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Groth 7678 User Manual

Page 5

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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.