The Lyman 55 powder measure is a stalwart in the reloading world, known for its reliability and precision. However, like any piece of equipment, it can require maintenance and occasional part replacements. This guide will break down the common components of the Lyman 55, discuss potential problems, and offer advice on sourcing replacement parts.
Understanding the Lyman 55's Key Components
Before diving into troubleshooting, let's familiarize ourselves with the crucial parts of the Lyman 55 powder measure:
1. The Body:
This is the main housing of the measure, containing the mechanism and holding the various parts together. Wear and tear on the body is usually minimal unless subjected to significant impact or corrosion.
2. The Hopper:
The hopper is the top section where you add your powder. Ensure it's clean and free from any obstructions to prevent inaccurate measurements. A damaged or cracked hopper will need replacing.
3. The Powder Drop Mechanism:
This is the heart of the Lyman 55. It includes:
- The Measure Wheel: This is the rotating component that dispenses the powder. Wear on the wheel can lead to inconsistent charges.
- The Adjustment Screw: This allows you to precisely calibrate the amount of powder dispensed with each throw. A damaged or stripped adjustment screw will necessitate replacement.
- The Micrometer Adjustment (if applicable): Some models feature a micrometer adjustment for extremely fine-tuning of the powder charge.
4. The Primer Tray (Optional):
Some variations of the Lyman 55 include an integrated primer tray. This requires careful handling, as damage can compromise both its functionality and reloading safety.
5. The Base:
The base provides a stable foundation for the entire mechanism. Issues with the base are usually related to damage or corrosion.
Common Problems and Part Replacements
Here are some common problems encountered with the Lyman 55, along with solutions:
Inconsistent Powder Charges:
- Cause: Often caused by a worn measure wheel, a dirty or clogged mechanism, or incorrect adjustment.
- Solution: Carefully clean the entire mechanism. Inspect the measure wheel for wear; replacement may be necessary. Check the adjustment screw for proper function.
Powder Bridge Formation:
- Cause: Occurs due to the powder's characteristics or static electricity.
- Solution: Use a powder funnel to ensure a consistent flow of powder into the hopper. Consider using a powder anti-static tool.
Damaged or Missing Parts:
- Cause: Accidental damage during use or storage.
- Solution: Lyman, or other reloading supply retailers, should stock replacement parts. You may need to provide the model number for accurate sourcing.
Maintaining Your Lyman 55 for Optimal Performance
Regular cleaning and maintenance are crucial for the longevity of your Lyman 55:
- Clean the entire mechanism thoroughly after each reloading session. Use a soft brush and compressed air to remove any powder residue.
- Inspect all parts for wear and tear. Replace any damaged or worn components promptly.
- Lubricate moving parts sparingly. Use a light gun oil to ensure smooth operation.
- Store your Lyman 55 in a clean, dry place. Protect it from dust and moisture.
By understanding the components of your Lyman 55 and addressing potential issues proactively, you can ensure years of reliable and accurate reloading. Remember, safety is paramount when reloading ammunition. Always refer to the Lyman 55's manual and follow all safety precautions.
