172-65133M-04 (LA Series) 1 Oct 2021
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
Operational Check
A visual inspection according to the following items should be done on a daily basis
to determine whether the air vent is operating properly or has failed. Periodically (at
least biannually) the operation should also be checked by using a stethoscope,
thermometer or TLV Pocket TrapMan.
If the air vent should fail, it may cause damage to piping and equipment, resulting in
faulty or low quality products or losses due to steam leakage.
Normal
: The sound of flow can be heard while air is discharged. When
air discharge finishes, the valve closes along with slight
discharge of steam.
Blocked
(Discharge
Impossible)
: No air is discharged. The air vent is quiet and makes no noise,
and its surface temperature is low.
Blowing
: Live steam continuously blows from the outlet and there is a
continuous metallic sound.
Steam Leakage : Live steam is leaking through the outlet, accompanied by a
high-pitched sound.
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: Check for warping or damage
Screen: Check for clogging or corrosion damage
X-element: Check for damage
Valve seat: Check for damage
Check inside of body for rust and scale
Check X-element valve and valve seat for rust and scale or oil film,
and also check for wear
