Zeiss humphrey HFA II-i series, Руководство по обслуживанию на месте

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PM and System Checkout Humphrey Field Analyzer II - i
Confidential and Proprietary
Field Service Guide
2 - 8 52235C1105
2.2 Preventive Maintenance Procedure
For U.S. domestic Field Service, an annual preventive maintenance (PM) visit is required for
every
HFA II - i instrument under service contract. The PM visit can be combined with a regular
service visit if the timing is suitable. The HFA II - i System Checkout Checklist (Section 2.1)
details the checks and measurements required to complete a PM.
In addition to the System Checkout, the following points should be checked during a PM or
service call.
P
Check that all external cable and cord connections are secure.
P
Check that the instrument is being powered from a properly grounded AC outlet.
P
Observe the ambient conditions in which the instrument is operating:
•
Are the cooling vents on the instrument unobstructed?
• Are there any ambient conditions present that may cause static generation
(carpeted floors, dry winter weather, etc.)?
P
Check whether the instrument operator(s) have any questions/comments regarding
performance of the instrument.
PM Procedure
1) Obtain the Before instrument data as prescribed on the Light Intensity worksheets
detailed in Section 4.8.1.
2) Apply a
very thin
film of clock oil (P/N 02534) to the projection assembly rails. The
recommended method is to place one drop of oil on your fingertip and lightly wipe it
along the length of the top of the rail. Do this once for each rail.
Caution —
Apply the oil sparingly. Excessive oil on the rails will migrate
to other assemblies and cause problems.
3) After the oil has been applied, proceed to the Motor Exerciser (Section 5) and exercise the
F motor (focus/carriage motor). Exercise the focus motor 20 times to distribute the oil on
the rails.
4) Check the rail ends and directly beneath the projection assembly for any excess oil.
Carefully wipe up any excess oil.
5) Clean the optics path. Refer to Appendix Q - Cleaning Optics, for general guidelines.
Note that cleaning certain elements in the optics path will affect the light intensity readings
of the instrument, and thus necessitate recalibration.
6) Clean the top and bottom air intake filters, and the power supply fan: