172-65254MA-04 (A-COS-10) 22 Apr 2020
14
Disassembly
NEVER apply direct heat to the float. The float may explode due to
increased internal pressure, causing accidents leading to serious injury
or damage to property and equipment.
WARNING
Use hoisting equipment for heavy objects (weighing approximately
20 kg (44 lb) or more). Failure to do so may result in back strain or other
injury if the object should fall.
CAUTION
When disassembling or removing the product, wait until the internal
pressure equals atmospheric pressure and the surface of the product
has cooled to room temperature. Disassembling or removing the
product when it is hot or under pressure may lead to discharge of fluids,
causing burns, other injuries or damage.
CAUTION
It is a recommended practice to dismantle and inspect the product once a year for
preventive maintenance purposes. It is especially important to perform an inspection
immediately after the initial run of a new line or before or after equipment that is out
of service for a long period of time. (Installation, inspection, maintenance, repairs,
disassembly, adjustment and valve opening/closing should be carried out only by
trained maintenance personnel.)
Remove all pressure from the piping (both upstream and downstream). Then remove
inlet and outlet flange retaining bolts and nuts to permit removal of the product.
Secure the product in a vise to perform the inspection.
Disassembling the Adjustment Section
Loosen the adjustment screw completely and remove the hex bolts. Having removed
the spring housing, you will see the diaphragm support, coil spring and spring housing.
Check for seizure or any damaged screw threads.
Spanner Cap
Nameplate
Spring Housing
Diaphragm Support
Coil Spring
Spring Retainer
Ball
Adjustment Screw
Locknut
Hex Bolt
