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K9-102+ & K9-204+ FlexShaft™ Drain Cleaning Machines
means that the drill will only turn when the
operator is depressing the drill switch. If the drill
switch is released, the drill will turn OFF. Set
drill in "FOR" rotation (see Figure 4).
Drill Speed
When using your FlexShaft Drain Cleaning
Machine, the required rotational speed range
is 1800 – 2500 rpm. Cleaning will be optimized
by rotating the chain knockers closer to the
2500 rpm maximum. To do this, know your bat-
tery powered drill specifications and settings to
optimize operation. Many battery powered drills
have multiple speed settings, and typically the
highest speed is in the range for operation of
the FlexShaft equipment. See Figure 6 for an
example of drill speed settings. Do not operate
the FlexShaft drain cleaning machine at over
2500 rpm.
Drill Speed Settings
Figure 6 – Drill Settings
Drill Adjustable Clutch Setting
Always use a battery powered drill equipped
with a properly set adjustable clutch. This will
help reduce the risk of cable damage in the
drum of the drain cleaner and reduce handle
forces.
Battery powered drills equipped with adjustable
clutches will typically have a torque adjustment
collar (Figure 6) marked with a scale in num-
bers starting at one and increasing to indicate
increasing torque at clutch disengagement.
The adjustable clutch is many times used for
driving screws, and may have a selector that
needs to be set to the "Screw Driving Mode"
(
) for the adjustable clutch to work. When
the adjustable clutch releases, the motor con-
tinues to turn but the drill chuck does not. Many
times this is accompanied by vibration/noise
from the drill.
Battery powered drills are often also equipped
with "Drill" (
) and "Hammer" (
of operation (Figure 7). In these modes, the
adjustable clutch does not work, and these
modes should never be used for FlexShaft
Drain Cleaning Machine operation.
8
Torque Adjustment Collar
) modes
Figure 7 – Selecting Proper Mode
When using the FlexShaft Drain Cleaning
Machines, always start with the adjustable
clutch set to approximately 25% of the total
clutch adjustment range (example – if the
torque adjustment collar on the drill is marked
from 1 to 20, the initial setting should be 5).
Operate the drain cleaner per these instruc-
tions. When clearing blockages, operate drill
at full speed for best cleaning. Do not force
the chain knocker into the blockage – if the
chain knocker cannot turn, it cannot clean
the drain. The chain knocker may need to be
moved away from the blockage to come back
up to speed. If during operation the drill clutch
continuously releases ("clutches out"), release
the drill switch and withdraw the cable from the
drain. Review the drain cleaner set up and op-
eration and confirm everything is correct – an
important part of the set up for proper opera-
tion is chain knocker selection (See Figure 9
for details) and adjustment. Make any needed
changes and continue cleaning drain.
If the drill clutch continues to release during
operation, the drill adjustable clutch setting
can be increased. The drill clutch can be in-
creased in steps up to 75% of the total clutch
adjustment range. (example – if the torque
adjustment collar on the drill is marked from 1
to 20, the maximum setting should be no more
than 15). Do not exceed 75% of the total
clutch adjustment range. Never place drill
in "Drill" (
) or "Hammer" (
this disables the adjustable clutch. This
increases the risk of cable damage in the
drum of the drain cleaner.
If the drill clutch continues to release when set
at 75% of the total clutch adjustment range,
consider using another RIDGID drain cleaning
machine.
) mode –
944-733-751.10_REV. A
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