ERICO CADWELD PLUS Rail Track Connection Web Bonds - Manual (Page 3)

WARNING: Rebonding over the application of an
earlier web bond is strictly forbidden! Rebonds must be
applied at least two inches away (centerline to centerline)
from an earlier bond to avoid serious structural harm to the
rail. Failure to observe this may result in a rail break leading
to property damage, injury or death to others.
WARNING: Back-to-back bonding of web bonds is strictly
forbidden! Bonds made on the opposite side of the rail to
an earlier web bond must be applied at least two inches away
(centerline to centerline) from the earlier bond to avoid serious
structural harm to the rail. Failure to observe this may result in a
rail break leading to property damage, injury or death to others.
IV. WELDING PROCEDURE
1. Place bond in welder with fl at surface against rail web
and end of terminal against bond clip. This correctly positions
the bond in the weld cavity. Be sure the bond clip is in good
condition and properly positions the terminal under the center
of the tap hole as shown. See Figure 7. WARNING: Correctly positioning the mold against the
rail with the welder device is critical for safety and
success in making a bond. There must be no gaps between
the lower part of the mold that contains the weld cavity and the
rail surface; if a gap is present, the mold should be discarded
and a new one used. See Figure 10. (Molds can generally
be used for up to 50 welds) The exothermic reaction reaches
a temperature in excess of 4000°F, therefore great care must
be exercised to avoid spillage of the molten metal. Failure to
observe this warning may result in molten metal leakage onto
the rail with the immediate risk of personal injury, and potentially
serious structural damage to the rail. Failure to locate the bond
at the neutral axis of the rail may also contribute to premature
rail damage. Either could result in a rail break leading to
property damage, injury or death to others.
Positioning Bar
Mold Height
Adjusting Screw
TB5-Hand Held Position
T21-Clamped Position
Tap Hole
Bond
Bond Clip
Terminal
2. Position the welder with attached mold on the rail. Use the
mold height adjusting screw of the positioning bar to locate
the bond terminal at the neutral axis of the rail. See Figure 8
for TB5 and Figure 9 for T21 welder.
3. Insert CADWELD PLUS welding material cup into mold.
See Figure 11.
FIGURE
7
FIGURE
8
FIGURE
9
FIGURE
10
FIGURE
11
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CADWELD ® PLUS Rail Track Connection Web Bonds
Refer to the mold tag for applicable instruction sheets. IPRSWCP_B
CADWELD PLUS