Elliott Roto-Jet 0420, Operating And Maintenance Instructions Manual

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10
0420 Roto-Jet
DIAGRAM B
TOOL TIP
Operate the flexshaft as straight as possible to minimize any sharp radius
bends. This applies to both brush insertion and at maximum cleaning
length. Operating the flexshaft in a constant sharp radius will flex fatigue
the wires in the core reducing its strength. Allowing the cleaning device
to exit the tube while rotating can cause premature shaft failure in the
tool coupling area. Never exit the tube with the tube cleaning device in
operation. For more information see “Technical” section.
TOOL TIP
Measure the length of the tubes being cleaned from the tube sheet to the tube
sheet at the opposite end. Transfer this measurement to the flexshaft from
the END of the cleaning device up the casing toward the machine. Mark the
end of the measurement on the casing by wrapping the point with electrical
tape. This will enable you to feed the flexshaft through the tube and stop the
cleaning device before exiting the tube on the opposite end.
TOOL TIP
Start to clean the tube bundle from the top of the unit to the bottom. Clean
the bundle one row at a time, marking with soapstone, each row of tubes that
have been cleaned.
Manifold Cap
Brass Coupling
Drive Coupling