Jetwave Scorpion G2 User manual
WATER JETTING/DRAIN CLEANING MACHINE
V1.0 - 2020
SCORPION G2 MANUAL - WATER JETTER/DRAIN CLEANER
®
Record Serial Number below and retain product serial number which is
located on nameplate.
UNIT SERIAL NO.
ENGINE SERIAL NO.
PURCHASE DATE
Cold Water Petrol Driven
WARNING!
Read this Operator’s Manual
carefully before using
this machine. Failure to
understand and follow the
contents of this manual may
result in electrical shock,
re and/or serious personal
injury.
READ CAREFULLY
SCORPION G2 MANUAL - WATER JETTER/DRAIN CLEANER
2
Table of Contents
Safety Symbols
General Power Tool Safety Warnings
Work Area Safety
Electrical Safety
Personal Safety
Tool Use And Care
Service
Water Jetter Safety
Description, Specications And Standard Equipment
Description
Specications
Standard Equipment
Machine Assembly
Engine Oil
Pump/Gearbox Oil
Pre-Operation Inspection
Machine and Work Area Set-Up
Water Supply
Drain Preparation
Hose Set-Up
Jetter Hose Selection Chart
Jetter Nozzle Selection Chart
Operating Instructions
Jetting the Drain
Draining Water from System
Using Water Jetter Machine as a Pressure Washer
Pressure Washer Operation
Hose Reel Brake Adjustment
Transportation and Storage
Maintenance Instructions
Cleaning
Engine
Battery
Pump Lubrication/Maintenance
Gearbox Lubrication
Preparing Pump for Cold Weather Storage
Optional Equipment
Machine Storage
Service And Repair
Disposal
Troubleshooting
Maintenance Log
*Original Instructions - English
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SCORPION G2 MANUAL - WATER JETTER/DRAIN CLEANER
Safety Symbols
In this operator’s manual and on the product, safety symbols and signal words are used to communicate important safety
information. This section is provided to improve understanding of these signal words and 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.
indicates a hazardous situation which, if not avoided, will result in death or serious injury.
indicates a hazardous situation which, if not avoided, could result in death or serious injury.
indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.
indicates information that relates to the protection NOTICE of property.
This symbol means read the operator’s manual carefully before using the equipment to reduce the risk of injury.
The operator’s manual contains important information on the safe and proper operation of the equipment.
This symbol means always wear safety glasses with side shields or goggles when handling or using this
equipment to reduce the risk of eye injury.
This symbol indicates the risk of high pressure water directed at body parts, causing skin puncture and injection
injuries.
This symbol indicates the risk of the jetter hose whipping, and causing striking or injection injuries.
This symbol indicates the risk of breathing carbon monoxide and causing nausea, fainting or death.
This symbol indicates the risk of re and explosion from gasoline or other sources causing burns and other injury.
General Safety Rules
WARNING
Read and understand all instructions. Failure to
follow all instructions listed below may result in
electric shock, re, and/or serious injury.
SAVE THESE INSTRUCTIONS!
Work Area Safety
• Keep work area clean and well lit. Cluttered benches
and dark areas invite accidents.
• Do not operate power tools in explosive atmospheres,
such as in the presence of ammable liquids, gases, or
dust. Power tools create sparks which may ignite the
dust or fumes.
• Keep bystanders, children, and visitors away while
operating a power tool. Distractions can cause you to
lose control.
Electrical Safety
• Avoid body contact with grounded surfaces such as
pipes, radiators, ranges and refrigerators. There is
an increased risk of electrical shock if your body is
grounded.
Personal Safety
• Stay alert, watch what you are doing and use common
sense when operating a power tool. Do not use a tool
while you are tired or under the inuence of drugs,
alcohol, or medication. A moment of inattention while
operating power tools may result in serious personal
injury.
• Dress properly. Do not wear loose clothing or jewelry.
• Contain long hair. Keep your hair, clothing and gloves
away from moving parts. Loose clothes, jewelry, or
long hair can be caught in moving parts.
• Do not overreach. Keep proper footing and balance
at all times. This enables better control of the tool in
unexpected situations.
• Use safety equipment. Always wear eye protection.
• Dust mask, non-skid safety shoes, hard hat, or hearing
protection must be used for appropriate conditions will
reduce personal injuries.
Tool use And Care
• Do not force the tool. Use the correct tool for your
application. The correct tool will do the job better and
safer at the rate for which it is designed.
• Do not use the power tool if the switch does not turn it
ON and OFF. Any power tool that cannot be controlled
with the switch is dangerous and must be repaired.
• Store idle tools out of the reach of children and other
untrained persons. Tools are dangerous in the hands of
untrained users.
• Maintain tools with care. Keep cutting tools sharp and
DANGER
WARNING
CAUTION
NOTICE
SCORPION G2 MANUAL - WATER JETTER/DRAIN CLEANER
4
clean. Properly maintained tools with sharp cutting
edges are less likely to bind and are easier to control.
• Check for misalignment or binding of moving parts,
breakage of parts and any other condition that may
affect the tool’s operation. If damaged, have the tool
serviced before using. Many accidents are caused by
poorly maintained tools.
Use only accessories that are recommended by the
manufacturer for your model. Accessories that may be
suitable for one tool, may become hazardous when used
on another tool.
Service
• Tool service must be performed only by qualied repair
personnel. Service or maintenance performed by
unqualied personnel could result in a risk of injury.
• When servicing a tool, use only identical replacement
parts. Follow instructions in the Maintenance section
of this manual. Use of unauthorized parts or failure to
follow Maintenance Instructions may create a risk of
electrical shock or injury.
WATER JETTER SAFETY
WARNING
This section contains important safety information
that is specic to this tool.
Read these precautions carefully before using
this drain Cleaning Machine to re duce the risk of
electrical shock or other serious injury.
SAVE ALL WARNINGS AND INSTRUCTIONS
FOR FUTURE REFERENCE!
Keep this manual with machine for use by the operator.
• Never operate the jetter with the hose end outside of
the drain. Hose can whip, causing striking injuries and
spray can penetrate skin and cause serious injury.
• High pressure water can inject under skin resulting in
serious injury including amputation. Do not direct spray
at people or animals.
• Do not operate jetter above the 5080 psi pressure
rating or 60°C (inlet water temperature). This increases
the risk of injury, including burns, and damage to the
jetter.
• One person must control the jetting process and
water ow. If the jetter hose comes out of the drain,
the operator must be able to shut off the water ow
to reduce the risk of the jetter hose whipping, causing
striking and high pressure injection injuries.
• Always use appropriate personal protective equipment
while handling and using drain cleaning equipment.
Drain may contain chemicals, bacteria and other
substances that may be toxic, infectious, cause
burns or other issues. Appropriate personal protective
equipment (PPE) includes safety glasses and gloves,
and may also include equipment such as latex or
rubber gloves, face shields, goggles, protective
clothing, respirators, head protection, hearing
protection and steel toed footwear.
• Practice good hygiene. Use hot soapy water to wash
hands and other body parts exposed to drain contents
after handling or using drain cleaning equipment.
Do not eat or smoke while operating or handling
drain cleaning equipment. This will help prevent
contamination with toxic or infectious material.
• Do not spray toxic or ammable liquids. This will
reduce the risk of burns, re, explosion or other injury.
• Gasoline and its vapors are highly ammable and ex-
plosive. See engine manual for precautions to reduce
the risk of burns, explosions and serious injury while
handling and using gasoline.
• Engines produce carbon monoxide, a colorless,
odorless poison gas. Breathing carbon monoxide can
cause nausea, fainting or death. Do not start and run
engine in an enclosed area, even if doors and windows
are open. Only operate outside.
• Hot surfaces can cause burns and re. Keep body
parts and ammable material away from hot surfaces.
• Read and understand this manual, the engine manual
and the warnings and instructions for all equipment
and material being used with this tool before operat-
ing. Failure to follow all warnings and instructions may
result in property damage and/or serious injury.
• Follow all applicable workplace health and safety
regulations and guidelines concerning the use of this
equipment.
If you have any question concerning this Jetwave®product:
– Contact your local Jetwave®distributor.
– Visit jetwave.com.au/nd-a-dealer to nd your local
Jetwave contact point.
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SCORPION G2 MANUAL - WATER JETTER/DRAIN CLEANER
Figure.1a - Scorpion G2 Water Jetting Machine with optional front
double stack kit
Figure.2 - Scorpion G2 Water Jetting Machine with optional
trolley kit
Standard equipment
A Jetwave Scorpion G2™Water Jetter comes with:
• Primary hose reel with 60m of 3/8” jetter hose
• (Optional) Remote hose reel
with 60m of 1/4” jetter hose
• (Optional) 15m whip hose with nozzle
• Appropriate Jetter Nozzle Kit
• Wash down lance
• Engine Operator’s Manual
• Operator’s Manual
See the Jetwave®catalog for specic equipment supplied
with each catalog number.
Description, Specications and
Standard equipment
Description
The Jetwave® Scorpion G2™ Engine Powered Water Jetting
Machine is a portable high pressure water jetter designed
to use a combination of water pressure and ow to clear
grease, sludge, sediment and roots out of drains. A highly
exible and lightweight hose is propelled through the drain
pipe by the reverse jets on the jetter nozzle, and when
retrieved scrubs the line ushing debris away. The
Scorpion G2™Water Jetter equipped with an EFI gasoline
engine to drive the triplex plunger pump. A 40 liter water
tank with low water level shut-off allows operation with low
water supply ow rates.
MODEL PUMP PRESSURE
(PSI/BAR)
FLOW RATE
(L/PM) PETROL ENGINE
UNIT
WEIGHT
(KG)
MACHINE
DIMENSIONS
(mm)
Scorpion G2 JW Triplex
Plunger 5080 / 350 23 HONDA GX690 195 1200(L)x550(W)
x1250(H)
Scorpion G2 JW Triplex
Plunger 4350 / 300 26 HONDA GX690 195 1200(L)x550(W)
x1250(H)
Figure.3 - Machine Serial Number
Figure.1 - Scorpion G2 Water Jetting Machine
SCORPION G2 MANUAL - WATER JETTER/DRAIN CLEANER
6
The machine serial number is located on the frame.
The last 4 digits indicate the month and year of the
manufacture. (01 = month, 18 = year).
NOTICE This machine is made to clean drains. If properly
used it should not damage a drain that is in good condition
and properly designed, constructed and maintained.
If the drain is in poor condition or not properly designed,
constructed or maintained, the drain cleaning process
may not be effective or could cause damage to the drain.
The best way to determine the condition of a drain before
cleaning is through visual inspection with a camera.
Improper use of this jetting machine can damage the jetter
and the drain. This machine may not clear all blockages.
Machine Assembly
WARNING
To prevent serious injury during use and prevent
machine damage, follow these procedures for proper
assembly.
Engine Oil
NOTICE The jetter is shipped with oil in the engine.
Operating the engine with low or no oil will result in engine
failure. See supplied engine operator’s manual for specic
information on checking oil, adding oil and oil selection.
Pump/Gearbox Oil
The jetter is shipped with oil in the pump and gearbox.
Check oil level (ensure half way on sight-glasses) per
Maintenance section.
Pre-Operation Inspection
WARNING
Before each use, inspect your water jetter and
correct any problems to reduce the risk of serious
injury from high pressure water and other causes and
prevent jetter damage.
Always wear safety glasses, gloves and other
appropriate protective equipment when inspecting
your jetter to protect against chemicals and bacteria
on the equipment
1. Make sure that the battery isolator and engine switch is
in the OFF position.
2. Clean any oil, grease or dirt from the equipment,
including the handles and controls. This aids inspection
and helps prevent the machine or control from slipping
from your grip.
3. Inspect the water jetter and accessories for the
following:
• Proper assembly and completeness.
• Broken, worn, missing, misaligned, binding or loose
parts.
• Presence and readability of the warning labels.
(See Figure 4.)
• Any other condition which may prevent the safe
and normal operation.
If any problems are found, do not use the water jetter until
the problems are corrected.
Figure.4A - Scorpion G2 Warning Labels
Figure.4B - Scorpion G2 Warning Labels
Clean water lter (Figure 5). Using the drain valve, drain
the tank. Unscrew the brass cover from bottom of the lter
and remove and clean the mesh lter. Dirt and debris can
restrict the water ow to the pump and cause performance
issues.
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SCORPION G2 MANUAL - WATER JETTER/DRAIN CLEANER
4. Inspect the jetter nozzle orices for any damage or
blockage. Blockages can be cleaned with a nozzle
cleaning tool. Use care not to enlarge nozzle orices
while cleaning. Damaged nozzles or nozzles with
enlarged orices can decrease jetter performance and
should be replaced.
5. Inspect the hoses, connectors and ttings for wear and
damage. If there are any kinks, cracks, breaks or wear
through the outer jacket of the hose or other damage,
do not use the hose. Damaged hoses can burst or
leak high pressure water and cause serious injury.
Replacement hoses and tting should be rated at or
higher than the jetter pressure rating.
6. Inspect and maintain the engine per the engine
operator’s manual.
7. Check engine fuel level (Figure 4A). If needed, add
unleaded gasoline. See engine operator’s manual for
requirements. Use caution when handling gasoline.
Work in a well ventilated area. Never ll the tank while
unit is running, do not overll tank and do not spill fuel.
Make sure tank cap is securely closed.
8. Check the oil level(s) in the pump and gear box through
the sight glass and add oil if needed (see Maintenance
Instructions section). Inspect Engine as directed in the
engine operator’s manual.
Machine and Work Area Set-up
Always wear safety glasses, gloves and other
appropriate protective equipment when setting up
your jetter to protect against chemicals and bacteria
on the equipment. Rubber soled, non-slip shoes can
help prevent slipping on wet surfaces.
Engines produce carbon monoxide, a colorless,
odorless poison gas. Breathing carbon monoxide
can cause nausea, fainting or death. Do not start and
run engine in an enclosed area, even if doors and
windows are open. Only operate outside.
Set-up the jetter and work area according to these
procedures to reduce the risk of injury from high
pressure water, chemical burns, infections, carbon
monoxide and other causes, and prevent jetter
damage.
1. Check work area for:
• Adequate lighting.
• Flammable liquids, vapors or dust that may ignite.
If present, do not work in area until sources have
been identied and corrected. The machine is not
explosion proof and can cause sparks.
• Clear, level, stable dry place for machine and
operator.
• If needed, remove the water from the work area.
Wood or other coverings may need to be put
down.
• Jetter location that is in a well ventilated outdoor
area. Do not place the jetter indoors, even with
doors and windows open. Jetter can be located
remotely from the point of use.
• Suitable water supply. Clear path to transport the
jetter to the set up location.
2. Inspect the drain to be cleaned. If possible, determine
the access point(s) to the drain, the size(s) and
length(s) of the drain, distance to tanks or mainlines,
the nature of the blockage, presence of drain cleaning
chemicals or other chemicals, etc. If chemicals are
present in the drain, it is important to understand the
specic safety measures required to work around
those chemicals. Contact the chemical manufacturer
for required information.
If needed, remove xture (water closet, etc.) to allow
access to the drain. Do not feed the hose through a
xture. This could damage the hose and the xture.
3. Determine the correct equipment for the application.
See the Specications section for information on the
jetter. Drain cleaners and jetters for other applications
can be found by consulting the Jetwave®Catalog, on
line at www.jetwave.com.au
4. Make sure all equipment has been properly inspected
5. Evaluate the work area and determine if any barriers
are needed to keep bystanders away. Bystanders
can distract the operator. If working near trafc, erect
cones, signs or other barriers to alert drivers.
WARNING
SCORPION G2 MANUAL - WATER JETTER/DRAIN CLEANER
8
6. If needed, place protective covers in the work area.
The drain cleaning process can be messy.
7. Take the jetter to the well-ventilated outdoor work
area along the clear path. See Transportation Section.
Be aware of possible slip hazards. Wear appropriate
footwear to help prevent slips.
Water Supply
Run a hose from the water source to the jetter water inlet.
Use the largest diameter, shortest length hose possible. A
3/4” I.D. Inlet hose is the minimum recommended size. An
appropriate backow prevention device should be used to
comply with all local codes and ordinances.
Dirt and debris in the water supply can cause excess pump
wear, clog the jetter lter, nozzles and reduce performance.
Do not use water from ponds, lakes or other sources that
may be contaminated.
Fill the jetter water tank prior to starting the jetter.
The tank is equipped with a:
• Low water level shut-off to prevent pump damage from
insufcient water. This will shut OFF the engine when
the tank water level falls below a predetermined level.
• Float valve to shut-off inlet water when the tank is full,
preventing water spillage through the tank vent.
By removing two screws, the top of the tank can be
removed for inspection or tank cleaning (Figure 6).
Warm water can be used for improved cleaning. Do not
use water hotter than 60°C this can cause pump and/
or oat valve damage. When using warm water, use
appropriate personal protective equipment to reduce the
risk of burns.
When using in cold weather, use precautions to prevent
water from freezing in the pump. This can damage the
pump.
Drain Preparation
If working through a manhole, storm grate or other large
access, use pipe and ttings to create a guide for the
jetter hose from the drain opening to operation point. This
will prevent the jetter hose from whipping around in the
access and protect the hose from damage (Figure7 ).
Hose Set-Up
Use care when routing jetter hoses. Routing hoses over
rough surfaces, sharp edges, crossing hoses, etc. can
damage the hose jacket. Keeping the jetter hose on the
reel(s) will help to minimize hose damage.
The Scorpion G2 is equipped with two hose reels, a
primary reel mounted to the jetter frame and the remote
reel which has a separate base. Typically the primary reel
is equipped with larger hose suitable for jetting larger
diameter drains or supplying water to the remote reel. The
remote reel is typically equipped with smaller hose used for
jetting smaller diameter drains.
1. Select a jetter hose size appropriate for the drain being
cleaned. See Jetter Hose Selection Chart.
2. Locate the desired hose reel (primary or remote) for
jetting within 1 meter of the drain opening. Do not
allow excessive amounts of hose outside of the drain
to prevent hose damage. If the hose reel cannot be
placed within 1 meter of the drain opening, extend the
drain opening back to the hose reel with similar sized
pipe and ttings (Figure 7).
Figure.6 - Water Tank Lid
Figure.7 - Extending the Drain Opening to the Operation Point
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SCORPION G2 MANUAL - WATER JETTER/DRAIN CLEANER
1. Water Control Valve. Choose the valve to be used to
control water ow.
If using a foot valve to control water ow, route a hose
from the jetter pump to the IN tting on the foot valve.
Connect the hose on OUT tting of the foot valve to the
hose reel to be used. Connect so that the foot valve
hose feeds into the ball valve on the hose reel. (See
Figure 8.)
Figure.8 - Standard Remote Reel
1. If not using the foot valve, use the ball valve on the reel
being used to control water ow. Route a hose from
the jetter pump into the ball valve on the hose reel.
Make sure quick connect ttings are secure.
2. Position the reel for accessibility. You must be able to
control the jetter hose and the water control valve.
3. Mark the jetter hose near the end to indicate when
the nozzle is getting close to the drain opening when
withdrawn. This will help prevent the nozzle from
coming out of the drain and whipping around. The
distance depends on the conguration of the drain, but
should be at least 4’/1.2 m
4. Select a nozzle and attach. Use nozzles specically
sized for the jetter being used. Using incorrect nozzles
can cause poor performance (low operating pressure
or low ow) or may damage the jetter with excessively
high pressures. Make sure the nozzle orices are clear
and open. See Jetter Nozzle Selection Chart.
Many nozzles attach to the hose with a quick connect.
To attach, pull the collar back, fully insert the male
end of the quick connect mounted on the nozzle and
release the collar (See Figure 9). Conrm that the
connection is secure. This will reduce the risk that the
nozzle is lost during use.
Only use nozzles for the pipe sizes they are rated for. Using
a nozzle designed for smaller pipe sizes in larger diameter
pipe increases the risk of the nozzle changing direction in
the drain, exiting at the user and causing serious injury.
If using the Reverse Root Cutting nozzle for drains larger
than 6”/150 mm and up to 10”/250 mm, an extension must
be used to reduce the risk of the nozzle changing direction
in the drain, exiting at the user and causing serious injury.
For drains 6”/150 mm and smaller, no extension is needed.
If needed, rmly hand tighten the extension to the nozzle –
do not over tighten. See Figure 10.
Figure.9 - Nozzle Quick Connect Operation
Figure.10 - Reverse Root Cutting Nozzle and
Extension Pictured Separately
SCORPION G2 MANUAL - WATER JETTER/DRAIN CLEANER
10
Applications Pipe Size Suggested Hose (ID)
Kitchen sinks, laundry tubs and stacks, clean-outs, and vents. 2” – 3” 1/8” Whip hose (optional equipment)
Shower and oor drains, lateral lines, and grease traps. 3” – 4” 1/8” or 3/16” Whip hose (optional
equipment) or 1/4” Remote Reel
Sewer and storm water lines 4” – 6” 1/4” Remote Reel or 3/8” Primary Reel
Lateral and main lines. 6” – 10” 3/8” Primary Reel
Jetter Hose Selection Chart
Jetter Nozzle Selection Chart
Penetrating Nozzle (Red Cowl): Uses three jet thrusters in reverse plus one jet pointed
forward to penetrate solid grease, sludge or sediment blockages. The forward jet blasts a
small hole in the blockage for the nozzle to follow. It is also very effective when jetting ice
blockages. Attaches to hose with quick connect, includes cowl protection. For 3” to 6”
drain sizes.
Negotiator Nozzle (Blue Cowl): Use this nozzle to help negotiate more difcult bends or
gully traps as it is of a short construction. This nozzle has three reverse jet thrusts and one
forward. Attaches to hose with quick connect, includes cowl protection. For 3” to 6” drain
sizes.
Large Drain Nozzle: hard xed end within the standard kit for work on smaller diameter
pipes (3” to 4”) with tighter radiuses/bends. This nozzle is smaller in size and eliminates
the quick connect to allow easier negotiation around bends in the line. It has three rear jets
with one facing forward for a range of applications. Nozzle includes a 1/4” BSPT thread to
connect directly to hose thread.
Small Drain Nozzle: supplied with optional equipment exible leader for smaller diameter
pipes (2” to 4”). This nozzle is exceptionally small and short and has three rear jets with
one facing forward for a range of more domestic applications e.g. internal drains/pipes
etc. Nozzle includes a 1/8” BSPT thread to connect directly to hose thread as supplied
standard.
Reverse Root Cutting Nozzle: Use to clear roots and other type of blockages. Uses a
rear facing oscillating jet for more complete drain cleaning. Attaches to hose with quick
connect. For drain sizes 4” to 10”, as noted here.
WARNING If using the Reverse Root Cutting nozzle for drains larger than 6”/150 mm and up to
10”/250 mm, an extension must be used to reduce the risk of the nozzle changing direction in the
drain, exiting at the user and causing serious injury.
If using nozzles that are not equipped with a quick connect, the female quick connect must be removed from the end of
the hose and the nozzle securely threaded on. Stock hoses and nozzles use BSPT threads. Make sure that the threads
match and that sealant is used to prevent leaks.
11
SCORPION G2 MANUAL - WATER JETTER/DRAIN CLEANER
Operating Instructions
CAUTION
Always wear eye protection to protect your eyes
against dirt and other foreign objects. Always wear
appropriate personal protective equipment for the
work environment.
Never operate the jetter with the hose end out side
of the drain. Hose can whip, causing striking injuries
and spray can penetrate skin and cause serious
injury.
High pressure uid can inject under skin resulting
in serious injury, including amputation. do not
direct spray at people or animals. do not operate
jetter above pressure rating or 60°C (inlet water
temperature). This increases the risk of injury,
including burns, and damage to the jetter. one person
must control the jetting process and water ow. If the
jetter hose comes out of the drain, the operator must
be able to shut off the water ow to reduce the risk
of the jetter hose whipping, causing striking and high
pressure injection injuries.
Always use appropriate personal protective
equipment while handling and using drain cleaning
equipment. drain may contain chemicals, bacteria
and other substances that may be toxic, infectious,
cause burns or other issues. Appropriate personal
protective equipment always includes safety glasses
and gloves, and may also include equipment such
as latex or rubber gloves, face shields, goggles,
protective clothing, respirators, and steel toed
footwear.
Follow operating instructions to reduce the risk of
injury from whipping hoses, high pressure liquid
injection, carbon monoxide and other causes.
1. Make sure that machine and work area is properly set
up and that the work area is free of bystanders and
other distractions. If the jetter is located remotely from
the point of use, another person should be located at
the jetter.
2. Insert the hose with nozzle attached into the drain at
least 1m (3ft) so that the end of the hose will not come
out of the drain and whip around when the machine is
started.
3. Turn the battery isolator switch ON and conrm the
Emergency stop button is in the out position (rotate
button clockwise) (Figure 11).
4. Conrm that the water supply is turned on and the
water tank is full. Never start the engine without the
water supply turned ON. This can damage the pump.
5. Grip the hose near the pipe opening. Open the
selected water control valve (ball or foot valve). Start
the engine with key. Set the throttle to the full open
position. Conrm that water ows freely through the
nozzle. Close water control valve. When the water
control valve is closed and the jetter is running, the
unloader valve will recirculate water back to the tank.
Allow the engine to warm up.
PUMP OIL SIGHT GLASS
GEARBOX OIL SIGHT GLASS
Figure.11
SCORPION G2 MANUAL - WATER JETTER/DRAIN CLEANER
12
6. If needed, turn the unloader valve while monitoring the
pressure gauge on the unloader valve to adjust the
pressure as desired (clockwise to increase pressure,
counter-clockwise to decrease pressure). Do not
exceed the machine pressure rating. Do not force the
unloader valve or use wrenches or tools to turn. This
will damage the unloader valve. Pressure gauge on the
remote reel will read lower than unloader valve gauge,
depending on hose size and length.
If the jetter will not generate the rated pressure or is erratic
• Make sure the engine throttle is properly adjusted to
the full open position.
• Turn unloader valve clockwise to increase pressure. Do
not force.
• Inspect system for leaks. Use caution during inspection
to prevent injury. If leaks are found, shut jetter OFF
before xing.
• Turn the jetter OFF. Check the inlet tank and lter and
make sure that they clear of debris.
• Make sure there is adequate water ow to the jetter.
• Turn the jetter OFF. Remove the nozzle and clean the
orices with the nozzle cleaning tool.
• Run the jetter without a nozzle on the hose to remove
air or debris from the system. Turn the jetter OFF
before removing or attaching the nozzle.
6. Assume a proper operating position.
• Be sure you can control the ON/OFF action of a water
control valve (ball valve or foot valve). Do not turn the
valve ON yet. In case of emergency you must be able
to turn off water ow.
• Be sure that you have good balance and do not have
to overreach.
• You must be able to place one hand on the jetter hose
at all times to control and support the hose.
• You must be able to reach the reel for coiling the hose.
This operating position will help to maintain control of the
jetter hose. Jetting the Drain
When jetting a drain, typically the hose is fed into the drain
the full distance to be cleaned and slowly pulled back. This
allows the high pressure water directed at the drain walls to
remove build-up.
Release the locking pin on the hose reel (Figure 2). With
at least 1m (3 ft) of hose in the drain and one hand on the
hose to control its movement, open the ow control valve.
The reverse jet thrusters on the nozzle will help pull the
hose into the drain. Feed the hose in the as far as needs
to be cleaned. If the hose stops, it has encountered some
type of obstruction.
If the nozzle cannot pass through an obstruction, such as a
change in direction (trap, turn, etc.) or a blockage.
• Use sharp thrusts of the hose.
• Rotate the hose a quarter to half turn to orient the
set of the hose to the direction change (If the hose is
rotated, once through the obstruction, turn the hose
back to help prevent kinks) See Figure 13.
• Use a exible leader or smaller diameter hose.
Figure.12 - Proper Operating Position
13
SCORPION G2 MANUAL - WATER JETTER/DRAIN CLEANER
Once past a blockage, take the time to clean that section
of drain prior to moving forward. Move several feet past
the area of the obstruction and slowly pull the nozzle back
through the area of the obstruction. Do this several times
and then move further into the drain.
Watch the drain water level. If the water level gets too high,
you may need to turn the jetter OFF and allow the water
to drain prior to continuing. Jetting when the line is full of
water is less effective than when the line is empty.
If the water level in the water tank falls below ¼ full, the
oat valve will turn the engine OFF. Generally, at this point
you must allow the tank to rell before restarting the jetter. If
that does not work, see troubleshooting section.
Once the nozzle is the desired distance into the drain,
slowly (0.3m/minute for heavy drain accumulations) pull
the nozzle back through the drain. Use one hand to control
the hose and the other to wind the hose onto the reel.
Watch as the nozzle gets closer to the drain opening that
the nozzle does not come out of the drain while water is
owing. This could allow the hose to whip around and
cause striking and high pressure uid injuries. Always
control the hose. Look for the mark on the hose near the
end.
With hose still in the drain, turn OFF the engine as directed
in the engine manual, and open water control valve to
release the system pressure. Never leave the system
pressurized. If needed, change the nozzle and continue
cleaning following the above process. Several passes
through a line are recommended for complete cleaning.
Draining Water from System
Draining machine will reduce the jetter weight for
transportation and minimize the chance of water spillage.
To drain the tank, attach a hose to the tank drain and
open valve. Once the tank is empty, disconnect the quick
connect from the hose reel and allow water to drain from
pump and hoses.
If using the jetter in cold weather conditions, see Machine
Storage for information on freeze protecting.
Using Water Jetter Machine as a Pressure
Washer
Wash down gun is not to be used in conjuction with
remote reel wtih 1/4” hose.
This Jetwave water jetting machine can also be used as
a pressure washer. Use as a pressure washer is similar to
use as a jetter, and those instructions should be used in
conjunction with the following.
1. Locate an appropriate work area
2. Make sure all equipment has been properly inspected
3. Attach the wash wand to the jetter hose using the
quick connect coupling. Make sure the hose is
securely connected to prevent it from coming off under
pressure.
4. When using the jetter as a pressure wash, the wash
wand acts as the water control valve. Open other
valves in the system to allow water to ow
5. Connect an appropriate water supply, as discussed
earlier, to the jetter. Never start the engine without the
water supply turned ON. This can damage the pump.
6. Wash Wand Lock Out – the wash wand includes a lock
out on the back of the trigger. Flip the lock out down
to prevent the operation of the trigger when the wash
wand is not in use (Figure 14).
7. With the wand pointed in a safe direction, squeeze the
wash wand trigger to reduce pressure and allow the
engine to be started. Following the starting instructions
supplied in the engine manual, start the engine. Set
the throttle to the full open position. Allow the engine
to warm up. Release the trigger soon after the engine
starts.
8. With the wand pointed in a safe direction, squeeze
the wash wand trigger. If applicable; turn the unloader
valve while monitoring the pressure gauge to adjust
the pressure as desired. Do not exceed the machine
pressure rating. Release the wash wand trigger.
Pressure Washer operation
1. When using as a pressure washer use both hands
to grip and direct the wash wand for greater control.
Never direct the wash wand at people. High pressure
uid can inject under skin resulting in serious injury.
Never direct wash wand at electrical equipment or
wiring to reduce the risk of electrical shock.
2. Control the ow of water with the trigger. Use care
when using the pressure washer. Holding the nozzle
too close to a surface can damage it. Test a small,
inconspicuous area to conrm the settings work as
desired.
3. Do not allow the jetter to run for extended period of
time with the trigger OFF. When the trigger is OFF,
water recirculates and it causes the water to heat up.
4. Once pressure washing is complete, release the trigger
and turn OFF the engine as directed in the engine
manual. Squeeze the trigger and ensure all water
control valves are also in open position to release
system pressure. Never leave the system pressurized.
Figure.14 - Wash Wand
CAUTION
SCORPION G2 MANUAL - WATER JETTER/DRAIN CLEANER
14
Hose Reel Brake Adjustment
The reels are equipped with an adjustable brake to
prevent the hose from playing off the reel under its own
weight. Tightening wingnut increases the drag on the reel,
loosening decreases the drag. Adjust as desired. The brake
only works in one direction (to resist hose moving off reel)
(Figure 15).
Transportation and Storage
1. Turn off the fuel valve and the battery isolation switch.
2. Drain water from Jetter as needed.
3. Coil hoses and secure equipment appropriately. All
loose material must be removed. Transport remote reel
separate from jetter.
4. Jetter is equipped with wheels to allow transport over
smooth level surfaces.
5. Jetter weighs 195kg (approx.) Use appropriate
equipment and methods to load and transport. Use
all four points supplied at the top corners of the
frame (Figure 6) when lifting. Use rigging with current
certications per the manufacturer’s instructions.
Maintenance Instructions
WARNING
Before performing any maintenance, engine switch
battery isolation switch should be in OFF position and
spark plug wires should be disconnected to prevent
inadvertent operation. Open water control valve to
release any uid pressure in system.
Always wear safety glasses and gloves when
performing any maintenance to help protect against
drain chemicals and bacteria.
Cleaning
The hose should be cleaned as needed with hot, soapy
water and/or disinfectants. Do not allow water to enter the
engine or electrical system. Do not clean with pressure
washer. Wipe the unit down with a damp cloth.
Figure.15 - Brake Adjustment
Engine
Maintain the engine as directed in the engine operator’s
manual supplied with the unit. An hour meter is included on
the engine to monitor jetter use.
Battery
To change battery
1. Unclip strap holding battery box top on, remove top.
2. Disconnect ground (-) cable connection rst, followed
by positive (+) cable connection.
3. Remove battery.
4. Reverse procedure to install.
Replacement batteries should have the following
specications:
• BCI Group/Type: U1
• Size (L x W x H): 196 x 128 x 159 (mm)
• Voltage: 12
• Cold Cranking Amps (CCA): 350
• Reserve Capacity (RC): 45
• Terminal Type: Offset Lug Terminal (OLT)
• Assembly Type: C
• Max Charging Volt: 14.8
Pump Lubrication/Maintenance
Check the pump oil level prior to each use. Place the jetter
on a level surface. Wipe any dirt and debris from the area
of the dipstick and sight-glass. Oil level should be at the
middle of the sight-glass (Figure 16). If needed, remove the
dipstick and add SAE 15W-40 Mineral non-detergent oil,
ll to half-way on the sight-glass. Do not overll, reinstall
dipstick.
Figure.16 - Checking Pump and Gearbox Oil Level
15
SCORPION G2 MANUAL - WATER JETTER/DRAIN CLEANER
Change oil in pump after rst 50 hours of operation and
every 500 hours of operation after that. With the pump
warm from operation, remove plug on bottom of pump
and drain oil into suitable container. Replace plug. Fill to
approximately half-way on the sight-glass with SAE 15W-
40 Mineral non-detergent oil using the checking procedure.
Approximately 1000 ml of oil are required to change the
pump oil.
At 1000 hours of use (less in severe use conditions) the
Scorpion G2 should be taken to a Jetwave Independent
Service Center for pump seal and valve service.
Gearbox Lubrication
Check the gearbox oil level prior to each use. Place the
jetter on a level surface. Wipe any dirt and debris from
the area of the dipstick and sight-glass (Figure 16). Oil
level should be at the middle of the sight-glass. If needed,
remove the dipstick and add SAE 85W-140 gear lubricant
oil, ll to half-way on the sight-glass. Do not overll, reinstall
dipstick.
Change oil in gearbox every 500 hours of operation. With
the gearbox warm from operation, remove plug on bottom
of gearbox and drain oil into suitable container. Replace
plug. Fill to half-way on the sight-glass with SAE 85W-140
gear lubricant oil. Approximately 300 ml of oil are required
to change the gearbox oil.
Preparing Pump for Cold Weather Storage
If the jetter will be stored under conditions where the
temperature is near or below 0°C, the jetter must be
properly prepared. If water freezes in the pump, it can
damage it.
After the tank is drained, remove the hose from the
water inlet lter. Open all valves in the system and use
compressed air to force any water out of the system. This
can also be used to remove water from the hoses.
Machine Storage
Store the jetter in a well ventilated area protected from rain
and snow. Keep the machine in a locked area that is out
of reach of children and people unfamiliar with Jetters. This
machine can cause serious injury in the hands of untrained
users. See Maintenance section for information on cold
weather storage. See engine operator’s manual for specic
information on engine storage.
Service And Repair
WARNING
Improper service or repair can make machine unsafe
to operate.
The “Maintenance Instructions” will take care of most
of the service needs of this machine. Any problems not
addressed by this section should only be handled by an
authorized Jetwave service technician.
Tool should be taken to a Jetwave Independent Service
Center or returned to the factory.
For information on your nearest Jetwave Independent
Service Center or any service or repair questions:
• Contact your local Jetwave distributor.
• Visit jetwavegroup.com.au/nd-a-dealer/ to nd your
local Jetwave contact point.
• Contact Jetwave Technical Service Department at
Disposal
Parts of the water jetter contain valuable materials and
can be recycled. There are companies that specialize
in recycling that may be found locally. Dispose of the
components in compliance with all applicable regulations.
Contact your local waste management authority for more
information.
SCORPION G2 MANUAL - WATER JETTER/DRAIN CLEANER
16
PROBLEM CAUSE SOLUTION
Jetter shuts off in use. Not enough water in the tank (low water
oat switch turning jetter off).
Conrm water supply is ON.
Conrm water supply hose is clear and not
kinked or collapsed.
Conrm water level in tank.
Jetter will not adjust to
full operating pressure
at start-up.
Air is trapped in system.
Jetter nozzle orices are blocked.
Remove nozzle and insert jet hose in drain line.
Run jetter to ush trapped air or debris.
Remove nozzle. Use nozzle cleaning tool to
clear nozzle orices: push completely through
each orice to remove debris.
Jetter pressure gage
oscillates from 500 to
full operating pressure.
Jetter nozzle orices are blocked.
Debris or air trapped in system.
Remove nozzle. Use nozzle cleaning tool to
clear nozzle orices: push completely through
each orice to remove debris.
Remove nozzle and insert jet hose in drain line.
Run jetter to ush trapped air or debris.
Jetter won’t start. Not enough water in the tank.
Filter is clogged.
See “Jetter shuts off in use” above.
Clean inlet lter.
Pump runs extremely
rough, pressure very
low
Inlet restrictions and/or air leaks inlet
side of pump.
Stuck inlet or discharge valve.
Check hose from tank to pump for kining;
conrm hose connections are tight.
Worn pump cups or valves. Take jetter for
pumpservice.
Low pressure Worn nozzle.
Air leak in inlet plumbing.
Pump valves stuck, worn or dirty.
Unloader valve improperly adjusted.
Filter clogged.
Worn pump packing.
Abrasives in pumped uid.
Severe cavitation. Inadequate water
supply.
Replace nozzle (must be properly rated for the
jetter).
Conrm hose connections are tight.
Take jetter for pump service.
Adjust Unloader Valve.
Clean lter. Check more frequently.
Take jetter for pump service.
Change water supply or add appropriate lters.
Conrm no water supply restrictions.
Trouble Shooting
17
SCORPION G2 MANUAL - WATER JETTER/DRAIN CLEANER
Hour Meter
Reading Date Maintenance Performed Service Agent
Maintenance Log
SCORPION G2 MANUAL - WATER JETTER/DRAIN CLEANER
18
NOTES
19
SCORPION G2 MANUAL - WATER JETTER/DRAIN CLEANER
NOTES
jetwavegroup jetwave.group jetwavegroup
72–74 Richmond Road, Keswick, 5035
Adelaide, South Australia, AU
+61 8 8371 3599
jetwave.com.au
jetwavegroup jetwave-group
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