Operating Instructions - RIDGID K-750 Operator's Manual

K-750 Drain Cleaning Machine
To prevent tipping during use, machine
WARNING
should rest firmly on the kickstand.
4. Position the air foot switch pedal for easy operator
accessibility. Machine is designed for one person
operation.
5. Make sure FOR/OFF/REV switch is in the OFF position.
6. Select and install the proper tool to the end of the
cable. Put screwdriver in slot, turn 180 degrees and
slide apart. To connect, slide tool or cable together
and turn screwdriver slot in coupler 180 degrees.
Coupling is in locked position when hash mark is on
opposite side of screwdriver slot as shown (Figure 2).
NOTE! Proper Tool Selection
A good rule of thumb is to use a tool at least 1" smaller
than the line to be cleaned. The style of the tool is de-
termined by the nature of the job and is left up to the
operator. A good starting tool is a spear cutter or blade
cutter.
NOTE! Trap Leaders
Inner-Core Cable is not recommended for use through P-
Traps and severe bends in lines smaller than 4". A trap
leader, which is a flexible 2' length of cable, should be
connected to the front end of the cable.
7. Plug the Drain Cleaning Machine into the electrical
outlet, making sure to position the power cord along
the clear path selected earlier. If the power cord does
not reach the outlet, use an extension cord in good
condition.
To avoid electric shock and electrical
WARNING
fires, never use an extension cord that is damaged or
does not meet the following requirements:
•
The cord has a three-prong plug similar to the one
shown in Electrical Safety Section.
•
The cord is rated as "W" or "W-A" if being used out-
doors.
•
The cord has sufficient wire thickness (16 AWG
below 50'/14 AWG 50'-100'). If the wire thickness is
too small, the cord may overheat, melting the cord's
insulation or causing nearby objects to ignite.
To reduce risk of electrical shock, keep all
WARNING
electrical connections dry and off the ground. Do not
touch plug with wet hands. Test the Ground Fault Circuit
Interrupter (GFCI) provided with the electric cord to insure
it is operating correctly. When test button is pushed in, the
indicator light should go off. Reactivate by pushing the
reset button in. If indicator light goes on, the machine is
ready to use. If the GFCI does not function correctly, do
not use the machine.

Operating Instructions

Wear gloves provided with machine. Never grasp a
rotating cable with a rag or loose fitting cloth
glove that may become wrapped around the cable
causing serious injury.
Always wear eye protection to protect your eyes
against dirt and other foreign objects. Wear rubber
soled, non-slip shoes.
Be careful when cleaning drains where cleaning
compounds have been used. Avoid direct contact
with skin and eyes.
WARNING
posture in order to maintain proper balance (Figure 5).
Should an unexpected situation arise, this posture pro-
vides you with the opportunity to safely keep control of
the machine and cable.
• Be sure you can quickly remove your foot from the foot
switch.
• Hand must be on the cable to control its twisting action
when it hits an obstruction.
• Keep hands away from rotating drum and guide tube.
Do not reach into drum unless machine is unplugged.
Figure 5 – Proper Operating Position
Ridge Tool Company
WARNING
Always assume the correct operating
7