Gebruiksaanwijzing /service van het product 311772H van de fabrikant Graco Inc.
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Graco Inc. P.O. Box 1441 Minneapolis, MN 55440-1441 Copyright 2006, Graco Inc. is r egistered to I. S. EN ISO 9001 For W ater- Based Materials Only Models: 254974 and 254975 70 psi (0.4 9 MP a, 4.9 bar ) Maximum Fluid W orking Pressure Related Manuals Important Safety Instructions Read all warnings and instruction s in this manual.
Warnings 2 311772G Wa r n i n g s The f ollowing are general w ar nings related to the setup , use, g rounding, maint enance and repair of this equipment. Additional, mo re specific warnings ma y be f ound thro ugh out the body of this manu al where applicab le.
Warnings 311772G 3 Electric Shoc k Hazard T o reduce the risk of electric shock: • B e sure spr a yer is adequat ely g rounded through e lectrical outlet, page 6. • Use only 3-wire, e xtension cords. • Mak e sure gr ound prongs are int act on spra yer and e xtension cords.
Warnings 4 311772G CA UTION W ater or material remaining in unit when tempe ratures ar e below fr eezing can damag e motor and/or dela y pump star tup . T o insure water and ma terial are completely dr ained out of un it: 1. Remove material lin e from spray er .
Component Identification 311772G 5 Component Identification Item Component Item Component A Handle N Burp Guard B T oolbo x P Mater ial/Air Hose C P ower Cord (120V , 25 ft) Q Accessories Bag D Side P.
Component Ide ntification 6 311772G Pressure Relief Pr ocedure T o reduce r isk of injury , f ollow this procedure whene v er y ou see this symbol throu ghout this manual, Also , perf or m this procedure whene ver you : • Stop spraying • Check or repair any par t of this system • Install or clean spra y nozzle 1.
Shroud Removal 311772G 7 Shr oud Remov al Disassembl y 1. Relie ve Pressure , page 6. 2. Unplug spr a yer from outlet. 3. Loosen bott om hopper fittin g by hand and pull hopper up and of f from handle . 4. Loosen and re mov e 2 knobs (14) on spra yer hand le (12).
Shroud Removal 8 311772G Reassembl y 1. Angle left shr oud half (5) into base a nd push down into place . Then replace right shroud half (7). 2. Replace and tig hten second scre w (30). 3. Swing access door do wn (R TX 1250) and tighten knob (42). 4. Tighten scre w (70) into lo wer right corner of side access plate.
RotoFlex™ II Pump (RTX 900) 311772G 9 RotoFle x™ II Pump (R TX 900) Disassemble 1. Relie ve Pressure , page 6. 2. Unplug spr a yer from outlet. 3. Remove Shr oud , page 7. 4. Loosen and re mov e screw (28) on hose brack et. 5. Remove hose brac ket (25).
RotoFlex™ II Pump (RTX 1250) 10 311772G RotoFle x™ II Pump (R TX 1250) Disassemble 1. Relie ve Pressure , page 6. 2. Unplug spr a yer from outlet. 3. Loosen knob ( 42) on side access panel. 4. Remove scre w (7 0) from side access panel. 5. Pull access pane l (13) out to release 3 fastening tabs and flip up to expose side access to pump.
RotoFlex™ II Pump (RTX 1250 ) 311772G 11 Reassemble 1. Bend hose (16) so colore d dots on hose fittings f ace each other . 2. Slide ne w pump hose (16) in from side access panel. Mo v e pump rollers b y hand until or flip pow er s witch to rotate r ollers until th ey are positioned c or- rectly with pump hose.
Compressor 12 311772G Compressor Use Compressor Repair Kit, 288612. Disassembl y 1. Relie ve Pressure, page 6. 2. Unplug spr a yer from outlet. 3. Remove Shr oud , page 7. 4. Remove RotoFle x ™ II Pump hose; page 9 or 10. 5. Unscre w and remo ve gr ounding scre w (49) from compressor .
Compressor 311772G 13 Reassembl y 1. Carefully positio n compressor back into spr a yer body . Mak e sure piston head f acing front of spra yer . 2. Replace and tig hten grou nding scre w (49). 3. Reattach air lines to com pressor . 4. Reattach 2 wires to compressor see Wiring Diagram , page 27.
Piston/Cylinder 14 311772G Piston/Cylinder Use Piston/Cylinder Rep air Kit 288609. Disassembl y 1. Relie ve Pressure , page 6. 2. Unplug spr a yer from outlet. 3. Remove Shr oud , page 7. 4. Remove RotoFle x ™ II Pump hose; page 9 or 10. 5. Remove Compress or , page 12.
Piston/Cylinder 311772G 15 Reassembl y 1. Replace piston (77) and cylinder (76) and use 7/32 in. allen wrench to tighten hex screw (87) into piston rod. 2. Replace v alve plate (75) wit h ribs facin g up tow ard head. 3. Replace th ree bolts (100) and use 1/2 in.
Valve Plate 16 311772G V alve Plate Use V alv e Plate Repair Kit 288610. Disassembl y 1. Relie ve Pressure , page 6. 2. Unplug spr a yer from outlet. 3. Remove Shr oud , page 7. 4. Remove RotoFle x ™ II Pump hose; page 9 or 10. 5. Remove Compress or , page 12.
Motor 311772G 17 Motor Use Motor Repai r Kit 288613. Disassembl y 1. Relie ve Pressure , page 6. 2. Unplug spr a yer from outlet. 3. Remove Shr oud , page 7. 4. Remove RotoFle x ™ II Pump hose; page 9 or 10. 5. Remove Compress or , page 12. 6. Remov e compressor from spra yer body an d place it in a vice.
Motor 18 311772G Reassembl y 1. Angle moto r pulley th rough compressor belt (84) and pull moto r (71) into position. 2. Tighten tw o mountin g bolts (105) on motor (7 1) until snug, the n back 1/ 8 of a turn.
Cooling Tube 311772G 19 Cooling T ube Use Cooler Repair Kit 288614. Disassembl y 1. Relie ve Pressure, page 6. 2. Unplug spr a yer from outlet. 3. Remove Shr oud , page 7. 4. Remove RotoFle x ™ II Pump hose; page 9 or 10. 5. Remove Compress or , page 12.
Cooling Tube 20 311772G Reassembl y 1. Inser t ne w cooling tube fitt ing and use 5/8 in. wrench to t ighten. 2. Inser t cooling tube ( 79) and push into ne w fitting (86). Mak e sure tube is fully seated. 3. Rotate cooling t ube around and insert free end into push-to-connect fitting.
Idler 311772G 21 Idler Use Idler Repair Kit 28861 1. Disassembl y 1. Relie ve Pressure , page 6. 2. Unplug spr a yer from outlet. 3. Remove Shr oud , page 7. 4. Remove RotoFle x ™ II Pump hose; page 9 or 10. 5. Remove Compress or , page 12. 6. Remov e compressor belt, page 17 .
Roller Pulley/Belt 22 311772G Roller Pulle y/Belt Use Roller Pulley Repair Kit 288616. Disassembl y 1. Relie ve Pressure , page 6. 2. Unplug spr a yer from outlet. 3. Remove Shr oud , page 7. 4. Remove RotoFle x ™ II Pump hose; page 9 or 10. 5. Remove Compress or , page 12.
Selector Switch Knob 311772G 23 Selector Switch Knob Use Knob Repair Kit 288756. Disassembl y 1. T ur n selec tor s witch knob clockwise as f ar as it will go . 2. Use wren ch to r emov e nut f rom knob . 3. Pull knob s traight off from sp ra yer . Assembl y 1.
Regulator Valve 24 311772G Regulator V alve Use Regulator Rep air Kit 28875 7. Disassembl y 1. Remove Knob , page 23. 2. Remove Shr oud , page 7. 3. Use wrench to push against fitt ing (86) and ca refully pull cooling tube ( 79) out. 4. Use phillips scre wdr iver to remo v e two screw s.
Troubleshooting 311772G 25 T roub leshooting Prob lem Cause Solution Spra yer won’t run P ower s witch not o n T ur n s witch on. No pow er at w all outlet Chec k outlet b y plugging in anot her appliance . If appliance does not work, try another outlet.
Troubleshooti ng 26 311772G Speed of application slo w or slower Material too thic k Thin material. Nozzle too small Change nozzles to a larger siz e. See Operat ion man ual 311768 . T oo much air being used. P ar tially close gun air v alve t o reduce air flow .
Wiring Diagram 311772G 27 Wiring Diagram Air Diagram 40 19 34 21 49 Switch Motor White Wire Black Wire P ower Cord Green Wire (GND) ti8937a 49 Cylinder Air V alve Manifold on Compressor Compressor Air.
Parts 28 311772G Pa r t s Models 25497 4 and 254975 23 42 43 2 7 25 42 10 11 40 31 30 14 12 63 5 62 32 15 ti8901c 14 8 62 47 37 22 46 29 71 28 (R TX 900) 47 (R TX 900) 70 76 82 77 79 (R TX 900) (R TX .
Parts 311772G 29 Pa r t s Models 254974 and 254975 6 19 61 3 4 16 38 21 26 29 29 35 50 59 51 54 15 29 ti8902b 52 27 34 36 49 • • • RTX 1250 Only 66 33 65 69 80 49 • 57 RT X 1250 Only 60 31 31 .
Parts 30 311772G Pa r t s Models 254974 ▲ Additional w arning labels are av ailable at no cost. Ref. P ar t Description Qty . 1 288386 PLA TE, front, R TX 1 2 15J60 0 T O OLBO X 1 3 15H069 SUPPOR T .
Parts 311772G 31 Pa r t s Models 254975 ▲ Additional w arning labels av ailab le at no cost. Ref P art Description Qty 1 288386 PLA TE , front, RTX 1 2 15J600 TOOLBO X 1 3 15H069 SUPPORT , hopper , .
Parts 32 311772G Pa r t s Compressor 288856 & 288651 110 100 74 75 71 108 109 106 105 77 73 87 83 84 87 101 102 72 79 ti8903a 86 76 117 Ref. P ar t Description Qty .
Technical Data 311772G 33 Te c h n i c a l D a t a * Measured while spra ying at 1 m ** Measured per ISO-37 44 Main unit pow er requireme nts 120 V ac , 60 Hz, 15A, 1 phase Maximum fluid wor king pressure 70 psi, (4.9 bar) Maximum air working pressu re 50 psi, (3.
Graco Standard Warranty 34 311772G Graco Standar d W arranty Graco warrants all equipment ref erenced in this document which is manufactured b y Graco and bearing its name to be free from de fe ct s i n material and workmanship on the date of sale the original purchaser for us e.
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