Manual

Maintenance 4-1
4 Maintenance
WARNING! Allow only Asymtek-trained personnel to perform the following tasks. Follow the
safety instructions in this document and all other related documentation.
Overview
The Fan Width Control system requires Periodic Maintenance for efficient operation. Perform the
following tasks as indicated. A Parts subsection is also included for ordering replacement parts.
?NOTE Refer to your specific dispensing system manuals for dispensing system
maintenance instructions.
CAUTION! Protect the Sensor Shroud opening when cleaning the Sensor Fixture.
Periodic Maintenance
Daily
1. Check the trigger level of the Sensor Amplifier to ensure it is 5% to 10% below the “no
obstruction” level. Refer to “Setting the Fiber Optic Fan Sensor Sensitivity” procedure in the
Operation section of this manual.
2. Inspect the Sensor Lens for debris or conformal coating. Clean with solvent and cotton swab
if necessary. If the lens cannot be cleaned, replace it with a clean lens.
3. Inspect the Baffle aperture holes for blockage or excessive coating.
4. Inspect the Drain Pan for blockage in the Drain Tube. Clean or replace tubing if necessary.
Weekly
1. Wipe coating from Drain Pan Bracket.
Monthly
1. Replace any components that are badly worn or damaged.
> See the exploded view drawings at the end of this section for recommended spare parts.
2. Re-assemble all components and recalibrate the FWC system as described in “Initialization
and Calibration” in the Operation section of this manual.