Understanding the ApplianceMaster Pro Bend 700 Chopper Blade System
The ApplianceMaster Pro Bend 700 is a versatile kitchen machine, but like any high-performance appliance, its chopper blade will eventually dull or become damaged through regular use. Replacing the blade is a straightforward repair that restores chopping, mincing, and blending performance. This guide provides a step-by-step process for replacing the chopper blade on the Pro Bend 700, along with essential tips to avoid common mistakes. The replacement blade assembly (part number AM-PB700-CHPBLADE) typically costs between £22.99 and £29.99 from authorized dealers in the UK, while complete blade and shaft kits run approximately £34.99 to £44.99.
When Should You Replace the Chopper Blade?
Knowing when to replace the blade prevents poor processing results and protects the motor from strain. Key indicators include:
- Uneven chopping: Large chunks remain after a standard processing cycle.
- Excessive noise or vibration: The blade may be bent or chipped, causing imbalance.
- Visible damage: Nicks, rust spots, or bending on the blade edge.
- Stalling under load: The motor labours or stops when processing soft foods like onions or mushrooms.
- Lid leakage: Damaged blades can cause the chopper bowl to unseat from the lid seal.
If you experience any of these symptoms, it’s time to replace the blade rather than sharpen it—sharpening alters the blade geometry and can cause imbalance. For related lid sealing issues, see our guide on ApplianceMaster Pro Bend 700 Troubleshooting: Lid Not Locking – Causes and Fixes.
What Tools and Parts Do You Need for Replacement?
Before beginning, gather the following items:
- Replacement blade assembly: Use only genuine ApplianceMaster parts or certified aftermarket units that match the original shaft diameter (10 mm) and blade offset.
- Flathead screwdriver: For prying off the locking ring (if present on your model version).
- Needle-nose pliers: To grip the shaft if it spins during removal.
- Soft cloth or silicone mat: Protect the chopper bowl from scratches.
- White vinegar or descaler: If the shaft has mineral buildup.
- Food-grade lubricant (optional): Silicone grease for the shaft O-ring.
The part itself is the only mandatory expense. Labour time is about 15–25 minutes for first-time users.
Step-by-Step Blade Replacement Instructions
Step 1: Disassemble the Chopper Unit
Unplug the Pro Bend 700 motor base. Remove the chopper lid by pressing the release buttons on each side. Lift the chopper bowl off the motor base. Inside the bowl, you will see the blade assembly seated on the central shaft. Remove any food debris from the bowl—rinsing with warm water helps.
Step 2: Remove the Old Blade Assembly
Turn the bowl upside down on a soft cloth. Locate the retaining ring (a metal or plastic ring that holds the blade onto the shaft). On newer Pro Bend 700 models (serial numbers after 2021), the ring is a C-clip that can be pried off with a flathead screwdriver. On older models, there is a spring-loaded locking pin that requires needle-nose pliers to depress and slide out.
Caution: The blade is extremely sharp. Wear cut-resistant gloves or handle the assembly by its plastic hub only. If the blade spins freely while removing the ring, use needle-nose pliers to grip the shaft just below the blade hub.
Step 3: Clean the Shaft and Bowl Base
Inspect the shaft for mineral deposits, rust, or food residues. Wipe it clean with a cloth dipped in white vinegar. Rinse and dry thoroughly. A clean shaft ensures the new blade seats properly and won’t wobble during operation.
Step 4: Install the New Blade Assembly
Align the new blade’s central hole with the shaft. The blade should slide down until it contacts the bowl’s bottom bearing surface. The blade hub should sit flush against the shaft shoulder. If the blade has a specific orientation (some models have a directional arrow), ensure the arrow points clockwise (toward the lid lock position).
Step 5: Secure the Blade with the Retaining Ring
Reattach the retaining ring or C-clip using needle-nose pliers. Press it firmly into the groove on the shaft. Verify it is fully seated by gently tugging upward on the blade hub—it should not move. If the ring is spring-loaded, compress the pins and insert them into the shaft holes until they click.
Step 6: Reassemble and Test
Place the bowl back onto the motor base. Attach the lid and lock it by turning clockwise until you hear a click. Plug in the machine and run a test cycle with 500 ml of water and a few ice cubes. Listen for unusual noise or vibration. If the blade runs smoothly, the replacement is successful. If you encounter issues with the machine not powering on, refer to ApplianceMaster Pro Bend 700 Troubleshooting: Not Turning On – Causes and Fixes.
Blade Replacement Severity and Cost Comparison
The following table outlines common blade issues and their relative severity to help you decide whether replacement is urgent.
| Issue | Severity | Typical Cost (GBP) | Urgency |
|---|---|---|---|
| Dull blade (uneven chopping) | Low | £22.99 (blade only) | Low – can wait a few uses |
| Chipped blade edge | Medium | £22.99–£29.99 | Medium – replace within 2 weeks |
| Bent blade shaft | High | £34.99 (shaft+blade set) | Immediate – risk to motor |
| Rust on blade or shaft | High | £34.99–£44.99 | Immediate – contaminates food |
| Broken retaining ring | Medium | £8.99 (ring only) | High – blade may detach |
What Owners Say About the Chopper Blade Replacement
User forums and ApplianceMaster support tickets reveal consistent feedback. Many owners find the replacement process simpler than expected, especially after watching the official video tutorial. Sarah, a home chef from Manchester, shared: “I was nervous about removing the old blade, but the C-clip came off easily with a flathead. The new blade made a huge difference in my salsa preparation—no more chunks.” Another user, David from Bristol, noted: “After replacing the blade, the machine stopped overheating during long chopping sessions. It seems the old blade was causing excessive strain. For related heat issues, see ApplianceMaster Pro Bend 700 Troubleshooting: Overheating – Causes and Fixes.”
Negative feedback typically centres on two points: first, owners who purchased third-party blades found they didn’t fit precisely and caused vibration. We strongly recommend using Genuine ApplianceMaster or certified OEM replacements. Second, a few users reported that the retaining ring was difficult to reinstall on older models due to corrosion—cleaning the shaft with a wire brush solved this.
Frequently Asked Questions
How often should I replace the chopper blade on the Pro Bend 700?
With normal home use (1–3 times per week), replace the blade every 6–12 months. Heavy commercial use may require replacement every 3–4 months. Signs of dullness or damage are better indicators than a fixed schedule.
Can I sharpen the original blade instead of replacing it?
No—the blade is designed for single-use replacement. Sharpening alters the factory edge geometry and leads to imbalance, which can damage the motor and cause excessive vibration. Always replace with a new blade assembly.
Will using a third-party blade void my warranty?
Yes, if the third-party blade causes damage to the chopper unit or motor. Genuine ApplianceMaster parts are recommended to maintain warranty coverage. Check your warranty terms; some third-party blades are approved if they meet OEM specifications.
Why does the blade keep loosening after replacement?
This usually indicates an improperly seated retaining ring or a worn shaft groove. Inspect the ring for deformation and ensure it snaps fully into the groove. If the groove is worn, you may need a new shaft assembly. Also, verify the bowl is locked correctly—see ApplianceMaster Pro Bend 700 Troubleshooting: Lid Not Locking – Causes and Fixes.
Does the blade replacement affect the performance of other attachments?
No—the chopper blade is exclusive to the chopper bowl assembly. Other attachments like the ice cream maker or slow cooker bowl operate independently. However, if you experience motor performance changes, check the chopper bowl bearing condition. For attachment specifics, see ApplianceMaster Pro Bend 700 Ice Cream Attachment Review: Performance and Recipes and ApplianceMaster Pro Bend 700 Slow Cooker Attachment Review: Performance and Recipes.
Where can I purchase the official replacement blade in the UK?
Genuine ApplianceMaster blades are available from the official website, authorized UK dealers (e.g., John Lewis, Lakeland), and Amazon UK (sold by ApplianceMaster Direct). Prices range from £22.99 to £44.99 depending on the package. Avoid listings with no reviews or prices below £15, as these may be counterfeit.
