172-65167M-01 (VA Series) 8 Jan 2003
7
Maintenance
Take measures to prevent people from coming into direct contact with
product outlets. Failure to do so may result in burns or other injury from
the discharge of fluids.
CAUTION
Be sure to use only the recommended components when repairing the
product, and NEVER attempt to modify the product in any way. Failure to
observe these precautions may result in damage to the product or burns
or other injury due to malfunction or the discharge of fluids.
CAUTION
Parts Inspection
When parts have been removed, or during periodic inspections, use the following
table to inspect the parts and replace any that are found to be defective.
Procedure
Gasket(s): check for warping and damage
Valve Seat: check for scratches or wear
Float: check for scratches or dents
Float Guide: check for damage
Disassembly / Reassembly
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 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
Be sure to use only the recommended components when repairing the
product, and NEVER attempt to modify the product in any way. Failure to
observe these precautions may result in damage to the product or burns
or other injury due to malfunction or the discharge of fluids.
CAUTION
Use the following procedures to remove components. Use the same procedures in
reverse to reassemble. (Installation, inspection, maintenance, repairs, disassembly
and adjustment should be done only by trained maintenance personnel.)
Dissassembly / Reassembly Procedure
Part During Disassembly During Reassembly
Cover Bolt Remove with a socket wrench Consult the table of tightening torques
and tighten to the proper torque
Cover Lift off to remove Make sure there are no pieces of the old
gasket left on the sealing surfaces and
reattach
Cover Gasket Remove, clean sealing surfaces Replace with a new gasket
Set Screw Remove with a Philips
screwdriver
Consult the table of tightening torques
and tighten to the proper torque
Valve Seat Holder Remove; take care as it may
come with the valve seat
Attach making certain that the valve seat
in the proper position
