General Pipe Cleaners JM-1450, Operating Instructions Manual

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Jet-Set JM-1450™
6
ADJUSTING PRESSURE UNLOADER
The machine is equipped with a regulating pressure unloader to pre-
vent pressure overload in the event that the nozzle is clogged or the
output valve or spray wand trigger is off. When the machine is in the
bypass mode, the pump will continue to run. However, running in
bypass mode for extended periods will cause damage to the pump -
no more than 5 minutes with the J-1450 pump. Excessive tempera-
tures will damage the pump and void the warranty.
OPERATION
1. Select the correct jet hose size to match the line size you are
clearing. (See Hose Section Guide) Check all hoses for wear and
damage. Tighten all connections securely.
2. Select the correct nozzle and attach to the end of the hose. (See
Nozzle Selection Guide) Note: If you are using a new jet hose, run
water through it to flush out debris before connecting a nozzle.
3. Insert the jet hose 2 to 3 feet into the drain line before turning on
machine.
4. Turn on the water supply valve fully to allow for maximum flow.
5. Turn on the jet output valve and allow water to run through the
supply hose, jet, and jet hose to purge air from system before
turning on the machine.
6. Make sure that the output valve is turned on and the water is flow-
ing.
7. Plug in GFCI power cord to proper receptacle and voltage.
8. While holding onto hose firmly to prevent hose from whipping
around, turn the jet motor switch on.
9. Guide the jet hose into the drain line. Do not feed the hose con-
tinuously, but rather, move the hose forward and back to allow the
pressure to break up the stoppage and the water flow to flush it
away. If you are clearing the line from the upstream side, this may
take more time. Clearing the line from the downstream side allows
debris to flow away easily.
10. It is often helpful to turn on the Vibra-pulse valve. The vibration
generated helps to hose overcome the friction in the line and glide
farther down the line. See Vibra-pulse section.
11. When the jet hose encounters a bend, it’s advance will usually
slow or stop. The hose has a slight bend in it from the hose reel. It
may be necessary to manually feed or rotate the jet hose to work it
around the bends. If the hose won’t advance, put the hose in a
loop and rotate it a quarter to half turn so the curve of the hose
matches the pipe. It may also be necessary to pull the hose back
six inches and snap it forward to hop across a gap in the pipe
fitting.
12. Once you reach the stoppage, pass the hose back and forth
through the section several times to ensure the line is thoroughly
cleared. You may also switch nozzles to a wide spray or rotary
(optional) nozzle for wall to wall cleaning action.
SPECIAL APPLICATIONS
ICE BLOCKAGES
High pressure water can be used to clear an ice blockage. A 3000 psi
gas jet can clear a 4” line at an approximate rate of one foot per min-
ute. The smaller, electric jet will take twice as long. Ambient air tem-
perature will effect these times. Use a 15° nozzle with a forward jet.
DO NOT allow the incoming water supply to exceed 140°F (60°C) or
it could cause damage to the pump. Remember to follow the cold
weather precautions found in the Freeze Protection section.
FREEZE PROTECTION
To protect your machine from severe damage caused by water freez-
ing inside the components, it is important to winterize it whenever it is
subjected to freezing temperatures.
The best way to protect the system is to keep it out of the cold. Bar-
ring that, the next best way is to flush the system with anti-freeze. To
do so, simply attach a short garden hose (not to exceed four feet) to
inlet on the pump and put other end into the anti-freeze container. Be
sure to remove the nozzle from the hose. Turn the machine on to
draw anti-freeze into the system. When anti-freeze flows out of the
end of the hose, turn the machine off. Connect high pressure hose
and trigger, and follow above procedure. Cycle trigger on/off so that
the anti-freeze will flow into unloader and injector section of machine.
When preparing to operate equipment for the next job, remove the
anti-freeze. To do so, reconnect water source, turn pump on and
direct flow of anti-freeze back into container. Be careful not to dilute
anti-freeze with incoming water supply. Anti-freeze, if kept relatively
undiluted, can be used again and again.
Hoses can also be protected from freezing by using compressed air to
clear them of residual water. Remember to remove nozzle from jet
hose and hold trigger of spray wand in open position.
SHUT DOWN INSTRUCTIONS
After drain cleaning or spray washing is completed, run clear water
through the system. Always leave the output valve in the on position
when turning off motor. Turn off water supply and drain as much water
from the pump as possible. Remove water supply hose from inlet. If
you are in a cold climate, see Freeze Protection section.
no more than 50 ft. in length. If run without an adequate water
supply, the pump will cavitate. Cavitation causes the pump to vi-
brate, causing damage to the pump. Note: Lack of water supply
can lead to seal damage, causing a loss of pressure and will void
the warranty to the pump.
6. Maximum temperature from the water source should not exceed
140°F (60°C). Using water hotter than 140°F (60°C) can cause
damage to the pump and void the warranty. If jet is being used to
clear ice blockages, see instructions on Ice Blockages.
7. Select the proper hose diameter for the line to be cleaned. When
using new hose, run water through it to clean it out before attach-
ing the nozzle.
VIBRA-PULSE
®
Pulsation makes the hose vibrate, helping the jet go longer distances
and around tight bends easier. The pulse control valve is located on
the front of the pump. Simply turn the valve on to engage the
pulse. Vibra-pulse is most effective in a 1/8” hose. You’ll notice less
vibration with a 1/4” hose, and almost none with a 3/8” hose. How-
ever, the pulse is still effective, causing the water to burst from the
nozzle hundreds of times per second. If you are still having difficulty
getting hose around a tight bend, switch to a smaller diameter hose.
NEVER POINT THE END OF THE JET HOSE AT A
PERSON WHILE OPERATING.