Operation; Feeding The Cable Into The Drain - RIDGID K-750 Manual

K-750 Drain Cleaning Machine
equipment such as latex or rubber gloves, face
shields, goggles, protective clothing, respirators
and steel-toed footwear.
Do not allow the cutter to stop turning while the ma-
chine is running. This can overstress the cable and
may cause twisting, kinking or breaking of the cable.
Twisting, kinking or breaking cable may cause strik-
ing or crushing injuries.
Position machine cable outlet within 3' (0.9 m) of the
drain inlet or properly support exposed cable when
the distance exceeds 3' (0.9 m). Greater distances
can cause control problems leading to twisting,
kinking or breaking of the cable. Twisting, kinking or
breaking cable may cause striking or crushing in-
juries.
One person must control both the cable and switch.
If the cutter stops rotating, the operator must be able
to turn the tool OFF to prevent twisting, kinking
and breaking of the cable and reduce the risk of in-
jury.
Follow operating instructions to reduce the risk of
injury from twisted or broken cables, cable ends
whipping around, machine tipping, chemical burns,
infections and other causes.
1. Make sure that machine and work area is properly set
up and that the work area is free of bystanders and
other distractions.
Figure 12 – In Operating Position, Manually Feeding
Cable
2. Pull cable out of drum and feed into drain. If needed,
loosen AUTOFEED knob. Push cable as far into drain
as it will go. At least one foot (.3 m) of cable must be in
drain so that the end of the cable will not come out of
the drain and whip around when the machine is
started.
Directly route the cable from the outlet of the machine
to the drain opening, minimizing exposed cable and
12
changes in direction. Do not tightly bend the cable –
this can increase the risk of twisting or breaking.
3. Assume a proper operating position:
• Be sure you can control the ON/OFF action of the
foot switch and can quickly release the foot switch
if needed. Do not press foot switch yet.
• Be sure that you have good balance, do not have to
over reach, and cannot fall on the foot switch, drain
cleaning machine, the drain or other hazards.
• You must be able to place at least one hand on the
cable at all times to control and support the cable.
• You must be able to reach the FOR/OFF/REV
switch.
This operating position will help to maintain control of
the cable and machine. See Figure 12.
4. Move the FOR/OFF/REV switch to the FOR (FOR-
WARD) position. Do not depress the foot switch yet.
FOR/OFF/REV refers to the drum/cable rotation and
not to the direction of cable movement. Do not rotate
the cable in reverse except as specifically described
in these instructions. Running the drain cleaner in
REV can damage the cable.

Operation

The K-750 Drain Cleaning Machine is available in two
different feed configurations, either manual feed or AUTO -
FEED. A K-750 supplied with the AUTOFEED can either
feed the cable with the AUTOFEED (feed lever position) or
by manually pulling the cable from the drum and feeding it
into the drain. With the AUTOFEED you can switch back
and forth between operating methods as needed. A K-750
without the AUTOFEED can only be used manually.

Feeding The Cable Into The Drain

Manual Operation
Confirm that at least one foot (.3 m) of cable is in the
drain. Grasp the exposed cable with both gloved hands
equally spaced and pull 6"-12" of cable out of the drum so
that there is a slight bow in the cable. Gloved hands must
be on the cable to control and support the cable. Improper
cable support can allow the cable to kink or twist and can
damage the cable or injure the operator. Make sure that the
cable outlet of the drain cleaner is within 3' of the drain
opening.
Depress the foot switch to start the machine. The person
controlling the cable must also control the foot switch. Do
not operate the drain cleaner with one person controlling
the cable and another person controlling the foot switch.
This can lead to twisting, kinking and breaking of the
cable. Feed the rotating cable into the drain. The rotating
cable will work its way into the drain as you push on the
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