Hydrometers Operation and Maintenance Manual - Baseline Systems

Maintenance 1½” - 8” Hydrometers, Cont.
FINGER STRAINER CLEANING AND REPLACEMENT
It is not necessary to remove the hydrometer from the pipeline or to disassemble it in order to
perform this procedure.
To Remove the Finger Strainer:
• Locate the inlet connection on the hydrometer body.
• Remove the angle nipples and other connection devices.
• Turn the nut counter-clockwise to loosen the finger strainer.
• Gently pull the finger strainer out.
• Clean or replace as necessary.
To Replace the Finger Strainer:
• Insert the finger strainer into the inlet connection and turn clockwise to tighten.
• Apply Teflon tape or similar material to seal the connections.
• Re-install the angle nipples and other connection devices.
REGISTER ASSEMBLY REMOVAL
AND REPLACEMENT
It is not necessary to disassemble the hydrometer to perform this procedure.
Removal:
• Remove the reed switch transducer (4) from
the register dial.
Gently turn and pull the switch (4) upward to
release it.
• Close the register cover (1).
• Using a large pipe wrench, turn the register
cover assembly (1, 2) counterclockwise until
you can remove it from the hydrometer cover
(12).
• Remove and set aside the sliding ring (3).
• Lift the register assembly (5) out of the
hydrometer body.
• Remove the register o-ring (6) and the adapter
ring (7) from
the register.
• Inspect and replace as necessary.
Replacement:
• Close the register cover (1).
• Place the register o-ring (6) around the register assembly. Insert the register assembly into
the adapter ring (7) and place them inside the hydrometer cover (12).
• Replace the sliding ring (3) over the register assembly.
• Replace the register cover assembly (1, 2) over the register. Turn it clockwise to tighten.
• Insert the reed switch (4) into its hole in the register dial. Gently turn the reed switch until
it is fully seated.
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