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Graco 288400 manual

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Table of contents for the manual

  • Page 1

    311327E ENG Repair-Parts Predator ™ Proportioner For spraying polyurethane foam and polyurea coatings. Not for use in explosive atmospheres. Model 288400 1600 psi (11.0 MPa,110 bar) Maximum Working Pressure 230 V, 60 Hz; 30 Amps; 5000 Total Heater Watts Important Safety Instructions Read all warnings and instructions in this manual. Save these in[...]

  • Page 2

    Contents 2 311327E Contents Contents .................................. 2 R e l a t e dM a n u a l s ........................... 2 W a r n i n g s ................................. 3 Before Beginning Repair .................... 5 Flushing .................................. 5 Pressure Relief Procedure ................... 5 Troubleshooting ..........[...]

  • Page 3

    Warnings 311327E 3 Warnings The following general warnings are for the setup, use, grounding, maintenance, and repair of this equipment. Addi- tional, more specific warnings may be found throughout the body of this manual where applicable. Symbols appear- ing in the body of the manual refer to these general warnings. When these symbols appear throu[...]

  • Page 4

    Warnings 4 311327E FIRE AND EXPLOSION HAZARD Flammable fumes, such as solvent and paint fumes, in work area can ignite or explode. To help prevent fire and explosion: • Use equipment only in well ventilated area. • Eliminate all ignition sources; such as pilot lights, cigarettes, portable electric lamps, and plastic drop cloths (potential stati[...]

  • Page 5

    Before Beginning Repair 311327E 5 Before Beginning Repair Flushing • Flush out fluid with new fluid, or flush out old fluid with a compatible solvent before introducing new fluid. • Use lowest possible pressure when flushing. • To flush entire system, circulate through gun fluid manifold (with manifold removed from gun). • Always leave some[...]

  • Page 6

    Troubleshooting 6 311327E Troubleshooting Primary Heating System Before performing any troubleshooting procedures: 1. Relieve pressure, page 5. 2. Turn OFF red main power disconnect. 3. Allow equipment to cool. (For complete Electrical Schematic , see page 27) Problems Try the recommended solutions in the order given for each problem to avoid unnec[...]

  • Page 7

    Troubleshooting 311327E 7 3. Remove the thermostat housing by removing the two mounting screws and carefully pulling the housing away from the heater. 4. Push in the red reset button on the switch. 5. If the Thermal Limit Switch does not feel as though it reset, then disconnect one lead from the Thermal Limit Switch and read continuity across the s[...]

  • Page 8

    Troubleshooting 8 311327E Proportionting System Problems Try the recommended solutions in the order given for each problem to avoid unnecessary repairs. Also, determine that all circuit breakers, switches, and controls are properly set and wiring is correct before assuming there is a problem. Solutions 1. Leaking Ball Check Valve - Determine which [...]

  • Page 9

    Troubleshooting 311327E 9 and an off-ratio condition will result. This malfunction will appear almost identical to cavitation, but somewhat less severe. 4. Pilot Valves - Check each valve for proper operation. If either valve is defective or damaged, replace both valves. 5. Damaged Piston Packing - Check piston packing set for mars or scoring. Repl[...]

  • Page 10

    Troubleshooting 10 311327E c. Adjust the tap setting of the hose heat transformer to match the next shortest length of heated hose (see Hose Heat Power Pack on page 24). d. Unplug the next set of Power-Lock connectors and plug the hose jumper plug into the last “upstream” segment of hose. e. Restore electrical power, switch ON the hose heat cir[...]

  • Page 11

    Repair 311327E 11 Repair Proportioning Pumps When the proportioning pumps are functioning properly, it is not unusual for a trace amount of resin or isocyanate chemical to seep past the pump packing onto the pump shaft. Maintain proper packing adjustment to minimize seepage. Routinely inspect the shaft and wipe away any residue when the unit is tur[...]

  • Page 12

    Repair 12 311327E 8. Disconnect tubes (N) from Iso Lube Pump on A side only. 9. Push retaining wire clip (R) up. Push retaining pin (U) out. 10. Loosen locknut (S) by hitting firmly with a non-sparking hammer. 11. Unscrew pump out of pump mounting plate (T). Pump Installation 1. Ensure locknut (124) is screwed on pump with flat side up. Grease pump[...]

  • Page 13

    Repair 311327E 13 3. Remove four bolts (117) to remove entire air motor assembly. 4. Remove lock nut (118) from piston rod (138) and remove pump yoke (122). 5. Remove four lock nuts (118), washers (116), and tie-rod bolts (117). 6. Lift top plate (115) and remove from air cylinder (114). 7. Push piston rod assembly out of air cylinder and replace p[...]

  • Page 14

    Repair 14 311327E Remove and clean filter screens as follows: 1. Follow Pressure Relief Procedure , page 5. 2. Place a rag beneath filter base to catch drain-off of chemical when removing screen plug. 3. Loosen screen plug just enough to allow material to drain out onto rag. 4. Unthread screen plug and remove it. 5. Pull screen out of strainer. Cle[...]

  • Page 15

    Accessories 311327E 15 Accessories 260652 Predator Material Supply Kit Pumps, hoses, and mounting hardware to supply fluids to unit. 246483 Air Supply Kit Hoses and fittings to supply air to feed pumps, agitator, and gun air hose. Included in feed pump kits; see manual 309827. 255057 Air Motor Seal Kit Includes piston rod seal and bearing. Also inc[...]

  • Page 16

    Parts 16 311327E Parts TI9515a 14 1 9 12 11 13 10 15 16 5 18 19 20 2 35 16 4 25 22 3 36 19 31 33 34 16 26 27 28 29 30 17 7 8 23 6 24 (detail of frame)[...]

  • Page 17

    Parts 311327E 17 Parts - Main Assembly ❄ Not shown. Ref. Part Description Qty. 1 256508 PUMP, air motor, kit 1 2 297647 CART, mobile 1 3 297519 CONSOLE, electrical 1 4 297528 HEATER, primary 1 5 297652 POWER SUPPLY, 70 V 1 6 297485 THERMOSTAT 1 7 15J759 HOSE, pump, 14.5 in. 1 8 15J760 HOSE, pump, iso 1 9 246995 BOTTLE, assy 1 10 803088 FITTING, t[...]

  • Page 18

    Parts 18 311327E Electrical Console AC AMPERES 5 0 10 15 50 10 0 20 30 40 100 90 80 60 70 OFF OFF OFF OFF HEA TER HOSE POT REAR OF LOAD 1 3 CONTROL AC POWER INPUT 4 79 74 83 86 64 63, 76, 77 65 75 61, 62 82 68 73 60 84 87, 81 69 67 90, 91, 92[...]

  • Page 19

    Parts 311327E 19 Parts - Electrical Console ❄ Not shown. ▲ Replacement Danger and Warning labels, tags, and cards are available at no cost. Ref. Part Description Qty. 60 297621 SCREW, machine, button head 8 61 100518 SCREW, mach, pnhd 2 62 103181 WASHER, lock ext 6 63 297623 LENS, amber 2 64 297624 SCREW, machine, round head 4 65 297622 CONTROL[...]

  • Page 20

    Parts 20 311327E Air Motor Assembly TI9513b 170 128 129 127 130 117 116 115 140 114 139 138 136 135 113 112 155 167 164, 166 163 126 118 165 132 133 121 122 141 137 160 111 116 113 110 116 117 151 146 170 153 154 143 128 142 171 113 156 149, 150 149, 150 147 148 145 144 118 See page 21 for parts. 152 152 127 128 158 159 157 162 161 168 172 177[...]

  • Page 21

    Parts 311327E 21 Air Motor Assembly TI9511a TI9512a 120 131 123 134 124 119 173 125 176h 176g, 176k 174 175 176a 176c 176b 176m 176d 176e 176f Ref. Part Description Qty. 110 15J138 PLATE, base, pump 1 111 15J131 PLATE, side 2 112 15J587 PLATE, cylinder, air, bottom 1 113 C19837 SCREW, cap, socket hd 10 114 297411 CYLINDER, air 1 115 15J586 PLATE, c[...]

  • Page 22

    Parts 22 311327E Primary Heater Assembly 186 193 208 184 200 210 180 206 192 194 203 195 198 191 203 195 190 188 202 201 197 189 181 207 199 183 204 205 209 182 196 185[...]

  • Page 23

    Parts 311327E 23 Primary Heater Assembly Ref. Part Description Qty. 180 297529 STOP 1 181 297530 ELEMENT, heating 4 182 295731 NUT, wire 2 183 297245 FITTING, elbow, 90, st,1/4 x 1/4 1 184 297586 FITTING, straight, nipple 1 185 297531 SPRING, leaf 1 186 295662 PLUG, pipe 42 187 295732 SCREW, cap, sh, 8-32 x 1/4lg 2 188 596936 SCREW, cap socket hd 1[...]

  • Page 24

    Parts 24 311327E Hose Heat Power Pack  ",+  7(4               '2. 249 236 239 232 224 237 222 234 230 221 233 221 222 223 248 242 225 226 231 229 230 247 244 243 246 238 226 227 245 220 222 228[...]

  • Page 25

    Parts 311327E 25 Hose Heat Power Pack (Power Supply) ▲ Replacement Danger and Warning labels, tags, and card are available at no cost. ❄ Not shown. Ref. Part Description Qty. 220 295731 NUT, wire 3 221 295732 SCREW, cap, sh, 8-32 x 1/4lg 4 222 100015 NUT, hex mscr 8 223 100086 WASHER, plain 2 224 100284 NUT, hex mscr 2 225 100518 SCREW, mach, p[...]

  • Page 26

    Parts 26 311327E Pneumatic Schematic            F IG . 2: Pneumatic Schematic[...]

  • Page 27

    Parts 311327E 27 Electrical Schematic                                ?[...]

  • Page 28

    Parts 28 311327E[...]

  • Page 29

    Technical Data 311327E 29 Technical Data Maximum working pressure ....................... 1600 psi (11.0 MPa, 110 bar) Maximum fluid temperature ....................... 190°F (88°C) Maximum output (may vary due to operating conditions) ........... 1 6l b / m i n( 7 . 2 5k g / m i n ) Viscosity range ................................. 250-1500 cent[...]

  • Page 30

    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. This manual contains English. MM 311327 Graco Headquarters: Minneapolis International Offices: Belgium, China, Japan, Korea GRACO INC. P.O. BOX 1441[...]