20 Most Recent Bosch 13618 - 2G 18V Brute Tough Cordless Hammer Drill/Driver with core Questions & Answers

The problem is resistor R3 on the circuit board.Since there is 310 Volts (!) across this resistor, I would highly recommend taking it to a TV repair shop for repair unless you know exactly what you are doing and have the skills for repairing a PC board. Take this email with you when you go there.Be sure !!! to discharge the two large capacitors with a 10K resistor before attempting this repair - for days they will retain 165 Volts each across them after the power plug is pulled.The repair is easy - simply replace the resistor R3 with two 130K metal film 1/2Watt resistors in series. The existing resistor is marginally power rated and there is too much potential difference across it for safety. Make sure the two replacement resistors are enclosed in a heat-shrink tube before soldering onto the board.

Dear Fred, Please go to Replacement Parts in the link provided below. Too replace and remove your drill chuck on a cordless drill. How to Remove Drill Chuck Fare Well

Make sure it is in low gear on drill mode. try with just a bar in the socket and hit the end to shock it. This is sometimes better than a constant force.

I would think the brushes or motor is bad, or possibly a loose connection

Chech and see if the top selector is fully engaged, if it is, then you will have to replace the gearbox assembly. Any Bosch service dealer will have this part

Are you thinking you are posting to Bosch Technical Services or Bosch Customer Complaints Department? We are FIXYA dot com. It sounds like the battery is flat. Did you charge the battery? You can test the output voltage of the battery with a multimeter. You can't do anything else as that would void the warranty. Contact the company and claim on it. As it is only one month old you can ask the seller to change it or refund under the UK Sale of Goods Act 'not of merchantable quality'. I presume you are UK as you refer to the light as a 'torch'. I am British, but live in Canada. ..

If you've replaced the variable speed unit in your Bosch 11318EVS SDS-max Demolition Hammer and the variable speed is still not working, there could be a few potential reasons for this issue. Here are some steps you can take to troubleshoot and address the problem:

1. Check Wiring Connections: Ensure that all wiring connections related to the variable speed control are properly connected and secure. Loose or damaged wires can disrupt the variable speed function.
2. Control Switch: The control switch itself could be faulty. Test the switch to make sure it's functioning as intended. Use a multimeter to check for continuity across the switch terminals in different speed settings.
3. Speed Control Potentiometer: The potentiometer, which is responsible for adjusting the variable speed, could be malfunctioning. Test the potentiometer with a multimeter to ensure it's changing resistance smoothly as you adjust the speed.
4. Electronic Control Board: The issue could be with the electronic control board that governs the variable speed function. Inspect the board for any signs of damage, such as burnt components or solder joints.
5. Brushes and Carbon Motor Contacts: Worn brushes or carbon motor contacts can affect the motor's performance and, consequently, the variable speed control. Check the condition of the brushes and motor contacts and replace them if necessary.
6. Power Supply and Voltage: Ensure that the tool is receiving the correct power supply and voltage. Incorrect power supply can affect the tool's overall performance.
7. Manufacturer's Support: If you've exhausted your troubleshooting efforts and the variable speed is still not working, it's advisable to contact Bosch customer support or a professional tool technician. They can provide more specific guidance based on the model and diagnose the issue accurately.
8. Professional Repair: If the issue is complex or involves internal components, it might be best to seek the assistance of a professional tool repair technician who has experience with Bosch power tools.

Remember that working with power tools and electrical components carries inherent risks. If you're not comfortable or experienced with tool repairs, it's recommended to seek professional assistance to ensure safety and prevent further damage to the tool.

It sounds like the issue with your Bosch bulldog extreme max hammer is likely due to worn out or damaged brushes. Here are the steps to remove and replace the brushes:

1. Unplug the hammer drill from the power source.
2. Remove the two screws on the top of the hammer drill handle with a screwdriver.
3. Lift off the top of the handle to expose the motor.
4. Locate the brush holders on either side of the motor.
5. Gently pull out the brush holder on one side of the motor.
6. Remove the brush from the holder by gently pulling it straight out.
7. Repeat for the other side of the motor.
8. Inspect the brushes for damage, wear, or discoloration. Blackening of the brushes is normal, but if they are excessively worn or damaged, they should be replaced.
9. Insert the new brushes into the brush holders, making sure they are properly seated.
10. Replace the brush holder on one side of the motor, then the other.
11. Reattach the top of the handle and replace the screws.

Regarding the digs in the motor surface, if they are not too deep and do not appear to affect the operation of the motor, they may not need to be addressed. However, if they are deep or if they appear to be affecting the motor's performance, it may be necessary to replace the motor. It's important to note that working on power tools can be dangerous and should only be attempted by those with the necessary knowledge and experience. If you're unsure about any step in the process, it's best to seek the help of a professional.

Yes, the issue you're describing with the green power light coming on but the tool not functioning could be related to the trigger/switch. A malfunctioning trigger/switch can prevent the tool from operating properly. You may want to test the trigger/switch with a multimeter to see if it is functioning properly. If the trigger/switch is not the issue, it could be with the motor or power supply. In that case, I would recommend reaching out to a professional for repair

Question edited for clarity, add MAKER. Question moved from Cars and Trucks. You fill it. https://www.google.com/search?q=ubh+12%2F50+rotary+hammer+oil+change ..

Disassembly videos. You may be able to fix it with Electrical contact cleaner.

1. Make sure the drill is properly plugged in and that the outlet is functioning.
2. Check the power cord for any visible damage, such as frays or cuts, that may be preventing the drill from receiving power.
3. Check the switch or trigger for any debris or foreign objects that may be preventing it from functioning properly.
4. Check the battery for any visible damage or corrosion. If the battery is damaged or no longer holds a charge, it may need to be replaced.

Faulty switch or worn / badly seated carbon brushes are the most likely reason. https://www.google.com/search?q=Bosch+Bulldog+Cordless+hammer+drill+stops+working+when+pressure+is+applied+to+drill+bit ..

Take the battery off and look under there for the sticker with serial number on it :-)

Have you tried a tool repair service? My husband is always seeking advice from the tool professionals. Due to constant use, his chargers stop working often and, although he is a handyman himself, there are times when his own knowledge isn't sufficient. bourgetbros com

binding or overheating ---try lubing the gears-motor and anvil

If it is 15 years old the batteries will need replacing. They were the worst of all the battery types and were replaced by Nickel Metal Hydride and now Lithium. NiCad batteries suffer with 'Memory Effect' and also lost power in storage. Find the YouTube channel of 'Big Clive', he just did a video on battery types, pros and cons. https://www.youtube.com/c/Bigclive IIRC, two terminals are the charging plus and minus and the other two are for the charger diagnostics. ..

Yo should buy a new charger then, It sounds like and looks like the charger is no longer working anymore.