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Hi I have a makita drill 18 volt. I lent the drill to a friend and got it back not working properly. When I squeeze the button, the motor is running but the head of the drill is not turning and doesn't turn the screw. It makes a funny noise like the head is slipping and not gripping anymore inside. Please help!
Re: Hi I have a makita drill 18 volt. I lent the drill to...
Check the speed control. There is a speed control usually from hi to low... sounds like it's in between speeds... try adjusting it back and forth... It should go back into one gear and work fine.
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Your most likely problem is the switch (PN 650583-6). When they go bad they will let power go to the LED light but it won't get to the motor. With a multi-meter, check the power going into the switch and coming out to the motor. If 18 volts are getting through to the motor then you may have armature (PN 619198-8) issues.
the switch or motor is wired incorrectly. These parts are polarity sensitive. The smoking I would assume is from the old switch and now the rotation is reversed. Let me know if you need more assistance.
Well burning and smoke is either a switch or motor. Disconnect the motor and run it with battery voltage and no switch. If it's still slow and smokes it's the motor if not it's the switch. The other one sounds more like the switch but could be the motor. Testing would be the same as the other. On the 18 volt open it up and see if the reversing lever got hung up. It may be that you can line it back up and be ok. More likely it's a bad switch and needs to be replaced. All these tools have static sensitive switches and need to be worked on at a static free work station. Hope that helped..
Bjarne, odds are the variable speed function of the trigger is failing. There are Makita repair centers that perform repair, and sell parts if you want to take it on as a DIY project. Before proceeding, I would make sure the warranty has expired. If it is still in warranty a Makita repair center should repair it for no charge.
Join the battery collectors club. I have 25 batteries, 12 guns, I quit buying the batteries, I found it cheaper to buy the gun with new batteries and charger once a year. Cause they don't even last that long. I have tried different brands too all the same. Got batteries?? Sure do.
If the motor is working good then check the hammer and anvil to see if they are rounded over. A weak spring under the hammer can also add to this problem. Also check the spindle and the two steel balls that hold the hammer to the spindle. Sometimes the spindle will become chipped on the edge of the grooves and let the steel balls get out of alignment in relation to the hammer.
If the motor itself is loosing power with full batteries then you will need to check the brushes and the armature for damage. If the brushes are chipped or broken you should replace both the brushes and armature. Any questions please post back.
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