q-Tech QT290C Carry User manual

Aristospray Ltd
2b Stephenstown Industrial Park
Balbriggan
County Dublin
Ireland
K32 KV26
Email [e-mail]
www.QTechSpray.com
Phone
UK 01895 276751
ROI 0 1690 3162
International [phone]
@QTechSpray
www.QTechSpray.com
USER MANUAL
QT290C Carry
Airless Sprayer

QTech QT290C Carry Electric Airless Sprayer
CAUTION
This manual contains important warnings and information
PLEASE READ & KEEP FOR FUTURE REFERENCE
VERSION QT290C-01-0422
Aristospray Ltd
2b Stephenstown Industrial Park, Balbriggan, County Dublin, Ireland
Declares that the
QTech QT290C Carry Electric Airless Sprayer
is in compliance with the regulations included in:
2006/42/EC Machinery Directive
2014/35/EU Low Voltage Directive
2014/30/EU Electromagnetic Compatibility Directive
The standards applied by the manufacturer are:
EN55014-1:2006+A1; A1:2009+A2:2011
EN55014-1:2017
EN55014-2:2015
EN61000-3-2:2014
EN61000-3-3:2013
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Check it’s on.
Turn pressure control knob clockwise to
increase pressure
Check plug & cable for loose connections
and/or damage
Check for error codes, if any showing contact a
QTech dealer or technician for advice
Make sure it’s in the prime position
Open prime valve and purge air from pump
Ensure it’s not clogged, clean where necessary
Tighten if loose
Tap the suction tube connection a few times to
loosen - if no result check that lower ball and/or
seat is not worn or scarred
Change packings; contact aQTech dealer or
technician for advice
Check not empty
If clogged, reverse tip, aim gun at scrap and
pull trigger to clear
Check tip for wear, replace where necessary
Check all filters are clear of debris, clean
or replace
Ensure OK for coating/tip combination, change
if necessary
Check OK for spray, thin where appropriate
Check length & diameter compatible with
pump & coating
Check not obstructed with debris, contact a
QTech dealer or technician for advice
Increase pressure
If clogged, reverse tip, aim gun at scrap and
pull trigger to clear
Check tip for wear, replace where necessary
Too thick Move gun faster, check far enough
away from surface and tip size
Too thin Move gun slower, check close enough
to surface and tip size
Check pressure control for wear, contact a
QTech dealer or technician for advice
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Power switch
Pressure control knob
Supply plug & cable
Digital display
Prime valve
Air in paint
Suction lter
Suction tube
Lower ball
Pump leaking paint
Paint bucket
Spray tip
Filters
Coating being sprayed
Hose
Prime valve
Pressure setting
Spray tip
Coating
Uneven spray
Motor won’t run
Pump does
not cycle
Pump won’t
prime
Insufcient
pressure at the
gun or sudden
loss of pressure
Bad quality
spray pattern
SYMPTOM CHECK OUT PROCEDURE
Quick check
The information on this page is intended only as a quick guide. It is no way intended as
a substitute to the information on the pages following, which the user should be fully
acquainted with before using an electric airless sprayer.
QTech QT290C Carry Airless Sprayer

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USE TO SPRAY
Emulsion, interior and exterior
Top coats
Wood preservatives
Most other low-medium
viscosity water or solvent
based coatings
Suitable for smooth
coatings only
PERFORMANCE
Flow 2.9 ltr/min
Max tip 0.027”
MWP 207 bar | 3000 psi
SPECIFICATION
Motor 1300 watt
Weight 22.0 kg
Warranty Refer to
www.qtechspray.com/warrantyplus/
SUPPLIED COMPLETE WITH
TriTech T360 airless spray gun
TriTech Contractor 517
airless tip & guard
1/4” x 15m textile braided
hose assembly
PRODUCT CODES
110 volt QT290C-110
240 volt QT290C-220
QTech QT290C Carry
Quick change manifold lter
Quick-release wet end
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Filter cap
Manifold
lter
Packing
nut
Suction tube
Drain tube
Suction
lter
Pressure
control knob
On/off switch
Prime valve
QTech QT290C Carry Airless Sprayer
For some general advice on using QTech airless spray machines including the answer to
many common FAQs take a look at www.qtechspray.com/spray-faqs/
QTech QT290C Carry Airless Sprayer

Please read these instructions carefully
before using the equipment
GENERAL SAFETY
WARNING! Read and understand all instructions. Failure to follow all instructions listed
below may result in electric shock, re and / or serious personal injury. The term airless
sprayer in all of the warnings listed below refers to your mains-operated (corded) airless
sprayer.
WORK AREA
+ Keep your work area clean and well lit. Cluttered benches and dark areas
invite accidents.
+ Do not operate airless sprayers in explosive atmospheres, such as in the
presence of ammable liquid, gases, or dust. Airless sprayers create sparks
which may ignite the dust or fumes.
+ Keep bystanders, children, and visitors away while operating a airless sprayer.
Distractions can cause you to lose control.
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ELECTRICAL SAFETY
+ Airless sprayer plugs must match the outlet. Never modify the plug in any
way. Do not use any adapter plugs with earthed (grounded) airless sprayers.
Unmodied plugs and matching outlets will reduce the risk of electric shock.
Grounded sprayers must be plugged into an outlet properly installed and
grounded in accordance with all codes and ordinances. Never remove the
grounding prong or modify the plug in any way. Do not use any adaptor
plugs. Check with a qualied electrician if you are in doubt as to whether the
outlet is properly grounded. If the sprayer should electrically malfunction or
break down, grounding provides a low resistance path to carry electricity
away from the user.
+ Avoid body contact with grounded surfaces such as pipes, radiators, ranges
and refrigerators. There is an increased risk of electric shock if your body is
earthed or grounded.
+ Do not expose airless sprayers to rain or wet conditions. Water entering an
airless sprayer will increase the risk of electric shock.
+ Do not abuse the cord. Never use the cord for carrying, pulling or unplugging
the airless sprayer. Keep the cord away from heat, oil, sharp edges or moving
parts. Replace damaged cords immediately.
Damaged or entangled cords increase the risk of electric shock.
+ When operating an airless sprayer outdoors, use an outdoor extension cord
suitable for outdoor use. Use of a cord suitable for outdoor use reduces the
risk of electric shock.
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QTech QT290C Carry Airless Sprayer

PERSONAL SAFETY
+ Stay alert, watch what you are doing and use common sense when operating
an airless sprayer. Do not use while you are tired or under the inuence of
drugs, alcohol, or medication. A moment of inattention while operating airless
sprayers may result in serious personal injury.
+ Use safety equipment. Always wear eye protection. Safety equipment such as
dust mask, non-skid safety shoes, hard hat, or hearing protection used for
appropriate conditions will reduce personal injuries.
+ Avoid accidental starting. Ensure the switch is in the off position before
plugging in.
+ Do not overreach. Keep a proper footing and balance at all times.
This enables better control of the airless sprayer in unexpected situations.
+ Dress properly. Do not wear loose clothing or jewelry. Keep your hair,
clothing and gloves away from moving parts. Loose clothes, jewelry or long
hair can be caught in moving parts.
SERVICE
+ Have your airless sprayer serviced by a qualied repair person using only identical
replacement parts. This will ensure that the safety of the airless sprayer is maintained.
If the supply cord of this airless sprayer is damaged it must be replaced by a
specially prepared cord available through the service organization.
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PRESSURE RELIEF PROCEDURE
IMPORTANT! To avoid possible serious body injury, always follow this
procedure whenever the sprayer is shut off, when checking it, when
installing, changing or cleaning tips and whenever you stop spraying.
1Engage the gun safety latch.
2Turn the unit off and unplug it from the electrical outlet.
3Disengage the gun safety latch and trigger the gun to relieve residual uid
pressure. Hold metal part of the gun in contact with grounded metal pail.
4Turn the Priming Valve to the open (priming) position to relieve residual
uid pressure.
5Re-engage gun safety latch and close Priming Valve. If the SPRAY TIP OR
HOSE IS CLOGGED, follow Step 1 through 5 above. Expect paint splashing
into the bucket while relieving pressure during Step 4.
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SPECIFIC SAFETY RULES
HANDLE THIS UNIT AS YOU WOULD A LOADED WEAPON!
Extreme high pressure spray can cause extremely serious injury.
OBSERVE ALL WARNINGS
WARNING: HIGH PRESSURE
Never leave pressurized system unattended. Always follow the PRESSURE
RELIEF PROCEDURE. Take precautions to avoid high pressure
component rupture.
DANGER: INJECTION INJURY
Skin injection by high pressure paint is not a simple cut. It must be treated
surgically immediately.
WARNING: FIRE AND EXPLOSION HAZARD
Take all precautions to avoid sources of sparks and ignition when spraying.
Keep the machine at least 6 meters away from the spraying operation.
WEAR PROTECTIVE EQUIPMENT AT ALL TIMES
Always use a respirator, eye protection and protective clothing. Keep clear of
moving parts when starting or operating the sprayer. Do not put your ngers
into any openings to avoid amputation by moving parts or burns on hot parts.
When starting the motor, maintain a safe distance from moving parts of the
equipment. Before adjusting or servicing any mechanical part of the sprayer,
follow the PRESSURE RELIEF PROCEDURE.
EXPLOSION RISK FROM HALOGENATED HYDROCARBON SOLVENTS
Never use halogenated hydrocarbon solvents in this machine.
Contact with aluminum parts may cause an explosion.
Some of the most common of these solvents are:
Carbon Tetrachloride
Chlorobenzene
Dichloroethane
Dichloroethyl Ether
Ethyl Bromide
Ethyl Chloride
Tetrachloroethane
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QTech QT290C Carry Airless Sprayer

PREVENT STATIC SPARKING
FIRE/EXPLOSIONS
Vapors created when spraying can be ignited by sparks.
To reduce the risk of re, always locate the sprayer at least 20 feet (6 m.) away
from spray area. Do not plug in or unplug any electrical cords in the spray area.
Doing so can cause sparks which can ignite any vapors still in the air. Follow the
coating & solvent manufacturers safety warnings and precautions.
MEDICAL ALERT INJECTION INJURIES
If any uid appears to penetrate your skin, GET EMERGENCY MEDICAL CARE
AT ONCE. DO NOT TREAT AS AN ORDINARY CUT. High pressure uids from
spray or leaks are powerful enough to easily penetrate the skin and cause
extremely serious injection injury, leading to the possible need for amputation.
+ NEVER point the spray gun at anyone or any part of the body.
+ NEVER put your hand or ngers over the spray tip. Do not use a rag or
any other materials over your ngers. Paint will penetrate through these
materials and into the hand.
+ NEVER try to stop or deect leaks with your hand or body.
+ ALWAYS have the tip guard in place when spraying.
+ ALWAYS lock the gun trigger when you stop spraying.
+ ALWAYS remove tip from the gun to clean it.
+ NEVER try to "blow back" paint, this is not an air powered sprayer.
+ ALWAYS follow the PRESSURE RELIEF PROCEDURE before cleaning or
removing the spray tip or servicing any system equipment.
+ Be sure the equipment safety devices are operating properly before each use.
+ Tighten all of the uid connections before each use.
+ NEVER alter equipment in any manner.
+ NEVER smoke while in spraying area.
+ NEVER spray highly ammable materials.
+ NEVER use around children.
+ NEVER allow another person to use sprayer unless he is thoroughly
instructed on its safe use and given this operator’s manual to read.
+ ALWAYS wear a spray mask, gloves and protective eye wear while spraying.
+ ALWAYS ensure re extinguishing equipment is readily available and
properly maintained.
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NEVER LEAVE SPRAYER UNATTENDED WITH PRESSURE IN THE SYSTEM.
FOLLOW PRESSURE RELIEF PROCEDURES AT ALL TIMES.
ALWAYS INSPECT SPRAYING AREA
+ Keep the spraying area free from obstructions.
+ Make sure the spraying area has good ventilation to safely remove
vapors and mists.
+ NEVER keep ammable material in spraying area.
+ NEVER spray in vicinity of open ame or other sources of ignition.
+ The spraying area must be at least 6 metres away from spray unit.
SPRAY GUN SAFETY
+ ALWAYS set gun safety lock in the "LOCKED" position when not in use
and before servicing or cleaning.
+ NEVER remove or modify any part of the gun.
+ ALWAYS REMOVE THE SPRAY TIP when cleaning.
Flush unit at the LOWEST POSSIBLE PRESSURE.
+ ALWAYS check operation of all gun safety devices before each use.
+ Be very careful when removing the spray tip or hose from the gun.
A plugged line will contain uid under pressure. If the tip or line is plugged,
follow the PRESSURE RELIEF PROCEDURE.
TIP GUARD
+ ALWAYS have the tip guard in place on the spray gun while spraying. The
tip guard alerts you to the injection hazard and helps prevent accidentally
placing your ngers or any part of your body close to the spray tip.
SPRAY TIP SAFETY
+ Use extreme caution when cleaning or changing spray tips. If the spray tip
clogs while spraying, engage the gun safety latch immediately. ALWAYS
follow the PRESSURE RELIEF PROCEDURE and then remove the spray
tip to clean it.
+ NEVER wipe off build up around the spray tip.
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QTech QT290C Carry Airless Sprayer

TOXIC FLUID HAZARD
+ ALWAYS remove tip guard & tip to clean AFTER pump is turned off and the
pressure is relieved by following the PRESSURE RELIEF PROCEDURE.
+ Hazardous uid or toxic fumes can cause serious injury or death if splashed in
eyes or on skin, inhaled or swallowed. Know the hazards of the uid you are
using. Store and dispose of hazardous uid according to manufacturer, local,
state and national guidelines.
+ ALWAYS wear protective eyewear, gloves, clothing and respirator
as recommended by uid manufacturer.
HOSES
+ Tighten all of the uid connections securely before each use. High pressure
uid can dislodge a loose coupling or allow high pressure spray to be emitted
from the coupling and result in an injection injury or serious bodily injury.
+ Only use hoses with a spring guard. The spring guard helps protect the hose
from kinks or other damage which could result in hose rupture and cause an
injection injury. Do not allow kinking or crushing of hoses or allow it to vibrate
against rough, sharp or hot surfaces.
+ Use only conductive uid hoses for airless applications. Be sure the gun is
grounded through the hose connections. Use only high pressure airless hoses
with static wire which are approved for 3000 psi.
+ NEVER use a damaged hose, which can result in hose failure or rupture and
cause an injection injury or other serious bodily injury or property damage.
Before each use, check entire hose for cuts, leaks, abrasions, bulging of the
cover, or damage or movement of couplings. If any of these conditions exist,
replace the hose immediately.
+ NEVER use tape or any device to try to mend the hose as it cannot contain
the high pressure uid. NEVER ATTEMPT TO RECOUPLE THE HOSE.
It is not possible to recouple a high pressure hose .
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GROUNDING
+ Ground the sprayer and other components in the system to reduce the risk of
static sparking, re or explosion which can result in serious bodily injury and
property damage. For detailed instructions on how to ground, check your
local electrical code.
+ ALWAYS ensure switch is in OFF position before plugging unit in.
Always ground all of these components:
1Sprayer: plug the power supply cord, or extension cord, each equipped with
an undamaged three-prong plug, into a properly grounded outlet. DO NOT
USE AN ADAPTER. Use only a 3 wire extension cord that has a grounding
plug, and a receptacle that will accept the grounding plug on the product.
Make sure your extension cord is in good condition. When using an extension
cord, be sure to use one heavy enough to carry the current your product will
draw. If in doubt, use the next heavier gauge.
2Fluid hose: use only grounded hoses.
3Spray gun or dispensing valve: grounding is obtained through connection to
a properly grounded uid hose and pump.
4All solvent pails must be conductive metal material and properly grounded.
Do not place on a non conductive insulating surface unless a ground wire is
added to a true earth such as a metal water pipe. ALWAYS ensure re
extinguishing equipment is readily available and properly maintained.
FLUSHING SAFETY
WHEN SPRAYING & CLEANING WITH FLAMMABLE PAINTS AND THINNERS
1When spraying with ammable liquids, the unit must be located a minimum
of 25 feet away from the spraying area in a well ventilated area. Ventilation
must be sufcient enough to prevent the accumulation of vapors.
2To eliminate electrostatic discharge, ground the spray unit, paint bucket and
spraying object. See GROUNDING. Use only high pressure airless hoses
approved for 3000 psi which is conductive.
3Remove the spray tip before ushing. Hold the metal part of the gun rmly to
the side of a metal pail & use the lowest possible fluid pressure during flushing.
4Never use high pressure in the cleaning process. USE MINIMUM PRESSURE.
5Do not smoke in spraying/cleaning area.
NEVER use cleaning solvents with ash points below 60°C/140°F. Some of these
are: acetone, benzene, ether, gasoline, naphtha. Consult your supplier if in doubt.
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QTech QT290C Carry Airless Sprayer

ASSEMBLY
1Attach the hose to the pump and tighten with a wrench.
2Attach the hose to the gun and tighten with a wrench.
OPERATION
1New sprayer / before you start
Your sprayer was factory tested in an oil solution which was left in the pump.
Before using oil-base paint, ush with pump conditioner only. Before using
water-base paint ush with pump conditioner, followed by soapy water, then
a clean water ush.
2Changing colours
Flush with a compatible solvent such as pump conditioner or water.
3Changing from water-base to oil-base paint
Flush with soapy water, and then pump conditioner.
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FLUSHING
WHEN TO FLUSH
1Cleanup (for further detail turn to page 20).
2Changing from oil-base to water base paint. Flush with pump conditioner,
followed by soapy water, then a clean water ush.
3Storage. Always relieve pressure (see PRESSURE RELIEF PROCEDURE
page 8) prior to storage or when machine is unattended.
Oil-base paint: Flush with pump conditioner. Ensure that there is no pressure
in the unit, then close the priming valve.
Water-base paint: Flush with water, and then pump conditioner.
For longer term storage ll with pump conditioner.
Always ensure that there is no pressure in the unit, and close the prime/
pressure relief valve for storage.
4Start-up after storage. Before using water-base paint, ush with soapy water
and then with clean water. When using oil-base paint, ush out the pump
conditioner with the material to be sprayed.
HOW TO FLUSH
1Be sure the gun safety latch is engaged and there is no spray tip in the gun.
2Pour enough clean, compatible solvent into a large, empty metal pail to ll
the pump and hoses.
3Place the suction tube into the pail.
4Turn the Priming Valve to the ‘Open’, priming position.
5Point the gun into the metal pail and hold a metal part of the gun
rmly against the pail. To reduce the risk of static sparking which can cause
re or explosion, always hold a metal part of the gun rmly against the
metal pail when ushing. This also reduces splashing. Disengage the gun
safety latch and squeeze the gun trigger. Turn the ON/OFF Toggle Switch to
the "ON" position and turn Pressure Control Knob clockwise to increase
pressure just enough to start the pump.
6Close the priming valve. This will allow solvent to be ushed through the
pump, hoses and gun. Allow the unit to operate until clean solvent comes
from the gun.
7Release the trigger and engage the gun safety latch.
8Whenever you shut off the sprayer, follow the PRESSURE RELIEF
PROCEDURE.
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QTech QT290C Carry Airless Sprayer

SPRAYING
1Connect the hose and gun.
2Check the electrical service. Be sure the electrical service matches the rating
on the machine’s nameplate and that the outlet you use is properly grounded.
3Fill the packing nut/wet cup with a few drops of QLube Piston Lubricant.
4Flush the sprayer
aPrepare the media to be sprayed according to the material manufacturer's
recommendations.
bPlace the suction tube into the media container.
cPrime Valve must be ‘Open’ in the priming position.
dWhen you have ensured that the gun safety latch is engaged, attach tip
and safety guard.
eTurn the power switch to the ‘On’ position.
fAllow the pump to prime. After the pump is primed, immediately turn
the Prime Valve to the ‘Closed’ position.
gTurn Pressure Control Knob to the desired spray pressure.
hDisengage the gun safety latch and you are ready to spray.
5Adjusting the pressure
aTurn the Pressure Control Knob clockwise to increase pressure and
counterclockwise to decrease pressure.
bAlways use the lowest pressure necessary to completely atomize the
material. Note: Operating the sprayer at higher pressure than needed,
wastes material, causes early tip wear, and shortens sprayer life. It will
also result in the motor cycling on and off to maintain pressure. This
cycling will result in poor and inconsistent spraying results.
cIf more coverage is needed, use a larger tip rather than increasing
the pressure.
dCheck the spray pattern. The tip size and angle determines the pattern
width and ow rate. Spray a test pattern and then adjust the pressure to
eliminate heavy edges. Use a smaller tip size if the pressure adjustment
cannot eliminate heavy edges.
eWhile spraying, hold the gun perpendicular, about 25-30cm (10-12 inches)
away from the surface. Spray back and forth. Trigger the gun before
moving and release the trigger after each stroke. Overlap by 50%.
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WARNING
When you spray into the paint bucket, always use the lowest spray pressure
and maintain rm metal to metal contact between gun and container. To stop
the unit in an emergency, turn the motor off. Then relieve the uid pressure in
the pump and hose as instructed in the ‘Pressure Relief Procedure’.
WARNING
Follow the PRESSURE RELIEF PROCEDURE. To reduce the risk of injection,
never hold your hand, body, ngers or hand in a rag in front of the spray tip
when cleaning or checking for a cleared tip. Always point the gun toward the
ground or into a waste container when checking to see if the tip is cleared or
when using a self cleaning tip.
6Shutting off the sprayer
aWhenever you stop spraying, even for a short break, follow the PRESSURE
RELIEF PROCEDURE
bFlush the sprayer at the end of each work day, if the material you are
spraying is water-based, or if it could harden in the sprayer overnight.
Refer to FLUSHING on page 15 for more detail. Use a compatible solvent
to ush, and then ll the pump and hoses with an oil based solvent such
as QTector pump conditioner.
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QTech QT290C Carry Airless Sprayer

SPRAY GUN
Attach spray gun to airless unit and tighten ttings securely. Set the gun safety
latch. The gun safety latch should always be set when the gun is not being
triggered. Read all warnings and safety precautions supplied with the spray gun
and in product manual.
SPRAY TIP ASSEMBLY
1Be sure PRESSURE RELIEF
PROCEDURE is followed before
assembling tip and housing to
the gun.
2Lock gun safety latch.
3Insert Tip into the guard housing
assembly.
4Guide metal seat into guard housing
assembly through retaining nut and turn
until it seats against the cylinder.
5Insert O-Ring gasket on metal seat so it ts in the grooves.
6Finger tighten guard housing retaining nut onto the gun.
7Turn guard in the desired position.
8Completely tighten the retaining nut.
TO REMOVE CLOGS FROM SPRAY TIP
1Lock gun safety latch.
2Turn tip handle 180 degrees.
3Disengage trigger lock & trigger gun into pail.
4If the tip handle appears locked loosen the retaining nut. The handle will now
turn easily.
5Engage gun safety latch and return handle to the spray position.
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19
CLEANING GUN HANDLE FILTER
Immediately after the work is nished, ush the gun out with a solvent. Brush
pins with solvent and oil them lightly so they will not collect dried paint. To clean
the lter, use a brush dipped in an appropriate solvent. Change or clean lters at
least once a day. Some types of latex may require a lter change after about
four hours of operation.
SPRAY TIP SELECTION
Spray tip selection is based on paint viscosity, paint type, and job needs.
Generally, use a smaller tip for light viscosities (thin paints), and use a larger tip
for heavier viscosities (thicker paints). Spray tip size is based on how many
litres of paint per minute can be sprayed through the tip. Do not use a tip
larger than the maximum pump ow rate or capacity the sprayer can
accommodate. Pump ow rate is measured in litres per minute (LPM).
PATTERN WIDTH
Two tips having the same tip size, but different pattern widths will deliver the
same amount of paint over a different area (wider or narrower strip). A spray tip
with a narrow pattern width makes it easy to spray in tight places. Thickness of
the paint coat per stroke is determined by spray tip "fan width", rate of the spray
gun movement, and distance to surface.
SPRAY TIP REPLACEMENT
During use, especially with latex paint, high pressure will cause the orice to
grow larger. This destroys the pattern. Replace tips before they become
excessively worn. Worn tips waste paint, cause overspray, make cutting-in
difcult, and decrease sprayer performance. If the tip is the maximum rated size,
when it wears, it will exceed the ow rate capacity of the sprayer. If when using
maximum capacity tip size the pump cannot keep up, then you know that the tip
is worn beyond capacity.
QTech QT290C Carry Airless Sprayer

CLEANUP PROCEDURE
1Perform pressure relief procedure.
2Place pickup tube in a bucket of ushing uid. (Use water for water base
paint and QTector pump conditioner for oil base paint).
3Turn the power on. Close priming valve.
4Increase pressure to half. Hold the gun against the paint pail.
Take off the trigger safety. Trigger the gun until ushing uid appears.
5Move the gun to a waste pail. While holding the gun against the pail, trigger
the gun to thoroughly ush the system. Release the trigger and put the
trigger safety on.
6Open the priming valve and allow the ushing uid to circulate for 15 seconds
(to clean the drain tube).
7Raise the pickup tube out of the ushing uid and run the sprayer
for 20-30 seconds to drain the uid.
8Close the priming valve. Trigger the gun into ushing pail to purge the hose.
9Turn the power off.
10 Open the priming valve.
11 Unplug the sprayer.
12 Remove the lters from the pump and gun. Clean and replace.
13 If ushing was with water, ush again with QTector pump conditioner to
prevent corrosion inside the pump. (For long term storage, leave pump full of
undiluted QTector).
14 Clean the exterior of the sprayer with rag soaked in pump conditioner.
DAILY MAINTENANCE
1Keep the displacement pump packing nut/wet cup lubricated with
QLube piston lubricant at all times. Add a drop of oil with regular use to the
top of the pump. This helps protect the rod and the packings.
2Inspect the packing nut daily. If seepage of paint into the packing nut and/or
movement of the piston upward is found (while not spraying), the packing
nut should be tightened enough to stop leakage only, but not any tighter.
Over tightening will damage the packings and reduce the packing life.
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PACKINGS
The packings are a wearing part. If the pump can no longer maintain pressure,
has difficulty priming and paint seeps into the throat of the pump, and tightening
the packing nut no longer helps, then the packings will require replacement.
This is best entrusted to a qualied repair technician.
To remove the pump and replace the packings, follow the instructions below:
PUMP REMOVAL
1Remove the high pressure hose (62) from the back of the pump housing
using a 17mm spanner.
2Unclip the drain tube (54) from the clips (30) on the suction pipe.
3Loosen the gland nut (3) and remove with the suction tube (2) from the bottom
of the pump. At the same time remove O-ring (5), check ball (6) & ball cage (7).
4Using a small at screwdriver turn the fan motor at the back of the pump
until the piston is at its lowest point. This will allow the snap ring (23) to be
removed. This in turn will allow you to push out the piston wrist pin (25).
5Unscrew the uid pump housing (8) from the gear head (37) and you will
have removed the complete pump section ready for servicing.
6Replacement of the pump section is the reverse of removal. Make sure the
pump wrist pin (25) is inserted correctly with the retaining ring (23) back in
place to stop the wrist pin from moving.
PACKINGS REPLACEMENT
1Loosen the packing nut with the packing bar provided and remove.
2Push out the piston through the bottom.
3Remove all parts and clean. Clamp the piston and in the bottom of the piston,
remove the socket set screw (13) to allow removal of the small ball seat (15),
and check ball (16).
4Discard all old packings.
5Soak the new leather packings in W30 oil for at least one hour before
assembling.
6Replace the packings, glands, O-rings and check balls with the new parts
from the rebuild kit. Strictly follow the exact order and orientation.
7Thread the packing nut loosely. Push the piston up through the pump uid
section. Tighten the packing nut until resistance from the disc springs is felt.
Tighten a further 3/4 turn but be careful. Do not over tighten.
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QTech QT290C Carry Airless Sprayer

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Fluid Pump
SUCTION FILTER QUICK REFERENCE
MESH/THREAD PRODUCT CODE
15 mesh / 1/2” thread QF0535015B
30 mesh / 1/2” thread QF0535030B
60 mesh / 1/2” thread QF0535060B
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Fluid Pump
QTech QT290C Carry Airless Sprayer
ITEM PRODUCT CODE DESCRIPTION QTY
01 Quick ref table SUCTION FILTER 1
02 12-290C-002 SUCTION TUBE 1
03 12-290C-001 GLAND NUT 1
04 12-290C-003 SUCTION LOWER SEAT 1
05 12-005 O-RING (Ø28.4xØ35.3x3.5) 1
06 12-006 LOWER CHECK BALL (Ø12.7) 1
07 12-007 BALL CAGE 1
08 12-290-010B PUMP HOUSING 1
09 12-003 OUTPUT NIPPLE 1
10 12-290-011B RETAINING NUT 1
11 12-002 PACKING KIT COMPLETE, INCLUDES ITEMS 05, 06, 11 1
12 12-008 PACKING SPACER 1
13 12-015 BALL SEAT FASTENER 1
14 12-011 O-RING (Ø9 x Ø13 x 2) 1
15 12-010 BALL SEAT (Ø4xØ13.8x4) 1
16 12-012 UPPER CHECK BALL (Ø6.35) 1
17 12-290-022 COMPLETE DISPLACEMENT PISTON (see below) 1
18 12-009 DISC SPRING (Ø18xØ34.7x1) 3
19 12-014 O-RING - VITON 1
20 12-013 O-RING - TEFLON 1
21 12-019 SEAL SEAT (Ø27xØ35) 1
22 12-018 PACKING NUT (M38xP1.5) 1
23 12-290-032 RETAINING RING (Ø1.2xØ24.8) 1
24 12-290-034 DRIVE WRIST PIN (Ø16x32) 1
25 12-290-033 PUMP WRIST PIN (Ø9.5x25) 1
26 12-290-035 DRIVE PISTON 1
27 12-290-038 INTERNAL CIRCLIP 1
28 12-290-039 BUSHING (Ø38xØ44x43) 1
29 12-190-094 TUBE HOLDER (Ø11/Ø22) 2
30 12-290C-004 TUBE HOLDER (Ø11/Ø28) 3
12-290-022 DISPLACEMENT PISTON COMPLETE
INCLUDES ITEMS 13, 14, 15, 16, 17
12-290C-500
FLUID PUMP COMPLETE,
INCLUDES ITEMS 03, 07, 08, 09, 10, 11, 12, 13, 14, 15, 16, 17,
18, 19, 20, 21, 22
Fluid Pump | ready to t assemblies

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Motor & Gearbox
ITEM PRODUCT CODE DESCRIPTION QTY
36 12-290-051 SOCKET CAP SCREW (M5 x 35) 6
37 12-290-050B GEAR HOUSING 1
38 12-290-053 BALL BEARING 1
39 12-137 MACHINE SCREW (M5 x 8) 2
40 12-290-055 CONNECTING ROD 1
41 12-290-056 NEEDLE BEARING 1
42 12-290-057 CRANK GEAR (6.9 STROKE) 1
43 12-290-060 BALL BEARING 1
44-112-290C-062-1MOTOR UNIT (110V) 1
44-212-290C-062-2MOTOR UNIT (220V) 1
45 12-290-065 CARBON BRUSH (8x16) 2
46 12-290-064 BRUSH CAP (8x16) 2
47 12-290C-020 FRONT HANDLE 1
48 12-139 SOCKET CAP SCREW (M8 x 16) 2
49 12-290-050B HOUSING COVER 1
50 12-290-069 SOCKET CAP SCREW (M5 x 55) 4
51 12-290-061 SOCKET CAP SCREW (M5 x 12) 4
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Control
Box
ITEM PRODUCT CODE DESCRIPTION QTY
65 12-290-092 HEX NUT (M4) 6
66 12-290C-094 U-BRACKET 2
67 12-290-093 SOCKET CAP SCREW (M4 x 12) 6
68 12-290C-090 CONTROL BOX 1
69 12-290-096 PANHEAD MACHINE SCREW (M4 x 10) 1
70 12-290-097 EARTHING MARKING 1
71 12-017 PANHEAD TAPPING SCREW (M4x12) 4
72-112-290-091-1ELECTRONICS UNIT (110V) 1
72-212-290-091-2ELECTRONICS UNIT (220V) 1
73 12-290-100 CURRENT PROTECTOR 1
74 12-290-120 SPEED CONTROL (110V&220V) 1
75 12-135 SOCKET SET SCREW (M4 x 8) 1
76 12-064 SUCTION POWER CONTROL DIAL 1
77 12-290-108 HEX NUT (M3) 4
78 12-290C-091 LCD DISPLAY (110V&220V) 1
79 12-290-106 WINDOW 1
80 12-290-105 MACHINE SCREW (M3 x 12) 4
81 12-290-115 POWER SWITCH (110V&220V) 1
82 12-290C-092 INTEGRATED SWITCHING SOCKET (110V&220V) 1
83 12-290C-093 POWER SOCKET HOUSING 1
84-112-290C-095-1POWER SUPPLY CABLE (UK-110V YELLOW 3 PIN) 1
84-212-290C-095-2POWER SUPPLY CABLE (UK-240V 13A BS 3PIN) 1
84-312-290C-095-3POWER SUPPLY CABLE (AU-220V 10A AU PLUG) 1
85 12-290-111 WIRE LEAD (23CM) 2
86 12-290-110 WIRE LEAD (17CM) 1
87 12-290-116 CABLE GLAND 1
88 12-062 PUSH BUTTON SWITCH 1
89 12-290C-097 WIRE LEAD (BLUE) 1
90 12-290C-098 WIRE LEAD (BROWN) 1
91 12-290C-099 WIRE LEAD (EARTH) 1
QTech QT290C Carry Airless Sprayer

26
Fluid
Manifold
MANIFOLD FILTER QUICK REFERENCE
MESH/COLOUR CODE
15 mesh / grey QF0571030
60 mesh / black QF0571060
100 mesh / blue QF0571100
200 mesh / red QF0571200
ITEM PRODUCT CODE DESCRIPTION QTY
54 12-190-059 DRAIN TUBE (PT1/8"x1.28M) 1
55 12-290-061 SOCKET CAP SCREW (M5 x 12) 8
56 12-070 BRACKET 1
57 12-143 HEX NUT (M5) 4
58 12-290C-071 FILTER HOUSING - ALU 1
59 12-063 PRESSURE TRANSDUCER (110V&220V) 1
60 Quick ref table MANIFOLD FILTER 1
61 12-290C-070 FILTER CAP - ALU 1
62 12-290-085 HIGH PRESSURE HOSE (1/4"-18UNF) 1
63 12-003 OUTPUT NIPPLE 2
64 12-290-075 PRIMING VALVE 1
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Frame
ITEM PRODUCT CODE DESCRIPTION QTY
100 12-290C-021 FRAME 1
101 12-290C-022 END CAP - INNER 4
102 12-290C-023 END CAP - OUTER 4
103 12-001 PACKING NUT TOMMY BAR 1
104 Q400-005 Q-LUBE PISTON LUBRICANT 1
105 12-290-300 PUMP BODY WRENCH 1
106 12-290C-024 PAINT DRIP CUP 1
107 61415EETD TOUGHFLOW HOSE 1/4" x 15M 1
NOT SHOWN IN DIAGRAM
100045R SPRAY GUN / HOSE WRENCH 2
503-150 SPRAY GUN c/w GUARD & 517 TIP 1
QTech QT290C Carry Airless Sprayer

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Wiring Diagram
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QTech QT290C Carry Airless Sprayer

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QTechSpray.com
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QTech QT290C Carry Airless Sprayer