Allen Magic Screed Parts Diagram Explained: Maintenance & Replacement Tips
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Noticing your Allen Magic Screed isn’t running like it used to? Whether it’s a worn clutch, a stretched throttle cable, or a damaged vibration mount, even small issues can throw off your results. And if you’ve opened the parts diagram only to wonder which component fits where, you’re not alone.
Knowing your Magic Screed's components and assemblies is critical to keeping it functioning smoothly and avoiding costly mistakes. In this article, we will breakdown the primary assemblies, identify common misunderstandings, and demonstrate what to look for while replacing or servicing your screed.
Overview: Allen Magic Screed Parts Diagram

Screenshot from DanseUSA’s HD2020 Allen magic screed parts diagram
This is the assembly drawing for the model HD2020 of Allen Magic Screed. Allen Engineering also has other models like HD6060, HD6161, and HD8080. They are configured similarly and the overall design concept is the same, but some components are different sizes.
The exploded diagram of the Allen Magic Screed has more than 40 parts and each part was labeled and numbered by hand. An exploded view is not only intended to depict what is there, it's meant to explain how all of the parts work together. For instance:
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The clutch assembly mounts to the engine and transfers movement to the screed head, so a spacer that is missing or an improperly sized bolt will impact vibration and surface finish.
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Throttle linkage and cable are installed accurately to manage speed; poor placement will produce unbalanced operation or premature wear.
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Vibration mounts and base plate make sure that the screed rides smoothly across concrete; misalignment here directly affects performance and lifespan.
By looking at this diagram, you can look at the precise spatial relationships between each component, which is key to understanding assembly sequences and the way that components mechanically interact.
If you'd like to view the assembly diagrams and separate parts for other Allen Magic Screed models, such as HD6060, HD6161, or HD8080, you can locate all here.
Now, prior to discussing the primary assemblies, it's necessary to clear up some typical misconceptions builders experience when choosing parts from these diagrams:
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Not all bolts, spacers, or brackets will fit all screed models even though they appear to be similar.
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One part can be part of a larger sub-assembly, such as the engine or blade assembly, and omitting this will mean that there are incomplete replacements.
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Diagrams often have detailed labels; reading them incorrectly can result in ordering the wrong component.
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Items like bushings, belts, and clamps often need replacement alongside main parts, but can be missed.
Main Assemblies Breakdown: Allen Magic Screed Parts
When it comes to keeping your Allen Magic Screed running efficiently, certain assemblies are more prone to wear and need frequent replacement. Most concrete screed replacement parts fall under one of these four key assemblies:
1. Engine Assembly Parts
The engine assembly of the HD2020 houses the parts that guarantee your screed is operating as it should. Among other needed parts you may need for replacement, we want to highlight the carburetor, which keeps a consistent supply of fuel for smooth operation; throttle cable, keeps the engine speed adjusted within the throttle; clutch, allows for a smooth transfer of power to the vibrator; fuel lines, gaskets, etc. that assist in preventing leaks. If any of the parts in this section are faulty or missing, it may cost you engine lag, unbalanced vibration, or even downtime on the job site.
If you’re looking to replace or inspect any engine component, check the HD2020 assembly diagram to see each part in context and order exactly what you need. You can also explore other models, like HD6060 or HD8080, to compare parts layouts and confirm compatibility before making a purchase.
2. Handle & Control Assembly
The control and handle assembly is where you control the screed's movement and power. Main components are the throttle lever, vibration switch, control cables, and grip. These components handle constant handling and exposure, so cable wear, switch failure, or throttle stiffness are usual problems that can compromise performance.
3. Vibration / Blade Mount Assembly
The vibration mount assembly and the blade deliver power from the engine to the screed to provide smooth finishing of concrete. Key components include the vibration shaft, isolators, bolts, and spacers. Common issues contractors face are mismatched isolators, worn vibration pads, or incorrect bolt placement, which can reduce efficiency and cause premature wear.
4. Frame & Mount Assembly
The mount and frame assembly provides the structural foundation of your Allen Magic Screed, supporting most of the significant components. Key features are brackets, clamps, and bolts. Having these in good working order maintains your screed stable and reduces issues from vibration.
Common points to check or replace:
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Loosened or damaged brackets that disrupt alignment
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Worn clamps that can cause movement between assemblies
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Missing or stripped bolts that render structures unstable
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Rust or corrosion that may weaken the frame in the long run
Maintenance Tips for Longer Life & Efficient Performance
Keeping your Allen Magic Screed running smoothly isn’t just about replacing parts, it’s about smart maintenance. Follow these key practices:
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Daily cleaning and inspection: Remove dust, concrete residue, and debris before and after each use to prevent buildup and corrosion.
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Check alignment and tension: Ensure vibration shafts, blades, and mounts are correctly aligned and tightened to avoid uneven wear or damage.
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Replace worn components early: Isolators, gaskets, and bolts show wear over time, replacing them before failure avoids costly breakdowns.
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Use OEM parts: Using OEM-grade concrete screed replacement parts helps maintain smooth performance and extend your equipment life.
Conclusion
Reading your Allen Magic Screed parts diagram has a direct effect on precision, productivity, and uptime on the job. With an understanding of which components are part of each assembly, you minimize mistakes, avoid downtime, and maintain your screed in top working condition.
Explore DanseUSA’s full Allen Magic Screed parts collection to find exact-fit replacement parts for every assembly, from engine and handle controls to vibration mounts and frame components.
If you are not sure which component is suitable for your model, please contact our experts who will lead you to the correct match based on your serial number or diagram reference.
FAQs
1. What are the most replaced Allen Magic Screed parts?
The parts that usually wear out first are in the engine assembly (carburetor, throttle cable, fuel lines), handle & control components (switches, levers, cables), vibration/blade mount assembly (isolators, vibration pads, bolts), and frame mounts (clamps and brackets). Keeping these on hand prevents downtime.
2. How do I interpret the Allen Magic Screed parts diagram?
Begin by labeling the assembly (frame, vibrator, handle, engine). Each piece of hardware is numbered using part numbers, so you can designate them to replacement pieces. This prevents you from ordering improper bolts, gaskets, or isolators and from incorrect assembly.
3. Are non-OEM parts compatible with my Magic Screed?
Although aftermarket parts can be made to function, OEM Allen Magic Screed parts ensure proper fit, function, and online support. Original parts minimize the threat of premature wear or misalignment.
4. How frequently should I maintain my Allen Magic Screed?
Inspect your screed on a regular basis prior to and following each use. Pay attention to cleaning, verifying alignment and vibration components, and replacing worn-out isolators or gaskets. Having a regular maintenance schedule increases equipment life and prevents expensive breakage.