{"id":6448,"date":"2025-06-03T09:58:47","date_gmt":"2025-06-03T09:58:47","guid":{"rendered":"https:\/\/potensilift.com\/?p=6448"},"modified":"2025-06-04T09:15:59","modified_gmt":"2025-06-04T09:15:59","slug":"how-to-inspect-the-door-lock","status":"publish","type":"post","link":"https:\/\/potensilift.com\/en\/how-to-inspect-the-door-lock\/","title":{"rendered":"How to inspect the door lock?"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"6448\" class=\"elementor elementor-6448\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-33494a7 e-flex e-con-boxed e-con e-parent\" data-id=\"33494a7\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;ekit_has_onepagescroll_dot&quot;:&quot;yes&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-f903cc6 elementor-widget elementor-widget-text-editor\" data-id=\"f903cc6\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Elevator door locks are one of the most critical safety components in vertical transport systems. While they often go unnoticed during daily operations, any malfunction in the door lock mechanism can lead to serious safety hazards. In this article, we\u2019ll explain what elevator door locks are, why precise engagement is necessary, and how to perform proper inspection using proven methods.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0eb74b4 elementor-widget elementor-widget-heading\" data-id=\"0eb74b4\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">What Is an Elevator Door Lock?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2d77126 elementor-widget elementor-widget-text-editor\" data-id=\"2d77126\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>An <span style=\"color: #3366ff;\"><a style=\"color: #3366ff;\" href=\"https:\/\/potensilift.com\/product-category\/elevator-parts\/elevator-door-system\/\"><strong>elevator door lock<\/strong><\/a><\/span> is a mechanical and electrical safety device that ensures the elevator cannot move unless all doors are securely closed and locked. Its main purpose is to prevent the elevator from running when any door is open or not properly engaged.<\/p><p>These locks typically include:<\/p><ul><li>A mechanical locking component (such as a latch, hook, or bolt)<\/li><li>A spring or permanent magnet to ensure the lock stays in place<\/li><li>Electrical safety contacts that confirm the lock is engaged before the elevator moves<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7141852 elementor-widget elementor-widget-image\" data-id=\"7141852\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/potensilift.com\/wp-content\/uploads\/2025\/06\/Elevator-Door-Lock.webp\" class=\"attachment-large size-large wp-image-6457\" alt=\"elevator door lock\" srcset=\"https:\/\/potensilift.com\/wp-content\/uploads\/2025\/06\/Elevator-Door-Lock.webp 800w, https:\/\/potensilift.com\/wp-content\/uploads\/2025\/06\/Elevator-Door-Lock-300x300.webp 300w, https:\/\/potensilift.com\/wp-content\/uploads\/2025\/06\/Elevator-Door-Lock-150x150.webp 150w, https:\/\/potensilift.com\/wp-content\/uploads\/2025\/06\/Elevator-Door-Lock-768x768.webp 768w, https:\/\/potensilift.com\/wp-content\/uploads\/2025\/06\/Elevator-Door-Lock-600x600.webp 600w, https:\/\/potensilift.com\/wp-content\/uploads\/2025\/06\/Elevator-Door-Lock-100x100.webp 100w, https:\/\/potensilift.com\/wp-content\/uploads\/2025\/06\/Elevator-Door-Lock-50x50.webp 50w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9291c23 elementor-widget elementor-widget-heading\" data-id=\"9291c23\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">What Are the Requirements for Door Lock Safety?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7df5cd0 elementor-widget elementor-widget-text-editor\" data-id=\"7df5cd0\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>According to elevator safety codes such as GB7588 and TSG T7001, door locks must meet a few key criteria:<\/p><ul><li><strong>Fail-safe operation<\/strong>: The door lock must engage automatically when power is lost, ensuring the elevator cannot move.<\/li><li><strong>Friction-type braking<\/strong>: The locking mechanism must use a friction-based method, which can be supplemented with other systems.<\/li><li><strong>Independent dual components<\/strong>: The mechanical structure should include two independent locking elements that can be tested separately from outside the shaft.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-57a1366 elementor-widget elementor-widget-heading\" data-id=\"57a1366\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Common Types of Elevator Door Locks<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0402488 elementor-widget elementor-widget-text-editor\" data-id=\"0402488\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Different elevators utilize various types of <span style=\"color: #3366ff;\"><a style=\"color: #3366ff;\" href=\"https:\/\/potensilift.com\/product-category\/elevator-parts\/elevator-door-system\/\">locks<\/a><\/span>,\u00a0depending on the system&#8217;s design and load requirements. The most common include:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-dbe4212 elementor-widget elementor-widget-heading\" data-id=\"dbe4212\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">1. Block-Type (External and Internal)<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-dbdcb4a elementor-widget elementor-widget-text-editor\" data-id=\"dbdcb4a\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul><li><strong>External block locks <\/strong>are the most common. They use spring-loaded arms to push the brake pads against the traction sheave.<\/li><li><strong>Internal block locks <\/strong>have similar mechanisms but are placed within the traction sheave. They are less common due to their complexity.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3e03e7c elementor-widget elementor-widget-heading\" data-id=\"3e03e7c\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">2. Disc-Type<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f08c7cb elementor-widget elementor-widget-text-editor\" data-id=\"f08c7cb\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul><li><strong>Clamp disc locks <\/strong>use caliper-style arms to hold a disc. They offer strong holding power and are ideal for high-performance elevators.<\/li><li><strong>Single-sided disc locks <\/strong>are compact and easier to install, but may offer slightly less stopping force.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-222f9bc elementor-widget elementor-widget-heading\" data-id=\"222f9bc\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">3. Drum-Type<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c0f2366 elementor-widget elementor-widget-text-editor\" data-id=\"c0f2366\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>These are basic in structure and cost-effective but don\u2019t meet newer dual-component requirements, making them less suitable under modern regulations.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-50201d2 elementor-widget elementor-widget-image\" data-id=\"50201d2\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/potensilift.com\/wp-content\/uploads\/2025\/06\/Elevator-Door-Lock-1.webp\" class=\"attachment-large size-large wp-image-6458\" alt=\"elevator door lock\" srcset=\"https:\/\/potensilift.com\/wp-content\/uploads\/2025\/06\/Elevator-Door-Lock-1.webp 800w, https:\/\/potensilift.com\/wp-content\/uploads\/2025\/06\/Elevator-Door-Lock-1-300x300.webp 300w, https:\/\/potensilift.com\/wp-content\/uploads\/2025\/06\/Elevator-Door-Lock-1-150x150.webp 150w, https:\/\/potensilift.com\/wp-content\/uploads\/2025\/06\/Elevator-Door-Lock-1-768x768.webp 768w, https:\/\/potensilift.com\/wp-content\/uploads\/2025\/06\/Elevator-Door-Lock-1-600x600.webp 600w, https:\/\/potensilift.com\/wp-content\/uploads\/2025\/06\/Elevator-Door-Lock-1-100x100.webp 100w, https:\/\/potensilift.com\/wp-content\/uploads\/2025\/06\/Elevator-Door-Lock-1-50x50.webp 50w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ed62d72 elementor-widget elementor-widget-heading\" data-id=\"ed62d72\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><a href=\"https:\/\/potensilift.com\/product-category\/elevator-parts\/elevator-door-system\/\">How to Inspect Elevator Door Locks\uff1f<\/a><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6bf274a elementor-widget elementor-widget-heading\" data-id=\"6bf274a\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Visual and Functional Checks<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2a4f0fd elementor-widget elementor-widget-text-editor\" data-id=\"2a4f0fd\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Before using any tools, start with a simple visual inspection:<\/p><ul><li>Is the locking hook intact?<\/li><li>Are the contact rollers turning freely?<\/li><li>Are there signs of corrosion or physical damage?<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b80e7bc elementor-widget elementor-widget-text-editor\" data-id=\"b80e7bc\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Now let\u2019s get into more detailed testing.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f43232b elementor-widget elementor-widget-heading\" data-id=\"f43232b\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">4 Methods to Check Door Lock Engagement<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e454682 elementor-widget elementor-widget-text-editor\" data-id=\"e454682\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>To ensure the <span style=\"color: #3366ff;\"><a style=\"color: #3366ff;\" href=\"https:\/\/potensilift.com\/product-category\/elevator-parts\/elevator-door-system\/\">lock<\/a><\/span> is engaging properly, you must verify the <strong>engagement length<\/strong>\u2014how much the latch overlaps with the keeper. It should be at least 7mm. Here\u2019s how to check it:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a73f4b5 elementor-widget elementor-widget-image\" data-id=\"a73f4b5\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/potensilift.com\/wp-content\/uploads\/2025\/06\/lock-door.webp\" class=\"attachment-large size-large wp-image-6459\" alt=\"lock door\" srcset=\"https:\/\/potensilift.com\/wp-content\/uploads\/2025\/06\/lock-door.webp 800w, https:\/\/potensilift.com\/wp-content\/uploads\/2025\/06\/lock-door-300x300.webp 300w, https:\/\/potensilift.com\/wp-content\/uploads\/2025\/06\/lock-door-150x150.webp 150w, https:\/\/potensilift.com\/wp-content\/uploads\/2025\/06\/lock-door-768x768.webp 768w, https:\/\/potensilift.com\/wp-content\/uploads\/2025\/06\/lock-door-600x600.webp 600w, https:\/\/potensilift.com\/wp-content\/uploads\/2025\/06\/lock-door-100x100.webp 100w, https:\/\/potensilift.com\/wp-content\/uploads\/2025\/06\/lock-door-50x50.webp 50w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a3ac464 elementor-widget elementor-widget-heading\" data-id=\"a3ac464\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">1. Spark Method<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b092ceb elementor-widget elementor-widget-text-editor\" data-id=\"b092ceb\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>As the lock closes slowly, look for a spark or arc at the contact point (if visible). This indicates the exact moment the electrical contact closes. Freeze at this point and measure the overlap.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-640b88c elementor-widget elementor-widget-heading\" data-id=\"640b88c\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">2. Sound Method<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-dd52ae6 elementor-widget elementor-widget-text-editor\" data-id=\"dd52ae6\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Listen for a click from the control panel when the contact closes. This sound marks the electrical activation point\u2014again, pause and measure the mechanical overlap.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5d51b11 elementor-widget elementor-widget-heading\" data-id=\"5d51b11\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">3. Trial Movement Method<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fd7097e elementor-widget elementor-widget-text-editor\" data-id=\"fd7097e\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>With the elevator on inspection mode, press the down button as the door slowly closes. When the car starts to move, that\u2019s the point of contact engagement. This works well for locks far from the control panel.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a251724 elementor-widget elementor-widget-heading\" data-id=\"a251724\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">4. Voltage Method<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-dcdf1b0 elementor-widget elementor-widget-text-editor\" data-id=\"dcdf1b0\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Use a multimeter on the lock contact terminals. Watch the reading as you close the door slowly\u2014when the voltage drops to zero, you\u2019ve reached the contact point.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bb8472e elementor-widget elementor-widget-heading\" data-id=\"bb8472e\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Why Engagement Width Matters?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-522f8d2 elementor-widget elementor-widget-text-editor\" data-id=\"522f8d2\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>In addition to engagement depth, <strong>engagement width<\/strong>\u00a0must also be sufficient. This ensures that side-to-side motion or misalignment doesn&#8217;t compromise the lock. A shallow or misaligned lock could open under vibration or force.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d9b15dc elementor-widget elementor-widget-image\" data-id=\"d9b15dc\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/potensilift.com\/wp-content\/uploads\/2025\/06\/door-lock.webp\" class=\"attachment-large size-large wp-image-6460\" alt=\"door lock\" srcset=\"https:\/\/potensilift.com\/wp-content\/uploads\/2025\/06\/door-lock.webp 800w, https:\/\/potensilift.com\/wp-content\/uploads\/2025\/06\/door-lock-300x300.webp 300w, https:\/\/potensilift.com\/wp-content\/uploads\/2025\/06\/door-lock-150x150.webp 150w, https:\/\/potensilift.com\/wp-content\/uploads\/2025\/06\/door-lock-768x768.webp 768w, https:\/\/potensilift.com\/wp-content\/uploads\/2025\/06\/door-lock-600x600.webp 600w, https:\/\/potensilift.com\/wp-content\/uploads\/2025\/06\/door-lock-100x100.webp 100w, https:\/\/potensilift.com\/wp-content\/uploads\/2025\/06\/door-lock-50x50.webp 50w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e8a0a6c elementor-widget elementor-widget-heading\" data-id=\"e8a0a6c\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Electrical Safety Check:<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9912c78 elementor-widget elementor-widget-text-editor\" data-id=\"9912c78\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>The lock must <strong>break the safety circuit<\/strong>\u00a0if it&#8217;s tampered with or not fully closed. This is critical for preventing \u201copen-door running,\u201d where the elevator moves with a door unlocked.<\/p><p>To test this:<\/p><ul><li>Manually open the lock without shutting the contact<\/li><li>The elevator should stop immediately or fail to start<\/li><li>If it runs, that\u2019s a serious safety violation\u2014most likely due to a shorted or bypassed safety circuit<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-826522b elementor-widget elementor-widget-text-editor\" data-id=\"826522b\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Bypassing a <span style=\"color: #3366ff;\"><a style=\"color: #3366ff;\" href=\"https:\/\/potensilift.com\/product-category\/elevator-parts\/elevator-door-system\/\">door lock<\/a><\/span> safety circuit is <strong>strictly forbidden<\/strong>. This careless practice has caused serious injuries and even fatalities.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2f99916 elementor-widget elementor-widget-heading\" data-id=\"2f99916\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Preventing Mistakes with Bypass Devices<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0f5779f elementor-widget elementor-widget-text-editor\" data-id=\"0f5779f\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Some elevators use temporary bypass devices for troubleshooting. These should only allow limited movement in inspection or emergency modes and must provide <strong>audible and visible warnings<\/strong>\u00a0to prevent human error. If technicians forget to remove a bypass after testing, it can lead to disaster.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1978b57 elementor-widget elementor-widget-heading\" data-id=\"1978b57\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Conclusion<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ec32d68 elementor-widget elementor-widget-text-editor\" data-id=\"ec32d68\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"color: #3366ff;\"><a style=\"color: #3366ff;\" href=\"https:\/\/potensilift.com\/product-category\/elevator-parts\/elevator-door-system\/\">Elevator door locks<\/a><\/span> are more than mechanical parts\u2014they\u2019re lifesaving devices that demand precision, vigilance, and professionalism. Proper engagement, reliable electrical feedback, and regular inspection keep your elevator\u2014and its passengers\u2014safe.<\/p><p>As a professional supplier of elevator components, <span style=\"color: #3366ff;\"><a style=\"color: #3366ff;\" href=\"https:\/\/potensilift.com\/about-us\/\">POTENSI<\/a><\/span> provides a wide range of high-quality <span style=\"color: #3366ff;\"><a style=\"color: #3366ff;\" href=\"https:\/\/potensilift.com\/products\/\">elevator parts<\/a><\/span>, including door locks, sensors, and other critical safety devices. We focus on offering reliable products from trusted manufacturers that meet international safety standards.<\/p><p><strong>Please reach out to us today to <span style=\"color: #3366ff;\"><a style=\"color: #3366ff;\" href=\"https:\/\/potensilift.com\/contact\/\">learn more<\/a><\/span> about our product offerings and find the right parts for your next project.<\/strong>\u00a0With POTENSI, you can count on quality and reliability.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>This article explains how to inspect elevator door locks, including mechanical engagement, safety circuit testing, and common issues to watch for.<\/p>\n","protected":false},"author":1,"featured_media":6451,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"none","_seopress_titles_title":"How to Inspect Elevator Door Locks for Safety?","_seopress_titles_desc":"Learn how to check elevator door locks for wear, alignment, and electrical safety to prevent failures. Essential info for safer elevator operation.","_seopress_robots_index":"","footnotes":""},"categories":[175],"tags":[],"class_list":["post-6448","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry-news"],"_links":{"self":[{"href":"https:\/\/potensilift.com\/en\/wp-json\/wp\/v2\/posts\/6448"}],"collection":[{"href":"https:\/\/potensilift.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/potensilift.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/potensilift.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/potensilift.com\/en\/wp-json\/wp\/v2\/comments?post=6448"}],"version-history":[{"count":17,"href":"https:\/\/potensilift.com\/en\/wp-json\/wp\/v2\/posts\/6448\/revisions"}],"predecessor-version":[{"id":6477,"href":"https:\/\/potensilift.com\/en\/wp-json\/wp\/v2\/posts\/6448\/revisions\/6477"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/potensilift.com\/en\/wp-json\/wp\/v2\/media\/6451"}],"wp:attachment":[{"href":"https:\/\/potensilift.com\/en\/wp-json\/wp\/v2\/media?parent=6448"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/potensilift.com\/en\/wp-json\/wp\/v2\/categories?post=6448"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/potensilift.com\/en\/wp-json\/wp\/v2\/tags?post=6448"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}