Hitachi RTX 900 - Manuals

Component Identification 6 311772G Pressure Relief Procedure To reduce risk of injury, follow this procedure whenever you see this symbol throughout this manual, Also, perform this procedure whenever you: • Stop spraying • Check or repair any part of this system • Install or clean spray nozzle 1. Tu...

Shroud Removal 311772G 7 Shroud Removal Disassembly 1. Relieve Pressure , page 6. 2. Unplug sprayer from outlet. 3. Loosen bottom hopper fitting by hand and pull hopper up and off from handle. 4. Loosen and remove 2 knobs (14) on sprayer handle (12). 5. Spread handle bars apart and pull up to remove...

Shroud Removal 8 311772G Reassembly 1. Angle left shroud half (5) into base and push down into place. Then replace right shroud half (7). 2. Replace and tighten second screw (30). 3. Swing access door down (RTX 1250) and tighten knob (42). 4. Tighten screw (70) into lower right corner of side access...

RotoFlex™ II Pump (RTX 900) 311772G 9 RotoFlex™ II Pump (RTX 900) Disassemble 1. Relieve Pressure , page 6. 2. Unplug sprayer from outlet. 3. Remove Shroud , page 7. 4. Loosen and remove screw (28) on hose bracket. 5. Remove hose bracket (25). 6. Slide pump fittings over and push through keyhole slo...

Compressor 12 311772G Compressor Use Compressor Repair Kit, 288612. Disassembly 1. Relieve Pressure, page 6. 2. Unplug sprayer from outlet. 3. Remove Shroud , page 7. 4. Remove RotoFlex ™ II Pump hose; page 9 or 10. 5. Unscrew and remove grounding screw (49) from compressor. 6. Use 9/16 in. socket a...

Valve Plate 16 311772G Valve Plate Use Valve Plate Repair Kit 288610. Disassembly 1. Relieve Pressure , page 6. 2. Unplug sprayer from outlet. 3. Remove Shroud , page 7. 4. Remove RotoFlex ™ II Pump hose; page 9 or 10. 5. Remove Compressor , page 12. 6. Remove muffler (110) from head (74) by pulling...

Motor 311772G 17 Motor Use Motor Repair Kit 288613. Disassembly 1. Relieve Pressure , page 6. 2. Unplug sprayer from outlet. 3. Remove Shroud , page 7. 4. Remove RotoFlex ™ II Pump hose; page 9 or 10. 5. Remove Compressor , page 12. 6. Remove compressor from sprayer body and place it in a vice. Tigh...

Cooling Tube 311772G 19 Cooling Tube Use Cooler Repair Kit 288614. Disassembly 1. Relieve Pressure, page 6. 2. Unplug sprayer from outlet. 3. Remove Shroud , page 7. 4. Remove RotoFlex ™ II Pump hose; page 9 or 10. 5. Remove Compressor , page 12. 6. Use 3/8 in. socket to remove screw (101) and washe...

Idler 311772G 21 Idler Use Idler Repair Kit 288611. Disassembly 1. Relieve Pressure , page 6. 2. Unplug sprayer from outlet. 3. Remove Shroud , page 7. 4. Remove RotoFlex ™ II Pump hose; page 9 or 10. 5. Remove Compressor , page 12. 6. Remove compressor belt, page 17. 7. Loosen set screw and remove ...

Selector Switch Knob 311772G 23 Selector Switch Knob Use Knob Repair Kit 288756. Disassembly 1. Turn selector switch knob clockwise as far as it will go. 2. Use wrench to remove nut from knob. 3. Pull knob straight off from sprayer. Assembly 1. Position new knob to point right (approximately 45° fro...

Regulator Valve 24 311772G Regulator Valve Use Regulator Repair Kit 288757. Disassembly 1. Remove Knob , page 23. 2. Remove Shroud , page 7. 3. Use wrench to push against fitting (86) and carefully pull cooling tube (79) out. 4. Use phillips screwdriver to remove two screws. 5. Remove old regulator ...

Troubleshooting 311772G 25 Troubleshooting Problem Cause Solution Sprayer won’t run Power switch not on Turn switch on. No power at wall outlet Check outlet by plugging in another appliance. If appliance does not work, try another outlet. Wrong size generator Use a 3500 watt or larger generator. Ref...

Wiring Diagram 311772G 27 Wiring Diagram Air Diagram 40 19 34 21 49 Switch Motor White Wire Black Wire Power Cord Green Wire (GND) ti8937a 49 Cylinder Air Valve Manifold on Compressor Compressor Air Outlet 38 84 15 34 ti8936a 55 59 Relief Valve 56 53 68 66 81 Gauge Regulator 69 RTX 1250 RTX 900 Cyli...

Parts 28 311772G Parts Models 254974 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 (RTX 900) 47 (RTX 900) 70 76 82 77 79 (RTX 900) (RTX 900) 83 (RTX 1250) 45 85 85 85

Technical Data 311772G 33 Technical Data * Measured while spraying at 1 m** Measured per ISO-3744 Main unit power requirements 120 Vac, 60 Hz, 15A, 1 phase Maximum fluid working pressure 70 psi, (4.9 bar) Maximum air working pressure 50 psi, (3.5 bar) Compressor specifications Universal motor therma...

Graco Standard Warranty 34 311772G Graco Standard 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 the original purchaser for use. With the exception of any sp...