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K9-12 FlexShaft
(Figure 16, Steps 4 & 5). If the cable
stops turning, do not continue operat-
ing the drill. This may cause the cable to
twist and kink. At any time, release the drill
switch to stop cable rotation.
Monitor the feedback from the feel of the
cable assembly in your hand and the
sound of the drill/knocker in the drain. If
the integral FlexShaft machine clutch or
the drill clutch disengages (indicated by
noise from the integral clutch or drill and
possibly some vibration of the drill), the
cable has likely stopped turning. See Drill
Adjustable Clutch Setting in the Battery
Powered Drill Set-up and Operation sec-
tion. When this happens, release the drill
switch to stop the rotation of the drill. Once
drill rotation is stopped the clutch will auto-
matically reengage, however, if the cable
end is stuck, it must be moved out of the
blockage before proceeding.
It may be necessary to move the chain
knocker out of the blockage to allow it to
come back up to speed.
If the chain knocker becomes stuck, it may
be able to be freed by running the drill in re-
verse for a short time. Do not run in reverse
for more than a few seconds to prevent
cable damage. In some cases, it may be
possible to pull the cable assembly and the
blockage out of the drain by hand. If this is
done, be careful to not damage the cable
assembly. Remove the blockage from the
knocker and cable and continue cleaning
the drain as detailed above.
If using with a camera, do not run the
chain knocker into the camera head or
push rod.
In some cases, to clean the opposite side
of the pipe it may help to run the drill in
REVERSE for a short time.
14. Continue to clean the rest of the drain
while retrieving the cable. Once the drain
has been cleaned, retrieve the cable and
feed back onto the drain cleaning machine.
Pay close attention, as the cable may
lodge in a blockage while being retracted
(Figure 16, Step 6).
15. Watch for your sheath marking as the
cable assembly is retrieved; listen care-
fully to the sound of the knocker as it
approaches the pipe entrance. Release
the drill switch when the chain knocker
nears drain opening. Do not pull the chain
knocker from drain while it is rotating. The
16
Drain Cleaning Machine
™
chain knocker can whip around and can
cause damage or serious injury.
16. If needed for complete cleaning, repeat
the above procedure.
17 . Pull any remaining cable assembly from
the line by hand and push back into the
drum. Prepare the machine for transport.
Using Machine With Brushes
Using the machine with a brush is similar to
use with a chain knocker. Brushes are used
for finer cleaning of the pipe; they are not
used for blockage removal. Remove block-
ages and heavy debris with a chain knocker
or other methods first. While chain knockers
are most typically rotated while withdrawing
the cable from the drain, brushes are typi-
cally used while advancing the cable. This
is because the brushes typically fill the drain
diameter and push debris in front of them.
See Figure 17 for general steps.
Step 1
Step 2
Step 3
Figure 17 – Cleaning Drain Walls With Brush
1. Advance the brush (generally not rotating)
into the drain.
2. When close to the area of the drain to be
cleaned, if possible, start a flow of water
through the drain to carry debris away
during cleaning.
3. Rotate the cable/brush at full speed and
gradually advance the cable into the drain
to clean the walls as desired.
Brushes can also be used in conjunction with
chain knockers such as centering devices
or for combined cleaning. Usage depends
999-995-413.08_REV. D
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