HP 8481A Operating And Service Manual page 21

HP 8481A/82A/83A
08481-90049
10. Place the bulkhead on its face, connector side down with the gold
wires pointing up. Using a 5/8 in (16 mm) open end wrench,
remove the cap nut A1MP11.
11. Turn the bulkhead assembly upside down and shake out the old
parts. Watch where the polyiron slug A IMP 12 rolls to and keep it
for the new cartridge unit.
Caution
Jf|
The gold wires on the new cartridge unit are easily damaged and
V
cannot be repaired.
12. Slip washer A1MP14 inside the bulkhead A1MP10. Now load in the
new cartridge unit with the gold wires pointing out, holding the
polyiron slug inside the unit until everything is in place.
13. Press the top of the bulkhead. A slight springlike action indicates
the cartridge is properly seated. If the cartridge unit does not
spring a little when pressed, carefully remove the cartridge unit
''(sb you do not damage the gold wires) and use a thinner washer,
A1MP15. If it still does not spring, you should rebuild the center,
conductor (step 6) with new parts.
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