Groth 7678 User Manual
Page 5
5
CAUTION
The connecting tank or system must be free
of all hazardous or flammable vapors before
inspection
procedures
begin.
Before
disassembling arrester consult Material
Safety Data Sheets (MSDS) for all products
that the arrester was exposed to in service.
The
components
should
be
cleaned
according to the MSDS procedure. Take
appropriate safety precautions regarding eye
protection, skin contact & respiration.
1. Loosen the hex nuts and remove the
weatherhood.
2. Remove the hex nuts and retainer plate,
and studs if necessary to remove element
housing.
2. When removing the element housing for
maintenance,
support
the
weight
by
attachment to the housing handles, or lifting
eyes.
WARNING
The lifting eyes on the element housing are
to be used for handling the housing only
during inspection and mainte-nance. DO
NOT use these eyes to lift the entire flame
arrester assembly.
In a horizontal installation, the element
housing
should
be
supported
before
removing the studs. Use structures and
equipment suitable for supporting the
components weight. The weight is noted on
the drawing attached to this manual.
4. Remove
the
housing
assembly
for
inspection.
The
flame
element
and
supporting grids shall be visually inspected
for damage or corrosion build-up from both
sides. If the flame element appears to be
damaged, it should be replaced immediately
with a new one.
5. Verify that the element openings are not
obstructed by viewing a light source through
the element passages. If the flame element
is dirty it can be cleaned by one of the
following methods:
•
Compressed air.
•
High pressure steam or water purge.
•
Solvent wash followed by compressed air.
WARNING:
Never try to clean the element by
inserting a sharp tool or probe into the
orifices. Any damage to the integrity of
these passages can render the flame
arrester ineffective.