User manual GRACO SYSTEM 4900 REV D 309246

[. . . ] READ AND KEEP FOR REFERENCE. System HVLP Turbine Sprayers 120V AC 50/60 Hz System 2500t Sprayer with Two-Stage Turbine Model 826000 5 psi (34 kPa, 0. 3 bar) Maximum Working Pressure System 3800t Sprayer with Three-Stage Turbine Model 826001 6 psi (41 kPa, 0. 4 bar) Maximum Working Pressure System 4900t Sprayer with Four-Stage Turbine Model 826004 8 psi (55 kPa, 0. 5 bar) Maximum Working Pressure Model descriptions are in Turbine Components Table on page 4. Related Manuals System ProCartt . 309205 7947A System 4900t Shown The SHERWIN­WILLIAMS COMPANY, CLEVELAND, OHIO 44115 ECOPYRIGHT 2000, GRACO INC. Table of Contents Warnings . 24 Symbols Warning Symbol WARNING This symbol alerts you to the possibility of serious injury or death if you do not follow the instructions. Caution Symbol CAUTION This symbol alerts you to the possibility of damage to or destruction of equipment if you do not follow the instructions. WARNING FIRE AND EXPLOSION HAZARD Improper grounding, poor ventilation, open flames, or sparks can cause a hazardous condition and result in a fire or explosion and serious injury. D If there is any static sparking or you feel an electric shock while using this equipment, stop spraying immediately. [. . . ] Clean spray gun and cup as instructed in HVLP­Turbine Spray Gun manual 309205. 10 309246 Maintenance Daily The System HVLP Turbine Sprayers are lifetime lubricated. The turbine filter must be clean at all times to provide sufficient air flow to cool motor and atomize the fluid. NOTE: To check filter, turn on turbine and place piece of paper against pre-filter. System 3800t and System 4900t models have an air filter indicator light on the front panel. If the filter is clogged or has low airflow the light will come on as in Fig. 7 below. WARNING To avoid damage to the turbine and possible electric shock, never install a damp filter in the turbine. CAUTION To keep out dirt, do not operate the turbine sprayer without both filters installed. 1 20 21 22 16 Fig. Loosen four thumbscrews (16), and remove filter retainer (15) and pre-filter (22). Remove main filter (21) and clean by using one of the following three methods: D Tap filter gently on flat surface, dirty side down. 8049A 15 03072 Weekly Check hose for cracks, leaks, and holes. Replace if necessary. Annually or Every 600 Hours, Whichever Comes First Replace motor brushes 600 hours after turbine sprayer operation. NOTE: It is recommended that an authorized service center perform the motor brush replacement procedure on page 14. CAUTION To prevent damage to filter, do not use compressed air on a wet filter. D Direct compressed air (100 psi [7 bar, 70 kPa] maximum) through filter panel in opposite direction of arrows on side of filter (from the clean side to the dirty side). Do not use compressed air on damp or wet filter. D 309246 11 Notes 12 309246 Troubleshooting PROBLEM No fluid delivery CAUSE No material, no remote container pressurization, hose or pickup tube clogged SOLUTION Check container for material. Check for leaks at the container gasket (2-quart pressure pot cover or 21/2-gallon pressure pot wing nuts). Check for air flow from male quick disconnect at compressor outlet (should be approx. Check hole in 21/2-gallon pressure pot cover under regulator or in 2-quart pressure pot cover at needle valve. Compressor not starting Turbine not starting Cold weather operation See System ProCartt Cold Weather Operation on page 9. Remove cover and turbine, and check for free motor rotation and for brush wear. Return to authorized service center. No power Hose too long Circuit breaker trips Filter clogged High ambient temperature Excessive brush wear Excessive current draw 309246 13 Repair WARNING Turn off turbine and unplug power for the following procedures. Motor Brush Replacement NOTE: It is recommended that this procedure be performed by an authorized service center. Use System HVLP Turbine Sprayer Disassembly procedure on page 14 to take turbine apart. Note: Do not install new brushes in a turbine that has had brush holders damage the commutator. Keep lead wires from all rotating parts and motor frame. System HVLP Turbine Sprayer Disassembly 1. If necessary, clean and replace filter according to maintenance procedure on page 11. Carefully lift unit by turbine baseplate (2) from turbine cover (1), and place upright on work surface. [. . . ] 1 phase, 14A minimum Power cord (extension cord must be 3-wire, 12 AWG, 50 ft [15 m] or shorter) System 2500t . aluminum, polyethylene 2-quart (1. 9 liter) accessory remote pressure pot . aluminum, brass, polyethylene 21/2-gallon (9. 5 liter) accessory remote pressure pot . steel with solvent-resistant finish, EPDM gasket (standard) Turbine shipping weight System 2500t . [. . . ]