10
Shark
Jetters
OPERATOR’S MANUAL
SJGDG-3016 & SJGDG-3020 • 8.914-327.0 • REV. 4/12a
®
Pulsation causes a pressure drop when it's engaged.
The pulse is most effective in a 1/8" hose. You'll note
less vibration with a 1/4" hose and almost none with a
3/8" hose. However 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 a hose around a
tight bend, switch to a smaller diameter hose.
Turn the pulse off before turning machine off.
Shut-Down Instructions
After drain cleaning or spray washing is completed,
run clear water through the system. Always leave ball
valve in open position when turning off engine. Reduce
engine to idle, turn off engine and then be sure to turn
off fuel valve. Turn off water supply and drain as much
water from pump as possible. Remove water supply
hose from inlet. If you are in a cold climate, see Freeze
Protection on page 12.
SHR-200 and SHR-300 Hose Reels
Use the SHR-200 or SHR-300 hose reels when clearing
inside drain lines with the gas jet in order to use the high
pressure jet without the danger of fumes in the building.
Position the reel at the drain site. Connect the hose from
the jet machine to the inlet on the reel. Select and attach
a nozzle to the hose on the reel. Put the hose 2 to 3 ft.
into the drain line. Open the ball valve on the reel. Follow
the start up procedures.
SCP-1 Foot Pedal (Optional)
The foot pedal is used with any jetter manufactured by
Shark
®
(see pages 5-6). 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 bypass mode. Do not leave pump in bypass for
more than a few minutes or the pump can be damaged.
(See Regulating Pressure Unloader).
The foot pedal may be hooked up 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, (8.918-201.0) be-
tween the outlet of the pedal and the swivel on the hose
reel. Some jetter models may need the added length of
the accessory hose on the inlet side of the pedal.
For remote hookup, 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 bushing 8.705-129.0 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.
Ice Blockages
High pressure water can be used to clear an ice
blockage. A 3000 PSI
(207 bar)
gas jet can clear a 4"
(102 mm)
line at an approximate rate of one foot per
minute. The smaller electric jet will take twice as long.
Ambient air temperature will effect these times. Use a
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.
Spray Wand
Follow the same procedures listed previously for safety,
setup, operation and maintenance. To operate the spray
wand, connect the high pressure hose and trigger to the
machine. Turn on the water supply, then squeeze the trig-
ger to purge air from the system. Continue to squeeze
trigger as you start the machine.
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 3 m)
distance from object to be cleaned.
Direct spray at close range can be powerful enough to
cause damage.
NOTE:
Typical industry standard stipulates you hold the
high pressure spray nozzle approximately 6-8" 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.
If you have the dual-lance wand you may draw detergents
through the spray wand in conjunction with the detergent
injector mounted on the machine. First set up the deter-
gent injector system (see Detergent Injector).
Then simply turn the knob on the wand counterclockwise
so that water is flowing through the wide spray nozzle.
To spray water only, turn the knob to the clockwise po-
sition so that the water flows through the narrow spray
nozzle.
The spray wand option with the other jets may also be
used to spray detergent. To do so, simply turn the nozzle
on the end of the wand counterclockwise. As the spray
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 and return to
high pressure.
