Elliott Roto-Jet I 0620A, Operating And Maintenance Instructions Manual

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0620A Roto-Jet I
OPERATION (CONT.)
The machine is now ready to operate.
Hold the end of the flexshaft with your hand about 12” (304.8mm) back from the cleaning device.
Insert the cleaning device just inside the tube to be cleaned and hold the flexshaft away from your
body. Depress the foot switch and start to feed the flexshaft down the tube.
It is important that the flexshaft not be forced down the tube. If you meet resistance, proceed at a
slower pace or refit the flexshaft with a smaller cleaning device. Should the flexshaft meet too much
resistance it will begin to coil. DO NOT ALLOW THE FLEXSHAFT TO COIL. Coiling of the flexshaft
could cause binding within the casing and shear the core material. If a blockage is encountered, and
the shafting begins to coil, immediately stop feeding the shafting into the tube and start drawing the
shafting back until coiling stops. Then proceed to slowly feed the flexshafting into the tube, being sure
to draw the shafting back when blockage is encountered and coiling begins. Follow this procedure
until the cleaning device removes the blockage.
TOOL TIP
Operate the flexshaft as straight as possible to minimize any sharp radius
bends. This applies to both brush insertion and 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.
WARNING
This machine drives high speed, rotating cleaning devices. It is recommended
that the operator wear safety glasses with side shields or full face shield eye
protection, gloves and water repellant, nonskid foot wear. Avoid contact with
objects other than the tube when the machine is in operation.
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. For Model
0620AR users, stop forward rotation of the machine when the tape mark
reaches the tube sheet and start reverse rotation to back the cleaning device
out of the tube.