Fujitsu F53 Bill Dispenser: Lubrication Diagnostic and... | terminalfaults.org

Technical Background:

The Fujitsu F53 utilizes a 24V DC motor-driven system with optical sensors for bill detection and positioning. Solenoids control the mechanical gates and rollers that guide bills through the dispenser path. Improper lubrication can increase motor load, reduce solenoid response time, and interfere with optical sensor readings due to accumulated debris.

Symptoms:

Observed malfunction of the Fujitsu F53 bill dispenser. Possible symptoms include: Bill acceptance failure, slow dispensing, bill jams, unusual mechanical noise during operation, or complete operational failure.

Possible Causes:

Dried or degraded lubricant on mechanical components, increasing friction.
Accumulation of dust, debris, or contaminants within the bill transport path.
Excessive wear on rollers or belts, causing slippage and misfeeds.
Solenoid malfunction due to increased load or coil degradation.
Optical sensor contamination or failure, leading to incorrect bill detection.
Motor bearing wear causing increased friction and reduced torque.

Solution:

1

Perform a visual inspection of the bill dispenser mechanism for obvious obstructions or damage.
2

Use compressed air to carefully remove loose dust and debris from the bill transport path and optical sensors.
3

Apply a small amount of appropriate synthetic lubricant to moving parts such as rollers, gears, and solenoid linkages, following the equipment manufacturer's guidelines.
4

Test the bill dispenser with a stack of bills to observe its performance. Monitor for any signs of continued malfunction.
5

Check the 24V DC power supply voltage to the bill dispenser to ensure it is within specified tolerances.
6

Inspect the condition of the rollers and belts. Replace them if they show signs of excessive wear or damage.
7

Review the error logs of the host system for any recorded fault codes related to the bill dispenser.

Safety Warning:

The Fujitsu F53 bill dispenser operates with 24V DC. While this voltage is generally considered low-voltage, improper handling or short circuits can pose a risk of electrical shock or equipment damage. Ensure the power to the kiosk is disconnected using Lockout/Tagout (LOTO) procedures before performing any maintenance or troubleshooting. Wear appropriate personal protective equipment, such as gloves and eye protection.

Prevention:

Implement a regular maintenance schedule for the Fujitsu F53 bill dispenser. This should include: Quarterly cleaning of the bill transport path, annual lubrication of moving parts, and periodic inspection of rollers and belts for wear. Use only approved lubricants recommended by the manufacturer. Ensure proper environmental controls to minimize dust and contaminant exposure.

Expert Tip:

Use a small inspection mirror and a bright flashlight to inspect the bill path for obstructions or debris in hard-to-reach areas. A non-residual electronic contact cleaner can be used to clean optical sensors, but exercise caution to avoid damaging the sensor surface.

Frequently Asked Questions

•What type of lubricant is recommended for the F53?

A synthetic lubricant specifically designed for electromechanical devices, compatible with plastics and elastomers, is recommended. Consult the Fujitsu service manual for specific lubricant recommendations.

•How often should the F53 be cleaned?

In a typical kiosk environment, cleaning should be performed quarterly. In high-dust or high-usage environments, more frequent cleaning may be necessary.

•What are the torque specs for the roller motor?

The torque specifications for the roller motor are detailed in the F53 service manual. Consult the manual for precise values to avoid damage during disassembly and reassembly.

Fujitsu F53 Bill Dispenser: Lubrication Diagnostic and Maintenance

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•What type of lubricant is recommended for the F53?

•How often should the F53 be cleaned?

•What are the torque specs for the roller motor?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: