How to Repair a Sawzall Switch

A Sawzall is a reciprocating saw, which is a powerful tool used in the construction, demolition and renovations. Because of the Sawzall's harsh use in cutting a variety of materials such as wood, metal, nails, sheetrock, cement board and singles, the switch is prone to get debris in it and stop working. Some switches can be repaired with cleaning, but most have to be replaced.

DeoxIT D100 Contact Cleaner & Rejuvenator
Compressed air
Air blower
Assorted screwdrivers
New switch
Safety glasses

Instructions

- 1
  Blow out the switch with compressed air and a blower. Engage the switch multiple times while spraying the compressed air. Spray liberally with the Deoxit while working the switch. Repeat blowing out the switch with compressed air.
- 2
  Plug the tool in and engage the switch. If the tool works normally, the saw is fixed. If not, proceed with switch replacement.
- 3
  Remove the case screws. Separate the case. Remove the switch screw if present. Remove the switch from the case supports. Disconnect the terminal wires.
- 4
  Connect the wires to the new switch. Install the switch onto the case supports. Install the trigger screw if present and align the case back together. Align the pins and screw holes. Replace and tighten all the case screws.
- 5
  Plug the saw in and engage the new switch.

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