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INSTRUCTIONS-PARTS LIST 308–125
Rev. D
This manual contains important
Supersedes Rev. B
warnings and information.
First choice when
and PCN D
READ AND KEEP FOR REFERENCE.
quality counts.
INSTRUCTIONS
Roof Rigs
GM 1230
GASOLINE-POWERED AIRLESS SPRAYER
1200 psi (8.3 MPa, 83 bar) MAXIMUM
WORKING PRESSURE
Model 231–148
With one gun, Heavy Duty RAC IV
DripLess Tip Guard,
and 861 size tip,
90 foot (28 m) hose
Model 224–483, Series A
Without hose or gun
0394A
GRACO INC. P.O. BOX 1441 MINNEAPOL
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Table of Contents Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Field and Wiring Harness . . . . . . . . . . . . . . . . . . . 28 Fueling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Clamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Symbols Warning Symbol Caution Symbol WARNING CAUTION This symbol alerts you to the possibility of serious This symbol alerts you to the possibility of damage to injury or death if you do not follow the instructions. equipment if you do not follow the instructions. WARNING FIRE AND EXPLOSION HAZARD Improper grounding, poor ventilation, open flames or sparks can cause a hazardous condition and result in a fire or explosion and serious injury. If there is any static sparking or you feel an elect
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WARNING EQUIPMENT MISUSE HAZARD Equipment misuse can cause the equipment to rupture or malfunction and result in serious injury. INSTRUCTIONS This equipment is for professional use only. Read all instruction manuals, tags, and labels before operating the equipment. Use the equipment only for its intended purpose. If you are not sure, call your Graco distributor. Do not alter or modify this equipment. Use only genuine Graco parts. Check equipment daily. Repair or replace worn or damaged
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WARNING INJECTION HAZARD Spray from the gun, leaks or ruptured components can inject fluid into your body and cause extremely serious injury, including the need for amputation. Fluid splashed in the eyes or on the skin can also cause serious injury. Fluid injected into the skin may look like just a cut, but it is a serious injury. Get immediate medi- cal attention. Do not point the gun at anyone or at any part of the body. Do not put your hand or fingers over the spray tip. Do not stop o
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Notes
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Setup 0015 ENGINE OIL LIGHT ENGINE ON/OFF TRIGGER LOCK SWITCH SHOWN IN ENGAGED OR “SAFE” POSITION 0016 TRIGGER LOCK SHOWN IN DISENGAGED OR “OFF–SAFE” POSITION THROTTLE 40 ft (12 m) HOSE CHOKE SPRAY GUN FUEL SHUTOFF LEVER 40 ft (12 m) HOSE WAND HANDLE 50 ft. (15 m) AIR CLEANER MAIN HOSE SPARK PLUG CABLE GROUNDING CLAMP MUFFLER 0398 PRESSURE PRESSURE CONTROL CONTROL KNOB PRESSURE CONTROL ON/OFF SWITCH PRESSURE RELIEF VALVE shown in closed position DISPLACEMENT PUMP QUICK DISCONNECT ELBOW SIPHO
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Setup General Information Pressure Relief Procedure NOTE: Reference numbers and letters in parentheses in the text refer to the callouts in the figures and the parts drawing. WARNING INJECTION HAZARD WARNING Fluid under high pressure can be in- jected through the skin and cause seri- FIRE AND EXPLOSION HAZARD ous injury. To reduce the risk of an injury Before operating the pump, ground the from injection, splashing fluid, or moving parts, fol- system as explained below. Also read low the Pressur
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Setup 1. Read and follow the warnings on pages 3–3 6. Fill the gas tank. See FUELING, below. before setting up or operating this sprayer. 7. Flush the pump to remove the protective light- 2. Install the hoses and gun. weight oil. See FLUSHING GUIDELINES on page 12. 3. Clamp the siphon hose to the pump. Be sure the gasket is in the quick disconnect elbow; air leaks will 8. AGITATE OR MIX THE MATERIAL THOROUGH- prevent priming. LY! Make sure the heavier material on the bottom of 4. Check the engin
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Start Up Before You Start The Sprayer 3. Turn OFF the pressure control switch. 1 See FLUSHING GUIDELINES, page 12, to deter- 4. To start the engine: mine if the unit should be flushed. a. Turn the pressure adjusting knob all the way 2 Be sure the gas tank is full. counterclockwise to the lowest pressure setting. 3 Check the engine oil level. b. Slide the metal throttle lever away from the fuel NOTE: The engine stops automatically, or will not start, tank to the maximum position (fully left). if
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Start Up 6. To start the pump: WARNING a. Place a container under the pressure drain valve and open the valve. To reduce the risk of serious injury from fluid injec- tion, never operate the spray gun with the tip guard b. Reduce the engine speed by moving the metal removed. throttle lever away from the fuel tank about half way to the left. 8. Install the tip guard and spray tip. See page 13. c. Turn the pressure control knob to minimum. d. Turn ON the pressure control switch. CAUTION e. Turn the
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Flushing Guidelines 2. Put the siphon tube in a grounded metal pail of water WARNING or compatible solvent. To reduce the risk of serious injury, including fluid 3. Start the sprayer. Trigger the gun into the coating injection, always follow the Pressure Relief Proce- container just until water or solvent comes from the dure Warning on page 8 before checking, adjust- nozzle. Release the trigger. ing, cleaning, or shutting down the sprayer. 4. Move the gun to the grounded flushing container. Trig
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Spray Tip and Tip Guard HOUSING WARNING RETAINING NUT To reduce the risk of fluid injection or splashing in the eyes or on the skin, completely relieve the fluid pressure before installing, cleaning, or changing tips. See the Pressure Relief Procedure on page 0464 8. Fig. 7 Installation RETAINING NUT HOUSING 1. Insert the housing through the back of the retaining SEAL nut and pull it forward. See Fig. 7. 2. Install the metal seal in the housing, flat side first. 0465 Fig. 8 See Fig. 8. 3. Insta
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Spray Techniques HOLD THE GUN PERPENDICULAR TO AND 24” (610 MM) ABOVE THE SURFACE MOVE HORIZONTALLY AT A STEADY RATE OVERLAP EACH STROKE BY 50% 0551 Fig. 12 Start the spray stroke 24” (610 mm) above the target sur- 1 Type of Coating Fibered? Recommended face and pull the trigger as the gun is moving. Then, while 2 Tip Size the gun is still moving, and as you approach the other Primers N/A 0.031 or larger edge, release the trigger. This method avoids excess material build-up at the end of each s
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Maintenance DAILY: Check the engine oil level and fill as necessary. WARNING To reduce the risk of serious injury, always follow DAILY: Check and fill the gas tank. the Pressure Relief Procedure on page 8 before checking, adjusting, cleaning, or shutting down the sprayer. AFTER THE FIRST 20 HOURS OF OPERATION AND EACH 100 HOURS THEREAFTER: Change the oil. CAUTION For detailed engine maintenance and specifications, refer to the HONDA engine manual. WEEKLY: Remove the air filter cover and clean th
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Troubleshooting Check everything in the guide before disassembling WARNING the sprayer. Relieve the pressure before disassembling the spray- To reduce the risk of serious injury whenever you er. are instructed to relieve pressure, always follow the Pressure Relief Procedure on page 8. PROBLEM CAUSE SOLUTION Engine/sprayer won’t start Engine switch not on Turn on engine switch. Out of gas Refill gas tank. Engine oil level low Try starting engine. If light on rear of engine glows, replenish oil. S
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PROBLEM CAUSE SOLUTION Engine starts but dies Oil level drops below oil sensor Add oil. Displacement pump output low Siphon hose strainer is clogged Clean strainer. on upstroke Piston ball check not seating Service piston ball check. See page 19. Piston packings worn or damaged Replace packings. See page 19. Sleeve o–ring in displacement pump Replace o–ring gasket. See page 19. worn or damaged Displacement pump output low Siphon hose strainer is clogged Clean strainer. on downstroke or both stro
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Removing and Installing a Displacement Pump Removal 7. Remove the two mounting screws while supporting the weight of the pump with your free hand. WARNING Installation To reduce the risk of serious injury, always follow 1. Push the pin just barely into the connecting link, but the Pressure Relief Procedure on page 8 before not into the mating hole of the displacement pump. repairing the sprayer. 2. Pull the displacement rod out of the pump 2 to 3 in. (50–75 mm). 1. Flush the sprayer. Remove the
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Removing and Installing A Displacement Pump 4. Check the back of the bearing housing to be sure the PRESSURE CONTROL parts are installed properly. 5. Lift the pump to align the mounting holes and install the mounting screws. IMPORTANT – torque the screws to 20 ft-lb (27 N.m). See Fig. 13. TAB 6. Plug in the power cord so the notch in the collar and the tab in the socket align. Screw on the collar. See Fig. 14. NOTCH COLLAR 0408 Fig. 14 Displacement Pump 423 WARNING 416 401 To reduce the risk of
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Displacement Pump Repair Kit 7. From the top of the pump housing (417), install the male gland (403). With the lips of the v–packings fac- 1A Packing Repair Kit, Part No. 224–523, is available. ing down, alternately install the leather packings Use all the parts in the kit for the best results. (418*), and poly packings (402*). Install the female gland (419*). 2 Parts included in the kit are marked with an asterisk in the text and drawings. For example, 408*. 8. Screw in the packing nut (420) lo
