4GENERAL'S JET SET TM
OPERATOR’S MANUAL
GENERAL'S JET SETTM J-1400 & J-1600 • 8.914-322.0 / 97-6115 • REVISED 4/08
11.
General Wire Spring Co. will not be liable for any chang-
es made to our standard machines or any components
not purchased from General Wire Spring Co.
12. Be certain all fittings are secured before using pres-
sure washer.
13. Never run pump dry.
14.
Inlet water supply must be cold and clean fresh water.
15. Do not allow children to operate the General's Jet
Set™at any time.
16. Protect from freezing.
17. When the machine is working, do not cover or place
in a closed space where ventilation is insufficient.
ASSEMBLY
Upon arrival, inspect the shipping crate for damages.
Uncrate and examine all parts. Note any damage to ma-
chine or components for claims against freight carrier.
Jets have antifreeze in the pump to protect it from freez-
ing conditions during shipment and storage. If machine
will be stored and operated in a cold climate, follow
Freeze Protection instructions on page 9.
PRE-OPERATION CHECK
Pump oil (SAE 30W non-detergent oil)
Cold clean fresh water supply (6 gpm • 5/8"
(15.875 mm) • 20 psi)
Hose, nozzle
Water filter (intact, non-restrictive)
SET-UP PROCEDURES
These 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 the operator, special con-
trols may be required for proper machine operation and
operator safety.
Locate equipment on a solid level area with slopes for
drainage. Avoid areas where water can be sprayed at
machine. Before using the jet, make sure there are no
impurities in the incoming water supply. Turn the water
source on for at least 15 seconds, to remove any pos-
sible debris in the water before connecting hose to water
inlet swivel.
The inlet screen located inside the filter should be
cleaned before each use. To clean the inlet screen,
unscrew cap beneath the filter, remove the screen and
rinse thoroughly with water. Then replace screen.
Connect one end of a garden hose (not included) to
the water faucet — water supply not to exceed 100 psi
(6.9 Bar) and the other end to the water inlet of the jet
machine. (See component identification drawings on next
pages.) Use heavy duty 3/4" hose of no more than 50 ft.
(15m) in length. If run without an adequate water sup-
ply, 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.
Maximum temperature from water source should not
exceed 140°F (60°C). Using water hotter than 140°F
(60°C) can cause damage to pump and void the war-
ranty. If jet is being used to clear ice blockages, see
instructions on page 8.
Remove oil plug on top of pump and replace with dipstick
supplied.
Hose Selection Guide
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.
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, at 2
GPM (.13L/sec) a 1/4" (6.350 mm) hose will lose 180
lbs. (12.4 bar) of pressure over 100 ft. (30.5m) of hose,
yet a 3/8" (9.925mm) hose will only lose 25 lbs. (1.7 bar)
of pressure over the same length and at the same flow
rate. At 4 GPM, a 3/8" hose will lose 90 lbs. (6.2 bar) of
pressure over a 100 ft.(30.5m) 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.
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" (203mm) in diameter. The
long length of the hose connectors and coupling together
can get caught in bends in the line.
Coupling two different size hoses can be done through
the spray wand trigger or foot pedal.
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.
The 3/8" (9.925 mm) and 1/4" (6.350 mm) hoses may
be attached to the fitting in the core of the hose reel
Hose Size (ID)* Pipe Size Typical Applications
3/8" or 5/16"
(9.925mm to
7.938mm)
4" to 8"
(102mm to 203mm)
Floor drains, septic lines, long
runs
1/4"
(6.350mm)
2" to 4"
(51mm to 102mm)
Kitchen sinks, laundry drains,
clean outs
1/8"
(3.175mm)
1-1/2" to 2"
(38mm to 51mm)
Small lines, bathroom sinks,
tight bends
*Inside Diameter
