FUME HOOD SERVICE FIXTURES
Removal of
Gasketed
Access Panel
Installation of
Gasketed Access Panel
22
Dimensions are nominal and illustrations and specifications are based
on the latest product information available at the time of publication.
The right is reserved to make changes at any time without notice.
SAFEAIRE
®
LABORATORY FUME HOODS
OPERATION, MAINTENANCE AND INSTALLATION INSTRUCTIONS
MAINTENANCE & ADJUSTMENTS
Insert screwdriver and
wedge out panel and
gasket assembly.
The fixtures used within fume hoods are needle valve type, and
if they wear, stainless steel cone and seat replacement kits can
be ordered from Fisher Hamilton. It is necessary to remove the
handle from the valve and then remove the valve mechanism.
This can be done through the access panels (shown above) if
fixtures are mounted in the superstructure, or from inside the
cupboard if the fixtures are deck mounted.
Access to the valves by removal of the exterior end panels
(Step 1 on Page 4) permits seat replacement without the need
to remove the valve. This approach is recommended when ends
are exposed and accessible.
Access to service fixture valves on fume hoods without access
panels is obtained by removal of the exterior end panels (Step 1
on Page 4) when hoods are free-standing.
Access Through
Front Posts
When ends are not accessible, access is gained through the
front posts. Remove louver panel, unscrew index button, control
knob, and retainer flange from fixture handle rod. Remove two
(2) screws from post as shown above, lift up and outward to
remove post. Electrical fixtures are connected to post with
flexible conduit and can remain attached.
CLEANING FUME HOOD INTERIORS
Fume hood liners are maintained by an occasional washdown
with detergent and warm water. Stains and salt deposits can
be removed with a weak acid solution (5%) or an appropriate
solvent –
DO NOT USE ACETONE.
Remove baffles for access
to all surfaces. See Page 13 for removal and installation
procedures.For deposits of dirt or stubborn stains on stainless
steel, follow procedures outlined under Working Surface
Section.
The use of organic chemicals or materials in a specialized
perchloric acid fume hood with a stainless steel interior should
be avoided.
Lift up and pull out
Twist the corners of gasket towards cutout
before insertion. Replace the panel and work
the entire periphery of the gasket to be sure
that the gasket is completely snapped into
position. Gasket should be smooth and tight
when properly seated.
Screws
Front Corner Post
Index Button,
Screw,
Control Knob,
and Retainer
Flange
FLUORESCENT LIGHT TUBE REPLACEMENT –
AUXILIARY AIR FUME HOODS
1. Remove louver panel assembly by removing three (3)
screws, as shown above.
NOTE:
Two people should perform this operation, one to hold
the louver panel, and the other to remove the three
screws.
2. With one person at each end, lift the panel up and push top
inward to disengage from two (2) retaining studs, then lower
the panel and tilt the bottom outward to remove as shown
above.
3. Lift sash enclosure up one (1) inch and lay back over top of
light housing. Grasp and rotate fluorescent tube to remove.
Replace with new tube and re-assemble in reverse order.
Remove three screws
Summary of Contents for SAFEAIRE series
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