MUELLER
®
Improved Fire Hydrant
Replacing Traffic Flange and Brass Stem Coupling (Sealed Oil Reservoir 1962 Style)
MUELLER Improved Hydrant with
Upper Barrel knocked over by truck.
Note broken pieces of Traffic Flange
lying on ground.
Unbolt and remove broken Traffic
Flange from Upper Barrel. Remove
Weather Cap, Hold down Nut, and
Operating Nut from Bonnet. Lubricate
Brass Sleeve and slide over threaded
Stem end to prevent O-ring damage.
Unbolt Bonnet from Upper Barrel. Slide
Upper Stem out of Bonnet. Remove
damaged Stem Coupling and Sleeve
from Upper and Lower Stem.
Place new Stem Coupling sleeve part
onto Upper Stem.
Note: If Upper Stem of Hydrant
is 1
1
/
4
” In diameter, cut sleeve as
Indicated by lettering on sleeve.
Screw new Stem Coupling part onto
Lower Stem as far as threads permit.
Screw Upper Stem into Stem Coupling
until it contacts the Lower Stem.
WARNING: Failure to shut off gate valve to isolate Hydrant from main water source can result in serious bodily injury.
Follow instructions at the bottom of page 1 before attempting any repairs.
!
4
EqUIPMENT & TOOLS NEEdEd – PPE: Hard hat, safety shoes, safety vest, safety glasses, work gloves.
Tools: Wrench, A-311 Operating Wrench, A-366 Brass Sleeve, MUELLER Hydrant Lubricant.
5
4.
Turn Stem Coupling and Upper Stem
so that slot in Thimble aligns with the
tongue and groove of Stems. Hold
Upper Stem in alignment and screw
Stem Coupling upward until tongue
and groove of Stems firmly lock
together. Tighten with wrench. With
Stem Coupling in place, slide Sleeve
downward so that lower end of Sleeve
surrounds upper end of Stem Coupling.
Be sure Sleeve projections fit into Stem
Coupling slots. With Sleeve in place,
tighten set screw in Sleeve.
2.
1.
3.
