SWITCH (WIRE CONNECTION SCREWS 2607200385

Bosch 1274DVS Switch and Sliding Plate Replacements
Remove upper handle casing w/ T20 (2 screws). Screws are recessed in wells that require a narrow shafted screwdriver...the T20 in my interchangeable bit set was not long enough.
Using lg precision screwdriver, remove 2 silver screws holding black and white power input conduc ... Read more tors. (Save and reuse screws as they are not included w/ new switch).
Insert small precision screwdriver blade tip into flat sockets on top of 2 white output wire male blade terminals to allow them to be slid out of the switch.
Install 2 silver screws into new switch (do not fully tighten).
Remove old switch and insert new switch into handle housing (do not seat it down fully yet).
Insert and tighten power input conductors and tighten silver screws.
Push male blade terminals into switch receptacles.
Route wires along switch and seat switch down into handle housing.
Replace upper handle housing and tighten T20 screws.
...also replaced sliding plate pad on belt shoe using standard, flat bladed screwdriver.
Notes: a photograph of the switch and wire positions prior to disassembly is helpful for reference. The repair process is simple but requires the correct tools. In my case, I was sent an incorrect part (switch), and had to return and reorder, adding to the cost and time. This tool had given me 9 years of good service before needing repairs. I expect to have it for many years to come.

1. Removed the upper switch housing.
2. Removed the power to the switch wires.
3. Lifted the switch out of its mount.
4. Removed the two wires to the motor.
5. Reversed the whole procedure for installing the new switch.
6. Remove the motor brush housing.
7. Lifted each motor brush assembly out.
... Read more 8. Removed old carbon brush.
9. Inserted new carbon brush.
10. Reinstalled plastic housing.

Split the sander handle apart, removed broken switch and installed new switch

1. remove 2 torx screws in handle to uncover switch
2. pull two outgoing power wires out of friction connectors.
3. loosen two set screws with mini screw driver to remove incoming power wires.
4. reverse above with new switch
5. reinstall cover

1. remove two screws holding slider plate
2. replace

Your web site was very helpful in identifying the potential reason for my sander not working. 75% of the time it was due to a faulty switch. I tested the switch with my voltage meter and found that electricity was delivered to the switch properly but then the switch was not delivering the current to the motor. I ordered the new switch, re ... Read more ceived it in 3 days and completed the fix. A happy success story for my favorite belt sander.