General Pipe Cleaners JM-1450, Operating Instructions Manual

Jet-Set JM-1450™  

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 applica-

tions.  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 to 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 deter-

gent cling and reduce dilution of detergent with an already wet sur-

face. 

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. Deter-
gents 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 deter-
gent solution. Be sure the end of the hose is at the bottom of the con-

tainer or bucket. Some models have adjustable valves to control the 
amount of detergent drawn through the hose. 
 

MAINTENANCE

Regular inspection is the key to preventing breakdowns and prolong-
ing the life of the equipment. Follow this simple procedure religiously. 

DAILY 

x

Check INLET FILTER for debris before each use. 

x

Check that the PUMP OIL LEVEL is within operating range on 
dipstick or sight glass. 

x

Check that the jet nozzles are not clogged or worn out. 

 
WEEKLY 

x

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 Non-
Detergent Motor Oil to full mark on dipstick or to dot on sight glass. 

7 

ACCESSORIES 

HANDY-REEL WITH FOOT PEDAL - Cat # HM-200-W 

(OPTIONAL) 

The Handy-Reel allows for remove 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 oper-
ates safely outside.  The Foot Pedal interrupts the flow of water be-
tween 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) 

DISCONNECT JETTER FROM POWER SOURCE     

BEFORE PERFORMING MAINTENANCE OR MAKING 

ANY ADJUSTMENTS. 

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.