Graco RTX-650 Repair Manual
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Graco RTX-650 Repair Manual

Graco RTX-650 Repair Manual

Interior texture sprayer
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See also: Troubleshooting Manual , Operating Manual
Repair
Interior Texture Sprayer
RTX 650
Model: 254973
50 psi (0.35 MPa, 3.5 bar) Maximum Fluid Working Pressure
100 psi (0.7 MPa, 7.0 bar) Maximum Air Pressure
Important Safety Instructions
Read all warnings and instructions in this manual.
Save these instructions.
Related Manuals
311777
311767
Graco Inc. P.O. Box 1441 Minneapolis, MN 55440-1441
Copyright 2006, Graco Inc. is registered to I.S. EN ISO 9001
For Water-Based Materials Only
311771D
ti8370a
Model 254973 Shown
US
C
Conforms to ANSI/UL
standard 1450

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Summary of Contents for Graco RTX-650

  • Page 1 Read all warnings and instructions in this manual. Save these instructions. Related Manuals 311777 311767 Graco Inc. P.O. Box 1441 Minneapolis, MN 55440-1441 Copyright 2006, Graco Inc. is registered to I.S. EN ISO 9001 311771D ti8370a Model 254973 Shown Conforms to ANSI/UL standard 1450...
  • Page 2 • Route hoses away from traffic areas, sharp edges, moving parts and hot surfaces. Do not expose Graco hoses to temperatures above 130° F (55° C) or below -35° F (-37° C). • Air hoses at the compressor end, can get very hot! Allow sprayer to cool down 15 minutes before removing air hose.
  • Page 3 Warnings Warnings Electric Shock Hazard To reduce the risk of electric shock: • Be sure sprayer is adequately grounded through electrical outlet, page 6. • Use only 3-wire, extension cords. • Make sure ground prongs are intact on sprayer and extension cords. •...
  • Page 4 Water or material remaining in unit when temperatures are below freezing can damage motor and/or delay pump startup. To insure water and material are completely drained out of unit: 1. Remove material line from sprayer. 2. Tip sprayer up as shown. ti9075a Before adding material or starting unit in cold weather, run warm water through pump.

  • Page 5: Component Identification

    Material Thickness Gauge Accessories Bag Gun Air Valve 311771D Item Burp Guard ON/OFF Switch Power Cord (120V, 15 ft) Material Hopper - 5 gallon Cord Wrap Handle Air Compressor (Not Supplied by Graco) Knob/Pressure Control ti8369a 3.5 cfm@40 min. Component...

  • Page 6: Pressure Relief Procedure

    Pressure Relief Procedure To reduce risk of injury, follow this procedure whenever you see this symbol throughout this manual, Also, perform this procedure whenever you: • Stop spraying • Check or repair any part of this system • Install or clean spray nozzle 1.

  • Page 7: Shroud Removal

    Shroud Removal Disassembly 1. Relieve Pressure, page 6. 2. Unplug sprayer from outlet. ti2810b 3. Remove two screws (15) and two screws (64) from back of shroud (7). 4. Pull shroud (7) back and up over knob (41). 311771D Shroud Removal Reassembly 1.
  • Page 8 Disassembly 1. Relieve Pressure, page 6. 2. Unplug sprayer from outlet. ti2810b 3. Remove Shroud, page 7. 4. Loosen two spacers (56) and knob (41). 5. Loosen hopper fitting by hand to remove hopper (1). ™ RotoFlex II Pump 6. Use 3/8 in. socket to remove screw (36) from hose bracket (27).
  • Page 9 ™ RotoFlex II Pump Reassembly 1. Bend hose (23) so colored dots on hose fittings face each other and slide hose fittings through hose bracket (27). CAUTION Make sure protective fabric faces outside of hose. Roller will touch exposed area of pump hose when pump is in place.
  • Page 10 Disassembly 1. Relieve Pressure, page 6. 2. Unplug sprayer from outlet. ti2810b 3. Remove Shroud, page 7. 4. loosen knob (41) until spring relaxes. 5. Remove Pump, page 8. 6. Disconnect all electrical Wiring, page 16. 7. Use 1/4 in. socket to remove grounding screw (22). ti9064a 8.
  • Page 11 Motor Reassembly 1. Tighten Belt, page 13. 2. Use petroleum jelly to grease area of shaft that makes contact with extension cable (29). ti9060a 3. Slide pin on motor tray (32) into slots on base and push motor and tray back into position. ti9708a 4.
  • Page 12 When replacing fuse, use only Bussman GMF-3 (3A) to prevent premature trips or equipment damage. The motor has a replaceable fuse attached to the motor bracket. The fuse assembly (A) is fastened to the motor bracket along with a clamp. ti9206a To remove the motor fuse, press down on the round center cover (C) and turn it counterclockwise.
  • Page 13 Belt Disassembly 1. Relieve Pressure, page 6. 2. Unplug sprayer from outlet. ti2810b 3. Remove Shroud, page 7. 4. Remove Motor, page 10. 5. Place motor tray (32) into vice and tighten until snug. ti9063a 6. Use 9/16 in. wrench to loosen two mounting screws (4) on motor tray (32) to allow motor to slide around.

  • Page 14: Troubleshooting

    Problem Sprayer won’t run Pump won’t pump material Material runs out of bottom of sprayer onto floor No air flowing from gun Troubleshooting Cause Power switch not on No power at wall outlet Wrong size generator Too many items on same circuit Extension cord too long or wrong gauge Breaker tripped...
  • Page 15 Troubleshooting Problem Speed of application too slow Intermittent flow/sputtering Gun will not shut off Fluid leaking at Flow Adjustment Nut on gun Fluid leaking out of either plug on gun Missing or damaged o-rings Needle adjustment on gun won’t adjust 311771D Cause New pump hose not broken in...

  • Page 16: Wiring Diagram

    Motor Green Wire Chassis Ground Wiring Diagram Wire Black Wire Green Wire White White Wire Wire Wiring Diagram ON/OFF Switch Black Wire Power Cord ti9199a 311771D...
  • Page 17 Parts • 311771D Parts Models 254973 • • • ti9654a ti9655b •...
  • Page 18 Ref. Part Description 15K225 HOPPER, 5 gallon 15J181 BASE 15K227 FRAME, tubular, painted, silver 117791 SCREW, cap, tri lobe 120783 SCREW, mach, pnh 15K228 HANDLE, tubular, painted, silver 288608 COVER, adjustable 15J505 CORD, power 120817 FASTENER, push-on hat w/hole 117693 SWITCH, power 120700 SCREW, shoulder 15J222 GUARD, burp 13▲†...

  • Page 19: Technical Data

    Technical Data Main Unit Power Requirements ....120 Vac, 60 Hz, 15A, 1 phase Maximum Fluid Working Pressure ....50 psi, (3.5 bar) Maximum Air Working Pressure .

  • Page 20: 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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254973

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