Disassembling Brunswick Phonograph Motors

If you're looking to disassemble a Brunswick phonograph motor, there are a few things to keep in mind. Firstly, it's important to identify the specific model of the phonograph as different models may have unique disassembly requirements. Secondly, it is recommended to consult a specialist or technician with experience in phonograph repair and restoration. They can guide you through the process and provide advice on any necessary repairs or maintenance.

Some common issues with phonograph motors include broken main springs, dirty or hardened grease in the springs, and broken speed governor parts. It is crucial to address these issues carefully to avoid further damage to the device.

Cleaning the Brunswick Panatrope Reproducer

The Brunswick Panatrope Reproducer is a remarkable machine that can play both acoustic and electrically recorded records with equal fidelity. While the machine is known for its durability, after 80-100 years, it may need to be rebuilt and require new parts.

If you are experiencing poor sound quality, it is likely that your machine needs to be cleaned and/or oiled. You can start by cleaning the inside of the machine, including removing old needles from the horn.

To disassemble the reproducer, you will need to remove the ring on the backside of the reproducer. You can do this by measuring the distance between the two small slots on each side of the ring. Then, take a small piece of wood and drive two small nails into it at that distance. Insert the nails into the slots on the reproducer and turn the wood piece like a wrench, counter-clockwise.

Once the reproducer is disassembled, you can clean and oil the individual parts. It is recommended to lightly oil the pivot points. You can also replace old gaskets and springs, and adjust the alignment to improve sound quality.

If you are unsure about disassembling and cleaning the reproducer yourself, you can seek the help of a professional, such as Wyatt Markus, who is experienced in rebuilding phonograph reproducers.

Using headless nails to disassemble the reproducer

To disassemble the reproducer of a Brunswick Panatrope portable, you can use headless nails. Drive a couple of headless nails into a piece of wood, ensuring they are far enough in so they don't bend. Then, insert the nails into the two small slots on each side of the ring on the back of the reproducer. Turn the wood piece like a wrench, counter-clockwise, to unscrew the ring.

Alternatively, you can send the reproducer to a specialist, such as Wyatt Markus, who can rebuild it. They may suggest that it needs spare parts, fresh gaskets, and alignment to improve the sound quality.

Before attempting to disassemble the reproducer, it is recommended to try some basic troubleshooting steps. These can include cleaning the inside of the machine, dumping old needles out of the horn, and lightly oiling the pivot points. These steps may help improve the sound quality without needing to disassemble the reproducer.

Oiling the pivot points

Before beginning, ensure you have the necessary tools and materials, including a small amount of lightweight machine oil, a piece of absorbent cotton or a small brush, and a steady work surface. It is also recommended to have some knowledge of the inner workings of your specific Brunswick model, as different models may have slight variations in their pivot point mechanisms.

Firstly, locate the pivot points within the motor assembly. These are the points where metal parts rotate or pivot against each other, and they are often located near the main spring and governor assembly. To identify them, look for small metal pins or axles that are inserted into holes or bearings. These are the critical areas that require lubrication.

Once you have identified the pivot points, use a small brush or cotton swab to gently remove any dirt, dust, or old grease buildup. It is important to clean these areas thoroughly to ensure that the oil can effectively penetrate and lubricate the moving parts. Be careful not to apply too much pressure, as these components are delicate and can be easily damaged.

After cleaning, carefully apply a small amount of lightweight machine oil to each pivot point. Ensure that the oil is specifically designed for use in mechanical applications and will not damage the metal components. Apply just enough oil to form a thin film on the moving parts, being careful not to over-oil, as excess oil can attract dirt and grime, which can impede performance.

Finally, reassemble the motor, being careful to align all components correctly. Test the phonograph to ensure that it is functioning properly and that the oiling has improved the performance of the pivot points, resulting in smoother and more efficient operation.

It is important to note that disassembling and oiling a phonograph motor is a delicate process, and if you are unsure or uncomfortable with any aspect of the procedure, it is best to consult a professional repair service or seek advice from experienced individuals.

Removing the ring on the back of the reproducer

To remove the ring on the back of the reproducer of a Brunswick Panatrope portable, you can make a "wrench" to unscrew it. First, measure the distance between the two small slots on each side of the ring. Then, take a small piece of wood and drive two small headless nails into it at the appropriate places. Insert the nails into the slots on the reproducer and turn the wood piece like a wrench, counter-clockwise, to unscrew the ring.

• Measure the distance between the two small slots on each side of the ring.
• Take a small piece of wood, such as a wooden block or a thin piece of wood.
• Drive two small headless nails into the wood, making sure they are spaced apart according to your previous measurement. The nails should be driven in far enough so they don't bend.
• Insert the nails into the slots on the reproducer, ensuring they fit securely.
• Turn the wood piece counter-clockwise, as if it were a wrench. This should unscrew the ring on the back of the reproducer.

It is recommended to exercise caution when performing this task, as improper handling can potentially damage the delicate components of the phonograph. If you are unsure about any steps or feel uncomfortable proceeding, it is advised to consult a professional or seek further guidance.

Sending the motor for professional repair

If you're unsure what's wrong with your phonograph motor, you can call a field service technician to evaluate it and advise whether it can be repaired onsite or needs to be sent to a repair shop.

When selecting a motor repair shop, it's important to consider factors such as fast turnaround time, reliability, and technically skilled staff. It's also worth noting that lower horsepower motors are more likely to be replaced, while higher horsepower motors are more likely to be repaired, with cost being a significant factor.

• Specialty: Ensure the shop has experience with similar motors. For example, if you have a large motor, ensure they have the capacity and capabilities to handle it.
• Capacity and Capabilities: They should have the necessary equipment, such as a surge tester and a well-managed power supply, to run diagnostics and perform repairs.
• Repair Materials Inventory: Ensure the shop has a suitable inventory of repair materials, or can quickly restock if needed.
• Staff Experience: Choose a shop with satisfied, skilled, and knowledgeable technicians.
• Record-Keeping: Comprehensive record-keeping is essential for preventing and diagnosing issues and honouring warranties.
• Cleanliness and Organization: A clean facility indicates good quality management and protection of materials and supplies from contamination.
• Standard Operating Procedures: Look for proof of their system for maintaining quality, such as documents outlining standards, testing procedures, forms for record-keeping, and calibration records.

When sending your motor to a repair shop, follow these packaging and shipping guidelines:

• Ensure you're shipping the correct motor.
• For large fabricated frame motors, lift from all four corners with the load evenly distributed to avoid twisting the frame.
• Position a motor with a large stator on the truck bed just ahead of the rear axle, centring it side-to-side.
• Ship vertical motors vertically, ensuring the load is secure and planning the route to avoid low overpasses.
• Drain the oil in vertical motors to prevent splashing and wicking.
• Use boards to block the shaft of sleeve bearing motors.
• Reuse conveyor belting under ball or roller bearing motors to lessen vibration and avoid bearing damage during transport.
• Secure the motor according to loading regulations and tarping the load.

By following these steps, you can ensure your Brunswick phonograph motor is properly prepared for professional repair.

Frequently asked questions