Using Manual Feed Machine - RIDGID K-7500 Manual

K-7500 Drain Cleaning Machine
Figure 11 – Feed Lever Operation
8. Several passes at thoroughly blocked drain lines are
recommended. Start with a grease cutter or 2" blade
or a blade typically 2" smaller than the drain size.
After establishing drain flow, increase cutter size to
thoroughly clean the lines.
TIP: Know approximately where you are going. Over -
running cable into city sewers septic tanks can cause
cable damage and retrieval problems.
NOTE! Additional cable may be added if required. Refer
to Special Applications Procedure section.
9. To retrieve the cable from the sewer line, move the
AUTOFEED handle in the same direction of the drum
rotation.
Do not put the machine in reverse. The ma-
CAUTION
chine should be kept running during the retrieval process
for thorough cleaning.
NOTE! A continuous flush of water should be used to
clean the cable and tool as they are retrieved.
10. When the tool is inside the sewer inlet, release the air
foot switch pedal and allow the machine to come to a
complete stop.
Never retract tool from sewer inlet while
WARNING
cable is rotating. Tool can whip causing serious injury.
11. Turn FOR/OFF/REV switch to OFF position and re-
move cord from power source.
12. Loosen the feed knob and pull the remaining cable
and tool from the sewer. Hand feed the cable into the
machine.
13. Disengage the spring loaded kickstand bar by tilting
the machine forward and forcing the bar forward of the
tires (Figure 8) .
10

Using Manual Feed Machine

1. Manually pull a sufficient length of cable out of the
drum to form a slight loop and push the tool and
cable into the sewer inlet. Apply downward pressure
with both hands on cable.
NOTE! Do not force cable. Allow it to feed itself into
the drain.
2. Move FOR/OFF/REV switch into FOR (forward) po-
sition.
WARNING
Before starting machine, operator's gloved hand
must be on the cable.
3. Exert sufficient downward pressure on cable to keep
it in sewer line while depressing air foot switch pedal
to start cable rotating.
4. Pull cable out of drum and allow cable to feed itself into
the line. Always keep hand on the cable to feel the ten-
sion.
5. Continue to feed the cable into the line until resistance
or obstruction is encountered. The condition will gen-
erally become apparent to the operator as the motor
will "lug" down and/or the cable will have a tendency to
twist sideways in the operator's hands.
If the cable shows signs that the cutter has stopped ro-
tating, pull back sharply on the cable to free the cutter
and relieve the load on the cable. Slowly advance
the cable back into the obstruction. Repeat this process
until the obstruction is clear. Remember, make sure the
cutter is rotating at all times and never force the cable.
6. Once flow is established, use running water to wash
debris and roots down the drain while finishing the job.
WARNING
Do not allow tension to build up in the cable. This
will happen if the cutting tool hits a snag and stops
turning, but the motor and its drum continue to ro-
tate. Torque builds until the cable suddenly twists,
potentially wrapping around your hand or arm. This
can happen quickly without warning, so proceed
slowly and carefully as you feed the cable into the
drain. If tool gets hung up in an obstruction, refer to
Reverse Operating Instructions in the "Special
Procedures Section".
7. Several passes at thoroughly blocked drain lines are
recommended. Start with a grease cutter or 2" blade,
or a blade typically 2" smaller than the drain size.
After establishing drain flow, increase cutter size to
thoroughly clean the lines.