General Pipe Cleaners JM-1450 Installation Manual
JM-1450™ Electric Jet
Operating Instructions
For 2” to 4” lines up to 150 ft. long
Your JM-1450 Jet-Set electric water jet
is designed to give you years of troublefree, profitable service. However, no machine is better than its operator.
Read, understand and follow all safety
warnings and instructions provided with
the product. Failure to follow the warnings
and instructions may result in electric
shock and/or serious injury. Save all warnings and instructions for future reference.
SAVE THESE INSTRUCTIONS!
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Jet-Set JM-1450™
WARNING! Read and understand all instructions.
Failure to follow all instructions listed below may result in
electric shock, fire and/or serious personal injury.
Replacement manuals are available upon request at no
charge, or may be downloaded from our website,
www.drainbrain.com. Instructional videos are available
for download on our website, and may be ordered. If you
have any questions or problems, please call General’s
customer service department at 412-771-6300.
SAVE THESE INSTRUCTIONS!
Electric shock resulting in death can
occur if you plug this machine into an
improperly wired outlet. If the ground
wire is electrified, you can be electrocuted by just touching the machine,
even when the power switch is off. A
ground fault circuit interrupter will not
protect you in this situation. Use a UL
approved tester to determine if the outlet
is safe.
Do not operate power tools in explosive atmospheres, such as in the
presence of flammable liquids, gases,
or dust. Power tools create sparks which
may ignite the dust of fumes.
These instructions are intended to
familiarize all personnel with the safe operation
and maintenance procedures for the JM-1450.
SAFETY SYMBOLS
This is the safety alert symbol. It is used
to alert you to potential personal injury
hazards. Obey all safety messages that
follow this symbol to avoid possible
injury or death.
DANGER indicates a hazard with a high level of risk which, if not
avoided, will result in death or serious injury.
Do not spray flammable liquids. Risk
of explosion. Flammable liquids can create fumes which can ignite causing property damage or severe injury.
Do not direct discharge stream at people. This equipment can produce a high
pressure stream of fluid that can pierce
skin and its underlying tissues, leading to
serious injury and possible amputation or
death.
Always wear safety glasses and rubber soled, non-slip shoes. High pres-
sure spray can cause paint chips or
other particles to become airborne
and fly at high speeds. Use of this
safety equipment may prevent serious
injury.
WARNING indicates a hazard with a medium level of risk which, if
not avoided, could result in death or serious injury.
CAUTION indicates a hazard with a low level of risk which, if not
avoided, will result in minor or moderate injury.
WARNING
This product contains lead, a chemical known to the State of
California to cause birth defects or other reproductive harm.
Wash your hands after handling this product.
WARNING
This product contains one or more chemicals known to the State
of California to cause cancer and birth defects or other reproductive harm.
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Jet-Set JM-1450™
GENERAL SAFETY RULES
WARNING
Read and understand all instructions. Failure to follow all instructions listed below may result in electric shock, fire, and/or
serious injury.
SAVE THESE INSTRUCTIONS!
WORK AREA SAFETY
1. All installations must comply with local codes. Contact your
electrician, plumber, utility company or the selling distributor for
specific details. To comply with the National Electrical code (NFPA
70) and provide additional protection from risk of electric shock,
the machines are equipped with a UL approved ground fault circuit
interrupter (GFCI) power cord.
2. Risk of explosion. Do not spray flammable liquids or operate
in an area where flammable or explosive materials are used
or stored. Power tools create sparks which may ignite dust and
fumes.
3. Keep bystanders, children, and visitors away while operating
machine. Distractions can cause you to lose control.
ELECTRICAL SAFETY
1. Grounded tools must be plugged into an outlet, properly installed and grounded in accordance with all codes and ordinances. Never remove the grounding prong or modify the
plug in any way. Do not use any adapter plugs. Check with a
qualified electrician if you are in doubt as to whether the outlet is properly grounded. If the tool should electrically malfunc-
tion or break down, grounding provides a low resistance path to
carry electricity away from the user.
2. Avoid body contact with grounded surfaces such as pipes,
radiators, ranges and refrigerators. There is an increased risk
of electric shock if your body is grounded.
3. Do not expose power tools to rain or wet conditions. Water
entering a power tool will increase the risk of electric shock.
4. When operating a power tool outside use an outdoor exten-
sion cord marked “W-A” or “W”. These cords are rated for outdoor use and reduce the risk of electric shock.
5. Test the Ground Fault Circuit Interrupter (GFCI) provided with
the power cord to insure it is operating correctly before operating machine. Machine must have a properly functioning ground
fault circuit interrupter on the power cord. GFCI reduces the risk of
electric shock.
6. Extension cords are not recommended unless they are
plugged into a Ground Fault Circuit Interrupter (GFCI) found
in circuit boxes or outlet receptacles. The GFCI on the ma-
chine power cord will not prevent electric shock from the extension
cords.
7. Only use proper three-wire extension cords in good condition
of no more than 50 ft. in length which have three-prong
grounding plugs and three-pole receptacles which accept the
tools plug. Use of damaged, inferior, or other extension cords will
not ground the tool, increases the risk of damage to the machine,
electric shock, bodily injury or death.
8. Keep all electric connections dry and off the ground. Reduces
the risk of electric shock.
9. DO NOT touch plugs or tools with wet hands. Reduces the risk
of electric shock.
GROUND FAULT CIRCUIT INTERRUPTER (GFCI)
Your machine is equipped with a ground fault circuit interrupter, which
protects you against shock if a short circuit should occur. Check that
receptacle is properly grounded. Test the GFCI before each use.
1. Plug into 120-volt receptacle.
2. Push test button. Indicator light will go out and power to machine
should cut off.
3. If light does not go out when test button is pushed, DO NOT USE
THE MACHINE until proper repairs can be made.
4. To restore power after test, push reset button. With the reset button depressed, if the machine doesn't start, stops while running, or
if the operator experiences a mild shock, DO NOT USE THE MA-
CHINE! Tag the machine out of service and take it to a motor
repair center or return it to the factory for repairs.
PERSONAL SAFETY
1. High pressure developed by jet machines will cause personal
injury. Water spray should not be pointed at any person. High
pressure spray can result in serious injury. If fluid seems to have
penetrated the skin, seek emergency medical attention at once.
2. Grip jet hose or spray wand securely with both hands before
starting the machine. Failure to do so could result in injury from a
whipping hose or wand.
3. Always wear eye protection and rubber gloves. Safety equip-
ment, eye safety devices, non-skid safety shoes and protective
clothing must be worn when using this equipment.
4. Stay alert, watch what you are doing and use common sense
when operating a power tool. Do not use tool while tired or
under the influence of drugs, alcohol, or medication. A mo-
ment of inattention while operating power tools may result in serious personal injury.
5. Dress properly. Do not wear loose clothing or jewelry. Con-
tain long hair. Keep your hair, clothing, and gloves away from
moving parts. Loose clothes, jewelry, or long hair can be caught
in moving parts.
SERVICE
1. Tool service must only be performed by qualified service
personnel. Service or maintenance performed by untrained per-
sonnel could result in injury and damage to the equipment.
2. When servicing tool, use only identical replacement parts.
Follow instructions in maintenance section of this manual.
Use of unauthorized parts or failure to follow maintenance instructions may cause injury or damage to equipment.
JET SAFETY
1. Do not operate jet above rate pressure or above 140 degrees
(rated water temperature). Operating jet above rate specifica-
tions risks damage to the pump and related components, and will
void the warranty.
2. Do not operate jet with the output valve in the off position for
extensive periods of time. This will cause the water to overheat
and damage the pump.
3. Never run pump without water in it. Operating the machine
without water will cause the pump to fail and void the warranty.
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Jet-Set JM-1450™
4. Check for worn hose and components before each use.
Check that all fittings are secured before using jet. Worn or
lose fittings can cause damage to the machine and injure the operator.
5. Protect machine and pump from freezing. Storing or operating
the jet in temperatures below freezing can damage pump, hose
and other jet components. Store unit indoors or protect with antifreeze when not in use.
6. General Wire Spring Co. will not be liable for any changes
made to our standard machines or any components not purchased from General Wire Spring Co.
JM-1450 SPECIFICATIONS
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2
1
12
10
11
13
1. Foot Pedal (optional)
2. GFCI
3. Vibra-Pulse Control Valve
4. Hose Reel
5. Tool Box
6. Motor
7. Pressure Gauge
8. Anti-Siphon Valve
9. Pump
10. Unloader
11. Inlet Filter
12. Pressure Control Valve
13. Drain
REMOVABLE HOSE REEL
The JM-1450 features a removable hose reel. It easily detaches in
seconds to make the machine more compact to fit in small spaces in
your truck, or crawl spaces under a building, or to more easily carry
the machine up to a roof to clear lines via the roof vents. To remove
reel, unscrew twist connect at the output valve, then simply pull the
knob at the base of the hose reel, then lift the reel. To reattach reel,
align the slot in the base of the reel with the tab on the support
bracket. Then seat reel into bracket and allow the knob to snap back
into place.
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SLIDE OUT HANDLE
A convenient slide-out handle
makes the JM-1450 really portable. Lift the knob and extend
the handle, then roll the machine to and from the job on the
8” wheels. Lift the knob to slide
the handle back into place.
JET HOSE
1. When selecting hose size, consider that pressure is lost as the
water travels down the length of the hose. As the length increases,
the pressure decreases. In addition, the smaller the diameter of
the hose, the greater the loss of pressure per foot will be. As an
example, a 2 GPM a 1/4” hose will lose 180 lbs. of pressure over
100 ft. of hose, yet a 3/8” hose will only lose 25 lbs. of pressure
over the same length and at the same flow rate. At 4 GPM, a 3/8”
hose will lose 90 lbs. of pressure over a 100 ft. length. The gauge
reflects pressure from the pump only, not pressure at the end of
the hose. It is important to select the largest possible hose size in
order to have as much pressure as possible at the end of the
hose.
2. Hoses of the same diameter may be coupled together using the
CC-1 coupling, but it is not recommended for use in lines smaller
than 8” in diameter. The long length of the hose connectors and
coupling together can get caught in bends in the line. It is not advisable to have two different hose sizes coupled in a drain line.
There is a tremendous loss of pressure when combined, aside
from the difficulty of getting around bends.
3. The 3/8” and 1/4” hoses may be attached to the fitting in the core
of the hose reel using the swivel at one end of the hose. The 1/8”
accessory hose may also be attached directly to the output valve
by using the twist connect supplied on the hose.
HOSE SELECTION GUIDE
Hose Size (ID*) Pipe Size Typical Applications
1/8”
(3.175mm)
1/4”
(6.350mm)
3/8”
(9.925mm)
* Inside Diameter
1-1/2” - 2”
(38mm - 51mm)
2” - 4”
(51mm - 102mm)
4” - 8”
(102mm - 230mm)
Small lines, bathroom
sinks, tight bends
Kitchen sinks, laundry
drains, clean outs
Floor drains, septic
lines, long runs
JET NOZZLES
1. A variety of jet nozzles are available for drain cleaning. Each has a
different spray pattern and purpose. Some nozzles may have an
orifice in the front to cut through the stoppage. All will have holes
in the back to drive the hose down the line and clean the walls of
the pipe. A tight spray pattern (15°) has more driving power for
long runs, a wide spray pattern (40°) does a better job of cutting
the grease off of the walls of the pipe. A combination of nozzles
may be required to clear a line. Always turn off the machine and
turn off output valve before changing nozzles.
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Jet-Set JM-1450™
2. Make sure the nozzle you are using matches the pump size. A
3000 psi pump requires a different nozzle orifice than a 1500 psi
pump. Mismatching nozzles with pump size will either cause too
little pressure, which may not clear the drain, or too much pressure, which may damage the machine.
3. Check nozzles before and after each use for clogged holes which
can cause pressure to increase to dangerously high levels and
damage the pump. A clogged hole can be cleared by simply using
the NCT Nozzle Cleaning Tool.
4. Use the nozzle selection guide to determine what nozzle you will
need for various applications. Examples: If a nozzle is stamped
#12, it is a JN-12, drilled for 1.7 GPM @ 1500 PSI with several
15° rear jets and one forward cutting jet.
Powerful penetrating nozzle cuts
through grease and ice.
Wide spray flushing nozzle cleans
inside of pipe thoroughly.
SPECIALTY NOZZLES
Spring leader nozzles and down head
nozzles are special nozzles to help
hose travel through the pipe when
there are a lot of Tee’s, curves, and
bends.
NOZZLE SELECTION GUIDE
HOSE SIZE 1/8” 1/4” 3/8”
CAT # CAT # CAT #
15° Rear Jets w/No Forward Jet JN-1 JN-11 JN-21
15° Rear Jets w/One Forward Jet JN-2 JN-12 JN-22
30° Rear Jets w/No Forward Jet JN-3 - -
40° Rear Jets w/No Forward Jet - JN-14 JN-24
Spring Leader JNSL-1 JNSL-2 JNSL-3
Down Head Nozzle JNDH-1 - -
Rotary Nozzle* (Optional) - JNRA-2
JNRB-2
* Rotary Nozzles can be adapted to 1/8” and 3/8” hose using AD-3 or
AD-4 adapters.
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JET ASSEMBLY
Upon arrival, inspect the shipping crate for damages. Uncrate and
examine all parts. Note any damage to machine or components
for claims against freight carrier.
Jet must be stored and operated in horizontal position. Never
store in upright position or oil may leak from pump. If low, fill with
SAE 30 weight non-detergent oil.
Jet machines are meant to be used at or near the working area
and under operator supervision. If machine must be located out of
sight of operator, special controls may be required for proper machine operation and operator safety
ROTARY NOZZLES
Rotary nozzles are useful as a finishing
tool. After the line has been cleared,
you may switch to the rotary nozzle to
more thoroughly clean the walls of the
pipe. Use these nozzles only in a predominantly straight run since they are
longer than regular nozzles and may
get caught in tight bends.
OPERATION
SET-UP
1. Locate the jet near the drain line on a level surface with drainage.
Tip: Ideally, the drain line should be cleared from the downstream
side, that is, from the street back toward the house. If you must
clear the line from the drain toward the street, you may need to
use a siphon pump to clear away excess water.
2. Check the oil level in the pump. If low, fill with SAE 30 weight nondetergent oil.
3. Check the inlet filter to make sure it’s clean before each use. To
clean, unscrew filter cap, remove the screen and rinse thoroughly
with water. Then, replace screen.
4. Check that incoming water supply is clean and free of debris.
Turn the water source on for at least 15 seconds to remove any
possible debris in the water before connecting hose to water inlet.
5. Connect one end of a water supply hose (not included) to the water supply and the other end to the water inlet of the jet machine.Water supply must be a minimum of 20 psi and not to exceed 100
psi. Caution: Water temperature must not exceed 140 degrees or
damage to the pump can occur. Use only heavy duty 3/4” hose of
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Jet-Set JM-1450™
no more than 50 ft. in length. If run without an adequate water
supply, the pump will cavitate. Cavitation causes the pump to vibrate, 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 attaching the nozzle.
OPERATION
NEVER POINT THE END OF THE JET HOSE AT A
PERSON WHILE OPERATING.
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 flowing.
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 continuously, 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.
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.
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.
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 temperature 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 freezing 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. Barring 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.
ADJUSTING PRESSURE UNLOADER
The machine is equipped with a regulating pressure unloader to prevent 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 temperatures will damage the pump and void the warranty.
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Jet-Set JM-1450™
If you are operating the electric jet with limited amperage available,
you can reduce the amp draw of the machine by turning down the
unloader. By turning the pressure down to 1000 psi, you can reduce
the amp draw to less than 10 amps. To adjust the unloader, loosen
the lock nut and turn the knob counter-clockwise to decrease pressure
and clockwise to increase pressure. Caution: Do not over-tighten
unloader. Tighten lock nut after adjustments are made.
ACCESSORIES
HANDY-REEL WITH FOOT PEDAL - Cat # HM-200-W
(OPTIONAL)
The Handy-Reel allows for remote application of the jet. The jet can
be positioned at ground level, while the Handy-Reel can be carried up
on a roof to clear vents and stacks. With the help of the Handy-Reel,
gas jets can be used for indoor applications while the machine operates safely outside. The Foot Pedal interrupts the flow of water between the pump and the nozzle while leaving both hands free to guide
the hose. Position the Handy-Reel at the drain site. Connect the jet
machine to the inlet on the Foot Pedal. Select and attach nozzle to the
hose on the reel. Put the hose 2 to 3 ft. into the drain line. Follow the
start-up procedures.
FOOT PEDAL ONLY - Cat # FM-1 (OPTIONAL)
The Foot Pedal can be used with any jet manufactured by General. It
interrupts the flow of water between the pump and the nozzle while
leaving both hands free to guide the hose. The pump will continue to
run in by-pass mode. Do not leave pump in by-pass for more than a
few minutes or the pump can be damaged. (See Pressure Unloader)
The Foot Pedal may be connected either at the machine or remotely
at the drain site. To use the foot pedal at the machine, remove the
hose going to the swivel on the hose reel and attach it to the inlet side
of the Foot Pedal. Then, connect the accessory hose (available in 6
ft., 25 ft., or 50 ft. lengths) between the outlet of the pedal and the
swivel on the hose reel. Some jet models may need the added length
of the accessory hose on the inlet side of the pedal.
For remote operation, pull the hose from the hose reel to the drain
site. Attach the hose to the inlet of the pedal. The pedal is designed
for 3/8” hose fittings. If using a 1/4” hose, use the AD-1 adapter, as
well. Then, attach the smaller hose (1/8” or 1/4”) to the outlet side of
the pedal. Use the smaller hose to clear the drain line.
SPRAY WAND - Cat # SWA-1500 (OPTIONAL)
USE CAUTION WHEN PRESSURE WASHING. WEAR
GOGGLES AND RUBBER GLOVES AND BOOTS.
ANALYZE ANGLE OF SPRAY AND ANTICIPATE
ANGLE OF BACK SPLASH. DO NOT POINT SPRAY
AT ANYONE, INCLUDING YOURSELF. DO NOT PUT
YOUR HAND IN FRONT OF WATER SPRAY. IT CAN
PENETRATE THE SKIN AND CAUSE A NEED FOR
AMPUTATION. IT IS BEST TO START AT A 45°
ANGLE AT A 7 TO 10 FT. (2 TO 3M) DISTANCE FROM
OBJECT TO BE CLEANED. DIRECT SPRAY AT
CLOSE RANGE CAN BE POWERFUL ENOUGH TO
CAUSE DAMAGE.
The Spray Wand can be used to clean your truck or other applications. Caution: Never clean the machine with its own spray. Follow
the same procedures listed previously for safety, set-up, operation,
and maintenance. To operate the spray wand with your water jet,
disconnect the twist connect at the output valve. Then, connect
the spray wand hose, trigger and wand at the output valve. Turn on
the water supply, then squeeze the trigger to purge air from the
system. Continue to squeeze trigger as you turn on the machine.
Hold the high pressure spray nozzle approximately 6 – 8 ft. from the
surface to be cleaned. When cleaning with a detergent, apply from
bottom up with an even left to right movement. Rinse from top down
with a similar motion. This will help reduce potential streaking. Always
apply soap to a dry surface. This will enhance penetration and detergent cling and reduce dilution of detergent with an already wet surface.
You may draw soap through the spray wand in conjunction with the
optional chemical injector. First set up the Chemical injector system
(see Chemical Injector). Then, simply turn the nozzle barrel on the
end of the wand counter-clockwise. As the spray pattern widens, more
of the detergent will be drawn through the wand. Turn the nozzle
clockwise to reduce the detergent flow and narrow the water spray
pattern to return to high pressure.
CHEMICAL INJECTOR – Cat # CMA-1 (Optional)
To use the chemical injector, disconnect the Twist Connect at the
output valve on the jet. Then thread the Chemical Injector on to it. The
Spray Wand then threads onto the free end of the Chemical Injector.
Do not attach Chemical Injector to the inlet side of the pump. Detergents can damage pump.
To use the detergent injector, attach one end of the siphon hose to
the barbed fitting on the injector and put the filter end into the detergent solution. Be sure the end of the hose is at the bottom of the container or bucket. Some models have adjustable valves to control the
amount of detergent drawn through the hose.
MAINTENANCE
DISCONNECT JETTER FROM POWER SOURCE
BEFORE PERFORMING MAINTENANCE OR MAKING
ANY ADJUSTMENTS.
Regular inspection is the key to preventing breakdowns and prolonging the life of the equipment. Follow this simple procedure religiously.
DAILY
Check INLET FILTER for debris before each use.
Check that the PUMP OIL LEVEL is within operating range on
dipstick or sight glass.
Check that the jet nozzles are not clogged or worn out.
WEEKLY
Check the pressure hose for wear and damage. . Damaged hose
can be repaired at a local service dealer of by your equipment
dealer.
Pump Crankcase Oil Change: Service after the 1st month, or after
20 hours. Then service every year or 500 hours. Use SAE 30W NonDetergent Motor Oil to full mark on dipstick or to dot on sight glass.
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Jet-Set JM-1450™
TROUBLE SHOOTING GUIDE
Problem Probable Cause Solution
Low pressure. Worn, clogged, or oversized nozzle. Clean or replace worn nozzle. Check nozzle size.
Clogged water inlet strainer. Clean or replace strainers.
Rough operation with loss of
pressure.
Water leakage at intake
manifold or crankcase.
Inadequate water supply.
Make certain water supply valve is on fully. Make certain water
supply hose is at least 3/4” in diameter, in good condition, with
no kinks or damage, and is not longer than 50 ft.
Worn or damaged piston cups. Replace piston cups.
Worn or damaged inlet or discharge valve. Replace worn valve poppets or valve springs.
Dirt or foreign particles in valve assembly. Remove any dirt particles.
Air leak in inlet plumbing. Locate air leak. Re-seal connection or replace damaged port.
Restricted inlet plumbing or air leak in inlet
plumbing.
Damaged piston, cup or pump valve.
Repair clogged inlet fittings. Check supply hose and ensure
adequate water supply.
Replace any damaged pump parts and clean out any foreign
particles.
Clogged nozzle. Clean or replace nozzle.
Worn manifold seals, piston or o-rings, or
condensation inside crankcase.
Inadequate water supply to pump, creating a
Replace seals, sleeves or o-rings. Change oil at regular intervals.
Ensure adequate tap water supply. Clear inlet filter.
vacuum lock.
Oil leaks.
Worn pistons and/or leaking crank seals,
Replace seals, sleeves or o-rings.
crankcase cover seal, or drain plugs.
Excessive wear. Worn or loose bearings.
Replace bearings. Check bearing seals, spacers and retainers.
Replace any worn parts.
Short pump life.
Scored cylinders from pumping acids.
Replace cylinders. Do no pump acid solutions. For acid application, ask your dealer for a pump saver injector.
Abrasive particles in fluid being pumped.
Replace water and detergent strainers if damaged or missing.
Install additional filter if fine abrasives are still evident.
Operator(s) running pump without water
Do not allow jetter to be run without proper water supply.
supply.
Hot water in pump.
Do not run in bypass for more than 5 minutes. Do not let water
supply exceed 140°F (60°C).
Irregular spray pattern. Worn or partially clogged nozzle. Clean or replace nozzle.
8
TROUBLE SHOOTING GUIDE continued
Problem Probable Cause Solution
Jet-Set JM-1450™
Washer fails to draw detergent.
Detergent solution too weak. Clogged detergent strainer. Clean or replace strainer.
Detergent solution too concentrated.
Detergent in rinse cycle.
Detergent metering valve closed, or
valve clogged or defective.
Back pressure in hose (when using
additional lengths of pressure hose).
Back pressure in pressure hose (when
using dual lance wand).
Suction tube not below liquid surface.
Clogged or damaged suction strainer. Clean or replace strainer.
Air leak in detergent suction tube or
inlet plumbing.
Original detergent too concentrated. Dilute product as necessary to achieve proper concentration.
Dual lance wand or adjustable nozzle
holder in open position or chemical
metering valve open.
Open detergent metering valve, following procedure in operating
instructions.
Contact dealer for proper injector size when adding lengths of
hose.
Use proper size flood nozzle in dual lance wand (refer to parts
breakdown).
Completely submerge suction tube and strainer in detergent
solution.
Find air leak and clean or replace parts as necessary.
Close dual lance wand adjustable lance holder to achieve high
pressure. Close detergent metering valve.
Worn or defective internal check valve. Repair or replace check valve or injector parts as necessary.
Dilution of detergent concentrate
during cycle.
Unloader cycles. Fitting leaking downstream. Tighten/replace fitting.
Fluid leaking from body. O-ring worn or cut. Replace part as necessary.
Unloader will not come to pressure.
Defective check valve in detergent
tank.
Piston or valve spring broken or worn. Replace parts as necessary.
Clogged nozzle. Clean or replace nozzle.
Foreign particle in valve. Clean or replace valve.
Nozzle worn or wrong size. Replace part as necessary.
Piston or valve worn. Replace part as necessary.
Adjusting nut turned completely into
unloader.
Clogged nozzle. Clean or replace nozzle.
Replace parts as necessary.
Back off adjusting nut. Extreme pressure spikes.
See pages 30 - 31 for Parts List and Schematic Diagram.
9
Jet-Set JM-1450™
10
Jet électrique JM-1450™
Mode d’emploi
Pour les conduites de 51 à 102 mm (2 à 4 pouces) jusqu’à 46 m (150 pieds) de long
Le jet d'eau électrique Jet-Set JM-1450 est
conçu pour fournir de nombreuses années
d'utilisation bénéfique, sans problème. Toutefois, aucune machine n'est meilleure que son
opérateur.
Veuillez lire, bien comprendre et suivre tous
les avertissements et instructions de sécurité
fournis avec le produit. Si les avertissements et
instructions ne sont pas respectés, cela peut
conduire à l'électrocution et/ou des blessures
graves. Conservez tous les avertissements et
instructions pour servir de référence future.
CONSERVEZ CES INSTRUCTIONS !
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