ICT L70 Bill Acceptor: Professional Cleaning Guide -... | terminalfaults.org

Technical Background:

The ICT L70 uses optical sensors operating on infrared or visible light to validate bill denominations and detect counterfeit currency. Contaminants on the bill path surfaces or sensors attenuate the light signal, creating false negatives during validation. Solenoid activation requires sufficient 24V DC, and mechanical jams increase solenoid load.

Symptoms:

Accumulation of dust, debris, and foreign objects within the bill path of the ICT L70, leading to bill acceptance failures and potential mechanical jams. Reduced optical sensor accuracy due to contaminant buildup.

Possible Causes:

Accumulation of dust and airborne particles within the bill path.
Buildup of residue from polymer bills on rollers and guides.
Foreign objects (e.g., paper clips, staples, small coins) obstructing the bill path.
Contamination of optical sensors with dirt or grime, reducing their sensitivity.
Roller wear leading to inconsistent bill transport.
Insufficient cleaning and preventative maintenance schedule.

Solution:

1

Power down the ICT L70 bill acceptor. Engage Lockout/Tagout (LOTO) procedures: Disconnect the 24V DC power supply.
2

Inspect the bill path for any visible obstructions or foreign objects.
3

Use compressed air to gently blow out loose dust and debris from the bill path. Direct the airflow along the bill path to dislodge particles.
4

Clean the rollers and guides with a lint-free cloth dampened with isopropyl alcohol (90% or higher). Ensure the alcohol is fully evaporated before restoring power.
5

Clean the optical sensors with a specialized optical sensor cleaning swab or a very soft, dry brush. Avoid applying excessive pressure.
6

Test the bill acceptor with a stack of clean, valid bills of varying denominations. Monitor for proper acceptance and stacking.
7

Document the cleaning procedure and date for future reference.

Safety Warning:

High Voltage Hazard: The ICT L70 operates on 24V DC. Ensure power is disconnected before performing any maintenance. Mechanical Hazard: Moving parts can cause injury. Keep hands clear of the bill path while the unit is powered on. Chemical Hazard: Isopropyl alcohol is flammable. Use in a well-ventilated area and avoid open flames.

Prevention:

Implement a regular cleaning schedule based on usage and environmental conditions. High-traffic or dusty environments require more frequent cleaning.,Use a bill acceptor cover or enclosure to minimize dust exposure.,Train personnel on proper bill handling procedures to minimize contamination.,Regularly inspect the bill path for signs of wear or damage.,Maintain a log of cleaning and maintenance activities.

Expert Tip:

Check for firmware updates for the ICT L70. Firmware updates can improve bill recognition accuracy and address known issues. Use a small inspection mirror and a flashlight to thoroughly examine hard-to-reach areas of the bill path for debris.

Frequently Asked Questions

•What type of isopropyl alcohol is best for cleaning the bill path?

Use 90% or higher isopropyl alcohol to ensure rapid evaporation and minimize residue.

•How often should the ICT L70 be cleaned?

Cleaning frequency depends on usage and environment. In high-traffic areas, clean weekly. In cleaner environments, bi-weekly or monthly may suffice.

•What are the signs of worn rollers?

Signs include slippage, inconsistent bill transport, and visible wear or cracking on the roller surface.

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•What type of isopropyl alcohol is best for cleaning the bill path?

•How often should the ICT L70 be cleaned?

•What are the signs of worn rollers?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: