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Operation, Parts
Cordless Electric Airless
Sprayers
For portable airless spraying of architectural paints and coatings. Not approved for
use in explosive atmospheres or hazardous (classified) locations. For professional use
only.
390 PC Cordless Models: 25T804, 826290, 25T863, 25T943, 25T882
3300 psi (228 bar, 22.8 MPa) Maximum Working Pressure
Important Safety Instructions
Read all warnings and instructions in this manual and related
manuals before using the equipment. Be familiar with the controls
and the proper usage of the equipment. Save these instructions.
Related Manuals
Manual
Description
311861
Gun (Contractor/FTX)
334599
Pump
3A6285
Gun (Contractor PC)
Use only genuine Graco replacement parts.
The use of non-Graco replacement parts may void warranty.
3A8179B
EN
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Table of Contents
Related Manuals for Graco 25T804
Summary of Contents for Graco 25T804
- Page 1 For portable airless spraying of architectural paints and coatings. Not approved for use in explosive atmospheres or hazardous (classified) locations. For professional use only. 390 PC Cordless Models: 25T804, 826290, 25T863, 25T943, 25T882 3300 psi (228 bar, 22.8 MPa) Maximum Working Pressure Important Safety Instructions Read all warnings and instructions in this manual and related manuals before using the equipment.
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Page 2: Table Of Contents
Graco Standard Warranty ......42 Graco Information ........43... -
Page 3: Models
Models Models Hi-Boy Stand Battery Charger Voltage VDC Voltage VAC Model 390 PC Cordless 25T804 25T805 60 USA/CA 120 USA/CA NOVA 390 PC 826280 Cordless 390 PC Classic 54 EMEA/UK 230 EMEA 25T863 Cordless 390 PC Classic 54 EMEA/UK 230 EMEA... -
Page 4: Important Grounding Information
Important Grounding Information Important Grounding Information Before using your sprayer read this Owners Manual for complete instructions on proper use and safety warnings. The following information is intended to help you understand when to use the grounding wire and clamp provided with your sprayer. -
Page 5: Warnings
All parts of the spray system, including the pump, hose assembly, spray gun, and objects in and around the spray area shall be properly grounded to protect against static discharge and sparks. Use Graco conductive or grounded high-pressure airless paint sprayer hoses. Follow Grounding Instructions, page 10. - Page 6 Check hoses and parts for signs of damage. Replace any damaged hoses or parts. • This system is capable of producing 3300 psi (228 bar, 22.8 MPa). Use Graco parts or accessories that are rated a minimum of 3300 psi (228 bar, 22.8 MPa).
- Page 7 Warnings PRESSURIZED ALUMINUM PARTS HAZARD Use of fluids that are incompatible with aluminum in pressurized equipment can cause serious chemical reaction and equipment rupture. Failure to follow this warning can result in death, serious injury, or property damage. • Do not use 1,1,1-trichloroethane, methylene chloride, other halogenated hydrocarbon solvents or fluids containing such solvents.
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Page 8: Component Identification
Component Identification Component Identification Stand Models Fluid Intake ON/OFF Switch Pump Pressure Control Fluid Outlet Prime Valve Grounding Wire and Clamp Tip Guard Filter Spray Tip Finger Guard / TSL Fill Point W Ground Outlet Adapter Airless Hose Ground Plug Adapter Battery Model/Serial Tag (Not shown, located Trigger Lock... -
Page 9: Hi-Boy
Component Identification Hi-Boy Fluid Intake ON/OFF Switch Pump Pressure Control Fluid Outlet Prime Valve Grounding Wire and Clamp Tip Guard Filter Spray Tip Finger Guard / TSL Fill Point Model/Serial Tag (Not shown, located Airless Hose on bottom of unit.) Battery Pail Hook Trigger Lock... -
Page 10: Grounding Instructions
Grounding Instructions Grounding Instructions (Oil-Based and Flammable Materials) A properly grounded electrical outlet can also be used as a true earth ground. Use the provided outlet adapter. Plug the adapter in to a grounded outlet. The equipment must be grounded to reduce Connect the grounding wire and clamp to the the risk of static sparking. -
Page 11: Pails
Grounding Instructions Pails Solvents and oil-based materials: follow local codes and regulations. Use only conductive metal pails, placed on a grounded surface such as concrete. Do not place pail on a non-conductive surface such as paper or cardboard which interrupts grounding continuity. -
Page 12: Pressure Relief Procedure
Pressure Relief Procedure Pressure Relief Procedure Turn pressure control to lowest setting. Follow the Pressure Relief Disengage the trigger lock. Procedure whenever you see this symbol. This equipment stays pressurized until pressure is manually relieved. To help prevent serious injury from pressurized fluid, such as skin injection, splashed fluid ti25230a and moving parts, follow the Pressure... -
Page 13: Trigger Lock
Pressure Relief Procedure Put drain tube in a pail. Turn prime valve Trigger Lock down. Leave prime valve in down (drain) position until you are ready to spray Always engage the trigger lock when sprayer again. is stopped to prevent the gun from being triggered accidentally by hand or if dropped or bumped. -
Page 14: Setup
When unpacking sprayer for the first time or after long term storage perform setup procedure. When first setup is performed remove shipping plug from fluid outlet. Connect Graco airless hose to fluid outlet. Use two wrenches to tighten securely. ti24633a Use wrenches to tighten securely. - Page 15 Setup Remove tip guard. Place the TSL bottle nozzle into the top center opening in the grill at the front of the sprayer. Squeeze bottle to dispense enough TSL to fill the space between the pump rod and packing nut seal. ti24592a When unpacking sprayer for the first time remove packaging materials from...
- Page 16 Setup Turn prime valve down. 11. Turn pressure control to lowest setting. 12. Install battery, see Battery Installation and Removal, page 17. 13. Turn ON/OFF switch to ON position. 14. Increase pressure 1/2 turn to start motor. Allow fluid to flush through sprayer for one minute.
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Page 17: Battery Installation And Removal
Setup Battery Installation and Install battery by aligning the battery pack with the rails inside the sprayer and Removal sliding it in until the battery pack is firmly seated. Ensure that it does not Always start with a fully charged Battery. disengage. -
Page 18: Startup
Startup Startup Increase pressure 1/2 turn to start motor. Allow paint or other material to circulate through sprayer until material flows out the drain tube. Perform Pressure Relief Procedure, page 12. Turn pressure control to lowest pressure. ti25231a Turn prime valve horizontal. Disengage trigger lock. - Page 19 Startup Hold gun against grounded metal waste 10. Move gun to paint pail and trigger for 20 pail. Trigger gun at least 1 minute until seconds. Release trigger and allow paint appears. sprayer to build pressure. Engage trigger lock. High-pressure spray is able to inject toxins into the body and cause serious bodily injury.
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Page 20: Operation
Operation Operation Spray Tip Installation 3. Screw assembly onto gun. Tighten. To avoid serious injury from skin injection, do not put your hand in front of the Spray Tip when installing or removing the Spray Tip and Spray Tip Guard. 1. -
Page 21: Clear Tip Clog
Operation Spray test pattern. Adjust pressure to Clear Tip Clog eliminate heavy edges. To avoid injury, never point gun at your hand or into a rag! Release trigger. Engage trigger lock. Rotate Spray Tip. Disengage trigger lock. Trigger gun at waste area to clear clog. -
Page 22: Cleanup
Operation Cleanup Remove fluid intake and drain tube from paint, wipe excess paint off outside. To avoid serious injury from fire and explosion when using oil-based or flammable materials: • Do not spray solvents through the spray tip. Always remove tip guard and spray tip before flushing. - Page 23 Operation Increase pressure 1/2 turn to start motor. While continuing to trigger gun, turn Hold gun against grounded paint or prime valve down. Then, release gun waste pail. Disengage trigger lock. trigger. Allow flushing fluid to circulate Trigger gun and increase pressure until until fluid comes out of drain tube clear.
- Page 24 Operation 11. Turn prime valve horizontal. Trigger gun 13. Turn pressure control knob to the lowest into grounded flushing or waste pail for pressure setting and turn ON/OFF 20 seconds to purge fluid from hose. switch to OFF position. Power button is illuminated when power is ON.
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Page 25: Cleaning Fluid Compatibility
Operation 16. If flushing with water, flush again with Cleaning Fluid ™ mineral spirits or Pump Armor to leave Compatibility a protective coating to prevent freezing or corrosion. • When spraying water-based materials, flush the system thoroughly with water. • When spraying oil-based or flammable materials, flush the system thoroughly with mineral spirits or compatible... -
Page 26: Maintenance
Maintenance Maintenance Routine maintenance is important to ensure proper operation of your sprayer. Maintenance includes performing routine actions which keep your sprayer in operation and prevents trouble in the future. Activity Interval Inspect/clean sprayer filter, fluid inlet strainer, and gun Daily or each time you spray filter. -
Page 27: Troubleshooting
Troubleshooting Troubleshooting Mechanical/Fluid Flow Follow Pressure Relief Procedure, Check all possible problems and causes page 12, before checking or repairing. before disassembling the unit. What to Check What to Do If check is OK, go to next When check is not OK, Problem check refer to this column... - Page 28 Troubleshooting What to Check What to Do If check is OK, go to next When check is not OK, Problem check refer to this column Pump output is low Pump rod damage. Repair pump. See pump manual. Low stall pressure. Turn pressure knob fully clockwise.
- Page 29 Troubleshooting What to Check What to Do If check is OK, go to next When check is not OK, Problem check refer to this column Sprayer operates for 5 to 10 minutes Pump packing nut too tight. When Loosen pump packing nut. Check for then stops pump packing nut is too tight the leaks around throat.
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Page 30: Electrical
Troubleshooting Electrical Symptom: Sprayer does not run, stops Install fully charged battery, see Battery running, or will not shut off. Installation and Removal, page 17. Turn the ON/OFF switch OFF, wait 30 seconds and then turn power back ON again (this ensures sprayer is in normal run mode). - Page 31 Notes Notes 3A8179B...
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Page 32: Parts
Parts Parts 390 Stand Sprayer Parts Ref. Torque Ref. Torque Ref. Torque Ref. Torque 140-160 in-lbs. 10-20 in-lbs (1.13-2.26 40-50 in-lbs (4.5-5.6 23-27 in-lbs (2.6-3.1 N•m) (15.8-18.1 N•m) N•m) N•m) 80-90 in-lbs (9-10.2 8-10 in-lbs (0.9-1.13 N•m) 25-35 in-lbs (2.8-4 N•m) N•m) 3A8179B... -
Page 33: 390 Stand Sprayers Parts List
17C539 COVER, front 20A270 BATTERY SHIELD, motor, includes 87, COMPARTMENT 12, 48, 52, 53, 84, 89, 90) 17R614 FASTENERS, battery 25U300 Models: 25T804, 25T863, compartment 25T943, 25T882) 115477 FASTENER 826283 Models: 826280 17P924 LABEL, A+ 180131 BEARING, thrust 237686... - Page 34 Parts 390 Hi-Boy Sprayers Parts Ref. Torque Ref. Torque Ref. Torque Ref. Torque 140-160 in-lbs. 10-20 in-lbs (1.13-2.26 40-50 in-lbs (4.5-5.6 23-27 in-lbs (2.6-3.1 N•m) (15.8-18.1 N•m) N•m) N•m) 80-90 in-lbs (9-10.2 8-10 in-lbs (0.9-1.13 N•m) 25-35 in-lbs (2.8-4 N•m) N•m) 3A8179B...
- Page 35 Parts 390 Hi-Boy Sprayer Parts List Ref. Part Description Qty. Ref. Part Description Qty. 15K092 TUBE, drain 107434 BEARING, thrust 20A336 SWITCH, power 25T886 BRACKET, cover O-RING 117501 SCREW, mach, hex hd. 16V903 CONDUIT, corrugated 235004 STRAINER, 3/4-16 unf 20A450 GASKET 115099 WASHER...
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Page 36: Control Box And Filter
Parts Control Box and Filter Ref. Torque Ref. Torque Ref. Torque Ref. Torque 140-160 in-lbs. 130-140 in-lbs (14.7-16.9 48-72 in-lbs (5.4-8.1 (15.8-18.1 N•m) N•m) N•m) 3A8179B... -
Page 37: Control And Filter Parts List
277364 GASKET, seat, valve 162453 NIPPLE, (1/4 npsm x MANIFOLD, fluid 1/4 npt) 17C590 Sprayer Models: 15E022 SEAT, valve 25T804, 25T805, 187625 HANDLE, valve, drain 826280 17C735 SCREW, mach, HWH 17C591 Sprayer Models: 239914 VALVE, drain, includes 25T863, 25T882,... -
Page 38: Gun, Hose And Labels
Hose, 1/4 in. x Model Ref. 61 Ref. 52 Label, Alert Danger (Series) Gun, Spray Label, Front Side 25T804 & 240794 20A479 20A328 20A329 222385 # 20A030 # 25T805 & 25T863 $ 240794 288438 20A333 20A334 222385 $... -
Page 39: Wiring Diagram
Wiring Diagram Wiring Diagram 3A8179B... -
Page 40: Technical Specifications
Technical Specifications Technical Specifications 390 PC Cordless Metric Sprayer Maximum fluid working pressure 390 PC Cordless 3300 psi 228 bar, 22.8 MPa Maximum Delivery 390 PC Cordless 0.47 gpm 1.8 lpm Maximum Tip Size 390 PC Cordless 0.021 0.021 Fluid Outlet 1/4 in. -
Page 41: California Proposition 65
California Proposition 65 California Proposition 65 CALIFORNIA RESIDENTS WARNING: Cancer and reproductive harm – www.P65warnings.ca.gov. 3A8179B... -
Page 42: Graco Standard Warranty
Graco’s written recommendations. This warranty does not cover, and Graco shall not be liable for general wear and tear, or any malfunction, damage or wear caused by faulty installation, misapplication, abrasion, corrosion, inadequate or improper maintenance, negligence, accident, tampering, or substitution of non-Graco component parts. -
Page 43: Graco Information
Graco Information Graco Information For the latest information about Graco products, visit www.graco.com. For patent information, see www.graco.com/patents. TO PLACE AN ORDER, contact your Graco distributor or call 1-800-690-2894 to identify the nearest distributor. 3A8179B... - Page 44 Original instructions. This manual contains English. MM 3A8179 Graco Headquarters: Minneapolis International Offices: Belgium, China, Japan, Korea GRACO INC. AND SUBSIDIARIES • P.O. BOX 1441 • MINNEAPOLIS MN 55440-1441 • USA Copyright 2021, Graco Inc. All Graco manufacturing locations are registered to ISO 9001. www.graco.com...
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