Omega Engineering HH-21 - Page 22

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Re-assemble the instrument by following the reverse of the above procedure.
CAUTION
Do not use excessive torque when re-installing the nylon
machine-screw into the rear case. Excess torque will dam-
age the part.
WARNING
Do not substitute a metal part for the nylon machine-
screw. Doing so will degrade the electrical isolation of the
instrument.