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Always spray at minimum pressure with the gun nozzle tip
removed when using mineral spirits or any other solvent
to clean the sprayer, hose, or gun.  Static electricity
buildup may result in a fire or explosion in the presence of
flammable vapors.

1. Follow the “Pressure Relief Procedure” found in the

Operation section of this manual.

2. Remove the gun tip and tip guard and clean with a brush

using the appropriate solvent.

3. Place the siphon tube into a container of the appropriate

solvent.  Examples of the appropriate solvent are water for
latex paint or mineral spirits for oil-based paints.

4. Place the return hose into a metal waste container.
5. Set the pressure to minimum by

turning the pressure control knob
fully counterclockwise.

6. Move the PRIME/SPRAY valve down

to its PRIME position.

7. Turn the unit on by moving the

ON/OFF switch to the ON position.

8. Allow the solvent to circulate

through the unit and flush the paint
out of the return hose into the metal
waste container.

9. Turn the unit off by moving the ON/OFF switch to the OFF

position.

10. Move the PRIME/SPRAY valve up to its SPRAY position.

11. Turn the unit on.

Ground the gun by holding it against
the edge of the metal container while
flushing.  Failure to do so may lead to a
static electric discharge, which may
cause a fire.

12. Trigger the gun into the metal waste

container until the paint is flushed out
of the hose and solvent is coming out of the gun.

13. Continue to trigger the spray gun into the waste container

until the solvent coming out of the gun is clean.

14. Follow the “Pressure Relief Procedure” found in the

Operation section of this manual.

15. Unplug the unit and store in a clean, dry area.

Do not store the unit under pressure.

Cleaning the Spray Tip

1. Flush the gun with solvent immediately after the work is

completed. 

2. Oil the sliding pins to prevent them from seizing up.

Should the spray tip become clogged, reverse
the spray tip with the lever and pull the trigger.
Once the obstruction comes out of the spray tip,
release the trigger, reverse the spray tip back to
the spray pattern setting, and resume spraying.

Do not attempt to clean the tip with your finger.  
Do not use a needle or other sharp pointed instrument to
clean the tip.  The hard tungsten carbide is brittle and can
be chipped.

WARNING

CAUTION

NOTE: For long-term or cold weather storage, pump

mineral sprits through the entire system.

WARNING

ON/OFF 

Switch

Pressure 

Control Knob

WARNING

© SprayTECH.  All rights reserved.

7

Maintenance

Before proceeding, follow the Pressure Relief Procedure
outlined previously in this manual.  Additionally, follow all
other warnings to reduce the risk of an injection injury,
injury from moving parts or electric shock.  Always unplug
the sprayer before servicing!

General Repair and Service Notes

1. Before repairing any part of the sprayer, read the

instructions carefully, including all warnings.

Never pull on a wire to disconnect it. Pulling on a wire
could loosen the connector from the wire.

2. Test your repair before regular operation of the sprayer to

be sure that the problem is corrected.  If the sprayer does
not operate properly, review the repair procedure to
determine if everything was done correctly.  Refer to the
Troubleshooting section to help identify other possible
problems.

3. Make certain that the service area is well ventilated in

case solvents are used during cleaning.  Always wear
protective eyewear while servicing.  Additional protective
equipment may be required depending on the type of
cleaning solvent.  Always contact the supplier of solvents
for recommendations.

4. If you have any further questions concerning your

SprayTECH Airless Sprayer, call SprayTECH:

Technical Service...................................

1-800-292-4637

Fax ................................................

1-800-525-9501

Replacing the PRIME/SPRAY Valve

Perform the following procedure using PRIME/SPRAY valve
replacement kit P/N 0507690.

1. Drive the groove pin out of the valve handle.
2. Remove the valve handle and the cam base.
3. Using a wrench, loosen and remove the valve housing

assembly.

4. Make sure the gasket is in place and thread the new valve

housing assembly into the filter block.  Tighten securely
with a wrench.

5. Place the cam base over the valve housing assembly.

Lubricate the cam base with grease and line up the cam
with the filter block using the dowel pin.

6. Line up the hole on the valve stem with the hole in the

valve handle. 

7. Insert the groove pin into the valve handle and through

the valve stem to secure the valve handle in position.

Gasket

Dowel Pin

Cam Base

Valve Stem

Filter 

Housing

Valve Housing 

Assembly

Valve 

Handle 

Groove Pin

CAUTION

WARNING

Summary of Contents for EPX2305

Page 1: ...ted in the U S A EPX2305 Piston Pump SprayTECH 1770 Fernbrook Lane Minneapolis MN 55447 Technical Assistance 1 800 292 4637 Order Entry 1 800 443 4500 Fax 1 800 525 9501 www spraytechinc com Owner s M...

Page 2: ...fer to the PRESSURE RELIEF PRESSURE described in the pump manual ALWAYS keep tip guard in place while spraying The tip guard provides some protection but is mainly a warning device ALWAYS remove the s...

Page 3: ...e if any of those conditions exist Never repair a paint hose Replace with a grounded high pressure hose All hoses swivels guns and accessories must be pressure rated at or above 3200PSI 221 BAR Do not...

Page 4: ...prayer If this unit is new it is shipped with test fluid in the fluid section to prevent corrosion during shipment and storage This fluid must be thoroughly cleaned out of the system with mineral spir...

Page 5: ...ARNING Ground the gun by holding it against the edge of the metal container while flushing Failure to do so may lead to a static electric discharge which may cause a fire 12 Trigger the gun into the m...

Page 6: ...PRIME Turn the ON OFF switch to the OFF position and unplug the sprayer Practice 1 Be sure that the paint hose is free of kinks and clear of objects with sharp cutting edges 2 Turn the pressure contro...

Page 7: ...arp pointed instrument to clean the tip The hard tungsten carbide is brittle and can be chipped WARNING CAUTION NOTE For long term or cold weather storage pump mineral sprits through the entire system...

Page 8: ...Motor Assembly 1 Perform the Pressure Relief Procedure and unplug the unit 2 For Upright cart units remove the return hose from the clamp on the siphon tube Unscrew the siphon tube from the inlet val...

Page 9: ...on the down tube with PTFE tape before assembly Replace the return hose into the clamp on the siphon tube 34 For Low Boy cart units insert the elbow on the suction set assembly into the bottom of the...

Page 10: ...cylinder 16 Slide the piston rod out through the bottom of the cylinder 17 Inspect the piston rod for wear and replace if necessary 18 Remove the upper support ring and upper packing assembly from the...

Page 11: ...ipple on the back of the cylinder and tighten with a wrench Do not kink the hose 48 Insert the lower support ring into the bottom of the cylinder 49 Insert the support washer into the bottom of the cy...

Page 12: ...ats following the Servicing the Fluid Section procedure in the Maintenance section of this manual 10 Take unit to a SprayTECH authorized service center 1 Repack the pump following the Servicing the Fl...

Page 13: ...hose with a minimum of 50 of 1 4 grounded textile braid airless paint spray hose 2 Replace the spray tip following the instructions that came with the spray gun 3 Rotate the pressure control knob cou...

Page 14: ......

Page 15: ...on particuli re ATTENTION AVERTISSEMENT DANGER RISQUES D EXPLOSION OU D INCENDIE Les vapeurs d gag es par le solvant ou la peinture sont explosives et inflammables et peuvent causer des corporels s ri...

Page 16: ...eur assume tous les risques et responsabilit s lorsqu il utilise des pi ces qui ne sont pas conformes aux caract ristiques techniques minimales ainsi qu aux dispositifs de s curit du fabricant de la p...

Page 17: ...RA PREVENIR Debe proveerse un escape y aire fresco para hacer que el aire que est dentro del rea de atomizaci n se mantenga libre de acumulaciones de vapores inflamables Evite todas las fuentes de ign...

Page 18: ...cela con otra manguera conectada a tierra Todas las mangueras soportes giratorios pistolas y accesorios que se usen con esta unidad deben tener una capacidad de presi n de 3200 lb pulg2 221 BAR o may...

Page 19: ...Front cover 1 8 0507710 Filter mounting plate 1 9 51357 Lock washer 8 10 0507957 Screw 8 11 0507785 Return hose 1 12 0507783 Hose clamp 1 13 5006536 Inlet screen 1 Item Part Description Quantity 14 13...

Page 20: ...213 Flat washer 3 19 0507178 Motor assembly 1 0507935 Front gear box assembly includes items 1 2 4 5 9 10 11 14 and 16 0507927 Motor brush kit NOTE All electrical work should be performed by a SprayTE...

Page 21: ...1 10 0507734 Outlet valve seal 1 11 0507945 Outlet valve cage 1 12 9841502 Outlet valve ball 1 13 0507454 Washer nylon 1 14 0294516 Outlet valve seat 1 15 0507733 Outlet valve retainer 1 16 0507943 S...

Page 22: ...ew 2 10 0507774 Screw 4 11 0507655 Cord wrap 2 12 0295608 Screw 4 13 0295606 Washer 4 14 0294534 Spacer 4 15 0278373 Wheel 2 16 9890104 Cap 2 1 3 4 2 5 6 8 9 6 7 12 13 10 11 14 16 15 Filter Assembly I...

Page 23: ...e Control Assembly 3 5 6 7 8 9 10 11 4 1 2 14 15 19 20 21 16 17 18 12 13 Item Part Description Quantity 1 9802244 Screw 1 2 0507971 Rectifier 1 3 0507717 Control panel gasket 1 4 0507714 Screw 1 5 050...

Page 24: ...2011 G 10 Two Finger Airless Spray Gun no tip 0502009 G 10 Two Finger Airless Spray Gun with 517 Reversible TIp 0270214 G 10 Four Finger Spray Pack with 50 x 1 4 airless hose 0502012 G 10 Two Finger S...

Page 25: ...be deemed to have failed of their essential purpose so long as SprayTECH is willing to repair or replace parts or to refund the purchase price as set forth above What Is Not Covered By This Warranty...

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