Jetblaster UN1500/12G User manual

Universal Hot Water
Pressure Cleaner
Manual
Universal Manual

2
UNIVERSAL INSTRUCTION MANUAL
UN1500/12G –UN2400/13G –UN3000/15G –UN3000/21G
CONTENTS: PAGE:
Safety 3
Set up Instructions 4 –6
General Maintenance 7 –8
General Fault Finding 9 –12
Safeties throughout the Machine 13 –14
Parts Breakdown 15

3
SAFETY:
Before operating a pressure cleaner please make sure that you read the manual / instructions
that is supplied with every unit and make sure that you understand everything that has been
read. If you are unsure please re-read the manual / instructions until you understand the
entire contents. If anything is not understood please contact the supplier of the unit with any
questions that you may have.
1) Read Manual Completely and Understand it
2) Please make sure that you have and are wearing the following safety clothes and any
other you feel may be required: -
a) Safety Glasses
b) Steel Capped Shoes
c) Long Pants
d) Long Sleeved Top
e) Head Protection
f) Safety Gloves
g) Ear Plugs
Make sure that the power point that you are plugging the machine into is safe and not
faulty. If it is faulty or tag on it is out of date please get a qualified electrician to repair prior
to plugging in the machine to that socket.
DO’S AND DON’TS:
1) Never point the lance of a high pressure water blaster at a person while in use
2) Never point the lance of a high pressure water blaster at an animal while in use
3) Never wash the machine down with the high pressure water
4) Never wash the electrics of the machine or any other electrics with the high pressure
water blaster
5) Always have a qualified technician repair faults with the pressure cleaner
6) Always wear the above safety gear while operating a pressure cleaner
7) Always read the operations manual of the machine prior to the first time using the
pressure cleaner
8) Always abide by warning labels on the machine
9) Always get a qualified electrician to repair or replace the electrical cable of the
pressure cleaner

4
SET UP INSTRUCTIONS
ITEMS REQUIRED:
1) WATER SUPPLY CONNECTION:
a) Water hose with ½” internal bore size
2) ELECTRICAL CONNECTION:
a) 3 PHASE OUTLETS FOR THE FOLLOWING CONFIGURATIONS:
2400/13G –10 AMP 4 PIN PLUG
3000/15G –20 AMP 4 PIN PLUG
3000/21G –20 AMP 4 PIN PLUG
b) SINGLE PHASE must be a 15amp outlet to suit a 15 amp plug
3) FUEL:
a) Diesel
CAUTION: Do not use Kerosene. Burner is not designed to burn kerosene.
WARNING: Do not use petrol or any oil containing petrol. This may result in explosion of
the boiler.
Sufficient air must be available for combustion.
Use only in properly ventilated areas to ensure free flow of air to the burner.
DO NOT ATTACH AN EXTENDED FLUE TO THE EXISTING UNIT. THIS WILL VOID WARRANTY
AND ESSENTIALLY WILL DESTROY THE BURNER SET UP.
Beware of tight locations and exhaust fans.
Combustion with inadequate oxygen produces dangerous carbon monoxide.
OPERATION:
1) CHECK:
a) Power connection OK and switches OFF
b) Water supply ON
c) Cistern Tank full and float switch operating
d) Float V 5alve closed when water level in cistern tank’s 3” below top of tank
e) Fuel tank is full
2) TO START:
a) Pump and burner switches must be in off position.
b) Turn on the main power switch.

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c) Turn pump switch ON. Ensure that the pump primes itself and settles down to steady
operation with a continuous high pressure water flow from nozzles, before turning on
the burner.
d) If the hot water is required turn ON burner. Burner is equipped with automatic
ignition and flame control. Firing results a few seconds after turning ON. Should flame
not occur, refer to burner section below.
3) BURNER:
a) Burner must have diesel to operate. If the burner shuts down while in use,
check to see if the unit has run out of diesel. If it has, turn off machine, fill up
with diesel (do no overfill), press the reset button on the burner section of the
machine and restart the machine.
b) Adjustments may need to be made to the burner during extreme weather
changes that alters the effectiveness of ignition. If the burner won’t start and
there has been an extreme drop in temperature please contact your nearest
service provider for directions on how to fix.
NOTE: Burner will only fire if the pump switch is in the ON position. Turning pump
switch to OFF position will also turn the burner off.
4) STOP:
a) Turn burner switch to OFF position.
b) Keep pump running for approximately (1) one minute after burner is turned off to
allow burner to be cooled and the ensure that NO HOT WATER IS LEFT IN THE COIL.
THIS IS VERY IMPORTANT!
5) DETERGENT SOLUTION (IF FITTED):
a) The metering valve on the control panel regulates the amount of detergent mixed in
the water. Adjust this until best results are obtained.(Average setting is half a turn
open)
b) After use of detergent, turn the valve to off and run the machine until water is clear
and detergent has been flushed out of the system.
6) OPERATING HINTS:
a) General cleaning: Use plenty of detergent and work from the top of the equipment
down with a steady gun movement. Pre-soaking with detergent is generally
advantageous.
b) After pre-soaking, pressure wash at close range or as required with high pressure
detergent and steady gun movement. Finally, rinse off thoroughly.
c) Pre-treatment with degreasing solution can aid cleaning heavy buildup of grease and
oil, which should be applied by a hand spray and not a pressure cleaner.

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7) IMPORTANT:
a) Keep trigger gun open as much as possible. Less SHOTGUNNING (constant pull and
release of trigger) ensures longer life of gun, unloader valve, high pressure hose, etc.
b) Unit is fitted with a Total Stop control for safety of the machine (this shuts down the
machine when not in use after 1-2 minutes), but ALWAYS turn off the unit when not
being used.
IMPORTANT NOTE:
1) Trigger must be fully open while trying to purge air out of detergent line.
2) Detergent bottle must be full.
3) Detergent pick up line must be fully submersed in solution.

7
MAINTENANCE & GENERAL INFO
IMPORTANT NOTE:
When doing maintenance to the pressure cleaner please make sure that the machines on /
off switch is in the OFF POSITION, the power to the machine is turned off and the machine is
unplugged and that the water to the machine is also turned off and unplugged.
WATER:
a) Your pressure washer uses water to and relies upon water to operate properly. It is of
UTMOST IMPORANCE that if you spot a leak anywhere in the machine, the gun, the lance,
the hose, the bypass, etc that this is handled IMMEDIATELY. If you don’t do this this may
cause further internal damage to the machine where it is trying to compensate for lack of
water. This includes fittings that are connected to the gun, lance or any part of the
machine.
NEVER RUN A MACHINE WITH OUT WATER
PUMP:
b) Check oil level weekly. The oil level can be checked by the sight glass on the right hand
side of the pump and by removing the oil filler plug to which a dip stick is attached. Use
SAE 20/40 or SAE 15/20 oil to top up if required. DO NOT OVERFILL
c) Change oil every 6 months or 300 hours of operation. Suck oil out through dip stick hole
using plastic bottle.
MOTOR:
a) No maintenance during normal life. NOTE: Motor must be kept dry at all times.
UNLOADER VALVE:
a) The unloader is a combined safety valve and unloader. Apart from wear and tear this
valve should require no maintenance. The valve is set to the pressure & water volume of
the machine supplied. Do not adjust this valve. THIS WILL VOID WARRANTY. If not done
correctly this can lead to destruction of the pump and machine itself. If you feel the
machine is low on pressure please see the General Fault Finding chart supplied and if not
resolved contact your nearest service agent.
FILTERS:
a) Inlet water filter and outlet water filter –clean once a week or more frequently as
required. If you are using tank or recycled water more often may be necessary. This will
ensure that the filters don’t get clogged and no small particles get through into the pump.

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FUEL FILTERS:
a) Check fuel filter every month and replace if required.
BURNER:
a) We use a Riello High Efficency Burner with its own inbuilt safeties. The burner unit comes
with a phot electric cell, so if there is no fuel in the system there will be no spark and
therefore it will not allow the burner to start. The burner will also shutdown if it is
running low on fuel or if there is no more fuel. If this occurs, turn machine off, fill with
diesel, press reset on the burner, turn the machine back on and the burner should now be
working.
COIL:
a) Supplied with your unit is a Stainless Steel or MS coil. The coil is surrounded by a
protective matting. When using this machine and running diesel through it the matting
itself and coil may become soiled after quite some use. You will notice when it does when
the stuff being emitted from the flue turns smoky. When this occurs, please contact your
service agent as the coil may need to removed, cleaned and new matting placed in. To
avoid this occurring often please use high quality diesel.
DETERGENT (IF FITTED):
a) Ensure they fit tightly over barbs. Loose fitting lines will allow air to be sucked in causing
loss of pressure or a pulsating output. Extended operation with air leakage will damage
the pump.
WARNING:
DO NOTE run pump dry –machine is fitted with a low level water cut off, but this is
ineffective if the pump loses prime.
Machine is fitted standardly with a Total Stop so that after 1-2 minutes of machine not in use
it will automatically shut down; but always switch machine off when not is use.
DO NOT allow detergent tank to run dry and suck air. Shut off metering valve immediately,
allow pump to re-prime and fill detergent tank.

9
GENERAL FAULT FINDING:
Please find below a general fault finding list on the machine. This is to help with any minor
problems that may arise with the unit during operation and will help solve that problem
quickly and efficiently without too much down time. If any of these faults show up and do not
quickly resolve please contact your nearest service provider.
FAULT:
CAUSE:
REMEDY:
Pump running but machine
low on pressure.
1. Blocked nozzle
2. Worn Nozzle
3. Blocked inlet water
filter.
4. Pump sucking air
5. Valves sticking
6. Unloader valve seat
faulty
1. Inspect the nozzle
thoroughly for any
blockage. Take the
nozzle off and hold
up to light. You
should be able to see
through the hole. If
there is any debris or
something blocking
it, clean out with air
or water and
reattach.
2. If nozzle is worn or
broken it will need to
be replaced.
3. Inspect any water
filters to the machine
and check for debris
or something caught
in them and clean
them as necessary.
4. Check water supply
and possibility of air
ingress
5. Check and clean or
replace is necessary.
6. Check and replace if
necessary.

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7. Nozzle incorrectly
sized based on water
flow and PSI.
7. Check and replace if
necessary.
Fluctuating pressure/surging
1. Check all points 1-7
above
2. Lack of water to the
machine.
1. Do handlings as
covered above.
2. Check water to
machine and that tap
is still working, there
are no blockages,
water isn’t being
shared by others, etc.
Pressure low after period of
normal use
1. Check points 1-7
above on low on
pressure.
2. Valves and Seals may
be worn
1. Do handlings as
covered in points 1-7
above.
2. Take to a qualified
repair technician
Pump noisy
1. Air suction
2. Broken or weak
suction or delivery
valve spring.
3. Foreign matter in
valves
4. Worn bearings
5. Excessive
temperature of
liquid.
1. Check water supply
and corrections on
suction line.
2. Check and replace if
necessary.
3. Check and clean if
necessary
4. Check and replace if
necessary.
5. Reduce to below 75
degrees C
Presence of water in oil
1. Oil seal worn
1. Check and replace if
necessary.

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2. High humidity in air
3. Piston packing worn
2. Check and change oil
twice as often
3. Check and replace if
necessary
Water dripping from under
pump
1. Piston packing worn
2. Oring plunger
retainer worn
3. Seals, valves gone
1. Check and replace if
necessary
2. Check and replace if
necessary.
3. Inspect and replace
as necessary.
Oil dripping
1. Oil seal worn
1. Check and replace if
necessary.
Excessive vibration in
delivery line
1. Irregulator
functioning of the
valves
1. Check and replace if
necessary
No burner
1. Ran out of fuel or no
fuel.
2. Pressure switch
failure or Flow
switch.
3. Fuel Filter clogged
1. Fill with fuel. Press
the reset button.
2. Clean flame sensor
and press reset
button
2.1 Fill with fuel and
press reset button
2.2 Replace pressure
switch or flow switch
3. Replace Fuel Filter
Burning dirty
1. Water in fuel or bad
fuel.
1. Drain fuel tank, refill
with fuel then
replace fuel filter

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2. Coil due for desoot
2. Contact your nearest
service provider.
Unit does not auto stop
1. Pressure switch or
flow switch failure
2. Timer failed
1. Replace pressure
switch or flow switch
2. Replace timer

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SAFETIES THROUGH OUT THE MACHINE:
Please find a list of safeties that have been put throughout the machine to help reduce the
risk of injury to the operator and also damage to the machine.
1) Riello high efficiency burner with flame sensor –This stops the hot water side of the
machine being used without diesel.
2) Reset button on burner –When the burner runs out of fuel it won’t start straight back
up again after being refilled. You must press the reset button in order to restart the
machine again.
3) Low pressure bypass –When the trigger is released and then pulled again for further
operation there is a slow build up of pressure and NOT a kick back of 3000psi at the
gun. This stops the operator from being thrown off balance and accidently spraying
someone or something with 3000psi.
4) IP56 Control Box –The electrics of the machine are enclosed in an IP56 control box.
This helps protect the electrics and the operator.
5) Flex drive coupling between pump and motor –There is a flex drive coupling between
the pump and motor to help restrict heat transfer between the two major operating
components of the unit.
6) Safety Valve –When there is a build up of pressure in the unit and it can’t release it
through the normal avenues the safety valve will let go and put the water out the
back end of the unit.
7) Header Tank –The header tank is there so that the machine has enough water to it, so
the machine doesn’t run out of water.
8) Auto Stop Time Delay –This is there, so that if the trigger is released and not being
used after about 1-2 minutes the machine will shut down to protect the pump from
overheating.
9) Steel Powder Coated Frame and Cover –The steel powder coated frame and cover is
to help with the durability of the machine and if by any chance that the burner started

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blowing out flames the cover wouldn’t melt or catch on fire, therefore protecting the
rest of machine from being damaged.
10) 2 x Solid Rubber wheels and 2 x Lockable Jockey Wheels –These 2 different types of
wheels are used to make the machine easy to move around, which in turn stops the
operator of the unit from straining or hurting themselves when moving the machine.
The lockable jockey wheels also stops the unit from rolling away or into the operator
or another person if the unit is kept on a slight hill or is bumped by accident by
another person.
11) IP55 Rated Electric Motor –The motor used on this machine is an IP55 Rated motor.
This is done to protect the machine from water over spray.

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PUMP BREAKDOWN AND SPARE PARTS
LIST:
Please see the below lists of spare parts and machine component breakdowns including the
wiring diagram.
These can be found on our website at www.jetblaster.com.au in the section of manuals.
Each part and wiring diagram is entered separately as listed here.
UN1500/12
PUMP W140
2.2KW NICOLINI MOTOR
K7-0 BYPASS
UNIVERSAL WIRING DIAGRAM
G10 REILLO BURNER
UN2400/13
PUMP W171
4KW NICOLINI MOTOR
K7-0 BYPASS
UNIVERSAL WIRING DIAGRAM
G10 REILLO BURNER
UN3000/15
PUMP WS201
5.5KW NICOLINI MOTOR
K7-0 BYPASS
UNIVERSAL WIRING DIAGRAM
G10 REILLO BURNER

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UN3000/21
PUMP WS202
7.5KW NICOLINI MOTOR
K7-0 BYPASS
UNIVERSAL WIRING DIAGRAM
G10 REILLO BURNER