SERVICE AND MAINTENANCE
1863 and 1864 Meghommeters
28
6.7 Knob Installation
To install a knob assembly on the control shaft:
1. Place the black nylon thrust washer over the
control shaft, if appropriate.
2. Mount the bushing on the shaft, using a small
slotted piece of wrapping paper as a shim for
adequate panel clearance.
3. Orient the setscrew on the bushing with
respect to the panel-marking index and lock
the setscrew with the appropriate hex-socket
key wrench.
Caution
Make sure that the end of the shaft
d o e s n o t p r o t r u d e t h r o u g h t h e
bushing or the knob won’t bottom
properly.
4. Place the knob on the bushing with the reten-
tion spring opposite the setscrew.
5. Push the knob in until it bottoms and pull it
slightly to check that the retention spring is
seated in the groove in the bushing.
6. If the retention spring in the knob comes
loose, reinstall it in the interior notch that
has the thin slit in the side wall.
It will not mount in the other notch.
Figure 6-4. Top interior view of 1864 Megohmmeter
Figure 6-5. Bottom interior view of 1864
Megohmmeter
Summary of Contents for 1863
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Page 45: ...1863 and 1864 Meghommeters 31 PARTS LISTS AND DIAGRAMS Chapter 7 PARTS LISTS AND DIAGRAMS...
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Page 50: ...36 PARTS LISTS AND DIAGRAMS Figure 7 3 Type 1863 switching diagram...
Page 52: ...38 PARTS LISTS AND DIAGRAMS Figure 7 6 Type 1863 schematic diagram...
Page 53: ...1863 and 1864 Meghommeters 39 PARTS LISTS AND DIAGRAMS Figure 7 7 Type 1864 switching diagram...
Page 55: ...1863 and 1864 Meghommeters 41 PARTS LISTS AND DIAGRAMS Figure 7 9 Type 1864 schematic diagram...
Page 56: ...42 PARTS LISTS AND DIAGRAMS Figure 7 10 Complete cabinet assembly P N 4182 2328...
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