the pieces of heat shrink over the soldered connections and shrink in place using the heat gun.
  3. Ensure the hex nut is screwed 1/3 of the way onto the new switch. Place the switch through the opening in the compressor frame, ensuring the terminal with the red lead is to the right.
  4. Place the metal on/off label over the new on/off switch, ensuring the side labeled "ON" is next to the fuse. Secure the switch using the nut.
  5. Reconnect the lead from the on/off switch to the fuse.
  6. Use the bolts to mount the motor assembly back onto the Compressor frame.
  7. Reconnect the leads to the motor assembly. The lead from the on/off switch goes to the closest/inside connection.
  8. Reconnect the air line to the motor assembly.