User manual GRACO AX AIRLESS SPRAYER REPAIR

[. . . ] Repair AX Airless Sprayer 313249B - For portable spray applications of architectural paints and coatings (Specifications, page 3) Important Safety Instructions Read all warnings and instructions in this manual. Save these instructions. ti12662a AX Sprayer Model 257013 Related Manuals Operation: SG20 Gun (English): SG20 Gun (Spanish): SG20 Gun (French): 313248 313250 313251 313252 Graco Inc. 24 2 313249B Manual Conventions Manual Conventions WARNING Hazard Symbol WARNING: a potentially hazardous situation which, if not avoided, could result in death or serious injury. Warnings in the instructions usually include a symbol indicating the hazard. [. . . ] Check pressure control harness connection on front side of drive housing. Check length of BOTH brushes (brushes do not wear evenly on both sides of the motor). Have motor shop resurface commutator if possible, or replace motor using Motor Kit, page 18. Check for shorts using armature tester (growler) or perform spin test, Motor Diagnostic, page 19. Replace control board if damaged using Control Board Kit, page 18. Control board leads are improperly fastened or improperly mated Motor brushes are worn. Motor armature commutator damaged Motor armature shorting Control board damaged. CAUTION: Do not perform control board diagnostics until you have determined the armature is good. Sprayer Wiring Problems NOTE: Remove enclosure mounting screws and pull enclosure away from drive housing. Test voltage between open terminal of power switch and white electrical cord wire. Replace power switch if no voltage. Sprayer power switch damaged 12 313249B Advanced Troubleshooting Specific Problem Sprayer Wiring Problems (cont. ) Cause Motor thermal overload cutoff switch damaged. If switch remains open after motor cools, replace motor using Motor Kit, page 18. If thermal relief switch closes after motor cools, find correct cause of overheating. Make sure all terminal connections are tight. Terminals are damaged or loose General Problem: Circuit Breaker is Tripping Specific Problem Cause Solution Repair or replace any damaged wiring or terminals. Securely reconnect wires. Building circuit breaker opens Sprayer electrical wiring is as soon as sprayer is turned on pinched or insulation is damaged. Wires between pressure control switch and control board are pinched Motor armature is shorting Check for shorts using armature tester (growler) or perform spin test, Motor Diagnostics, page 19. If shorts are evident, replace motor using Motor Kit, page 18. See Control Board Diagnostics, page 19. Replace control board if damaged using Control CAUTION: Do not perform control board diagnostics until Board Kit, page 18. A bad motor armature can burn out a good motor control board. 313249B 13 Advanced Troubleshooting Specific Problem Building circuit breaker opens as soon as sprayer is plugged into outlet and sprayer is NOT turned on. NOTE: Remove enclosure mounting screws and pull enclosure away from drive housing. Take care not to pull on leads from electrical cord and power switch. Cause Sprayer electrical cord is damaged Solution 1. Replace power switch if damaged. Sprayer power switch damaged Also "Basic Electrical Problems" and "Sprayer Wiring Problems", page 12. General Problem: Erratic Motor Operation Specific Problem Sprayer quits after running for 5 to 10 minutes Cause Electrical outlet is damaged Electrical outlet supplying wrong voltage Solution Reset building circuit breaker or replace building fuse. "Motor is Hot", page 10. Also "Basic Electrical Problems" and "Sprayer Wiring Problems", page 12. Motor is overheating 14 313249B Advanced Troubleshooting General Problem: Low or Fluctuating Output Specific Problem Pump cycles, but output is low or surging Cause See Basic Troubleshooting, page 9. [. . . ] GHT 1 (not shown) KIT, pressure gage (not shown) 1 (included with models 232736 and 232737 only). Replacement Danger and Warning labels, tags, and cards are available at no cost. 313249B 21 Parts AX Spray System Model 257013 42 43 44 1 Apply light coat of lithium-based grease 53 30, 32, 38 31 64 13 63 54 1 50 23 57 63 70 71 72 73 58 41 7 51 61 5 13 3 56 19 63 52 12 55 61 15 18 59 2 69 16 ti2083c 22 313249B Technical Data Technical Data Working pressure range Electric motor Operating horsepower Maximum delivery (with tip) Paint hose Maximum tip hole size Weight, sprayer only Weight, sprayer, hose & gun Dimensions: Length Width Height Power cord Fluid inlet fitting Fluid outlet fitting Inlet screen on suction tube Wetted parts, pump & hose Wetted parts, gun Generator requirement Electrical power requirement Storage temperature range * Operating temperature range 0 - 207 bar, 21 MPa (0 - 3, 000 psi) 3. 5 AMP (open frame, universal) 3/8 0. 91 lpm (0. 24 gpm) 7. 6 m (25 ft) x 1/4 in. 0. 38 mm (0. 015 in. ) 6 kg (13 lb) 7. 8 kg (17 lb) 41 cm (16 in. ) 46 cm (18 in. ) 53 cm (21 in. ) 3 wire, 1. 0 mm2 x 2. 0 m (78 in. ) 1/4 npsm external thread 450 micron (35 mesh) stainless steel, brass, ultra-high molecular weight polyethylene (UHMWPE), carbide, nylon, aluminum, PVC, polypropylene, fluroelastomer aluminum, brass, carbide, nylon, plated steel, stainless steel, UHMWPE, zinc 1500 Watt minimum 220 - 240 V AC, 50/60 Hz, 1 phase, 10 A -35° to 71°C (-30° to 160°F) 4° to 46°C (40° to 115°F) * When pump is stored with non-freezing fluid. Damage to plastic parts may result if impact occurs in low temperature conditions. Changes in paint viscosity at very low or very high temperatures can affect sprayer performance. 313249B 23 Graco 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. [. . . ]