McElroy Hornet XL ASW31401, Operator'S Manual

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Gener
al
Information
3 - 1 General Information Hornet™ XL
Theory of Heat Fusion
The principle of heat fusion is to heat two pipe surfaces to
a designated temperature, and then fuse them together by
application of force. This develops pressure which causes flow
of the melted materials, which causes mixing and thus fusion.
When the thermoplastic material is heated, the molecular
structure is transformed into an amorphous condition.
When fusion pressure is applied, the molecules from each
thermoplastic part mix. As the joint cools, the molecules return
to their form, the original interfaces are gone, and the fitting
and pipe have become one monolithic unit. A strong, fully
leak tight connection is the result.
The principle operations include:
Clamping
The pipe and fitting must be held firmly to allow
all subsequent operations to take place.
Cleaning The area of pipe that the fitting will come in
contact with must be cleaned and roughed up,
as well as the base of the fitting.
Aligning The fitting must be properly seated on the pipe
and then clamped in the machine for proper
alignment.
Heating
A melt pattern must be formed that penetrates
into the pipe and into the fitting.
Joining The melt patterns must be joined with a specified
force. The force must be constant around the
interface area.
Holding
The molten joint must be held immobile with a
specified force until adequately cooled.
Inspecting Visually examine the entire circumference of the
joint for compliance with standards established
by your company, customer, industry, federal,
state, or local regulations.
Nomenclature
Hornet™ XL Carriage
A - Main Pipe Chains
Chain used to secure the Hornet XL to the main pipe.
B - Main Pipe Clamp Knobs
Used to tighten the main pipe chain on the pipe.
C - Heater Stripper Bars
Strips the heater from the main pipe and the fitting.
D - 160mm Pipe Jaws
Jaws used to clamp onto pipe, fitting adapter or drill adapter.
E - 63mm Pipe Inserts
Size of inserts used to clamp the fitting adapter and drill
adapter.
F - Pipe Jaws Clamp Knobs
Used to tighten the pipe jaws to pipe, fitting adapter or drill
adapter.
G - Brake
Holds the position of the carriage when applied.
H - Detachable Handwheel
Rotates to open and close the carriage. The handle can be
folded in for storage. The handwheel is also detachable and
can be attached to the other side of the carriage.
I - Tailstock
The tailstock allows the Hornet XL to attach to any size main.
With the extension chains from the accessory kit, the Hornet XL
can attach to a 125mm to 630mm main pipe.
D
A
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C
E
F
G
H
I
GENERAL INFORMATION
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