mr
.
steam
®
C U S E R I E S
Installation, Operating & Maintenance Manual
Read all warnings and instructions before
performing installation or maintenance.
Safety glasses and gloves should be
worn at all times when working with or examining
water gauge glass and connections.
Pressure in generator to be at zero before proceeding.
Improper installation or maintenance of gauge glass
and connections can cause immediate or delayed
breakage resulting in bodily injury and/or property
damage.
Only properly trained personnel should
install and maintain water gauge glass and connections.
Pressure in generator must be at zero before proceed-
ing. Remember to wear safety gloves and glasses during
installation. Before installing, make sure all parts are free
of chips and debris.
1.
Apply Teflon tape or pipe dope to pipe threads.
Install top gauge fitting (fitting without a drain valve)
into the upper most tapping. Wrench tighten the fit-
ting until it is snug and the glass outlet is pointing at
five o'clock (about 1⁄ 8 turn from its final downward
vertical position).
2.
Install the bottom gauge fitting (the fitting with a
drain valve) until it is snug and the glass outlet is
pointing directly upward. Verify top and bottom fit-
tings are threaded into the tapping the same number
of turns (distance A = distance B).
3.
Remove glass packing nut, friction washer (depending
upon the model), and 0-ring from the fittings, and
place them, in the same order, on to both ends of the
gauge glass. Push both packings about an inch up the
gauge glass.
4.
Gently insert one end of the glass into the top gauge
fitting. Keeping the glass inside the top fitting, gently
rotate the top gauge fitting clockwise until vertically
aligned with the bottom gauge, then insert glass into
bottom fitting until glass bottoms out on the shoulder
inside the bottom fitting.
5.
Carefully raise glass about 1⁄ 16" and slide lower O-
ring down until the O-ring contacts the lower gauge
fitting.
DO NOT
allow the glass to remain in contact
with any metal!
6.
Carefully slide upper glass packing up as far as
possible.
7.
Hand tighten both glass packing nuts, then tighten
1/2 turn more by wrench. Tighten only enough to pre-
vent leakage. DO NOT OVER TIGHTEN! If any leak-
age should occur, tighten slightly, a quarter turn at a
time, checking for leakage after each turn.
Vessel Wall
Glass
Packing
Nut
O-Ring
(99174CV)
Top Gauge
Fitting
Guard Rail
Sight Glass
Friction Washer
Bottom
Gauge Fitting
Drain Valve
A
B
WATER GAUGE & GAUGE GLASS
INSTALLATION
26
