Dewalt drill/driver DCD771 Type1. When transmission is set 1 the clutch slips in all 15 settings, if you move selector to 2 the clutch seems to work as it should, is there problem with the transmission or something else?
The clutch is defective , you can get replacement parts from dewalt. There are several dewalt service centers in the US
SOURCE: dewalt dw056 motor working but no drive.
make sure the selector switch is in full rev or full forward and not in mid throw goose the trigger and turn the selector at the same time
SOURCE: I have a IR 2130
This gun shouldnt have an adjustment. If you cfm's from your compressor are enough. Too low cfm's mean lower torque. If cfm is high enough for the gun rating then I would say the gun is bad.
A good place to start with Dewalt tools is the switch. Take the front off the handle and pull the switch out far enough to test the posts on the back. Plug the cord in and check for voltage where the cord attaches to the switch. No voltage, bad cord, replace the cord. If you have voltage, the cord is good. With some help, hold the switch on and check for current on the motor side of the switch. If no voltage, replace the switch. If there is voltage there, you are going to have to check the brushes, armature and/or field for continuity or shorts.
SOURCE: repair intermittent switch on dewalt 20 Volt impact driver
Unfortunately Dewalt switches are solid state, meaning there is little to nothing you can do to fix them when they don't work. Occasionally spraying them with electronics cleaner and blowing them out with clean, dry air will make them work a little longer but more often than not you simply have to replace the switch. The part number for your driver is N084669. They cost between $65 and $75 so shop around or check with a local repair center.
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