Using The Pulse Mode; Using Water Jetter Machine As A Pressure Washer - RIDGID KJ-2200 User Manual

Watch the drain water level. If the water level gets too
high, you may need to turn the jetter OFF and allow the
water to drain prior to continuing. Jetting when the line is
full of water is less effective than when the line is empty.
Do not allow the jetter to run for extended period of time
with the foot valve OFF. When the foot valve is OFF,
water recirculates in the pump and cause the water to heat
up. This can cause the pump thermal overload to open.
Once the nozzle is the desired distance into the drain,
slowly (1 ft /minute for heavy drain accumulations) pull the
nozzle back through the drain. Use one hand to control the
hose and the other to wind the hose onto the reel. Watch
as the nozzle gets closer to the drain opening that the noz-
zle does not come out of the drain while water is flowing.
This could allow the hose to whip around and cause
striking and high pressure fluid injuries. Always control the
hose. Look for the mark on the hose near the nozzle.
Release the foot valve to shut off the water flow.
Turn OFF the engine as directed in the engine manual,
and depress the foot valve to release the system pressure.
Never leave the system pressurized. If needed, change
the nozzle and continue cleaning following the above
process. Several passes through a line are recommended
for complete cleaning.
When finished, with the jetter shut off, remove the nozzle
and open inlet supply valve to flush out the pump and
hose. If using the jetter in cold weather conditions, im-
mediately drain the water from the system to help prevent
damage from freezing. See Machine Storage for infor-
mation on freeze protecting.

Using the Pulse Mode

When manipulating the hose is not enough to pass through
a direction change or obstruction, the pulse mode should
be used. The pulse mode induces large variation in water
pressure that causes the hose to vibrate, easing hose
advancement.
1. Turn the pulse actuator lever clockwise to the "Pulse"
position. In pulse mode, the pressure gauge will read
less than full pressure. This is normal.
KJ-2200/KJ-3100 Water Jetting Machines
PRESSURE
Figure 16 – Pulse Actuator Lever Position
2. If needed, use sharp thrusts of the hose and hose ro-
tation to help the nozzle through the obstruction.
3. Once through the obstruction, turn the pulse actuator
lever counter-clockwise to the "Pressure" position.
Do not leave the jetter in pulse mode any longer
than needed to pass through an obstruction. Exces -
sive use of the pulse feature can cause premature
wear on hoses and system.
Using Water Jetter Machine as a
Pressure Washer
The RIDGID water jetting machines can also be used as
pressure washers with the addition of the pressure wash
package. Use as a pressure washer is similar to use as a
jetter, and those instructions should be used in conjunction
with the following.
1. Locate an appropriate work area.
2. Make sure all equipment has been properly inspected.
3. Attach the wash wand to the wash wand hose. Al -
ways use hose with a pressure rating at least as
high as the jetter pressure rating. Use a thread sealant
to prevent leaks.
4. Attach hose to the jetter outlet. Make sure the ends of
the hose are securely connected to prevent them
from coming off under pressure.
5. Connect an appropriate water supply, as discussed
earlier, to the jetter.
6. Open the inlet supply valve and squeeze the wash
wand trigger to allow water to flow and purge any air
from the system. Never start the engine without the
water supply turned ON. This can damage the pump.
PULSE
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