Description
Otis elevator auxiliary door lock AZ14-1KD Brief introduction
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Product Name |
Otis elevator auxiliary door lock |
| Model Number |
AZ14-1KD |
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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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Otis Elevator Auxiliary Door Lock AZ14-1KD – Fitting, Tuning & Replacement Guide
Nanjing Zhuye Elevator Parts – Same-day dispatch, OEM pedigree, 24/7 tech support
Nanjing Zhuye Elevator Parts – Same-day dispatch, OEM pedigree, 24/7 tech support
The AZ14-1KD is the silver-rated auxiliary door lock that sits 200 mm above the main clutch on every Otis Gen2, SkyPlus and HydroLift door operator. Its job is simple—prove to the controller that the landing door is mechanically closed before the cab can move—yet a 0.2 mm drift in the roller clearance will throw a “314” fault and shut the building down at rush hour. Nanjing Zhuye Elevator Parts keeps thousands of genuine AZ14-1KD locks in Rotterdam and Nanjing so you can restore code-compliant interlocking the same day. Below is an 800-word field manual that covers correct usage, adjustment tricks and the replacement cycle that keeps your elevators running and inspectors smiling.
1. What the AZ14-1KD does
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12 A gold-plated contacts break the 115 Vac safety string when the door opens 5 mm
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Roller follower forces 12 N ±2 N on the cam, giving tactile feedback to passengers
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IP40 thermoplastic housing resists oil mist on MRL car tops
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Tri-lobe keyhole slots allow ±3 mm field adjustment without new holes
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UL-listed to CSA B44.1 and EN 81-20 for 1 million cycles
2. Tools to carry
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AZ14-1KD lock (Nanjing Zhuye part #OT-AZ14-1KD-AUX) with factory grease pack
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4 mm & 5 mm Allen keys, 10 mm open-end wrench
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Feeler gauges 0.05–1.0 mm
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Spring-scale (0–50 N)
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Multimeter with continuity beeper
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Otis portable cam gauge (green anodised jig)
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Lock-out / tag-out tags
3. Installation – 15 minutes if you measure twice
Safety: place the car on inspection, open the main disconnect and verify zero energy on the 115 Vac safety string.
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Mark the old roller position with Sharpie before removal—saves alignment time.
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Undo the two M6 cap-screws; drop the worn lock out of the bracket.
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Clean the cam face with IPA; polish any burrs with 600-grit paper.
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Insert the new AZ14-1KD; start screws but leave them finger-tight.
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Slide the Otis cam gauge against the door vane; the roller must kiss the gauge at 0.3 mm pre-load.
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Torque screws to 12 N·m; apply a drop of blue Loctite.
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Cycle the door five times on inspection; contacts should break at 4–6 mm door travel.
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Measure contact gap with feeler—target 0.5 mm minimum when fully open.
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Restore power, run a full-speed round trip and log the serial number in your CMMS.
4. Functional test – prove it to the inspector
a) With the door closed, continuity across 11-12 must read <0.1 Ω.
b) Manually crack the door 5 mm; contacts must open and drop the safety string.
c) Spring-scale pull on the roller: 12 N ±2 N at first break.
d) 500 V megger between contacts and housing >10 MΩ.
e) Photograph the gauge in place; attach PDF to the site file for AHJ audits.
b) Manually crack the door 5 mm; contacts must open and drop the safety string.
c) Spring-scale pull on the roller: 12 N ±2 N at first break.
d) 500 V megger between contacts and housing >10 MΩ.
e) Photograph the gauge in place; attach PDF to the site file for AHJ audits.
5. Preventive maintenance schedule
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Monthly – visual sweep for shiny roller flats or cracked housing ears.
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Quarterly – measure roller force; re-grease cam with Klüber synth 44-402.
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Annually – check contact erosion; file only if pit depth >0.2 mm, otherwise replace.
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Every two years – infrared scan the safety string; >20 °C rise indicates high resistance.
6. Replacement cycle – data, not guesswork
Otis baseline: 1 million cycles ≈ 6 years in a 300-start/day building. Nanjing Zhuye analytics refine this:
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Light duty (<150 starts/day, clean office): 8 years
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Standard duty (150–400 starts, residential): 6 years
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Heavy duty (>400 starts, hospital, mall): 4 years
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Coastal or chemical plant (airborne salts): 3 years – corrosion attacks the silver contacts.
Replace immediately if:
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Roller diameter <17 mm (new = 19 mm) – cam will skip
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Contact resistance >0.5 Ω under 1 A load test
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Housing cracks exposing live parts – code red tag
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Door fault “314” or “902” persists after roller adjustment
7. Eco-disposal & warranty
Return the old lock in the carton; Nanjing Zhuye recovers silver-plated contacts and issues a €4 recycling credit. Every AZ14-1KD ships with a 24-month replacement warranty, extendable to 60 months when you join our annual PM subscription.
8. Why buy from Nanjing Zhuye Elevator Parts
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4 200 units in stock, Rotterdam & Nanjing, ready for same-day courier
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Factory-sealed Otis packaging with hologram – no grey-market clones
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QR code on box links to 3-minute install video and inspection form
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24/7 technical hotline staffed by ex-Otis door specialists
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Bundle pricing: buy 10 locks and get a free cam gauge plus freight credit
9. Bottom line
A mis-adjusted auxiliary lock is the number-one cause of nuisance door faults. Keep a genuine AZ14-1KD on every truck, fit it in 15 minutes, and your elevators will pass inspection first time, every time. Order today from Nanjing Zhuye Elevator Parts—the fastest route from “fault code” to “fault-free.”
