General Wire JM-1450-C User 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!

These instructions are intended to

familiarize all personnel with the safe operation

and maintenance procedures for the JM-1450.

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.

Do not spray flammable liquids. Risk
of explosion. Flammable liquids can cre­ate fumes which can ignite causing prop­erty damage or severe injury.

SAFETY SYMBOLS

This is the safety alert symbol. It is used
to alert you to potential personal injury

DANGER indicates a hazard with a high level of risk which, if not
avoided, will result in death or serious injury.

WARNING indicates a hazard with a medium level of risk which, if
not avoided, could result in death or serious injury.

hazards. Obey all safety messages that
follow this symbol to avoid possible
injury or death.

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

This product can expose you to chemicals including lead,
which is known to the State of California to cause cancer and
birth defects or other reproductive harm. For more information
go to www.P65Warnings.ca.gov.

CAUTION indicates a hazard with a low level of risk which, if not
avoided, will result in minor or moderate injury.

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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 equip­ment, 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

3

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

* Rotary Nozzles can be adapted to 1/8” and 3/8” hose using AD-3 or
AD-4 adapters.

-

JNRB-2

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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