Daily Inspection and Semi-Monthly Maintenance System
Elevator daily inspections shall be carried out by certified personnel of the hotel engineering department, and the maintenance contractor shall perform professional maintenance on a semi-monthly cycle. Daily inspection contents: (1) Check daily whether the emergency alarm intercom in the car operates normally, whether the lighting and fan operate normally, and whether there is abnormal noise or vibration during operation; (2) Check whether the landing buttons and arrival indicator lights operate normally; (3) Observe whether the elevator door opening and closing actions are smooth. Semi-monthly maintenance (performed by the maintenance contractor) shall complete 28 inspection items in accordance with Appendix A of TSG T5002-2017: (1) Machine room: check the temperature rise and oil level of the traction machine, the brake clearance and action sensitivity, whether the speed governor operates normally, and whether each electrical component in the control cabinet is abnormal; (2) Hoistway: check guide rail lubrication, guide shoe liner wear, the action of each limit switch, and hoistway lighting; (3) Car: check the tension of the door operator belt, the function of the safety touch panel/light curtain, the door opening/closing buttons and arrival indicators; (4) Pit: check the integrity of the buffers, the position of the tension pulley, and the emergency stop switch. After maintenance is completed, fill in the semi-monthly maintenance record sheet (in triplicate: one for the user unit, one for the maintenance contractor, and one for the file).
Quarterly and Annual Maintenance Priorities
Quarterly and annual maintenance are in-depth maintenance of elevators, involving the inspection and adjustment of key safety components. Quarterly maintenance (items added on the basis of semi-monthly maintenance): (1) Oil change or grease replenishment for the reduction gearbox (adjusted according to usage frequency); (2) Cleaning of each sliding guide shoe and inspection of guide shoe liner wear (replacement required if wear exceeds 1/3); (3) Safety gear linkage movement test (manually pull the linkage rod to confirm no jamming); (4) Inspection of the spring and nut locking force of each rope-end combination; (5) Action inspection of each mechanical lock device in the hoistway. Annual maintenance (items added on the basis of quarterly maintenance): (1) Speed governor tripping speed calibration (must be carried out by a qualified inspection agency, with a calibration report issued); (2) Safety gear linkage test (after the speed governor trips, the safety gear shall stop the car within the specified distance); (3) 125% rated load test (load the car to 125% rated load, confirm that the overload protection is effective and the elevator cannot start); (4) Brake braking torque test; (5) Buffer compression stroke and reset test; (6) Wire rope diameter wear measurement (replacement required if wear exceeds 10%). After annual maintenance, an annual inspection must be declared to the local market supervision bureau.
Emergency Repair and Entrapment Rescue Plan
Emergency handling of elevator entrapment accidents is an important part of hotel safety management. Hotels shall formulate an elevator entrapment rescue plan and conduct drills once every six months. Key points of the plan: (1) Alarm response: after the monitoring center receives an elevator fault alarm (five-party intercom, video surveillance or hall call button), it shall immediately confirm the number and floor of the elevator with entrapped passengers and activate the emergency response; (2) Initial handling: reassure the entrapped passengers through the five-party intercom (inform them that professionals have been notified and that they should not pry the doors), and at the same time notify the certified personnel of the engineering department (target arrival on site within 15 minutes); (3) Rescue operation: after the certified maintenance personnel arrive, first confirm the elevator position and status (whether it is in the leveling zone), carry out brake release and manual handwheel operation (manually release the brake and turn the flywheel) according to the standard operating procedure to move the elevator to the nearest floor, then open the doors and release the passengers; (4) Fault elimination: identify the cause of the fault (common faults: poor door lock contact, open safety circuit, inverter overload, encoder signal loss, etc.), repair quickly or activate a backup plan; (5) Post-incident handling: fill in the accident handling report, analyze the cause, and formulate preventive measures. The entire rescue process shall be completed within 30 minutes.
Maintenance Quality Management and KPI Assessment
Elevator maintenance quality is directly related to operational safety and service life. Hotels shall establish a maintenance quality assessment system, and KPI indicators shall include: (1) Failure rate: monthly failures not exceeding 0.15 times/unit (including entrapment failures); (2) Entrapment rescue response time: from alarm receipt to arrival on site not exceeding 15 minutes, and passenger release not exceeding 30 minutes; (3) Maintenance plan completion rate: 100% (semi-monthly/monthly/quarterly/annual maintenance executed as planned); (4) Problem rectification rate: 100% of problems found in inspections rectified on schedule; (5) Inspection pass rate: 100% one-time pass rate for annual supervision inspection; (6) Customer complaint rate: monthly elevator-related complaints not exceeding 0.2 times/unit. Assessment methods: monthly inspection (joint inspection by hotel engineering department), quarterly assessment (random inspection by group quality department), annual evaluation (maintenance contract renewal review). Assessment results are linked to maintenance fees (100% payment when excellent standards are met; proportional deduction in case of major failures).