Using Power Feed Machine - RIDGID K-750 Operator's Manual

K-750 Drain Cleaning Machine
Using Power Feed Machines
1. Loosen feed knob and manually pull sufficient cable
out of drum to start tool and cable into the sewer inlet.
NOTE! Make sure power feed is set for proper cable
size before engaging feed. Also, when running
" cable with " pigtail, avoid power feeding
5 / 3 /
8 4
pigtail through assembly. This practice can
cause premature failure of the bearings. (See
Powerfeed Adjustment Procedure)
2. Move FOR/OFF/REV switch into FOR (forward) po-
sition. Do not step on the air foot switch pedal at this
time.
3. To use feed mechanism, turn feed knob down until
front bearing makes contact with cable - turn one full
additional turn - do not over-tighten (over-tightening the
feed knob can cause premature bearing failure).
Loosely grasp cable with gloved hand and place right
hand on the feed lever. Feed lever should be in the
neutral position (vertical or 12 o'clock). Exert sufficient
downward pressure on cable to maintain control while
depressing foot actuator to start drum rotation. Do not
force the cable. Allow it to feed itself into the drain.
(See Special Procedures for negotiating traps.)
WARNING
Before starting machine, operator's gloved hands
must be on the cable.
4. To power feed cable into line, move feed lever in
same direction as rotating drum and cable. Rate at
which cable is fed (0' - 20' per minute) into sewer is
controlled by position of feed lever away from neutral
(vertical) position.
WARNING
Always keep hand on the cable to feel tension.
5. Continue to feed the cable into the line until resis-
tance or obstruction is encountered. The condition will
generally become apparent to the operator as the
cable will have a tendency to twist sideways in the op-
erator's hands.
6. Operator should immediately respond to this condition
by moving feed lever into full reverse (opposite di-
rection of drum rotation). This should release the
twist in cable and reduce size of cable loop.
7. Once free of this obstruction and the load is relieved
from the cable, gradually feed cable forward.
Remember, when using the feed mechanism the rate
of cable advance is controlled by the power feed han-
dle. Allow cutter to advance slowly and work through
the obstruction. If cable shows signs of loading (gen-
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8
erally apparent by growing loop between machine
and drain), immediately back cutter from obstruction by
reversing feed.
NOTE! At this point, progress depends upon the sharp-
ness of the tool and the nature of the obstruction.
Continued operation should be in manual feed
"
3 /
4
mode until the obstruction has been cleared.
8. Manually pull back sharply on the cable to free the
cutter and relieve the load on the cable. Slowly ad-
vance 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.
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 and without warning so pro-
ceed 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 "Spe-
cial Procedures" section.
9. Several passes at a thoroughly blocked drain line
are recommended. After establishing flow, increase
cutter size to thoroughly clean line. Flush with strong
flow of water.
NOTE! Additional cable may be added. If required, refer
to "Special Procedures".
10. To retrieve cable from sewer line, move the feed
lever in opposite direction of drum rotation. The cable
should now feed itself back into machine.
NOTE! It is recommended that a continuous flush of
water be used to clean cable and tool as they
are retrieved.
11. When the tool is just inside the sewer inlet, release the
air foot switch pedal and allow the machine to come to
a complete stop.
WARNING
cable is rotating. Tool can whip causing serious injury.
13. Turn FOR/OFF/REV switch to OFF position and re-
move cord from power source.
14. Loosen feed knob. Hand feed the cable into the
machine.
15. Disengage the kickstands by tilting the machine for-
ward.
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WARNING
Never retract tool from sewer inlet while