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Instructions - Parts
XHT Spray Gun
For spraying viscous materials at elevated temperatures. For professional use only.
Not approved for use in European explosive atmosphere locations.
Part No. 25A536, Series A
™
Includes an XHD
RAC
6500 psi (45 MPa, 450 bar) Maximum Working Pressure
Important Safety Instructions
Read all warnings and instructions in this
manual. Save all instructions.
®
Guard and XHT647 SwitchTip
™
3A4094A
EN
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Summary of Contents for Graco 25A536
- Page 1 Instructions - Parts XHT Spray Gun 3A4094A For spraying viscous materials at elevated temperatures. For professional use only. Not approved for use in European explosive atmosphere locations. Part No. 25A536, Series A ™ ® ™ Includes an XHD Guard and XHT647 SwitchTip...
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Page 2: Table Of Contents
Graco Standard Warranty ....16 Graco Information ......16... -
Page 3: Warnings
Warnings Warnings The following warnings are for the setup, use, grounding, maintenance, and repair of this equipment. The exclama- tion point symbol alerts you to a general warning and the hazard symbols refer to procedure-specific risks. When these symbols appear in the body of this manual or on warning labels, refer back to these Warnings. Product-specific hazard symbols and warnings not covered in this section may appear throughout the body of this manual where applicable. - Page 4 Warnings WARNING EQUIPMENT MISUSE HAZARD Misuse can cause death or serious injury. • Do not operate the unit when fatigued or under the influence of drugs or alcohol. • Do not exceed the maximum working pressure or temperature rating of the lowest rated system component.
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Page 5: Operation
Additional cards (part no. 222385) are This equipment stays pressurized until pressure is available at no charge from Graco. manually relieved. To help prevent serious injury from pressurized fluid, such as skin injection, splashing... -
Page 6: Operation
Operation Operation 6. Start the pump. Trigger the gun onto test paper. Adjust the fluid pressure until the spray is com- pletely atomized. Use the lowest pressure neces- sary to get the desired results. Higher pressure may not improve the spray pattern and will cause prema- Heated fluid expands, causing a pressure rise in a ture tip and pump wear. -
Page 7: Gun Care
Operation Gun Care If the spray tip clogs while spraying The material and equipment will be hot! To avoid To reduce the risk of fluid injection or splashing in the burns, wear protective clothing when materials are at eyes or on the skin: elevated temperatures. -
Page 8: Flush The Gun
Operation Flush the Gun To reduce the risk of serious injury, including splashing fluid in the eyes or on the skin, burns, or static electric discharge when flushing: • Be sure the entire system, including flushing pails, is properly grounded. •... -
Page 9: Service
Service Service 4. Unscrew the valve seat (2a). Remove the gasket (2b). See F . 6. To reduce the risk of serious injury from burns, fluid injection or splashing, before servicing the gun: • Always follow the Pressure Relief Procedure on page 5. -
Page 10: Reassembly
Service 6. Loosen the setscrew (15) then remove the fluid 9. Clean all parts and cavities thoroughly with a com- housing (22) from the gun body (1). See F . 8. patible flushing fluid. Dry with a rag or compressed air. - Page 11 Service 3. Place the gasket (2b) on the valve seat (2a). Grease 5. If the spring (19) was removed, grease the spring the threads of the valve seat (2a) then install into the adjuster (20) and place the spring on the adjuster fluid housing (22).
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Page 12: Test The Gun After Service
Service 7. Position the trigger (24) on the gun body. Insert the Test the Gun After Service pivot pin (23) into the top hole (A) and secure with the screw (13) on the other side. Ensure there is an 1. Lock the gun trigger lock. Connect a hose to swivel e-clip (26) on one end of the trigger pin (18). -
Page 13: Parts
Parts Parts 18 26 Must install as shown with the notch on the bottom. Ref Part Description Ref Part Description 189990 ADJUSTER, spring BODY, gun 110637 SCREW, adjusting 25A248 KIT, needle and seat 16P780 HOUSING, fluid SEAT, valve 187965 PIN, pivot GASKET 189974 TRIGGER, gun NEEDLE... - Page 14 Parts 3A4094A...
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Page 15: Technical Data
Technical Data Technical Data Maximum Working Pressure ..... 6500 psi (45 MPa, 450 bar) Maximum Ambient Temperature ....120°... -
Page 16: Graco Standard Warranty
With the exception of any special, extended, or limited warranty published by Graco, Graco will, for a period of twelve months from the date of sale, repair or replace any part of the equipment determined by Graco to be defective.
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