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 Graco Inc.
Models Models Manual Electric Requirements Country 248201 120V, 60 Hz, 15 A N. America 310624 248370 / 248315 230V. 50 Hz, 10 A Europe 310624 248370 230V. 50 Hz, 10 A Europe 310624 248370 230V. 50 Hz, 10 A Europe 310625 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 A Europe 310697 Swiss 248315 230V.
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 serious 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 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.
Component Identification Component Identification B C R P K A E F ti4500a S W H D M U V L T 310645H 5
Component Identification Component Identification ITEM 6 COMPONENT 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)* P Prime Switch R Power Cord S Pump Access Screw T Hose - 25-ft.
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. WARNING ti4292a 2 Turn fluid flow regulator (K) all the way down to reduce pressure. Read warnings, page 3. K • The sprayer cord includes a grounding wire with an appropriate grounding prong. Ground ti4295a ti4303a 3 Open gun air valve (aa).
Preparation Auxiliary Air Compressor Hose Lengths • Use Auxiliary Air Hookup Kit 287328 when additional atomization air is necessary. • The system comes with a twin line hose set consisting 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 exceed 100 feet in length. CAUTION Attaching auxiliary air to sprayer without using the Auxiliary Air Hookup Kit will damage sprayer.
Removing and Replacing Hopper, Front and Back Covers Removing and Replacing Hopper, Front and Back Covers Front Cover Before performing any service on sprayer always: Removing Cover • • • • • • • Read all warnings, page 3. Read operating instructions manual, page 2. Relieve Pressure, page 7. Turn main power switch (A) OFF. Unplug sprayer from outlet. Remove air and material hoses. Clean sprayer. See Operation Manual 310624 or 310625. Hopper Removing Hopper 1 To remove hopper loosen fitting.
Removing and Replacing Hopper, Front and Back Covers Back Cover To access the motor and all other components, it is necessary to remove the hopper, front and back covers. Replacing Cover 1 To reposition cover on sprayer frame, tip the cover back, toward you and slide it down, into place in the base of the frame. Then push the top back into place. Align screw holes in side and top of cover with holes in frame. Removing Cover 1 Completely remove 6 screws (2 on top and each side) from cover.
RotoFlex™ HD Pump RotoFlex™ HD Pump 4 Rotate pump assembly sideways. Pull entire assembly out of front of sprayer frame. Use RotoFlex HD Pump Replacement Kit 287314. IMPORTANT • After replacing RotoFlex HD Pump hose, always follow Hose Break-In Procedure, page 13, before operating sprayer. Disassembly First read and follow instructions in the Before performing any service on sprayer section, page 9. ti4376a . Then remove hopper and front cover, page 9. 1 Loosen and remove hose extension.
RotoFlex™ HD Pump Reassembly 4 Slide plates together, inserting inner plate in outer plate, matching alignment holes. 1 Bend and kink new pump hose from kit in the middle as shown, making sure dots on hose fittings face each other. DOTS 5 Replace bracket assembly in housing making sure the mounting screw hole, located in the top center of the inner plate, faces up.
RotoFlex™ HD Pump Hose Break-In Procedure 3 Turn power switch (A) on. 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 approximately 1 gallon hot water in sprayer hopper to lubricate the pump. ti4364a WATER 5 Turn fluid flow regulator (K) up to full pressure. ti4301a K ti4655a 6 Run sprayer dry for 1 to 1-1/2 minutes.
Compressor and Motor Repair Compressor and Motor Repair For 120 V sprayer use Compressor and Motor Replacement Kit, 287315. 4 Loosen 4 bolts (2 each 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, page 9.
Compressor and Motor Repair Reassembly 8 Loosen 2 shoulder bolts about 2-3 turns. Do not remove them. 1 Using two new shoulder 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 completely. 2 Slide new motor into sprayer frame, aligning motor frame opening under bolts. Tighten bolts. ti4425a ti4468a 10 Slide out motor assembly.
Compressor and Motor Repair 6 Slide belt over pulleys and set tension. See Replacing Belt, page 19. 8 Replace reattach green 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 extension, page 12. 11 Replace front and back covers and hopper. See Removing and Replacing Hopper, Front and Back Cover, page 9.
Compressor Rebuild Kit Compressor Rebuild Kit To replace piston, seals and sleeve. For 120 V sprayer use Compressor Rebuild Kit 287330. 4 Remove 3/8 in. bolt holding piston to 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 of motor housing. 1 Disconnect air line to motor.
Compressor Rebuild Kit Reassembly 5 Replace motor fan 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. See Removing and Replacing Hopper, Front and Back Cover, page 9. 4 Tighten bolts.
Removing and Replacing Belt Removing and Replacing Belt Use Belt Replacement Kits 118845. Replacing Belt First read and follow instructions in the Before performing any service on sprayer section, page 9. 1 Using new belt from Kit, position new belt around pulleys making sure the teeth in the belt are properly engaged with teeth on pulleys. Then remove hopper, front and back covers, page 9. Remove hose extension and RotoFlex HD Pump assembly from frame, page 11.
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. ti4477a A loose belt will not last long. If in doubt, tighten more. 20 7 Replace RotoFlex HD Pump and hose extension, page 12.
Roller Replacement Roller Replacement Use Roller Replacement Kit 287321. Reassembly Kit includes 2 rollers, 4 nylon washer, and 2 retaining rings. 1 Replace roller assembly. Disassembly ti4398a First read and follow instructions in the Before performing any service on sprayer section, page 9. Then remove hopper, front and back covers, page 9. Remove hose extension and RotoFlex HD Pump assembly from frame, page 11. 2 Reinstall snap ring. 1 Remove snap ring.
Rotor Assembly Replacement Rotor Assembly Replacement Reassembly Use Pump Assembly Replacement Kit 287255. 1 Put new rotor assembly from kit on shaft. Disassembly First read and follow instructions in the Before performing any service on sprayer section, page 9. 2 Insert a wrench in the pulley to prevent it from moving.. Then remove hopper, front and back covers, page 9. Remove hose extension and RotoFlex HD Pump assembly from frame, page 11.
Air Cylinder and Solenoid Valve Air Cylinder and Solenoid Valve Use Cylinder Replacement Kit, 287323. For 120 V sprayer use Solenoid Replacement Kit 287324. 4 Gently push cylinder forward, relieving tension on pin. Pull out pin. For 230V sprayer use Solenoid Replacement Kit 287351. ti4409a Disassembly First read and follow instructions in the Before performing any service on sprayer section, page 9. Then remove hopper, front and back covers, page 9.
Air Cylinder and Solenoid Valve Reassembly 6 Replace cotter pin through hole in pin, bending ends to secure. 1 Insert crowned backing nut on shaft of cylinder. 2 Using new cylinder from kit, position cylinder in sprayer frame, inserting end of cylinder through pump bracket mounting hole. ti4456a ti4421a 3 Install locking nut flush to end of shaft. 7 Reattach electric wire terminals. Terminals are not polarity sensitive and can be connected to either post. 4 Install dampening grommet.
Relief Valve and Flow Sensor Manifold Relief Valve and Flow Sensor Manifold For 120 V sprayer use Relief Valve Replacement Kit 287325. For 230 V sprayer use Relief Valve Replacement Kit 287350. Reassembly 1 Position new relief valve from Kit in back of sprayer. 2 Replace and tighten screws. 3 Reattach wires to Relief Valve. Disassembly First read and follow instructions in the Before performing any service on sprayer section, page 9. 4 Reattach air line from cooler to manifold.
Air Flow Sensor Replacement Air Flow Sensor Replacement For 120 V sprayer use Sensor Replacement Kit 287326. For 230 V sprayer use Sensor Replacement Kit 287345. 2 Rotate counter-clockwise to remove sensor from manifold. If you are just replacing the sensor, you do not have to remove the motor first. Disassembly ti4480a First read and follow instructions in the Before performing any service on sprayer section, page 9. Then remove hopper, front and back covers, page 9.
Troubleshooting Troubleshooting Pressure Relief, page 7 Problem Sprayer won’t run or stops intermittently Pump won’t pump material or low output Cause Solution Power switch not on Turn switch on. 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. Refer to Generator Requirements, page 8. Temperature too cold Allow unit to warm up.
Troubleshooting Problem Cause Material runs out of bottom of sprayer RotoFlex HD Pump worn out No air from compressor Speed of application too slow Solution Replace hose. Loose fittings Check and retighten all fittings. Gun air valve closed Open gun air valve. Gun needle plugged Clean needle and retry. Lines not connected Check all quick disconnect connections to gun and hoses. Damaged hose Replace hose. Worn compressor Service compressor. Contact a qualified Graco Service Center.
Air Diagram Air Diagram Air Cylinder Air Compressor Air Cooler Gun Regulator Guage One Way Valve One Way Valve Air Flow Control ti4369a Wiring Diagram Air Compressor Air Cylinder 39 51 32 Prime Switch 8 Power Switch 50 150/151 Air Flow Control 50 Green White Black ti4370d 50 310645H 29
Parts Parts ! # " $ " ! # ! " TI A 30 310645H
Parts List Parts List Item No. Part No.
Parts Parts 18 91 154 A 30 92 12 90 81 66 17 27 6 3 29 93 7 26 10 25 70 71 24 35 ti4372C 8 60 59 83 58 72 14 5B 5A 89 5 15 55 23 20 A 77 93 19 28 153 151 152a 32 152b 152c 152d 152e 150a 150b 150c 310645H
Parts List Parts List Item No. Part No. Description Qty 3 118844 REGULATOR, air, 1/8 in.
Technical Data Technical Data Maximum working fluid pressure Maximum working air pressure Material pressure operating range Compressor Type Air delivery Motor Hopper capacity Maximum delivery with texture material Dimensions Length Width Height Weight With hoses and gun Without hoses and gun Wetted parts Sound data Sound pressure level* Sound power level# Generator (minimum size requirement) Maximum external working air pressure (must use External Air Hookup Kit 287328 ONLY) 100 psi (6.9 bar) 45 psi (3.
Warranty Warranty Graco warrants all equipment referenced in this document which is manufactured by Graco and bearing its name to be free from defects in material and workmanship on the date of sale to the original purchaser for use. 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.
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. MM 310645 Graco Headquarters: Minneapolis International Offices: Belgium, China, Japan, Korea GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440-1441 www.graco.com 3/2004 Rev.