Clock Tower Equipment, due to human factors such as materials, craftsmanship, and environment during use, inevitably experiences various malfunctions. Maintenance of the grand clock is an effective measure to eliminate potential faults, extend the service life of the building's clock tower equipment, and keep the clock tower in optimal condition. It ensures the mechanical performance and proper operation of the equipment. This work includes:

• 1. Inspect the tower clock movement and control section. Continuous switching of the circuit is damaging to both the circuit and the movement, so the most prone to damage in a tower clock is the movement itself. Each start and stop of the tower clock causes the needles inside the clock to tremble, thereby reducing the lifespan of the movement and necessitating repairs.

• 2. Calibration of Timekeeping. Modern school clocks add a feedback anti-freezing switch to the movement, introducing another closed-loop control. This ensures that the movement provides a feedback signal to the master clock control system with each operation, allowing the control system to automatically detect the movement's status and make timely automatic adjustments to ensure stable timekeeping. If the two needles are operating, the master and slave clock system uses closed-loop control to maintain asynchronous operation between the slave and master clocks. It is indicated that if the tower clock's timekeeping is inaccurate, the manufacturer should be contacted for tower clock repair.

• 3. Inspect Lighting: Building tower clocks are typically outdoor, so lighting is essential. The on and off times are automatically controlled by the system. Reduce the frequency of tower clock maintenance and building tower clock repairs.

• Belfries, building belfries, rooftop grand clocks, and clock tower grand clocks maintenance are primarily divided into three sections:

One, the appearance display section includes the face, hands, markings, and the face's glow-in-the-dark illumination. Inspect for rust, check if the face and marking hands are loose, and ensure there are no safety hazards. Since the large clock is installed at a height, repairing the appearance is extremely inconvenient, making it crucial to choose a reputable manufacturer and installation personnel.

Two, the electrical part of the grand clock control, which is the brain of the grand clock, has a high technical content and requires a high level of technical expertise from maintenance and service personnel. Generally, certification is required for employment.

Three, the movement and mechanical transmission part are the executing mechanism of the grand clock. The movements produced by Yantai Kexin Watch Co., Ltd. are made of beryllium bronze for bearing bushings and 45# steel that has undergone rigorous mechanical heat treatment, significantly enhancing the wear resistance of the movement. The fully enclosed design ensures maintenance-free and保养-free operation, guaranteeing a lifespan of 50 years.

• In summary, large-scale clock repair requires highly skilled technicians. They must possess both electrical and mechanical expertise, be brave yet meticulous, and capable of conducting高空work independently. Our company can repair tower clocks from various manufacturers across the country, offering free on-site inspections and proposing repair plans. After obtaining the customer's approval, we will sign a maintenance warranty contract.

Yantai Kexin Watch Co., Ltd.: Technology-driven, trust-based, a Shandong-based technological SME. Products are on-time, durable, and energy-efficient. Located in the Economic and Technological Development Zone of Yantai City, the company specializes in the research, design, manufacturing, installation, and maintenance of large special clocks. Main business includes providing large clocks for squares, schools, churches, stations, and more across 32 provinces and municipalities. Years of technical accumulation ensure product quality, while local offices and service outlets provide peace of mind for customers in purchasing and using our products.

  1 Logistics: SF Express, Deppon

2. Payment Methods

Customized Maintenance Contract, payment to be made upon completion and satisfactory acceptance of the maintenance work.

3. Return and Exchange Policy

Customized products are non-refundable and non-exchangeable, excluding the internal unit.

Documentary System

Supplier to issue legally valid general or special invoices, transfer or wire payment, cash payments are not accepted.

5. After-sales Service:

1) Our tower clock equipment comes with a three-year warranty, effective from the date of final project acceptance.

2) During the warranty period, we are responsible for free repairs and offer a service response time as low as 2-12 hours after receiving the customer's repair request, with a site arrival within 12-24 hours.

3). Continued repair services after the warranty period, with only the cost of parts charged.

4) Lifetime free technical consulting services and software upgrade support.

5) Due to our high degree of self-manufacturing for the tower clock equipment, we can still ensure that the provided equipment parts meet the standards throughout the product upgrade and replacement process.

6) Our company conducts a follow-up visit to the provided equipment every six months.

7) After completion of the repair, introduce the cause of the incident and the repair process to the client. Fill out the repair record form and have the client sign for approval. Observe the client's site for 48 hours, and upon normal operation, leave the site.

8) Offer free training for two system administrators of the grand clock system for the user, along with technical consultation.

9) Seamless Service. The company has offices and service stations in all provinces across the country, offering a service response time as low as 1 hour, ensuring any issues are resolved within 24 hours!

6. Key Functions of Kexin Tower Clock:

1) Time Indication Feature: Features hour, minute, and second hands (or two hands) for time indication.

2) Smart Drive Features: Drive platter quantity 1-32, platter diameter 1-10 meters.

3) Automatic Calibration Function: The mother and daughter clock system utilizes closed-loop control, with the movement providing feedback on timekeeping, enabling automatic calibration.

4) Automatic Time-Tracking Feature: In the event of a power outage, the memory unit automatically retains the data of the sub-clocks, and upon power restoration within 6 months, it automatically adjusts to the standard time.

5) Smart Lighting Function: Automatic on/off for lighting equipment.

6) Power Failure Compensation: The intelligent core continues to operate normally within 12-24 hours after a power outage, ensuring uninterrupted timekeeping. Automatically adjusts to standard time within 6 months after power is restored.

7) Safety Protection Features: The entire system operates on a 12V DC safe voltage supply, providing effective safety protection to users.

8) Low Maintenance: The entire tower clock system is designed for longevity, requiring no manual maintenance.

9) GPS Satellite Synchronization Function: Real-time reception of time signals from global positioning system satellites, outputting full-time standard synchronized time codes (including date and time), and automatically synchronizing master clock time to eliminate cumulative errors and ensure precise timing.

10) Synchronization Time Feature: The master clock system can provide a standard synchronization time signal to other systems.

11) Microcomputer Monitoring Function: The computer combines an Intel 64-bit dual-core processor with self-developed monitoring hardware and software systems, enabling comprehensive remote control of the master-slave clock system and the ability to monitor and adjust timekeeping and chime functions.

12) Smart Alarm Feature: Automatically plays high-fidelity CD quality music for time announcements, utilizing the standard British Big Ben chime. Customizable alarm content is available. The alarm amplifier can be automatically scheduled to turn on and off.

13) Multimedia Announcement Function: Utilizing our self-developed multimedia announcement software, featuring powerful functionality and flexible operation. The music library is rich in content, allowing users to change announcement settings at any time, to play any music or voice at any desired time. For example: at 6 AM, play the "East is Red" music; at 7 AM, play the "Big Ben" music; on May 1st, International Labor Day, play "We Workers Have Strength"; on October 1st, National Day, play "The March of the Volunteers"; during the Spring Festival, play festive music or advertising phrases like "XX Group wishes all citizens a happy New Year and prays for everyone's well-being..."