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Repair and Parts
RTX 1500 Electric Texture Sprayer
310645H
- For Water-Based Materials Only -
(Consult your Material Supplier for Warnings and Application Requirements)
Models: Page 2
Maximum Working Air Pressure: 45 psi (3.1 bar)
Maximum Working Fluid Pressure: 100 psi (6.9 bar)
Read all warnings and instructions.
CAUTION
Use RTX 1500 non-bleeder texture gun 248091.
All other guns will damage sprayer.
ti4305a
Graco Inc. P.O. Box 1441 Minneapolis, MN 55440-1441
www.graco.com
Copyright 2004
Grac
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Models Models Manual Country Languages Model Electric 287328* Requirements Operation Gun 248201 120V, 60 Hz, 15 A N. America 310624 310694 310616 English 248370 / 248315 230V. 50 Hz, 10 A Europe 310624 310616 French 248370 230V. 50 Hz, 10 A Europe 310624 Dutch 248370 230V. 50 Hz, 10 A Europe 310625 310616 Spanish 248370 / 248315 230V. 50 Hz, 10 A Europe 310625 Italian 248370 230V. 50 Hz, 10 A Europe 310625 Portuguese 248370 / 248315 230V. 50 Hz, 10 A Europe 310625 German 248315 230V. 50 Hz, 10
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Warnings The following are general Warnings related to the safe setup, use, maintenance and repair of this equipment. Additional, more specific warnings may be found throughout the text of this manual where applicable. Warning WARNING This symbol alerts you to the possibility of seri- ous injury or death if you do not follow the instructions. Caution CAUTION Alerts you to the possibility of damage or destruction of equipment if you do not follow the instructions. Warnings Fire and Explosio
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Warnings WARNINGS Pressurized Equipment Hazard Compressed air can inject in skin. Air tubing rupture can cause injury if disconnected while under pressure. To reduce risk of injury: � Never exceed maximum working pressure of any attachment. � Do not direct airstream at body. � Follow Pressure Relief Procedure, page 7 whenever you are instructed to relieve pressure, stop spraying, service equipment, install or clean spray nozzle or disconnect or connect hose. Cleaning Solvent Hazard with Plast
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Component Identification Component Identification B C R P K A E F ti4500a S D W H M U L V T 310645H 5
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Component Identification Component Identification COMPONENT ITEM A Main Power Switch B Nozzle Storage C Hopper D Hopper Connect/Disconnect E Graco RotoFlex™ HD Pump F Material Outlet H Air Outlet K Fluid Flow Regulator and Pressure Gauge L Gun Nozzle (5 sizes) M Gun (see manual 310616)* PPrime Switch RPower Cord S Pump Access Screw T Hose - 25-ft. U Material Thickness Gauge V Cleaning Ball W Spare Hose Gaskets 6 310645H
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Preparation Preparation Pressure Relief Procedure Grounding and Electric Requirements The sprayer must be grounded. Grounding reduces the 1 Turn Main Power Switch risk of electrical shock by providing an escape wire for (A) OFF. the electrical current. WARNING ti4292a 2 Turn fluid flow regulator Read warnings, page 3. (K) all the way down to reduce pressure. � The sprayer cord includes a Ground grounding wire with an appro- priate grounding prong. K ti4295a ti4303a 3 Open gun air valve (aa)
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Preparation Auxiliary Air Compressor Hose Lengths � Use Auxiliary Air Hookup Kit 287328 when additional � The system comes with a twin line hose set consist- 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. ID air hose. Additional hose sections can be added. Total final length of hose used should not CAUTION exceed 100 feet in length. Attaching auxiliary air to sprayer without using the Auxiliary Air Hookup Kit will damage sprayer. CAUTION
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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 3. 1 Remove hopper. � Read operating instructions manual, page 2. � Relieve Pressure, page 7. 2 Unscrew and � Turn main power switch (A) OFF. remove � Unplug sprayer from outlet. 3a knob (S). � Remove air and material hoses. � Clean sprayer. See Operation Manual 310624 or 3 Place you 31
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Removing and Replacing Hopper, Front and Back Covers Back Cover To access the motor and all other components, it is Replacing Cover necessary to remove the hopper, front and back covers. 1 To reposition cover Removing Cover on sprayer frame, tip the cover back, 1 Completely toward you and remove 6 slide it down, into screws (2 on top place in the base of and each side) the frame. Then from cover. push the top back into place. Align screw holes in side ti4430a and top of cover with ho
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RotoFlex™ HD Pump RotoFlex™ HD Pump Use RotoFlex HD Pump Replacement Kit 287314. 4 Rotate pump assembly sideways. Pull entire assembly out of front of IMPORTANT sprayer frame. � After replacing RotoFlex HD Pump hose, always follow Hose Break-In Procedure, page 13, before operating sprayer. Disassembly ti4376a First read and follow instructions in the Before performing any service on sprayer section, page 9. . Then remove hopper and front cover, page 9. 1 Loosen and remove hose extension.
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RotoFlex™ HD Pump 4 Slide plates together, inserting inner plate in outer Reassembly plate, matching alignment holes. 1 Bend and kink new DOTS pump hose from kit in 5 Replace bracket the middle as shown, assembly in housing making sure dots on making sure the hose fittings face each mounting screw hole, other. located in the top cen- ter of the inner plate, faces up. ti3127a 2 Insert hose ends through holes in inner ti4383a hose bracket, keeping dots on fittings facing 6 Slide pu
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RotoFlex™ HD Pump 3 Turn power switch (A) on. Hose Break-In Procedure 1 Make sure fluid flow regulator (K) is turned all the way down. ti4653a 4 Hold in prime switch (P). K P ti4303a 2 Pour approxi- mately 1 gallon hot water in ti4364a WATER sprayer hopper 5 Turn fluid flow regulator to lubricate the (K) up to full pressure. pump. ti4301a K ti4655a 6 Run sprayer dry for 1 to 1-1/2 minutes. 310645H 13
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Compressor and Motor Repair Compressor and Motor Repair For 120 V sprayer use Compressor and Motor 4 Loosen 4 bolts (2 each Replacement Kit, 287315. side) to loosen tension on belt. For 230 V sprayer use Compressor and Motor Replacement Kit, 287344. Kits include motor/compressor and mounting hardware. Disassembly ti4388b First read and follow instructions in the Before performing any service on sprayer section, page 9. 5 Slide belt off motor pully. Then remove hopper, front and back covers,
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Compressor and Motor Repair 8 Loosen 2 shoulder Reassembly bolts about 2-3 turns. 1 Using two new shoulder Do not remove them. bolts and rubber mounts included in your kit, insert bolts into openings until they start to snug up on rubber mounts. ti4463a ti4465a 9 Remove single shoulder bolt on other side of motor com- 2 Slide new motor into pletely. sprayer frame, aligning motor frame opening under bolts. Tighten bolts. ti4425a ti4468a 10 Slide out motor 3 Replace shoulder bolt as
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Compressor and Motor Repair 6 Slide belt over pulleys and set tension. See Replacing 8 Replace reattach green Belt, page 19. ground wire and grounding nut. 7 Reattach black and white wires to motor. Wires are not polarity sensitive. ti4470a ti4412a 9 Replace cover plate and screws. 10 Replace RotoFlex HD Pump and hose exten- sion, page 12. 11 Replace front and back covers and hopper. See Removing and Replacing ti4471a Hopper, Front and Back Cover, page 9. 16 310645H
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Compressor Rebuild Kit Compressor Rebuild Kit To replace piston, seals and sleeve. 4 Remove 3/8 in. bolt holding piston to For 120 V sprayer use Compressor Rebuild Kit 287330. motor shaft. For 230 V sprayer use Compressor Rebuild Kit 287331. ti4707a Disassembly First read and follow instructions in the Before performing any service on sprayer section, page 9. Then remove back cover, page 9. 5 Loosen 4 bolts on top 1 Disconnect air line to of motor housing. motor. ti4708a ti4460a 2 Remove 3
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Compressor Rebuild Kit 5 Replace motor fan Reassembly and center fan bolt. 1 Insert new piston rod from kit in motor housing. 6 Tighten bolt. ti4704a ti4700a 7 Replace motor cover and screws. 2 Replace and tighten piston bolt. 3 Replace top motor hosing and 4 bolts. ti4701a ti4485a 8 Reconnect air line from motor to cooler. 9 Replace back cover. 4 Tighten bolts. See Removing and Replacing Hopper, Front and Back Cover, page 9. ti4703a 18 310645H
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Removing and Replacing Belt Removing and Replacing Belt Use Belt Replacement Kits 118845. Replacing Belt 1 Using new belt from Kit, First read and follow instructions in the Before position new belt around performing any service on sprayer section, page 9. pulleys making sure the teeth in the belt are Then remove hopper, front and back covers, page 9. properly engaged with teeth on pulleys. Remove hose extension and RotoFlex HD Pump assembly from frame, page 11. Removing Belt ti4392a 1 Lo
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Removing and Replacing Belt 5 Tighten all 4 bolts. A correctly tensioned belt will feel very tight. To 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 Turn belt one more time with your hand to make sure teeth are properly engaged and tension is correct. 7 Replace RotoFlex HD ti4477a Pump and hose exten- sion, page 12. A loose belt will not last long. If in doubt, tighten ti4473a more. 8
