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Hersteller: Graco Inc. Dateigröße: 1013.65 kb Dateiname: Unterrichtssprache:

Check them carefully for damage or wear, replacing parts as needed. For best results replace the original parts with new parts in repair kits. Prior to assembly, lubricate all seals and o-rings with PARKER-O-LUBE or an equivalent lubricant. 1. Connect needle (8) and stop nut (2) to yoke (1). 2. Secure yoke (1) in soft jawed vise. Lock stop nut (2) against yoke. ti4043a 3. Insert needle (8) into packing nut (5). 4. Push three seal needles (6) in packing nut (5) using soft rod or dowel. Orient as shown below ti4045a 5. Install o-ring (4) on groove of packing nut (5). 6. Install guide (22) on needle (8). 7. Rewind spiral o-ring backup (21) on guide (22). 8. Install two o-rings (23) on guide (22). 9. Insert cartridge assembly in gun body (17) from rear of gun. 10. Screw packing nut (5) into gun body (17). 11. Insert valve (20) through front of gun on needle (8). 12. Tighten nut (19) on needle (8). ti4051a 13. Adjust screw (3) to tighten packings. 14. Install trigger (18). Align yoke (1) in gun body (17). 15. Press trigger pin (12) into gun body. 16. Secure trigger pins (12) using screws (11) and lock washers (28). 17. Install spring (13) and spring retainer (15) into gun body (17). 18. Adjust spring retainer to allow approximately 1/32 in. of free play on trigger. 19. Tighten stop nut (14). 20. Install o-ring (10) on adapter (9). 21. With trigger retracted screw adapter (9) on gun body (17). 22. While holding adapter (9) stationary, screw collar (16) and nozzle into adapter. Do not over tighten collar. 23. Reconnect flow gun to material supply line. 24. Turn on material supply line to gun. 25. Return flow gun to normal operating condition. ti4050a 10 309739 Service Model 12006 Disassembly 1. With trigger (20) depressed, remove collar (17) securing nozzle (18) to gun. 2. Remove nozzle (18), holding adapter (10) firmly to prevent it from turning. 3. Remove gasket (9). Clean and inspect for damage. 4. Remove adapter (10) from gun body. 5. Remove both screws (12) and lock washers (25) on one side of trigger (20) and push both trigger pins (13) out of body. 6. Loosen lock nut (15) at rear of gun. 7. Unthread spring retainer (16) and remove spring (14). 8. Loosen and remove adjustment screw (6) on packing nut (3) and pull needle assembly from rear of gun. Inspect for damage, replace if needed. 9. Remove packing assembly from gun. 10. Unthread packing nut (3) from body. 11. Remove adjustment screw (6) and o-ring (5) and seals (4). Reassembly Clean all parts thoroughly before reassembling. Check them carefully for damage or wear. Replace parts as needed. For best results replace the original parts with new parts in repair kits. Prior to assembly, lubricate all seals and o-rings with PARKER-O-LUBE or an equivalent lubricant. 1. Replace o-ring (5) and seals (4) in packing nut (6). Nut Needle Yoke Packing Nut Adjusting Screw Packing Support Seal ti4057a O-Ring 2. Thread packing nut (3) into gun body. 3. Install packing assembly through rear of gun. 4. Install needle assembly through rear of gun. 5. Install spring (14) and spring retainer (16) into gun body. Adjust spring retainer to allow approximately 1/32 in. of free play on trigger. 6. Tighten lock nut (15). 7. Install trigger (20) and insert trigger pins (13) in gun body. 8. Secure trigger pins (13) using screws (12) and lock washers (25). 9. Replace o-ring (11). Lubricate with petroleum jelly to aid in reassembly. 10. With trigger (20) retracted, screw adapter (10) into gun body. 11. Insert gasket (9) in collar (17). 12. While holding adapter stationary, screw collar (17) and nozzle (18) into adapter. Do not overtighten collar. 13. Reconnect flow gun to material supply line. 14. Turn on material supply line. 15. Return flow gun to normal operating condition. 309739 11 Parts 12 309739 Parts Models 12004 & 12004X 13 1 2 5 3 6 4 7 11 23 12 16 9 10 8 15 14 17 18 21 19 20 Item Part No. Description Qty 1 C27052 YOKE 1 2 100284 NUT, hex (model 12004) 1 C19284 NUT, hex (model 12004-X) 1 3 C27061 SCREW, adjustment 1 4 106555 PACKING, o-ring 1 5 C27058 PACKING, nut 1 6 C27060 SEAL, needle 3 7 C27053 SUPPORT, packing 1 8 C27038 NEEDLE 1 9 C27063 ADAPTER, ball seat 1 10 C20102 PACKING, o-ring 1 11 C19950 SCREW, cap, sch (model 12004) 2 (model 12004-X) 3 12 15X116 PIN, trigger (model 12004) 2 (model 12004-X) 3 13 C00020 SPRING 1 14 C27036 NUT, lock 1 15 C27037 RETAINER, spring 1 16 C00004 COLLAR 1 17 C27049 BODY, flow gun 1 18 C27051 TRIGGER, hot melt 1 19 C34009 TRIGGER, lock 1 20 108483 SCREW, shoulder, sch 1 21 C20565 WASHER, spring 1 22 070269 SEALANT, anaerobic 23 C19208 LOCKWASHER (model 12004) 2 (model 12004-X) 3 24 101369 WRENCH, hex key, 3/32 in. (not shown) 1 Item Part No. Description Qty Parts 309739 13 Model 12005 4 6 5 3 2 1 13 8 22 23 21 19 20 18 12 28 11 17 15 16 14 9 10 25 24 27 Item Part No. Description Qty 1 C27052 YOKE 1 2 C19284 NUT, hex 1 3 C27061 SCREW, adjustment 1 4 106555 PACKING, o-ring 1 5 C27058 PACKING, nut 1 6 C27060 SEAL, needle 3 8 C27071 NEEDLE 1 ...

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