Manuel d'utilisation / d'entretien du produit 249075 du fabricant Graco
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For water-based materials only. For professional use only. Not approved for use in European explosive atmosphere locations. Model 248195, Series A Model 248269, Series A Model 249075, Series A 580 psi (4 MPa, 40 bar) Maximum Working Pressure IMPORTANT SAFETY INSTRUCTIONS Read all warnings and instructions in this manual.
Table of Contents 2 309977H Table of Contents Table of Contents .......................... 2 Warnings ................................. 3 General Repair Information .................. 6 Pressure Relief .......................... 6 Pressure Relief Procedure .
Warnings 309977H 3 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, refer back to these Warnings.
Warnings 4 309977H W ARNING W ARNING W ARNING W ARNING FIRE AND EXPLOSION HAZARD Flammable fumes, such as solvent, in work area can ignite or explode. To help prevent fire and explosion: • Use equipment in well ventilated area. • Sprayer generates sparks.
Warnings 309977H 5 W ARNING W ARNING W ARNING W ARNING MOVING PARTS HAZARD Moving parts can pinch, cut or amputate fingers and other body parts. • Keep clear of moving parts. • Do not operate equipment with protective guards or covers removed. • Pressurized equipment can start without warning.
General Repair Information 6 309977H General Repair Information Pressure Relief The system pressure must be manually relieved to pre- vent the system from starting or spraying accidentally.
General Repair Information 309977H 7 General Repair Information Auxiliary Air Compressor An external air compressor may be connected to the applicator air line fitting, This may be useful for the appli- cation of decorative or hard-to-spray materials.
Troubleshooting 8 309977H Troubleshooting Relieve pressure; page 6. MOTOR WON’T OPERATE . TYPE OF PROBLEM WHAT TO CHECK If check is OK, go to next check WHAT TO DO When check is not OK, refer to this column Basic Fluid Pressure Prob- lems 1. Pressure control knob setting.
Troubleshooting 309977H 9 Basic Electrical Problems (continued) 7. Brush length which must be 1/4 in, minimum. See page 14. NOTE: Brushes do not wear at the same rate on both sides of motor. Check both brushes. 7. Replace brushes. See page 14. 8. For broken or misaligned motor brush springs.
Troubleshooting 10 309977H LOW OR FLUCTUATING OUTPUT TYPE OF PROBLEM WHAT TO CHECK If check is OK, go to next check WHAT TO DO When check is not OK, refer to this column Low Output 1. For worn spray tip. 1. Follow Pressure Relief Procedure , page 6, then replace tip.
Troubleshooting 309977H 11 MOTOR IS HOT AND RUNS INTERMITTENTLY Low Output continued 13. Low stall pressure. 13. Do either or both: a. Turn pressure control knob fully clock- wise. Make sure pressure control knob is properly installed to allow full clockwise position.
Troubleshooting 12 309977H ELECTRICAL SHORT TYPE OF PROBLEM WHAT TO CHECK If check is OK, go to next check WHAT TO DO When check is not OK, refer to this column Building circuit breaker opens as soon as sprayer switch is turned on. CAUTION Any short in any part of the motor power circuit will cause the control circuit to inhibit sprayer operation.
Spin Test 309977H 13 Spin Test Setup To check armature, motor winding and brush electrical continuity: 1. Relieve pressure; page 6. 2. Remove motor, page 15. 3. Fig. 3. Remove six screws (12) and motor cover (18). 4. Fig. 2. Disconnect wire harness (155) from control board.
Motor Brush Replacement 14 309977H Motor Brush Replacement Motor Brush Removal Replace brushes worn to less than 1/2 in. Check both sides. Order Brush Repair Kit 243642 for 220-240 Vac motors and 243215 for 100-120 Vac motors with exter- nal capacitor.
Motor Replacement 309977H 15 Motor Replacement Removal 1. Relieve pressure; page 6. 2. Fig. 5. Remove pump module (A). a. Loosen clamp rod (20). b. Release hopper quick-release clamp (28). c. Disconnect pump module (A) from frame (35). F IG .5 3. Fig.
Motor Replacement 16 309977H F IG .6 <HOORZ ' & WL.
Pressure Control Repair 309977H 17 Pressure Control Repair Motor Control Board Diagnostics Note: Keep a new transducer on hand to use for test. 1. Relieve pressure; page 6.
Pressure Control Repair 18 309977H Pressure Control Repair Motor Control Board Removal Refer to Wiring Diagram, page 29. 1. Relieve pressure; page 6. 2. Remove five screws (12) and motor cover (18). 3. Cut wire tie holding wiring to motor control board (38).
Pressure Control Repair 309977H 19 Pressure Control Transducer Removal Refer to Wiring Diagram, page 29. 1. Relieve pressure; page 6. 2. Remove five screws (12) and motor cover (18). 3. Disconnect lead (E) from motor control board (38). 4. Remove strain relief (49) from circuit board bracket (21).
Pump Repair 20 309977H Pump Repair Removal 1. Relieve pressure; page 6. 2. Perform Storage More than 24 hours procedure in Operation Manual 309973, 309974 or 309975. 3. Fig. 8. Loosen clamp rod (20). F IG .8 4. Release hopper quick-release clamp (28).
Pump Repair 309977H 21 Disassemble Pump TIP: It may be easier to leave the pump connected to the connecting rod and bearing housing if the only assemblies to be cleaned and inspected is the intake housing or piston valve. 1. Relieve pressure; page 6. 2.
Pump Repair 22 309977H Assemble Pump 1. Fig. 16. Place end of piston rod (203) in vise. Install new piston seal (222). Torque piston valve to 27 ft-lb (36.6 N m). F IG .1 6 2. Fig. 17. Install packing nut (216). Hand tighten and then tap screw driver.
Bearing Housing and Connecting Rod 309977H 23 Bearing Housing and Connecting Rod Removal 1. Relieve pressure; page 6. 2. Fig. 20. Do Pump Repair Removal, page 20. 3. Tip motor/drive housing assembly horizontal. Remove four screws (90), washers (71) and gear housing base (25).
Drive Housing 24 309977H Drive Housing Removal 1. Relieve pressure; page 6. 2. Fig. 5. Remove pump module (A). a. Loosen clamp rod (20). b. Release hopper quick-release clamp (28). c. Disconnect pump module (A) from frame (35). 3. Fig. 6. Remove Five screws (12) and motor cover (18).
Drive Housing 309977H 25 Drive Housing Installation 1. Fig. 21. Install thrust washers (10, 11, 14) on combi- nation gear (29). Install combination gear in drive housing (37). 2. Liberally apply bearing grease (supplied with combi- nation gear) to all gear teeth and to drive housing areas called out by note 1.
Parts Drawing 26 309977H Parts Drawing D E F WLE SDJH.
Parts List 309977H 27 Parts List Models 248195, 248269, 249075; Series A Ref. Part Description Qty. 1 100004 SCREW, cap, hex hd 1 2 101242 RING, retaining, ext.
Parts Drawing 28 309977H Parts Drawing GHQPDUN ,WDO VZLW]HUODQG 0RGHO 0RGHO 0RGHO WLE .
Parts List 309977H 29 Parts List Models 248195, 248269, 249075; Series A Ref. Part Description Qt y. 6 PM 106115 WASHER, lock spring (hi-collar) 4 7 PM 107210 SCREW, cap, socket hd 4 10 PM 114672 WASH.
Parts Drawing 30 309977H Parts Drawing .
Parts - Pump 248764 309977H 31 Parts - Pump 248764 Models 248764; Series A 248405 Applicator Tool Box Ref. Part Description Qt y. 201 15D113 CYLINDER, pump 1 202 15D108 HOUSING, outlet 1 203 15D532 RO.
Notes 32 309977H Notes.
Technical Data 309977H 33 Technical Data Maximum air working pressure ............................. 2 5 0p s i (1.7 MPa, 17 bar) Maximum working pressure ............................... 5 8 0p s i (4.0 MPa, 40 bar) Generator required .................
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. 2ULJLQDOLQVWUXFWLRQV This manual contains English.
Un point important après l'achat de l'appareil (ou même avant l'achat) est de lire le manuel d'utilisation. Nous devons le faire pour quelques raisons simples:
Si vous n'avez pas encore acheté Graco 249075 c'est un bon moment pour vous familiariser avec les données de base sur le produit. Consulter d'abord les pages initiales du manuel d'utilisation, que vous trouverez ci-dessus. Vous devriez y trouver les données techniques les plus importants du Graco 249075 - de cette manière, vous pouvez vérifier si l'équipement répond à vos besoins. Explorant les pages suivantes du manuel d'utilisation Graco 249075, vous apprendrez toutes les caractéristiques du produit et des informations sur son fonctionnement. Les informations sur le Graco 249075 va certainement vous aider à prendre une décision concernant l'achat.
Dans une situation où vous avez déjà le Graco 249075, mais vous avez pas encore lu le manuel d'utilisation, vous devez le faire pour les raisons décrites ci-dessus,. Vous saurez alors si vous avez correctement utilisé les fonctions disponibles, et si vous avez commis des erreurs qui peuvent réduire la durée de vie du Graco 249075.
Cependant, l'un des rôles les plus importants pour l'utilisateur joués par les manuels d'utilisateur est d'aider à résoudre les problèmes concernant le Graco 249075. Presque toujours, vous y trouverez Troubleshooting, soit les pannes et les défaillances les plus fréquentes de l'apparei Graco 249075 ainsi que les instructions sur la façon de les résoudre. Même si vous ne parvenez pas à résoudre le problème, le manuel d‘utilisation va vous montrer le chemin d'une nouvelle procédure – le contact avec le centre de service à la clientèle ou le service le plus proche.
