Description
Mitsubishi elevator door triangle lock Universal Brief Introduction
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Product Name |
Mitsubishi elevator door triangle lock |
| Model Number | Universal |
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Quality
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Original.Brand New
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Payment
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T/T. Paypal. Western Union
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Delivery
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3-5 Working Days
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Packaging
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Packed by carton
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Universal Triangle Lock for Mitsubishi Elevator Door: Safe Access Core from Nanjing Zhuye Elevatorparts
The Universal Triangle Lock for Mitsubishi Elevator Door is a critical safety access component exclusively designed for Mitsubishi elevator systems (with universal compatibility across multiple Mitsubishi models). As the “safety key” for elevator door emergency access, it enables authorized maintenance personnel to manually open the elevator car door or landing door in emergency situations (such as elevator entrapment) while preventing unauthorized access to avoid safety hazards. The Universal Triangle Lock for Mitsubishi Elevator Door, exclusively supplied by Nanjing Zhuye Elevatorparts (a professional and trusted distributor of high-quality elevator components), fully complies with Mitsubishi’s original factory standards and international elevator safety norms (EN 81-20, GB 7588). Featuring high compatibility, anti-theft performance, and durable structure, this triangle lock provides reliable safety guarantees for Mitsubishi elevators in residential buildings, commercial complexes, office towers, hospitals, and other buildings worldwide.
Nanjing Zhuye Elevatorparts adheres to the core philosophy of “safety first, quality-oriented” and implements strict quality control over the Universal Triangle Lock for Mitsubishi Elevator Door. Each lock undergoes a multi-stage pre-delivery inspection, including compatibility testing with Mitsubishi models, anti-theft performance verification, corrosion resistance detection, and mechanical life trials. The product adopts high-quality stainless steel (304) for the lock core and triangle bolt, a precision brass keyhole mechanism, and a sealed anti-dust cover: the 304 stainless steel ensures excellent corrosion resistance and impact resistance, adapting to the humid environment of elevator shafts; the precision brass keyhole mechanism has a mechanical life of over 50,000 operations, avoiding key jamming; the sealed anti-dust cover effectively prevents dust and debris from entering the lock core to ensure smooth operation. Its universal design matches the interface specifications of most Mitsubishi elevator door lock positions, enabling seamless replacement without modifying the original door structure.
Step-by-Step Usage Guide for Universal Triangle Lock for Mitsubishi Elevator Door
To ensure the reliable operation of the Mitsubishi elevator door safety system and extend the service life of the universal triangle lock, follow the professional guidelines provided by Nanjing Zhuye Elevatorparts for installation, operation, and maintenance:
1. Professional Installation & Calibration
Installation must be performed by certified technicians familiar with Mitsubishi elevator systems. Prior to installation, confirm the compatibility of the universal triangle lock with the specific Mitsubishi elevator model (e.g., Mitsubishi MAXIEZ, MINIEZ series) using the detailed compatibility manual provided by Nanjing Zhuye Elevatorparts. The steps are as follows:
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Safety Preparation: Cut off the elevator’s main power supply and hang a “Maintenance in Progress—Do Not Power On” sign at the power switch. Fix the elevator car to a safe position using a safety clamp. Locate the triangle lock mounting position on the Mitsubishi elevator door (usually on the upper corner of the landing door or car door panel) and clean the area to remove dust, oil stains, and debris.
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Lock Installation: Remove the old triangle lock (if replacing) by unscrewing the fixed bolts. Align the universal triangle lock with the mounting hole and fix it firmly to the door panel using high-strength stainless steel bolts provided by Nanjing Zhuye Elevatorparts. Ensure the lock’s triangle bolt is correctly aligned with the door’s locking mechanism—when the lock is rotated, the bolt can smoothly drive the door lock to unlock. Tighten the bolts with a torque of 10–12 N·m to prevent loosening due to elevator vibration.
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Function Calibration: Insert the dedicated triangle key (matching the lock, provided by Nanjing Zhuye Elevatorparts) into the lock core and rotate it 90° clockwise (standard direction for Mitsubishi elevators) to check if the door lock is unlocked smoothly. Pull the door panel gently to confirm it can be opened manually; rotate the key counterclockwise to reset the lock and verify the door locks automatically. Ensure there is no stuck or loose phenomenon during the process.
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Post-Installation Testing: Restore the power supply and conduct comprehensive functional tests. Operate the elevator to run normally and confirm the triangle lock does not affect the automatic opening and closing of the elevator door; simulate an emergency scenario to test the lock’s unlocking speed (≤ 3 seconds) and reset reliability. If the lock fails to unlock, gets stuck, or affects the door’s normal operation, recheck the installation position and alignment immediately.
2. Correct Operation Norms (For Authorized Personnel Only)
The Universal Triangle Lock for Mitsubishi Elevator Door is only for authorized maintenance personnel to use in emergencies. Strictly follow the following operation norms to ensure safety:
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Pre-Operation Preparation: Before using the triangle lock, confirm the elevator is in a safe state (power cut off or in inspection mode). Check the surrounding environment to ensure there is no risk of falling objects or other hazards; place a warning sign at the elevator entrance to remind others of ongoing maintenance.
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Standard Unlocking Operation: Insert the dedicated triangle key into the lock core and rotate it in the specified direction (usually 90° clockwise for Mitsubishi elevators) until it is in place. After hearing the “click” sound of the door lock unlocking, gently pull the elevator door open (do not pull hard to avoid damaging the door mechanism). For landing doors, ensure the elevator car is aligned with the landing before unlocking to prevent passengers from falling into the shaft.
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Post-Operation Reset: After completing the emergency treatment or maintenance, close the elevator door tightly. Rotate the triangle key counterclockwise to reset the lock and ensure the door is locked securely. Pull the door panel gently to verify it cannot be opened manually. Remove the key and keep it in a dedicated safe place; take down the warning sign and restore the elevator to normal operation state.
3. Regular Maintenance Schedule
Systematic maintenance can effectively extend the service life of the Universal Triangle Lock for Mitsubishi Elevator Door. Follow Nanjing Zhuye Elevatorparts’ recommended maintenance plan:
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Monthly Maintenance: Use a dry, lint-free cloth to wipe the surface of the triangle lock and the keyhole to remove dust and oil stains. Insert the dedicated key and rotate it repeatedly 5–10 times to ensure smooth operation. Check the lock’s fixed bolts for looseness and retighten if necessary.
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Quarterly Maintenance: Apply a small amount of special lock lubricant (provided by Nanjing Zhuye Elevatorparts) to the keyhole and lock core to reduce friction. Check the lock’s triangle bolt for wear or deformation—measure the bolt’s thickness with a caliper (replace if wear exceeds 1mm). For locks installed in humid shaft environments, check the surface for rust and clean it with a stainless steel cleaner.
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Annual Professional Overhaul: Arrange a professional inspection with Nanjing Zhuye Elevatorparts’ certified technical team. Disassemble the triangle lock (by professional personnel) to inspect the internal lock core, springs, and other components for aging or damage. Replace worn components with genuine parts. Conduct compatibility tests again to ensure the lock matches the Mitsubishi elevator door mechanism perfectly.
Recommended Replacement Cycle for Universal Triangle Lock for Mitsubishi Elevator Door
As a core safety access component bearing long-term use and environmental erosion, the Universal Triangle Lock for Mitsubishi Elevator Door has a specified service life. Timely replacement is critical to avoiding lock failure (such as key jamming, inability to unlock, or loose locking), which may lead to delayed emergency rescue or unauthorized access, endangering passenger safety.
1. Standard Replacement Cycle
Under normal operating conditions (monthly use times ≤ 5, elevator shaft temperature -10–60℃, humidity 10%–95%), the recommended replacement cycle for the Universal Triangle Lock for Mitsubishi Elevator Door is 6–8 years. This cycle is determined based on Nanjing Zhuye Elevatorparts’ long-term field data, including material aging tests, lock core wear analysis, and actual operation feedback for Mitsubishi elevators.
2. Adjustments for Special Scenarios
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Harsh Environments: For Mitsubishi elevators in high-humidity coastal areas (salt spray corrosion), high-dust construction sites, or elevators with frequent emergency lock use (more than 10 times a month), the replacement cycle should be shortened to 4–6 years. Harsh conditions accelerate the corrosion of the stainless steel lock body, wear of the lock core, and failure of the internal springs, significantly reducing the lock’s reliability.
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Low-Frequency Use & Protected Scenarios: For Mitsubishi elevators in well-maintained buildings (e.g., high-end office towers, luxury residential buildings) with clean shaft environments and low emergency use frequency (less than 2 times a month), the replacement cycle can be extended to 8–10 years—only if Nanjing Zhuye’s professional inspection confirms that the lock core, bolt, and locking performance are all intact.
3. Immediate Replacement Conditions
Replace the universal triangle lock immediately if any of the following issues occur, regardless of service life:
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The lock core is stuck, and the dedicated key cannot be inserted or rotated; the lock fails to unlock or reset, and the fault cannot be eliminated through maintenance and lubrication.
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The triangle bolt is severely worn, bent, or broken, failing to drive the elevator door lock to unlock or lock securely.
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The lock body is severely rusted, corroded, or the fixed bolts are damaged, making it impossible to fix firmly to the door panel.
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The lock’s anti-theft performance is compromised (e.g., the keyhole is damaged, or unauthorized opening is possible); or the lock does not match the Mitsubishi elevator door mechanism after elevator maintenance/upgrade.
In conclusion, the Universal Triangle Lock for Mitsubishi Elevator Door supplied by Nanjing Zhuye Elevatorparts is a high-quality, Mitsubishi-compatible safety access component tailored for Mitsubishi elevator systems. By following the correct usage methods, maintenance schedules, and replacement cycles, elevator maintenance teams can effectively ensure the stable operation of the Mitsubishi elevator door safety system, improve emergency rescue efficiency, and minimize safety risks. Choosing Nanjing Zhuye Elevatorparts means you get not only authentic universal triangle locks for Mitsubishi elevators but also professional technical support, including model matching guidance, installation advice, and prompt after-sales service.
