Hardy Process Solutions HI 2160RC PLUS, Operation And Installation Manual

Page: 30 / 220

Chapter 3 - Installation
3-7
• Hold the controller so that it is aligned and flush against
the enclosure front panel throughout the entire tightening
process.
• Facing the rear panel of the controller, tighten each screw
in a clockwise direction from corner to corner until each
screw is finger tight. (See Fig. 3-11)
NOTE: If the machine screws should come loose, use a thread lock compound when reinstall-
ing. See the Troubleshooting Section for recommended thread lock compounds.
• Using a phillips screw driver, continue the clockwise
direction and partially tighten each screw until the NEMA
4 bezel gasket is completely compressed and the bezel is
flush against the front panel of the enclosure. (See Fig. 3-
10 & 3-11) Do not tighten one screw down completely
and then go on to the next screw. Each screw must be
tightened a little before going on to the next to maintain
the alignment between the controller and the front panel
of the enclosure.
CAUTION DO NOT OVERTIGHTEN THE MACHINE SCREWS. OVERTIGHTENING
CAN DEFLECT THE BEZEL SO THAT IT WILL NOT BE WATER TIGHT
AND/OR BREAK OFF THE CORNERS OF THE BEZEL.
B e fo r e t ig h t e n in g t h e m o u n t in g b a r s
A ft e r t ig h t e n in g t h e m o u n t in g b a r s
FIG. 3-10 NEMA 4 GASKET BEFORE AND AFTER TIGHTENING THE
MOUNTING BAR FASTENERS