Bosch 11304 Demolition Hammer Manual

Here’s a short and simple maintenance schedule for the Bosch 11304 Demolition Hammer:

### Daily Maintenance:
– **Inspection:** Check for any visible damage or wear on the tool and its cords.
– **Clean:** Wipe down the exterior to remove dust and debris.
– **Lubrication:** Apply grease to the chuck if needed, following the manufacturer’s specifications.

### Weekly Maintenance:
– **Check the Brushes:** Inspect the carbon brushes for wear; replace if they are less than 1/2 inch in length.
– **Tighten Bolts:** Ensure all screws and bolts are tight, particularly around the handle and housing.

### Monthly Maintenance:
– **Inspect Cables:** Check the power cable for frays or damage.
– **Inspect the Piston and Hammer:** Open the case and check for wear on the piston and hammer; clean and lubricate as necessary.

### As Needed:
– **Replace Brushes:** If the tool is running poorly or has reduced power, consider replacing the brushes.
– **Service:** If excessive vibration or noises occur, it might be time for a more thorough inspection or servicing by a professional.

Always refer to the user manual for specific instructions related to your tool model. Regular maintenance will extend the life of your demolition hammer and ensure optimal performance.

Here’s a detailed product spec sheet for the Bosch 11304 Demolition Hammer:

**Product Name:** Bosch 11304 Demolition Hammer

**Specifications:**

– **Power Input:** 12 Amps
– **Impact Energy:** 38 Joules
– **Impact Rate:** 1,300 BPM (Blows Per Minute)
– **Weight:** Approximately 61 lbs
– **Dimensions:**
– Length: 28.5 inches
– Width: 11.2 inches
– Height: 12.5 inches
– **Cord Length:** 14 feet

**Features:**

– **Vibration Control:** Designed with a vibration control system for reduced fatigue during prolonged use.
– **Rotatable Armature:** Allows for a more balanced tool in different positions.
– **Service Indicator Light:** Alerts users when the carbon brushes need replacement.
– **Heavy-Duty Design:** Built for durability, making it suitable for demolition and breaking up concrete and masonry.
– **Tool Holder:** Accepts 1-1/8 inch hex shank chisels, featuring a quick-change system for easy bit changes.
– **Overload Protection:** Integrated feature to protect the motor from overheating.
– **Soft Grip Handle:** Ergonomically designed soft grip for comfort during extended use.
– **Dust Control:** Compatible with various dust collection systems for cleaner work conditions.

**Applications:**

– Demolition of concrete and masonry
– Chipping and breaking
– Heavy-duty tasks in construction and renovation projects

**Accessories Included:**

– Carrying case
– Chisel attachment (size may vary)

This Bosch demolition hammer is widely recognized in the construction industry for its reliability and power, making it a preferred choice for both professionals and serious DIY enthusiasts. Always refer to the manufacturer’s manual for safety precautions and operational guidance.

Here’s a common parts list for the Bosch 11304 Demolition Hammer along with their part numbers when available:

1. **Carbon Brush Set** – 1617011027
2. **Hammer Housing** – 1617011019
3. **Piston** – 1617011050
4. **Cylinder** – 1617011060
5. **O-Ring Set** – 1617011071
6. **Chisel** – Various options; typically use a compatible size such as 1-1/4″ hex (specific part numbers vary by type)
7. **Bit Retainer** – 1617011082
8. **Gripper Spring** – 1617011093
9. **Power Cord** – 1617011104
10. **Trigger Switch** – 1617011115

Please note that part numbers may vary based on the specific model or production year, and it’s always a good idea to consult the user manual or an official Bosch parts supplier for the most accurate and updated information.

Troubleshooting a Bosch 11304 Demolition Hammer involves a systematic approach to identify and resolve any issues. Here are some steps you can follow:

### 1. **Safety First**
– **Unplug the Tool:** Before performing any troubleshooting, ensure that the tool is unplugged from the power source to avoid any accidents.

### 2. **Check the Power Supply**
– **Inspect the Cord:** Examine the power cord for any signs of damage, fraying, or broken connections.
– **Test the Outlet:** Plug another device into the same outlet to ensure that it is providing power.

### 3. **Examine the Switch**
– **On/Off Switch Functionality:** Toggle the on/off switch to see if it feels loose or unresponsive. Sometimes, switches can fail.
– **Contact Points:** If possible, check the switch contacts for any signs of wear or corrosion.

### 4. **Inspect the Hammer Mechanism**
– **Brush Inspection:** Open the housing and inspect the carbon brushes. If they are worn down or damaged, they may need to be replaced.
– **Piston and Cylinder:** Check for any wear or damage to the piston and cylinder, as this can affect performance.

### 5. **Check the Chiseling Function**
– **Bit Connection:** Make sure that the chisel bit is properly connected and not damaged or worn out.
– **Hammering Action:** If the tool powers on but does not hammer effectively, this might indicate a problem with the internal mechanism.

### 6. **Look for Overheating**
– **Heat Detection:** If the tool has overheated, it may have a thermal overload switch. Allow it to cool down and test again.
– **Ventilation:** Ensure that air vents are not clogged with dust or debris which could cause overheating.

### 7. **Listen for Unusual Noises**
– **Operational Sounds:** When powered, listen for any grinding or unusual sounds that might indicate internal damage or misalignment.
– **Vibration:** Excessive vibration may signify a worn-out part, such as bearings.

### 8. **Consult the Manual**
– **User Manual Reference:** If you still cannot determine the issue, consult the user manual for further troubleshooting information specific to your model.

### 9. **Seek Professional Help**
– If the problem persists after performing these checks, consider reaching out to a professional technician or the Bosch service center for further assistance.

By following these steps, you should be able to diagnose common issues with the Bosch 11304 Demolition Hammer effectively.