SprayTECH 1420 User manual

English
2
2
Owner’s manual
Read this manual for complete instructions
1-800-686-8525
Wagner Technical Service
1770 Fernbrook Lane, Plymouth, MN 55447
http://www.wagnerspraytech.com
Visit us on the world wide web!
Table of Contents
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3
Components and Description . . . . . . . . . . . . . . . . . .4-5
Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Before You Begin . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Locking the Spray Gun . . . . . . . . . . . . . . . . . . .7
Plugging in the Sprayer . . . . . . . . . . . . . . . . . . .7
Pressure Relief Procedure . . . . . . . . . . . . . . . .7
Purging and Priming the Sprayer . . . . . . . . . . . . . . . . .8
Purging and Priming the Spray Hose . . . . . . . . . . . . . .9
Practice / Spraying Technique . . . . . . . . . . . . . . . . . .10
Spraying Troubleshooting . . . . . . . . . . . . . . . . . . .11-12
Unclogging the Spray Tip . . . . . . . . . . . . . . . .11
Cleaning the Spray Gun Filter . . . . . . . . . . . . .12
Cleaning the Inlet Filter . . . . . . . . . . . . . . . . . .12
Cleanup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13-17
Cleanup for Latex materials . . . . . . . . . . . .13-14
Cleanup for Oil-based materials . . . . . . . . . . .15
Cleaning the Suction Set . . . . . . . . . . . . . . . . .16
Cleaning the Spray Gun Components . . . . . .17
Short-Term Storage . . . . . . . . . . . . . . . . . . . . . . . . . .18
Long-Term Storage . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Cleaning the Inlet Valve . . . . . . . . . . . . . . . . . . . . . . .20
Fluid Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Troubleshooting / Maintenance . . . . . . . . . . . . . . . . .22
Français . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46-49
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52
Need Help? Call us first for answers
fast. Call Wagner Spray Tech toll-free if you
have any comments or problems with this product.
This pump is available in a stand model (1420) and cart models
(1620, 1720 and 1920). All information given for the stand model
applies to the cart models except where indicated.
0607 • Form No. 0523813A
Technical service hours: Monday through Friday, 8:00 am to 7:00 pm Central Time
Saturday,9:00 am to 3:30 Central Time

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English
Important Safety Information •Read all safety information before
operating the equipment. Save these instructions
Indicates a hazardous situation which, if not avoided, could
result in death or serious injury.
HAZARD: INJECTION INJURY
A high pressure paint stream produced by this
equipment can pierce the skin and underlying tissues,
leading to serious injury and possible amputation. SEE A
PHYSICIAN IMMEDIATELY.
DO NOT TREAT AN INJECTION INJURY AS A SIMPLE CUT!
Injection can lead to amputation. See a physician immediately.
The maximum operating range of the gun is 3000 PSI/207 BAR
fluid pressure.
PREVENTION:
• NEVER aim the gun at any part of the body.
• Do not aim the gun at, or spray any person or animal.
• NEVER allow any part of the body to touch the fluid stream. DO
NOT allow body to touch a leak in the fluid hose.
• NEVER put your hand in front of the gun. Gloves will not provide
protection against an injection injury.
• ALWAYS lock the gun trigger, shut the pump off, and release all
pressure before servicing, cleaning the tip or guard, changing tip,
or leaving unattended. Pressure will not be released by turning off
the motor. The PRIME/SPRAY knob must be turned to PRIME to
relieve the pressure. Refer to the PRESSURE RELIEF
PROCEDURE (page 7) described in the pump manual.
• ALWAYS keep the tip guard in place while spraying. The tip guard
provides some protection but is mainly a warning device.
•ALWAYS remove the spray tip before flushing or cleaning the
system.
• Paint hose can develop leaks from wear, kinking and abuse. A
leak can inject material into the skin. Inspect the hose before each
use. Do not use hose to lift or pull equipment.
• NEVER use a spray gun without a working trigger lock and trigger
guard in place.
• All accessories must be rated at or above 3000 PSI/207 BAR.
This includes spray tips, guns, extensions, and hose.
HAZARD: HAZARDOUS VAPORS
Paints, solvents, insecticides, and other materials can be
harmful if inhaled or come in contact with the body.
Vapors can cause severe nausea, fainting, or poisoning.
PREVENTION:
• Use a respirator or mask if vapors can be inhaled.
Read all instructions supplied with the mask to be
sure it will provide the necessary protection.
• Wear protective eyewear.
• Wear protective clothing as required by coating manufacturer.
NOTE TOPHYSICIAN:
Injection into the skin is a traumatic injury. It is important to treat
the injury as soon as possible. DO NOT delay treatment to
research toxicity. Toxicity is a concern with some coatings
injected directly into the blood stream. Consultation with a plastic
surgeon or reconstructive hand surgeon may be advisable.
HAZARD: EXPLOSION OR FIRE
Solvent and paint fumes can explode or ignite. Property
damage and/or severe injury can occur.
PREVENTION:
• Provide extensive exhaust and fresh air introduction to keep the air
within the spray area free from accumulation of flammable vapors.
Solvent and paint fumes can explode or ignite.
• Do not spray in a confined area.
•Avoid all ignition sources such as static electric
sparks, open flames, pilot lights, electrical appliances,
and hot objects. Connecting or disconnecting power cords or
working light switches can make sparks. Paint or solvent flowing
through the equipment is able to result in static electricity.
• Do not smoke in spray area.
• Fire extinguisher must be present and in good working order.
• Place paint pump at least 20 feet from the spray object in a well
ventilated area (add more hose if necessary). Flammable vapors
are often heavier than air.Floor area must be extremely well
ventilated.
• The equipment and objects in and around the spray area must be
properly grounded to prevent static sparks.
• Keep area clean and free of paint or solvent containers, rags and
other flammable materials.
• Use only conductive or grounded high pressure fluid hose. Gun
must be grounded through hose connections.
• Power cord must be connected to a grounded circuit.
• Always flush unit into a separate metal container, at low pump
pressure, with spray tip removed. Hold gun firmly against side of
container to ground container and prevent static sparks.
• Follow the material and solvent manufacturer's warnings and
instructions. Know the contents of the paints and solvents being
sprayed. Read all Material Safety Data Sheets (MSDS) and
container labels provided with the paints and solvents. Follow the
paint and solvent manufacturer’s safety instructions.
•Use extreme caution when using materials with a flashpoint below
70ºF (21ºC). Flashpoint is the temperature that a fluid can produce
enough vapors to ignite.
• Plastic can cause static sparks. Never hang plastic to enclose a
spray area. Do not use plastic drop cloths when spraying
flammable materials.
•Use lowest possible pressure to flush equipment.
• Do not spray onto pump assembly.
HAZARD: EXPLOSION HAZARD DUE TO
INCOMPATIBLE MATERIALS
Will cause property damage or severe injury.
PREVENTION:
• Do not use materials containing bleach or chlorine.
•Do not use halogenated hydrocarbon solvents such as bleach,
mildewcide, methylene chloride and 1,1,1 - trichloroethane. They
are not compatible with aluminum.
•Contact your coating supplier about the compatibility of material
with aluminum.
To reduce the risks of fire or explosion, electrical shock and the injury to persons, read and understand all instructions included in
this manual. Be familiar with the controls and proper usage of the equipment.

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HAZARD: GENERAL
Can cause severe injury or property damage.
PREVENTION:
• Read all instructions and safety precautions before operating
equipment.
• Follow all appropriate local, state, and national codes governing
ventilation, fire prevention, and operation.
• The United States Government Safety Standards have been
adopted under the Occupational Safety and Health Act (OSHA).
These standards, particularly part 1910 of the General Standards
and part 1926 of the Construction Standards should be consulted.
• Use only manufacturer authorized parts. User assumes all risks
and liabilities when using parts that do not meet the minimum
specifications and safety requirements of the pump manufacturer.
• Before each use, check all hoses for cuts, leaks, abrasion or
bulging of cover. Check for damage or movement of couplings.
Immediately replace the hose if any of these conditions exist.
Never repair a paint hose. Replace it with another grounded high-
pressure hose.
• All hoses, fittings, and filter caps must be secured before operating
spray pump. Unsecured parts may eject at great force or leak a
high pressure fluid stream causing severe injury.
• All hoses, swivels, guns, and accessories must be pressure rated
at or above 3000 PSI/207 BAR.
• Do not spray outdoors on windy days.
• Wear clothing to keep paint off skin and hair.
• Do not operate or spray near children. Keep children away from
the equipment at all times.
• Do not overreach or stand on an unstable support. Keep effective
footing and balance at all times.
• Stay alert and watch what you are doing.
• Do not operate the unit when fatigued or under the influence of
drugs or alcohol.
Important Electrical Information
NOTICE
Use only a 3-wire extension cord that has a 3-blade grounding plug and
a3-slot receptacle that will accept the 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. An undersized cord will cause a drop in line voltage
resulting in loss of power and overheating. A 14 or 12 gauge cord is
recommended (see chart below). If an extension cord is to be used
outdoors, it must be marked with the suffix W-A after the cord type
designation. For example, a designation of SJTW-A would indicate that
the cord would be appropriate for outdoor use.
Do not use more than 100 feet of spray hose. If you need to
spray further than 100 feet from your power source, use
more extension cord, not more spray hose.
Cord gauge Maximum cord length
12 200 feet
14 100 feet
NOTICE
THE 1420 AND 1620 SERIES UNITS ARE PROVIDED WITH A NON-
RESETABLE THERMAL OVERLOAD. THE 1720 AND 1920 SERIES
UNITS ARE PROVIDED WITH A REPLACEABLE FUSE.
• Always disconnect the motor from the power supply before working
on the equipment.
Grounding Instructions
This product must be grounded. In the event of an electrical short
circuit, grounding reduces the risk of electric shock by providing an
escape wire for the electric current. This product is equipped with a
cord having a grounding wire with an appropriate grounding plug. The
plug must be plugged into an outlet that is properly installed and
grounded in accordance with all local codes and ordinances.
Improper installation of the grounding plug can
result in a risk of electric shock.
If repair or replacement of the cord or plug is necessary,do not connect
the green grounding wire to either flat blade terminal. The wire with
insulation having a green outer surface with or without yellow stripes is
the grounding wire and must be connected to the grounding pin.
Check with a qualified electrician or serviceman if the grounding
instructions are not completely understood, or if you are in doubt as to
whether the product is properly grounded. Do not modify the plug
provided. If the plug will not fit the outlet, have the proper outlet
installed by a qualified electrician.
This product is for use on a nominal 120 volt circuit and has a
grounding plug that looks like the plug illustrated below.Make sure that
the product is connected to an outlet having the same configuration as
the plug. No adapter should be used with this product.
If you experience problems with your
sprayer at any time during assembly,
operation, or cleanup, please refer to
the Troubleshooting section of this
manual (page 22), or call customer
service at:
1-800-686-8525
Grounded Outlet
Grounding Pin
Cover for grounded outlet box
The cause of the overload should be corrected before
restarting. Take unit to Service Center.
Important Safety Information •Read all safety information before
operating the equipment. Save these instructions

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English
Components and Description
Capacity:
1420..........................Up to .25 gallon (0.95 liters) / minute
1620..........................Up to .29 gallon (1.10 liters) / minute
1720 .........................Up to .33 gallon (1.25 liters) / minute
1920..........................Up to .42 gallon (1.60 liters) / minute
Power source:
1420..........................1/2 Hp universal motor
1620..........................5/8 Hp universal motor
1720..........................3/4 Hp permanent magnet DC motor
1920 .........................7/8 Hp permanent magnet DC motor
Power requirement:
15 amp minimum circuit on 115 VAC, 60 Hz current
Generator requirement:
8000 Watt
Safety features:
Spray gun trigger lock and pressure diffuser; built-in tip
safety guard; PRIME/SPRAY knob for safe pressure
release.
Capability:
Sprays a variety of paints, oil base latex, primers, stains,
preservatives and other nonabrasive materials, including
pesticides and liquid fertilizers.
This pump should not be used with textured
materials, block filler, or asphalt sealer.
Specifications
ON/OFF Switch...........The ON/OFF switch turns the power to the sprayer on and off (O=OFF, l=ON).
Suction tube .............Fluid is drawn through the suction tube into the pump.
Fluid Section ............A piston in the fluid section moves up and down to create the suction that draws fluid through the
suction tube.
Spray Gun...............The spray gun controls the delivery of the fluid being pumped. The gun model you have depends on
your sprayer model (refer to Spray Gun/Tip Chart, next page).
Spray Hose ..............The spray hose connects the gun to the pump.
Return Tube .............Fluid is sent back out through the return tube to the original container when PRIME/SPRAY knob is in
PRIME position.
Pump Cleaning Adapter ...The adapter allows you to attach a garden hose to the suction tube for easy cleanup (latex materials only).
PRIME/SPRAY Knob . . . . . . The PRIME/SPRAY knob directs fluid to the spray hose when set to SPRAY or the return tube when set
to PRIME. The arrows on the PRIME/SPRAY knob shows the rotation directions for PRIME and SPRAY.
The PRIME/SPRAY knob is also used to relieve pressure built up in the spray hose (see Pressure
Relief Procedure,page 7).
Pressure Control Dial .....The pressure control dial regulates the amount of force the pump uses to push the fluid.
Oiler....................(1620, 1720, 1920 only) The oiler is designed to provide lubrication to the fluid section of the pump.
Pusher stem .............The pusher stem is designed to keep the inlet valve open and from sticking due to dried materials.
Toolmate™ tool box.......The Toolmate™ provides a place for spray gun and spray tip storage when they are not in use.
Controls and Functions
The shipping carton for your painting system contains the following:
Components
• Suction tube and return tube
• Pump cleaning adapter
•Spray gun with filter
•Spray tip assembly (see chart on next page)
•25’ (1420, 1620) or 50’ (1720, 1920), 1/4” diameter pressure hose
•Separating Oil
•Instruction manual
•Hose bracket (all cart units)
• Pail bracket (all cart units)

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Components and Description
1620
1720
1920
GX-07
GX-07
GX-08
415
517
517
517
519
521
Yellow (fine)
1420 GX-05 415 415 Yellow (fine)
White (medium)
White (medium)
25 feet
25 feet
50 feet
50 feet
This pump is available in a stand model (1420) and cart models (1620, 1720 shown below, and 1920). All information given
for the stand model applies to the cart models except where indicated.
*Saddle seatand washer
come pre-assembled
inside spray guard
Saddle
seat*
Washer*
Oiler (1620, 1720
and 1920 only)
Spray hose port
(reverse side)
Pail bracket
Oiler button
Pusher stem
Suction set filter
Suction tube
Return tube
Clip
Hose bracket
PRIME/SPRAYknob
ON / OFF switch
Cord wrap / Tip holder (1620,
1720 and 1920 only)
Toolmate™Tool box
(1720 and 1920 only)
Spray hose
Spray gun (see chart above
for models, GX-07 shown)
Spray guard
Spray tip (see
chart above
for models)
**The pump cleaning
adapter can be clipped
to the spray hose port
Pump cleaning
adapter**
Pressure control dial
(rear of sprayer)
Important
Some of the graphics in this manual may not exactly match your sprayer and spray gun. All information and instructions
given in this manual applies to all models except where noted.

Do not plug in the sprayer until setup is complete.
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English
•Two adjustable wrenches
• 3/16” Allen wrench
Tools needed for assembly:
Ifyou have one of the cart models (1620, 1720 or 1920), follow these assembly instructions. If you have the model 1420
sprayer, skip to item 4, below.
1. Twist the knobs on either side of the
handle counterclockwise to unlock
the handle. Pull the handle out fully,
and turn knobs clockwise to lock
into place.
3. Attach the pail bracket. Line up the
holes in the bracket with the holes in
the sprayer. Insert and tighten the
screws using a 3/16” allen wrench.
2. Insert the ends of the hose bracket
into the holes of the handle as
shown.
4. Thread the high pressure hose to the spray hose port.
Tighten with an adjustable wrench.
5. Thread the other end of the hose to the spray gun. Hold
the gun with one adjustable wrench, and tighten the hose
nut with the other.
6. Thread the suction
tube onto the inlet
valve and tighten
firmly by hand. Be
sure that the threads
are straight so that
the fitting turns freely.
7. Press the return
tube onto the
return tube fitting.
Squeeze clip
over the return
tube fitting to
secure the return
tube.
The spray tip SHOULD NOT
be attached until after the
sprayer and spray hose have
been purged and primed.
•Extension cord (refer to Important Electrical
Information (page 3).
8. Verify that the seal is
present inside the
suction tube. Thread
the inlet filter into the
end of the suction
tube.
Assembly

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Before you begin - This section contains instructions that
will be repeated throughout this manual.
Always lock the trigger off when attaching the spray tip or when the spray gun is not in use.
Model GX-05 and GX-07 Spray Gun
The gun is locked when the trigger lock is at a 90º angle
(perpendicular to the trigger in either direction).
Model GX-08 Spray Gun
To lock the gun, turn the trigger lock forward and
slightly down until it stops.
1. Check that the ON/OFF switch is in the OFF (O) position. 2. Plug the power cord into a grounded outlet or heavy duty
grounded extension cord. Plug in the extension cord.
Refer to Important Electrical Information, page 3.
O
O
1. Lock the spray gun off(see
directions above).Flip the
ON/OFF switch to the OFF position.
3. Unlock the spray gun and trigger
spray gun into the side of the
material bucket. Lock the spray gun.
2. Turn the PRIME/SPRAY knob to
PRIME.
Be sure to follow the Pressure Relief Procedure when shutting the unit off FOR ANY PURPOSE. This
procedure is used to relieve pressure from the spray hose.
SPRAY
PRIME
GX-05 GX-07
Plugging in the Sprayer:
Pressure Relief Procedure:
Locking the Spray Gun:

(a)
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English
Purging and Priming the Sprayer
All new units are performance-tested at the factory and are shipped with test fluid in the fluid section to prevent
corrosion during shipment and storage. If you have already used your pump, some water or solvent used in cleaning
may remain in the fluid section. Whether your sprayer is new or if you have already used it, this fluid must be purged
and thoroughly cleaned out of the system prior to use. Follow the steps below.
1. Remove oiler cap using a straight-slot
screwdriver. Squirt separating oil P/N
0516915 supplied with your sprayer
into the oiler (approximately 1 ounce).
Light household oil can be substituted
if necessary. Replace cap.
2. After filling, push button on front of
face plate 2-5 times to lubricate the
fluid section. Press once for every
eight hours of usage. Be sure to
check reservoir level (a) and refill as
necessary.
5. Turn the pressure control dial to maximum pressure (+).
Turn the PRIME/SPRAY knob to PRIME.
6. Plug in the sprayer and move the ON/OFF switch to the
ON (l) position.
7. Switch the pump OFF (O). Remove the return tube from
the waste container and place it in its operating position
above the container of spraying material. Use the metal
clip to bind the two hoses together.
l
The unit will begin to draw material up the suction tube,
into the pump, and out the return tube. Let the unit cycle
long enough to remove test fluid from the pump, or until
spray material is coming from the return tube.
(b)
(a)
SPRAY
PRIME
4. Place a full container of spraying material underneath the
suction tube (a).Secure the return tube (b) into a waste
container.
3. Fully depress the pusher stem to
make sure the inlet ball is free.
1620, 1720 and 1920 only.

O
SPRAY
PRIME
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Purging and Priming the Spray Hose
1. Unlock the spray gun and turn the PRIME/SPRAY knob to
PRIME.
2. PULL the trigger and aim the spray gun at the side wall of
awaste container. If using oil-based materials, the
spray gun must be grounded while purging (see
warning below).
SPRAY
PRIME
The spray tip SHOULD NOT
be attached to your spray
gun when purging your
spray hose.
Keep hands clear from fluid stream.
Ground the gun by holding it against the
edge of a metal container while flushing.
Failure to do so may lead to a static electric
discharge which may cause a fire.
3. While pulling the trigger, switch the pump ON (l), AND
turn the PRIME/SPRAY knob to SPRAY.Hold the trigger
until all air,water, or solvent is purged from the spray
hose and material is flowing freely.
5. Lock the spray gun off. Make sure the saddle and
black seal are in place inside the tip guard nut (refer
to Components and Description,page 5). Thread the
spray tip guard assembly onto the gun. Tighten by hand.
Begin
tightening
the tip at
this angle
. . .to achieve
the desired
spray angle
when tight.
4. Release trigger. Turn the PRIME/SPRAY knob to PRIME.
Turn the pump OFF (O). Trigger the gun into the waste
container to be sure that no pressure is left in the hose.
SPRAY
PRIME
If the PRIME/SPRAY knob is still on SPRAY,
there will be high pressure in the hose and
spray gun until the PRIME/SPRAY knob is
turned to PRIME.

10
English
Good spray pattern
Paint tailing pattern
(pressure too low,
clogged tip)
1. Switch the pump ON (l).Turn the PRIME/SPRAY knob to
SPRAY. Turn the pressure control dial to maximum
pressure (+). The spray hose should stiffen as paint
begins to flow through it.
2. When motor shuts off, unlock the spray gun and spray a
test area to check the spray pattern.
The motor will cycle on and off automatically as it needs
pressure.
The pressure control dial can be be adjusted up or down
to achieve the desired spray pattern.
NOTE - Be sure that the paint hose is free of kinks and clear of objects with sharp cutting edges.
The key to a good job is an even coating over the entire surface.
This is done by using even strokes. Follow the TIPS, below.
Approximately
10 to 12 inches
Keep stroke
even
Start
stroke End stroke
Pull
trigger Release trigger
Move
steadily
Keep the spray gun at right angles to the
surface. This means moving your entire
arm back and forth rather than just flexing
your wrist.
Approximately
10 to 12 inches
Right wayRight way
Wrong way
Keep the spray gun perpendicular to the
surface, otherwise one end of the pattern
will be thicker than the other.
Heavy CoatLight Coat
Incorrect Incorrect
Correct
Light Coat
Trigger gun after starting the stroke. Release
the trigger before ending the stroke. The
spray gun should be moving when the trigger
is pulled and released. Overlap each
stroke by about 30%. This will ensure an
even coating.
Tip:
Tip:
Tip:
l
SPRAY
PRIME
If you expect to be away from your sprayer for more than
one hour, follow the Short-Term Storage instructions
(page 18).
Practice / Spraying Technique

11 English
Do not attempt to unclog or clean the tip with your finger.
NOTE - Do not use a needle or other sharp pointed instrument to clean the tip. The hard tungsten carbide can chip.
If the spray pattern becomes distorted or stops completely while the gun is triggered, follow these steps.
1. Release the trigger and lock the gun off (see page 7).
Rotate the reversible tip arrow 180º so that the point of
the arrow is toward the rear of the gun (CLEAN position).
Under pressure, the spray tip may be very difficult to
turn. Turn the PRIME/SPRAY knob to PRIME and
trigger the gun. This will relieve pressure and the tip
will turn more easily.
2. Turn the PRIME/SPRAY knob to SPRAY.
3. Unlock the gun and squeeze the trigger, pointing the gun
at a scrap piece of wood or cardboard. This allows
pressure in the spray hose to blow out the obstruction.
When the nozzle is clean, material will come out in a
straight, high pressure stream.
If material still will not spray from the spray tip, follow
the Cleaning the spray gun filter instructions,page 12.
4. Release the trigger and lock the gun off (see page 7).
Reverse the tip so the arrow points forward again (SPRAY
position). Unlock the gun and resume spraying.
GX-05 / GX-07
GX-08
Gun locked
(see page 7)
SPRAY
PRIME
GX-08
GX-05 / GX-07
Gun locked
(see page 7)
Spraying Troubleshooting - Unclogging the Spray Tip

12
English
Spraying Troubleshooting - Cleaning the Spray Gun Filter
The filter must be cleaned every time you use your sprayer. When using thicker spray materials, the filter might need to
be cleaned more often.
1. Perform Pressure Relief Procedure, page 7.
2a. Model GX-07 -Unscrew the fitting from the bottom of the
spray gun using an adjustable wrench, making sure not to
lose the spring.
2b. Models GX-05 and GX-08 - Unclip the trigger guard from
the filter housing by pulling outward from the filter
housing. Unscrew the filter housing.
3. Remove the filter from the spray gun housing and clean
with the appropriate cleaning solution (warm, soapy water
for latex paints, mineral spirits for oil-based materials).
4. Inspect the filter for holes (see inset, right). Replace if
holes are found.
NOTE - Never poke the filter with a sharp instrument.
5. Replace the cleaned filter, tapered end first, into the gun
housing. The tapered end of the filter must be loaded
properly into the gun. Improper assembly will result
in a plugged tip or no flow from the gun.
6. Reassemble the spray gun.
Tapered
end
(filter top)
Hole
Spray gun model
GX-07
Spring
Filter
Tapered
end
(filter top)
Hole
Spray gun models
GX-05 and GX-08
Filter
housing
Trigger
guard Filter
Fitting
Spraying Troubleshooting - Cleaning the Inlet Filter
The filter at the bottom of the suction tube may also need cleaning. Check it every time you change spray containers.
1. Remove the filter by unscrewing it from the suction tube.
Clean the filter with the appropriate cleaning solution
(warm, soapy water for latex materials, mineral spirits for
oil-based materials).
2. Thread the filter back into place.
If after completing all of the steps in Spraying
Troubleshooting you are still experiencing problems
spraying, refer to the Troubleshooting section (page 22).

13 English
Call 1-800-686-8525 if you have any problems or questions regarding the cleaning of your sprayer.
•When using latex materials, clean your sprayer and
components with water. When using oil-based materials,
use mineral spirits.
• Do not use mineral spirits on latex materials, or the
mixture will turn into a jelly-like substance which is
difficult to remove.
• No matter which cleaning solution you use, make sure to
dispose of it properly when finished cleaning your sprayer.
• Thorough cleaning and lubrication of the sprayer is the
most important step you can take to ensure proper
operation after storage.
•Always flush spray gun at least one hose length
away from spray pump.
• If collecting flushed solvents in one gallon metal
container, place it into an empty five gallon
container, then flush.
• Area must be free from vapors.
• Follow all cleanup instructions.
• DO NOT use gasoline to clean your sprayer.
1. Lock the gun and remove the spray tip assembly. Place
the suction tube and return tube into an empty waste
container.
Cleanup - Latex materials
Follow these steps if you used latex materials AND if you have a garden hose available. If you do not have a garden
hose available, follow the Cleanup for Oil-Based Materials instructions.
2. Using a garden hose, rinse off the suction tube, return
tube and inlet filter.Empty the waste container.
3. Remove the inlet filter from the suction tube and place
into a waste container (do not discard).
4. Verify that the seals are
present inside the adapter
and suction tube (a).
Thread the pump cleaning
adapter (b) onto a garden
hose (c).Connect hose
and adapter to the fitting
on the end of the suction
tube (d).
Continued on next page.
Empty waste
container
(b)
(c)
(d)
(a)
Follow these steps whenever cleaning with
mineral spirits:
Important Cleaning Notes - Read before cleanup

14
English
5. Unclip the return tube from the suction tube and place it
into the waste container. Turn the PRIME/SPRAY knob to
PRIME.
8. While pulling the trigger, turn the PRIME/SPRAY knob to
SPRAY to purge material from the hose back into the
original container.
7. Place the original material container next to the waste
container. Aim the spray gun into the side of the original
material container and hold the trigger.
Move on to Cleaning the Spray Gun Components.
SPRAY
PRIME
Waste
container
Containers should
be touching
Original
material
container
Hold trigger
9. When cleaning solution comes from the spray gun, keep
holding the trigger and aim the spray gun into the side of
the waste container.
10. Trigger the gun until the fluid coming out of the gun is
clear. You may need to empty the waste container and
continue flushing.
11. Turn the PRIME/SPRAYknob to PRIME and trigger gun
once more to relieve pressure.
Hold trigger
Spray material
into original container
Spray water into
waste container
6. Turn water supply on. Turn pump ON (l). Water will go
into the suction tube and out through the return tube. Let
pump run for a few minutes to allow the return tube to be
flushed.
Leave pump running
through steps 7 and 8.
Keep holding trigger through next steps.
SPRAY
PRIME
Cleanup - Latex materials (continued)

15 English
1. Lock the gun and remove spray tip assembly. Submerge
suction set into a bucket with appropriate cleaning
solution.
2. Place a waste container next to the original material
container. Aim the spray gun into the side of the original
material container and hold the trigger.
Bucket with
cleaning
solution
3. While pulling the gun trigger, turn the pump ON (l),and turn
the PRIME/ SPRAY knob to SPRAY to purge material from
the hose back into the original container.
• Hold trigger
• Turn pump ON (l)
• Turn PRIME/SPRAY knob to SPRAY
Containers should
be touching
Original
material
container
Hold trigger
Waste
container
Move on to Cleaning the Suction Set.
4. When cleaning solution comes from the spray gun, keep
holding the trigger and aim the spray gun into the side of the
waste container (ground gun with a metal container if
flushing with flammable solvent).
5. Trigger the gun until the fluid coming out of the gun is
clear. You may need to dispose and obtain new cleaning
solution.
6. Turn the PRIME/SPRAY knob to PRIME and trigger gun
once to relieve pressure.
Spray material
into original container
Spray cleaning solution
into waste container
Hold trigger
Keep holding trigger through next steps.
Cleanup - Oil-based materials

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English
1. Lock the gun and turn the pump OFF (O).
3. When suction set is clean, thread the suction tube back
into the inlet valve, and replace the return tube onto the
return tube fitting. Replace clip.
4. Submerge the suction set into a bucket of NEW cleaning
solution.
5. Turn the PRIME/SPRAY knob to PRIME. Turn the pump
ON (l),and trigger the gun once into a waste container to
relieve pressure.
(a)
2. Remove the suction hose and return tube and clean it
using the appropriate cleaning solution. You should also
wipe the threads of the inlet nut (a) and remove and clean
the suction set inlet filter.
GX-08
GX-07
GX-05
O
2to 3
minutes
6. Let the pump circulate cleaning solution through the suction
set for 2-3 minutes. Turn the pump OFF.
NOTE - If you used oil-based materials, you must flush
the pump again using water to prepare it for storage.
Repeat #1 - #11 in Cleanup- Latex materials, instructions.
Move on to Cleaning the Spray Gun Components.
l
SPRAY
PRIME
Cleanup - Cleaning the Suction Set

17 English
Cleanup - Cleaning the Spray Gun Components
1. Make sure the pump is switched OFF (O). Make sure the
PRIME/SPRAY knob is turned to PRIME. Unplug the
sprayer.
2. Remove spray gun from the paint hose using adjustable
wrenches.
(b)
(c)
(a)
3. Remove filter from spray gun (refer to Cleaning the
Spray Gun Filter, page 12).
4. Remove spray tip (a) from spray guard assembly. Clean
spray tip with a soft-bristled brush and the appropriate
cleaning solution. Be sure to remove and clean the
washer (b) and saddle seat (c) located in the rear of the
spray guard assembly.
GX-05
GX-08
GX-07
(b)
(c)
(a)
5. Install gun filter tapered-end first. Reassemble spray gun. 6. Install spray tip (a),saddle seat (c) and washer (b),and
replace spray guard assembly.
GX-05
GX-08
GX-07
7. Thread the spray gun back onto the paint hose.
Tighten with a wrench.
O
SPRAY
PRIME

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English
Follow these steps when using latex materials only. If using materials that are oil-based, follow the Cleanup and Long-
Term Storage steps.
Shutdown
1. Lock the spray gun off.
GX-08
GX-07
GX-05
2. Turn the PRIME/SPRAY knob to PRIME. Switch the pump
OFF (O).Unplug the sprayer.
3. Pour 1/2 cup water slowly on the top of the paint to
prevent the paint from drying. Wrap the spray gun
assembly in a damp cloth and place it in a plastic bag.
Seal the bag shut. Place the sprayer in a safe place out
of the sun for short-term storage.
Startup
1. Remove the gun from the plastic bag. Stir the water into
the paint.
2. Turn the PRIME/SPRAY knob to PRIME. Plug sprayer in.
Turn the switch to ON (I).
3. Turn the PRIME/SPRAY knob to SPRAY. Test the
sprayer on a practice piece and begin spraying.
O
l
SPRAY
PRIME
SPRAY
PRIME
Short-Term Storage (up to 16 hours)

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Long-Term Storage
1. Fill a cup or other container with separating oil
(approximately 2 ounces) supplied with the unit and
submerge the inlet valve into the oil.
2. Place a rag over the spray hose port, and turn the switch
ON (l).When the oil has been sucked from the cup, turn
the pump OFF (O).
3. Wipe the entire unit, hose and gun with a damp cloth to
remove accumulated paint. Replace the high pressure
hose to the paint hose port.
If you have a cart model (1620, 1720, 1920), you can collapse the cart handle for easier storage.
1. Twist the knobs on either side
of the cart counterclockwise.
2. Slide the handle into the cart.
Separating oil
Follow these instructions only after all cleanup steps have been performed.

20
English
Cleaning the Inlet Valve
(a)
1. Remove the suction set.
3. Lubricate the O-ring on the inlet valve (b).Replace inlet
valve assembly by screwing it into the sprayer. Torque to
23-27 ft lbs (1420, 1620) or 32-38 ft lbs (1720, 1920).
2. Unscrew the inlet valve assembly (a) from the sprayer.
Visually inspect the inside and outside of the inlet valve
assembly. Clean any paint residue with the appropriate
cleaning solution.
4. Replace suction set and hand-tighten.
Cleaning or servicing the inlet valve may be required if the unit has priming problems. Priming problems may be
prevented by properly cleaning the sprayer and following the Long-Term Storage steps.
If priming problems persist, you may need to replace the
inlet valve assembly. Call Customer Service to order new
inlet valve assembly (1-800-686-8525).
(b)