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Parts Removal/Replacement
Humphrey Field Analyzer II - i
Confidential and Proprietary
Field Service Guide
3 - 56
52235C1105
3.45 Quarter-Turn Fastener Replacement
The 1/4-turn fastener consists of a 1/4-turn stud and an anchor. The stud is
commonly captured in place by a small plastic washer. The anchor is held in place
by an internal, spring-loaded tab at the upper (outer) end of the anchor.
If it becomes necessary to replace the anchor, proceed as follows.
To remove the anchor:
1)
Insert a 1/4"-wide screwdriver blade into the two small slots in the spring-
loaded tab at the upper end of the anchor.
2)
Push in on the tab with the screwdriver and turn it 1/8 turn
counterclockwise
, to latch the tab in its install/remove position. Remove
the screwdriver and push the anchor out towards the front.
To install the anchor:
3)
Make sure that the spring-loaded tab inside the anchor is latched in its
install/remove position (1/8 turn counterclockwise), then insert the anchor
into its hole in the assembly.
4)
Insert a 1/4"-wide screwdriver blade into the two small slots in the spring-
loaded tab.
5)
Push in on the tab with the screwdriver and turn it 1/8 turn
clockwise
to its
anchored position. Remove the screwdriver and check that the anchor is
properly secured in place.
Summary of Contents for humphrey HFA II-i series
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Page 424: ...Page 4 FA2i 013A PROPRIETARY and CONFIDENTIAL...
Page 502: ...FA2i 041 Page 3 Figure 2 Press rectangle in Top Left corner...
Page 516: ...Page 2 FA2i 046 Figure 1 Glass Film Wedge Detectors P N 67417 Note Spacing Washer Placement...
Page 517: ...FA2i 046 Page 3 Figure 2 Y Motor Turret Detector P N 67418 Note Spacing Washer Placement...