General Instructions - Zeiss humphrey HFA II-i series Field Service Manual

Parts Removal/Replacement
3.1

General Instructions

Table 3-1 is the single source of reference for Removal/Adjustment requirements.
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Whenever a removal procedure is performed, refer to Table 3-1 to determine
which follow-up checks/adjustments are required.
System interconnect diagrams for the entire instrument are contained in Section 6.
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In addition to the drawings in this section, the parts drawings in Section 7 provide
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useful reference for parts identification and identifying relative locations during
removal/replacement procedures.
References from one procedure to another are shown in the form "(x.x)."
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EXAMPLE: In the CRT Removal/Replacement procedure, one of the steps is to
"Remove the operator panel (3.4)." If you need further details for removing the
operator panel, you can refer to Section 3.4, and then return to the CRT removal
procedure for the next step.
Simple removals that are clearly obvious are not described in this service guide.
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Unless noted otherwise, the steps for replacement (reassembly) are simply the
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reverse order of the steps described for removal and are not listed. Replacement
(reassembly) notes are included as needed.
All screws and nuts mentioned in the instructions are metric unless noted
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otherwise.
Because the covers interlock with each other, the required sequence for cover
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removal is:
The covers must be reinstalled in exactly the opposite sequence. Successful
reassembly requires careful attention to the interlocking points on the covers.
Field Service Guide
1. Front cover
2. Rear cover
3. Operator panel
(continued)
Confidential and Proprietary
3 - 4
Humphrey Field Analyzer II - i
52235C1105