Graco 248650 Repair And Parts Manual
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Graco 248650 Repair And Parts Manual

Rental sprayer
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Repair and Parts
TexFinish™ 1500 Rental Sprayer
(Consult your Material Supplier for Warnings and Application Requirements)
Model: 248650
Maximum Working Air Pressure: 45 psi (3.1 bar)
Maximum Working Fluid Pressure: 100 psi (6.9 bar)
Important Safety Instructions
Read all warnings and instructions in this manual.
Save these instructions.
NOTICE
Use RTX 1500 non-bleeder texture gun (model
248903) only. All other guns will damage sprayer.
- For Water-Based Materials Only -
310717E
ti4500b

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  • Page 1 TexFinish™ 1500 Rental Sprayer 310717E - For Water-Based Materials Only - (Consult your Material Supplier for Warnings and Application Requirements) Model: 248650 Maximum Working Air Pressure: 45 psi (3.1 bar) Maximum Working Fluid Pressure: 100 psi (6.9 bar) Important Safety Instructions Read all warnings and instructions in this manual.
  • Page 2 Check equipment daily. Repair or replace worn or damaged parts immediately. • Do not alter or modify this equipment. • Use the equipment only for its intended purpose. Call your Graco distributor for information. • For professional use only. •...

  • Page 3: Personal Protective Equipment

    Warnings Warnings Pressurized Equipment Hazard Compressed air can inject in skin. Air tubing rupture can cause injury if disconnected while under pres- sure. To reduce risk of injury: • Never exceed maximum working pressure of any attachment. • Do not direct airstream at body. •...

  • Page 4: Component Identification

    Component Identification Component Identification ti4500b 310717E...
  • Page 5 Component Identification Component Identification ITEM COMPONENT Main Power Switch Nozzle Storage Hopper Hopper Connect/Disconnect Graco RotoFlex™ HD Pump Material Outlet Air Outlet Fluid Flow Regulator and Pressure Gauge Gun Nozzle (5 sizes) Gun (see manual 310616)* Prime Switch Power Cord Pump Access Screw Hose - 25-ft.

  • Page 6: Pressure Relief Procedure

    Preparation Preparation Pressure Relief Procedure Grounding and Electric Requirements 1. Turn Main Power Switch (A) OFF. The sprayer must be grounded. Grounding reduces the risk of electrical shock by providing an escape wire for the electrical current. ti4292a 2. Turn fluid flow regulator (K) all the way down to reduce pressure.

  • Page 7: Hose Lengths

    Hour Meter Auxiliary Air Compressor Hose Lengths • Use Auxiliary Air Hookup Kit 287328 when addi- • The system comes with a twin line hose set consist- tional atomization air is necessary. ing of a 1 in. ID x 25 ft (25 mm x 7.6 m) material hose and a 3/8 in.

  • Page 8: Front Cover

    Removing and Replacing Hopper, Front and Back Covers Removing and Replacing Hopper, Front and Back Covers Before performing any service on sprayer Front Cover always: Removing Cover • Read all warnings, page 2. 1. Remove hopper. • Read operating instructions manual 310716. 2.

  • Page 9: Back Cover

    Removing and Replacing Hopper, Front and Back Covers Back Cover To access the motor and all other components, it is nec- Replacing Cover essary to remove the hopper, front and back covers. 1. To reposition cover on sprayer Removing Cover frame, tip the cover back, toward 1.
  • Page 10 RotoFlex™ HD Pump RotoFlex™ HD Pump Use RotoFlex HD Pump Replacement Kit 287314. 4. Rotate pump assem- bly sideways. Pull IMPORTANT entire assembly out of • After replacing RotoFlex HD Pump hose, front of sprayer frame. always follow Hose Break-In Procedure, page 12, before operating sprayer.
  • Page 11 RotoFlex™ HD Pump Reassembly 6. Replace bracket assembly in housing making sure the 1. Bend and kink new mounting screw hole, pump hose from kit in located in the top the middle as shown, center of the inner making sure dots on plate, faces up.
  • Page 12 RotoFlex™ HD Pump Hose Break-In Procedure 3. Turn power switch (A) 1. Make sure fluid flow regulator (K) is turned all the way down. ti4653a 4. Hold in prime switch (P). ti4364a ti4303a 5. Turn fluid flow regula- tor (K) up to full pres- 2.
  • Page 13 Compressor and Motor Repair Compressor and Motor Repair For 120 V sprayer use Compressor and Motor Replace- 4. Loosen 4 bolts (2 each ment Kit, 287315. side) to loosen tension on belt. Kits include motor/compressor and mounting hardware. Disassembly First read and follow instructions in the Before perform- ing any service on sprayer section, page 8.
  • Page 14 Compressor and Motor Repair 8. Loosen 2 shoulder 10. Slide out motor bolts about 2-3 turns. assembly. Do not remove them. ti4463a ti4462a 9. Remove single 11. Completely remove shoulder bolt on old shoulder bolts other side of motor and rubber mounts. completely.
  • Page 15 Compressor and Motor Repair Reassembly 5. Reattach air line to cooler and compressor. Tighten fitting. 1. Using two new shoulder bolts and rubber mounts 6. Slide belt over pulleys included in your kit, insert and set tension. See bolts into openings until Replacing Belt, page 18.
  • Page 16 Compressor Rebuild Kit Compressor Rebuild Kit To replace piston, seals and sleeve. For 120 V sprayer use Compressor Rebuild Kit 287330. For 230 V sprayer use Compressor Rebuild Kit 287331. Disassembly First read and follow instructions in the Before performing any ser- vice on sprayer section, page 8.
  • Page 17 Compressor Rebuild Kit Reassembly Replace motor cover and screws. Insert new piston rod from kit in motor housing. ti4485a Reconnect air line ti4700a from motor to cooler. Replace and tighten piston bolt. Replace back cover. See Replace top motor hosing Removing and and 4 bolts.

  • Page 18: Replacing Belt

    Removing and Replacing Belt Removing and Replacing Belt Replacing Belt Use Belt Replacement Kits 118845. First read and follow instructions in the Before perform- 1. Using new belt from Kit, ing any service on sprayer section, page 8. position new belt around pulleys making sure the Then remove hopper, front and back covers, page 8.
  • Page 19 Removing and Replacing Belt A correctly tensioned belt will feel very tight. To 5. Tighten all 4 bolts. measure correct tension, apply 4-5 lbs pressure at belt midpoint with thumb. Belt should have approximately 1/8 in. (3.175 mm) deflection. ti4394a 6.

  • Page 20: Roller Replacement

    Roller Replacement Roller Replacement Reassembly Use Roller Replacement Kit 287321. Kit includes 2 rollers, 4 nylon washer, and 2 retaining 1. Replace roller assem- rings. bly. Disassembly First read and follow instructions in the Before perform- ing any service on sprayer section, page 8. ti4398a Then remove hopper, front and back covers, page 8.
  • Page 21 Rotor Assembly Replacement Rotor Assembly Replacement Reassembly Use Pump Assembly Replacement Kit 287255. 1. Put new rotor assembly from kit on shaft. Disassembly 2. Insert a wrench in the First read and follow instructions in the Before perform- pulley to prevent it from ing any service on sprayer section, page 8.
  • Page 22 Air Cylinder and Solenoid Valve Air Cylinder and Solenoid Valve Use Cylinder Replacement Kit, 287323. 4. Gently push cylinder forward, relieving tension on pin. Pull For 120 V sprayer use Solenoid Replacement Kit out pin. 287324. Disassembly First read and follow instructions in the Before perform- ti4409a ing any service on sprayer section, page 8.
  • Page 23 Air Cylinder and Solenoid Valve Reassembly 6. Replace cotter pin through hole in pin, bending ends to 1. Insert crowned backing secure. nut on shaft of cylinder. 2. Using new cylinder from kit, position cylinder in ti4456a sprayer frame, inserting end of cylinder through 7.
  • Page 24 Relief Valve and Flow Sensor Manifold Relief Valve and Flow Sensor Manifold Reassembly For 120 V sprayer use Relief Valve Replacement Kit 287325. 1. Position new Relief Valve from Kit in back of sprayer. Disassembly 2. Replace and tighten screws. First read and follow instructions in the Before perform- 3.
  • Page 25 Air Flow Sensor Replacement Air Flow Sensor Replacement Reassembly For 120 V sprayer use Sensor Replacement Kit 287326. 1. Rotate new sensor If you are only replacing the sensor, you do not from kit clockwise, have to remove the motor first. all the way into opening in Relief Valve housing.

  • Page 26: Troubleshooting

    Troubleshooting Troubleshooting Pressure Relief, page 6 Problem Cause Solution Sprayer won’t run or stops intermit- Power switch not on Turn switch on. tently No power at wall outlet Check outlet by plugging in another appliance. If appliance does not work, try another outlet. Wrong size generator Use a 7500 watt or larger generator.
  • Page 27 Damaged hose Replace hose. Worn compressor Service compressor. Contact a quali- fied Graco Service Center. Speed of application too slow Material too thick Thin material. Nozzle too small Change nozzles to a larger size. See Operation Manual, Recommended Nozzle Selection Chart, page 20.

  • Page 28: Air Diagram

    Air Diagram Air Diagram Air Cylinder Air Compressor Air Cooler Regulator Guage One Way Valve One Way Valve Air Flow Control ti4369a Wiring Diagram ti4370c 310717E...
  • Page 29 Parts Parts ti8084a ti8084a 310717E...

  • Page 30: Parts List

    Parts List Parts List Ref. Part Description Qty. Ref. Part Description Qty. 91▲ 15E265 LABEL, identification 287315 KIT, compressor replacement 92▲ 15E266 LABEL, identification (includes 1A and 1B-1D), 120V 118872 GASKET sprayers 248903 GUN, non-bleeder 287330 KIT, compressor rebuild, 120V 15D366 PAD, isolator, hopper bracket sprayers 119381 COVER, terminal...
  • Page 31 Parts (Compressor) Parts (Compressor) 310717E...
  • Page 32 Parts List (Compressor) Parts List (Compressor) Ref. Part Description Qty. Ref. Part Description Qty. 118869 TUBE 119872 SCREW, shoulder 15D610 SHAFT, motor, mount 118889 GROMMET, isolator 287346 SHIELD, rear, assbly (includes 19, 118845 BELT 49A, 49B, 49C) 117728 FITTING, compression, union 15D561 COVER, tool tray 15D156 PULLEY, rotor 49B▲...

  • Page 33: Technical Data

    Technical Data Technical Data Maximum working fluid pressure 100 psi (6.9 bar) Maximum working air pressure 45 psi (3.1 bar) Material pressure operating range 0-100 psi (0 to 6.9 bar) Compressor Type Oilless Air delivery 6.5 CFM @ 40 psi (184.1 lpm @ 2.8 bar) Motor 120V, 60 Hz 15A Hopper capacity...
  • Page 34 Notes Notes 310717E...

  • Page 35: 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.
  • Page 36 Warranty TO PLACE AN ORDER, contact your Graco distributor, or call 1-800-690-2894 to identify the nearest distributor. All written and visual data contained in this document reflects the latest product information available at the time of publication. Graco reserves the right to make changes at any time without notice.

This manual is also suitable for:

Texfinish 1500 248650

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