Operation/Repair/Parts MP 400/300 Mustang 4800 Airless Paint Sprayer 332882A EN For portable application of architectural paints and coatings. For professional use only. Not approved for use in European explosive atmosphere locations. 3000 psi (20.7 MPa, 207 bar) Maximum Working Pressure Important Safety Instructions Read all warnings and instructions in this manual and in gun manual. Save all instructions. See page 3 for model information.
Contents Contents Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Component Identification . . . . . . . . . . . . . . . . . . . . 8 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Pails . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Pressure Relief Procedure . . . . . . . . . .
Models Models Model MP300 MP400 Mustang 4800 332882A Model No.
Warnings Warnings The following warnings are for the setup, use, grounding, maintenance, and repair of this equipment. The exclamation point symbol alerts you to a general warning and the hazard symbols refer to procedure-specific risks. When these symbols appear in the body of this manual or warning labels, refer back to these Warnings. Product-specific hazard symbols and warnings not covered in this section may appear throughout the body of this manual where applicable.
Warnings WARNING WARNING 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: • Do not spray flammable or combustible materials near an open flame or sources of ignition such as cigarettes, motors, and electrical equipment. • Paint or solvent flowing through the equipment is able to result in static electricity. Static electricity creates a risk of fire or explosion in the presence of paint or solvent fumes.
Warnings WARNING WARNING SKIN INJECTION HAZARD High-pressure spray is able to inject toxins into the body and cause serious bodily injury. In the event that injection occurs, get immediate surgical treatment. • Do not aim the gun at, or spray any person or animal. • Keep hands and other body parts away from the discharge. For example, do not try to stop leaks with any part of the body. • Always use the nozzle tip guard. Do not spray without nozzle tip guard in place. • Use Airlessco nozzle tips.
Warnings WARNING WARNING MOVING PARTS HAZARD Moving parts can pinch, cut or amputate fingers and other body parts. • Keep clear of moving parts. • Do not operate equipment with protective guards or covers removed. • Pressurized equipment can start without warning. Before checking, moving, or servicing equipment, follow the Pressure Relief Procedure, page 10 and disconnect all power sources.
Component Identification Component Identification E D B ti22321a C 8 A A Power switch Turns sprayer ON and OFF B Pressure Control Knob Adjusts pressure. Turn clockwise to increase pressure and counterclockwise to decrease pressure. C Prime Valve Primes pump. D Prime Valve Open Position Valve is in open position when handle is in the vertical position. E Prime Valve Closed Position Valve is in closed position when handle is in the horizontal position.
Operation Operation Grounding The equipment must be grounded to reduce the risk of static sparking and electric shock. Electric or static sparking can cause fumes to ignite or explode. Improper grounding can cause electric shock. Grounding provides an escape wire for the electric current. TI C Do not modify the plug provided; if it does not fit the outlet, have the proper outlet installed by a qualified electrician.
Operation Pails Pressure Relief Procedure Solvent and oil/based fluids: follow local code. Use only conductive metal pails, placed on a grounded surface such as concrete. Do not place pail on a nonconductive surface such as paper or cardboard which interrupts grounding continuity. Grounding a metal pail: connect a ground wire to the pail by clamping one end to pail and other end to a true earth ground such as a water pipe. Follow the Pressure Relief Procedure whenever you see this symbol.
Operation Setup Oil- or Water-based Materials To reduce the risk of static sparking, fire or explosion which can result in serious bodily injury and property damage. Always ground the sprayer and system components and the object being sprayed. • Ensure proper electrical service and amperage and that the outlet is properly grounded. Connect the hose and gun • When changing from water-based material to oil based material, flush with soapy water and then mineral spirits.
Operation 13. Whenever shutting down the sprayer, follow Pressure Relief Procedure, page 10. 4. Turn Pressure Control Knob to low. NOTICE To prevent damage and freezing during storage, never leave water in the fluid pump Startup ti22322a 5. Open the prime valve to the open (priming) position. This will allow an easy start. Closed (Pressure) Open (Priming) ti17403a 1. Prepare the material according to the material manufacturer’s recommendations. 2. Place the suction tube into the material container.
Operation Clearing Clogs Shutdown 1. Relieve Pressure, page 10. 2. Clean the tip and gun as recommended in the separate Gun Manual supplied with the gun. 1. Release trigger. Engage trigger lock. Rotate Spray Tip. Disengage trigger lock. Trigger gun at waste area to clear clog. 3. If spraying water-based material or a material that could harden in the sprayer overnight, flush the sprayer after use. See Flushing, page 11. Storage Short Term ti10166a ti22227a ti10167a 2. Engage trigger lock.
Maintenance Maintenance Daily Maintenance 1. Keep the displacement pump packing nut/wet cup lubricated with Throat Seal Oil (TSO) or Packing Seal Fluid at all times. The oil or fluid help protect the rod and packings. 2. Inspect the packing nut daily. If seepage of paint into the packing nut and/or movement of the piston upward is found (while not spraying), the packing nut should be tightened just enough to stop leakage. Overtightening will damage the packings and reduce the packing life.
Maintenance Fluid Pump Reinstall 1. Loosen the packing nut and ensure that the piston rod (10) is in its upper position in the fluid pump body, snap cap onto packing nut and slip the sleeve (3) and the retaining ring (4) over the piston rod (10). 14 2. Push the piston rod (10) up into the connecting rod (2) and align the holes. Insert the connecting rod pin (1) through the connecting rod (2) and piston.
Maintenance Servicing the Inlet Valve - Hi-Boy 1. Relieve Pressure, page 10. Disconnect power from unit. 2. Un-thread and remove suction nut from the fluid pump body (8). 3. Remove suction seat assembly (12). 4. Clean all parts and inspect them for wear or damage, replacing parts as needed. 5. Clean inside of the fluid pump body (8). 6. Reassemble lower suction valve assembly by placing the suction seat assembly (12) in the suction nut (13) and screw onto fluid pump body (8). 2.
Maintenance 8. Take three spring washers (16) and slide over the top of the piston (14) in the following order: • • • First spring - curve facing up Second spring - curve facing down Third spring - curve facing up 9. Take the upper male gland (17) and place it rounded side up. 10. Take three upper polyethylene packings (18) and two leather packings (22) and assemble with inverted side down, on to the male gland (17) in the following order: • • • • • 18. Reinstall Fluid Pump, page 15.
Maintenance Gear and Pump Assembly Servicing Gear box Assembly 1. Remove fluid pump. See Fluid Pump Disconnect, page 14. 7. Clean mating surfaces of cover and box thoroughly. Apply Loctite® 518 on half the bottom surface of end bell. 8. Reassemble in reverse order. 1 2. Remove frame from the gearbox by loosening the four mounting screws. 4. Lay unit on its back and disassemble gearbox. 13 14 15 8 2 5.
Maintenance Replacement of Electrical Components B To avoid electric shock, always unplug the electrical cord before servicing the machine. NOTE: Anytime the pressure control assembly, sensor, or both are replaced, perform the calibrations. Pressure Control Assembly (Electrical Control Board) 1. Unplug machine’s power cord. 2. Remove two screws from terminal box. 3. Disconnect all leads from pressure control assembly. 4. Reassemble in reverse order.
Troubleshooting Troubleshooting Problem Unit doesn’t prime Cause Solution Air leak due to loose suction nut Tighten suction nut. Air leak due to worn o-rings For Hi-Boy: Replace o-ring (108526) on suction seat and o-ring (867370) below suction seat. For Stand: Replace o-ring (120777) on suction seat and o-ring (121370) below suction seat.
Troubleshooting Problem Machine does not start Cause Solution Control Settings Make sure machine is plugged into the wall. Verify the on-off switch is in the ON position and the pressure control knob is turned all the way to the right (clockwise for maximum pressure). Pressure Control Assembly (Board) If the power indicating light is still out after checking the control settings and power source, replace the pressure control assembly. Motor Remove the motor brush covers and turn the machine ON.
Parts Parts Manifold Filter (868014) Model 868057 1 Ref. 3 4 6 7 44 9 Description Qty. 1 867145 COVER 1 2 301356 SPRING 1 3 867377 O-RING 1 4 867214 FILTER 60 MESH 1 5 867647 SUPPORT 1 6 867077 BASE 1 7 867420 PLUG 1 9 867309 NIPPLE 3/8” NPT x 1/4” NPT 1 10 557391 PLUG 1/4” NPT 1 44‡ FITTING 1 46‡ GAUGE, pressure 1 ‡ Not included in Manifold Kit 868014, See page 27. 2 5 Part 10 ti22327a 46 Inlet Valve Ref.
Parts Stand Frame Parts Diagram 2 63 53 1 42 ti22328a Ref. Part Description 1 2 42 FRAME, CARRY FASTENER,THREAD,EXTERNAL RUBBER BOOT 331101 16F551 331048 332882A Qty. 1 4 2 Ref. Part 53 63 Description HSE1450 HOSE CPLD 1/4” x 50 ft. (MP400, Mustang 4800) 245449 HOSE, 1/4” x 25 ft., (MP300) 289316 GUN, 500,2 FINGER,ASM Qty.
Parts Hi-Boy Parts Diagram 2 3 1 78 77 4 5 7 6 ti17483a Ref.Part Description 2 3 4 5 6 FRAME FASTENER,THREAD, EXTERNAL SPACER WHEEL,10” X 3.5” COLLAR, SCREW, SET 24 331273 16F551 866356 867736 143029 Qty. 1 4 2 2 2 Ref.Part Description 7 331048 RUBBER BOOT 77 HSE1450 HOSE CPLD, 1/4” X 50’ 78 289316 GUN, 500, 2 FINGER,ASM Qty.
Parts Control Parts Diagram 25 30 26 28 31 27 32 120V Models 220/230V Models 34 37 33 29 38 36 35 34 39 28 ti17482ati22429a Ref. Part Description 25 26 27 28 29 30 31 32 33 34 867243 868000 868013 331342 116969 331185 301083 301150 15V909 868018 868019 35 36 37 868007 868008 868009 38 39 868010 868004 GASKET, seal BOX, terminal, weldment SEAL, rubber SCREW, 10-24 X 0.
Parts Motor and Drive Parts Diagram 35a 8 9 6 7 5 52 4 3 35e 35b 35c 25 35d ti17481a 26 66 57 4 43 5 12 69 58 11 56 33 24 51 10 30 30 15 44 22 13 20 45 44 28 16 17 46 18 Stand Model 41 159 160 157 158 23 19 40 See page 29 ti22329a 26 332882A
Parts Drive Parts Ref. Part Description 3 MOTOR 1HP, 120V (120V models) 0.5 HP, 220V (220V-240V models) FAN (not shown) FAN COVER (not shown) BOLT (not shown) SCREW, SHOULDER SCREW, CAP BEARING,BALL GEAR,CRANK .21 ASSY (120V models; MP300) .26 ASSY (MP400 220V-240V models) YOKE,CROSSHEAD ASSY PIN,CROSS PIN .375 SPRING,RET. SPRING SLEEVE COVER - GUARD PUMP,PAINT,ASSY RETAINER,PUMP BALL .500 PACKING,O-RING SCREW,5/16-18 X 3.75 HX HD SPACER 2.
Parts Packing Replacement Ref. Description Qty.
Parts Gearbox Sleeve Bearing Replacement 1 2 3 Ref. Part Description Qty. 1 2 3 331061 SLEEVE BEARING 331103 WASHER 331197 SCREW 1 2 2 NOTE: When replacing item (1), cover outside of sleeve with 6 drops of Loctite 246 prior to inserting into cover assembly. ti16059a Suction Assemblies Stand Chassis Hi-Boy Chassis (331284) 2 3 1 1 4 4 6 2 5 ti16061a 5 ti22330a Ref.
Parts Electrical System 120V Power Plug On/Off Switch Black White To Motor 1 Green (Ground) Red Board Kit 868018 7 Pressure Control ti22336a 230V Power Plug 3 On/Off Switch Brown Black 1 Red Blue To Motor Green (Ground) White 7 Board Kit 868019 ti22337a Pressure Control Ref. 1 30 Part Description POWER CORD 331163 120V models 867427 Models 868056, 868060 301101 Models 868054, 868055, 868057, 868058 Qty. 1 1 1 Ref.
Technical Data Technical Data MP400/300, Mustang 4800 US Metric Sprayer Power Requirements 120V AC, 60 hz, 10.5A, 1 phase 230V AC, 50/60 hz, 5A, 1 phase (MP400) 230V AC, 50/60 hz, 4A, 1 phase (MP300) Generator required 3000w minimum Maximum working pressure 3000 psi 20.7 MPa, 207 bar 120V Models/MP300 741 195 MP400 220V-240V models 599 158 Cycles per gallon (liter)* Maximum delivery MP400/ Mustang 4800 0.53 gpm 2.0 lpm MP300 0.46 gpm 1.75 lpm Maximum tip size MP400/ Mustang 4800 0.
Airlessco Standard Warranty Airlessco Standard Warranty Airlessco warrants all equipment referenced in this document which is manufactured by Airlessco and bearing its name to be free from defects in material and workmanship on the date of sale to the original purchaser for use.
