9) Do not modify the documents furnished by AUTEXIER (instructions, metal plates, certificates etc.).
CAUTION: AUTEXIER is not anymore responsible of the good working of the level indicator if this
one has been dismantled or modified by a person not approved by AUTEXIER.
V) Operating / Maintenance
1) It is imperative to maintain the visual level controller clean and ready to operate. This includes checking
periodically that no foreign body clogs the pipes and that the installation is free as possible of deposits and
impurities.
2) For references 149/449, 150/450, 184, 3184, 2276, 276 and 278 the packing gland (parts
12
,
13
and
14
) is
mounted by us at the factory. However, during the life of the equipment, it may be necessary to tighten
packing nut
14
; or to change of the
packing
12
.
To do this, after taking care to let the material to ambient temperature and making sure that the system has been
correctly bleeded, unscrew the
nut
40
, remove the
handwheel
8
unscrew the
packing nut
14
remove the
packing
gland
13
, remove the sealing gasket 12, put new packing in the
bonnet
2
, replace the
packing gland
13
, screw
packing nut
14
, put the
handwheel
8
, screw the
nut
40
. Packing glands must be tightened at the setting up of
operation and just enough to seal.
This maintenance should be carried out by qualified and duly authorized staff. This disassembly reassembly is the
only one authorized by AUTEXIER under conditions that parts are supplied by us, that the handling of the equipment
is made at ambient temperature, that the operator uses material in accordance with the classification of the area in
which it operates (potentially explosive), and it is well assured that the system has been properly purged beforehand,
without creating an explosive atmosphere during operation.
VI) Guarantee
All our products are guaranteed during twelve months from the delivery against any defect of material or
manufacturing, when the conditions of use are respected: this guarantee is limited to the replacement or to the repair
by our company of the defective recognized parts. We decline all responsibility in case of non respect with our
instructions.
Ref. 149 / 449
Ref. 150 / 450
Ref. 184
