Description

1. Safety Preparation: Before installation, shut off the elevator’s main power supply and lock the control panel using LOTO (Lockout/Tagout) procedures. Use a stable ladder to access the door machine assembly (typically located at the top of the elevator cabin or door frame). Wear gloves and safety glasses to avoid mechanical injury or debris contact.

2. Remove the Old Wheel: Locate the existing wire rope wheel on the door frame (secured by a single bolt or pin). Loosen the fixing bolt and carefully remove the wheel – note the orientation of the bearing and rope groove to ensure correct reinstallation. Disconnect the wire rope from the wheel groove (mark the rope position with tape to avoid misalignment). Inspect the old wheel for wear, bearing damage, or groove deformation.

3. Prepare the Mounting Area: Clean the wheel shaft and mounting bracket with a lint-free cloth to remove dust, oil, or debris. Check the shaft for rust, scratches, or wear (polish minor imperfections with fine sandpaper if necessary) to ensure smooth bearing rotation. Verify the wire rope is in good condition (replace if frayed, worn, or kinked) to prevent premature wheel damage.

4. Install the New Wheel: Align the Nanjing Zhuye Elevator Parts 66116200 wheel with the mounting shaft, ensuring the rope groove faces the correct direction (toward the wire rope path). Slide the wheel onto the shaft until it seats firmly against the bracket. Secure it with the original bolt (torque: 3-4 N·m) – do not over-tighten, as this can damage the bearing. Re-thread the wire rope into the wheel groove, following the marked position to maintain proper tension and alignment.

5. Test and Adjust: Manually open and close the elevator doors to verify smooth wheel rotation – there should be no binding, noise, or rope slippage. Check door synchronization: ensure both door leaves move evenly and fully close without gaps. Restore elevator power and run 10+ door cycles to confirm consistent operation, with no abnormal noise or vibration. Adjust rope tension if necessary (per Mitsubishi’s technical manual) to optimize wheel performance.

• Rope Compatibility: Ensure the wire rope diameter matches the wheel’s groove size (4-5mm for 66116200) – using an incompatible rope can cause slippage or groove damage.

• Lubrication Maintenance: Re-lubricate the wheel bearings every 6 months with high-temperature, waterproof grease (NLGI Grade 2) to reduce friction. Avoid over-lubrication, which can attract dust and debris.

• Avoid Overloading: Do not use the wheel to support excessive force (e.g., forcing jammed doors open) – this can bend the rim or damage the bearing.

• Keep Clean: Regularly remove dust, hair, or debris from the rope groove and bearing area to prevent binding and premature wear.

• High-Traffic Areas: Shopping malls, airports, or office buildings (12+ hours daily operation, 500+ door cycles per day) – replace every 3-4 years. Frequent rotation and rope friction accelerate bearing wear and groove deformation.

• Medium-Traffic Areas: Residential buildings, hotels, or small offices (8-10 hours daily, 200-500 door cycles per day) – replace every 4-6 years.

• Low-Traffic Areas: Villas, industrial facilities, or low-occupancy buildings (4-6 hours daily, door cycles per day) – replace every 6-8 years, with annual inspections.

• Abnormal Noise/Vibration: The wheel produces squeaking, grinding, or rattling sounds during operation – indicating worn bearings or misalignment.

• Rope Wear: The wire rope shows excessive fraying or uneven wear, which is often caused by a deformed or rough wheel groove.

• Binding or Stiffness: The door moves sluggishly or hesitates, or the wheel fails to rotate smoothly when turned manually – signs of bearing damage or debris buildup.

• Physical Damage: Cracked rim, bent hub, or loose bearing (detectable by wiggling the wheel) – which can cause rope slippage or door malfunction.

• Perfect Compatibility: Engineered to match Mitsubishi’s original dimensional and performance specifications, ensuring seamless integration with Mitsubishi door systems without modifications.

• Superior Durability: High-strength aluminum alloy rim and sealed 6200 bearings deliver long-term resistance to wear, corrosion, and vibration.

• Rigorous Quality Assurance: 100% pre-delivery testing, including rotational smoothness and dimensional accuracy checks, to meet global standards.

• Expert Technical Support: Our team of engineers provides professional guidance on installation, alignment, and maintenance via phone or email, ensuring a smooth user experience.

• Fast Delivery: We maintain a large inventory of 66116200 wheels to fulfill emergency replacement orders within 24-48 hours, minimizing elevator downtime.