HERO 300S Legend Operating & Maintenance Instructions
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HERO 300S Legend Operating & Maintenance Instructions

Airless spray equipment safety, operating and maintenance instructions and parts list
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AIRLESS SPRAY EQUIPMENT
SAFETY, OPERATING AND
SAFETY, OPERATING AND
MAINTENANCE INSTRUCTIONS
MAINTENANCE INSTRUCTIONS
AND PARTS LIST
AND PARTS LIST
H.E.R.O. Industries
H.E.R.O. Industries
a division of Middlefield Bancorp Limited
a division of Middlefield Bancorp Limited
2719 Lake City Way
2719 Lake City Way
Burnaby, B.C., V5A 2Z6
Burnaby, B.C., V5A 2Z6
Phone: (604) 420- - 6543
Phone: (604) 420
6543
Toll Free
To
ll Free 800
800- - 494
494- - 4376
4376
Fax: ( 604 ) 420- - 8725C
Fax: ( 604 ) 420
8725C
E E - - Mail: sales@hero.ca
Mail: sales@hero.ca
Website: //www.hero.ca
Website: //www.hero.ca
H.E.R.O. INDUSTRIES
300S / 300SL LEGEND Owner's Manual
1

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  • Page 1 AIRLESS SPRAY EQUIPMENT SAFETY, OPERATING AND SAFETY, OPERATING AND MAINTENANCE INSTRUCTIONS MAINTENANCE INSTRUCTIONS AND PARTS LIST AND PARTS LIST H.E.R.O. Industries H.E.R.O. Industries a division of Middlefield Bancorp Limited a division of Middlefield Bancorp Limited 2719 Lake City Way 2719 Lake City Way Burnaby, B.C., V5A 2Z6 Burnaby, B.C., V5A 2Z6 Phone: (604) 420- - 6543...
  • Page 2 H.E.R.O. WARRANTY H.E.R.O. INDUSTRIES , guarantees this airless pump to be free of defects in materials and workmanship to the original owner, for a period of one full year from the date of purchase. The warranty entitles the owner to parts replacement at no charge. The parts replacement warranty is valid for any necessary replacement, whither caused by material or workmanship defect or simple wear.

  • Page 3: Table Of Contents

    Important Safety Precautions Introduction Operating Instructions Setting up to Spray Flushing The Unit Special Notes Airless Spray Painting Suggestions Trouble Shooting Intake Seat Replacement Outgo Valve Bleed Valve Repairs Diaphragm Replacement Hydraulic Head Insert Replacement Piston Repairs Pressure Control Valve Repairs Accessories Parts List &...

  • Page 4: Important Safety Precautions

    IMPORTANT SAFETY PRECAUTIONS Material issuing from the spray tip is at high pressure. If fingers, or any part of the body are placed near the tip of the spray gun, it is possible that the spray could break the skin and inject some of the spray material.
  • Page 5 þ ALWAYS follow H.E.R.O. recommendations for operation and safety completely. þ ALWAYS ensure that switch is in off position before plugging in the electric motor. þ ALWAYS set trigger lock on gun in "LOCKED" position when not in use, with gun locked close. þ...

  • Page 6: Introduction

    H.E.R.O. AIRLESS SPRAY PAINTING Welcome to the world of H.E.R.O. airless paint spraying. We are sure you will enjoy owning and operating your new H.E.R.O. model 300S or 300SL. With H.E.R.O. airless spray equipment you will avoid the inconvenience and mess of over spray. You are spraying paint, not air, and the paint is driven to the painting surface in a clean, fan shaped spray which penetrates all cracks and corners.

  • Page 7: Setting Up To Spray

    1 Remove unit from shipping carton. Inspect exterior of unit for any signs of freight damage. If any parts are found to be broken or damaged, immediately contact the carrier and arrange for an inspection of the concealed damage. Claims for freight damage must be made by the CONSIGNEE and not by the shipper.

  • Page 8: Flushing The Unit

    FLUSHING THE UNIT AT SHUTDOWN If shutting down for a short period of time, it is sufficient to trigger the gun to relieve pressure. Then set the safety lock on gun to "locked" position with the gun locked closed and immerse the gun in a container of the correct thinner for the paint you are spraying.

  • Page 9: Special Notes

    SPECIAL NOTES AND INSTRUCTIONS NEVER LEAVE THE UNIT UNDER PRESSURE WHEN NOT SPRAYING (MOTOR TURNED OFF). RELIEVE PRESSURE BY TRIGGERING GUN. NEVER STORE THE UNIT WITH PAINT OR WATER IN THE PUMP SYSTEM, EVEN OVERNIGHT. ý NEVER attempt to start the motor when the unit is under pressure. Relieve pressure and follow instructions in "Setting up to spray"...

  • Page 10: Airless Spray Painting Suggestions

    SUGGESTIONS AND TECHNIQUE A good airless spray application is the result of many factors. Surface preparation, which includes cleaning and degreasing, priming, material compatibility, quality finish product and correct application technique, are all important to the finished results. The key to all good applications is a good spray gun technique. The finished results are what the client will look at and base his opinion on.
  • Page 11 AIRLESS SPRAY PAINTING SUGGESTIONS AND TECHNIQUE FIG. 1 Poor Good Tailing Good Pattern Fog, Over Spray FIG. 2 FIG. 2 FIG. 3 FIG. 4 FIG. 5 H.E.R.O. INDUSTRIES 300S / 300SL LEGEND Owner’s Manual...
  • Page 12 AIRLESS SPRAY PAINTING SUGGESTIONS AND TECHNIQUE TIP SIZE FOR APPLICATION OF .021 Exterior Latex on large unobstructed areas. (max. size allowed) ( 60 OZ. ) .018 Interior Latex, Exterior Latex, Shake Paint, Exterior Flat Paints. ( 46 OZ. ) .015 Alkyd Flat Enamel, Interior Latex, Semi-Gloss Enamel, Stains.

  • Page 13: Spray Tip Selection

    AIRLESS TIP’S FLOW RATE ( GALLONS PER MINUTE ) Orifice Size In Inches .007 .009 .011 .013 .015 .017 AIRLESS TIP RECOMMENDATIONS COATINGS Varnishes Lacquer Finishes (clear) Sanding Sealers Shellac (clear) Transparent Stain Water Sealers (clear) Solid Stains Exterior House Paint Interior Wall Paint Interior &...

  • Page 14: Troubleshooting

    Hydraulic Energy Regulated Output (H.E.R.O.) is more than just our name, it is the bases for the operation of the pump. It is the regulation or control, of hydraulic energy, which allows the equipment to build and then deliver or have an output of pressure. Once you have a basic understanding of the operation of the equipment and the effect created in one area and how it will effect operation in another area, you will be better able to diagnose and make repairs.
  • Page 15 The backward movement of the piston, creates a vacuum in the hydraulic system. This causes the hydraulic outgo valve to close and the hydraulic intake valve to open (fig# 1). Opening of the hydraulic intake valve allows a new supply of hydraulic oil to enter the system, replacing the oil which was used on the forward stroke.
  • Page 16 PAINT OUTGO VALVE (REF# 22, PART # 4-11A) The paint outgo valve monitors and controls the flow of spray materials as it leaves the sprayer. It also works together with the paint intake valve, to build paint pressure as specified by the setting made by the hydraulic outgo valve (pressure control valve).
  • Page 17 To verify the performance of an airless sprayer, use of pressure gauge is required. A pressure gauge (min. 3000 psi) installed at the gun, using a new .021 tip, and not less than 50 feet of H.E.R.O. airless spray hose is needed.
  • Page 18 SITUATION POSSIBLE CAUSE (REMEDY) ELECTRIC MOTOR WON'T START/RUN Unit unplugged or building circuit fuse is blown. (check, replace or reset fuse) Pump under pressure. (reduce pressure setting by turning pressure control knob counter-clockwise, trigger gun to relieve pressure). Too light or too long of extension cord. (replace with correct cord. If distance greater than 100 feet, obtain and install extra length of H.E.R.O.
  • Page 19 SITUATION POSSIBLE CAUSE (REMEDY) TOTAL LOSS OF PRESSURE, DIAPHRAGM HAS NO MOVEMENT OR MOVEMENT CAN BE STOPPED...CONTINUED. 2. Air lock created on hydraulic side of pump. (air entering hydraulic side due to loose hydraulic feed line fittings, (ref# 63), punctured hydraulic feed line, poor seal at hydraulic intake valve, (ref# 62), or elbow, (ref# 61).
  • Page 20 SITUATION POSSIBLE CAUSE (REMEDY) PUDDLE OF OIL APPEARING UNDER SPRAYER DURING OPERATION 1. Hydraulic fitting loose/cracked or hydraulic lines are punctured. (examine all hydraulic lines and fittings for cracks, breaks or looseness. Replace or tighten as required). 2. Piston seals (ref# 90) worn. (remove and replace piston seals, following closely the detailed instructions on page 28-29).
  • Page 21 SITUATION POSSIBLE CAUSE (REMEDY) FLUID BEING SPRAYED OUT OF TIP PULSATES, SPRAY HOSE LIES QUIET WHEN GUN TRIGGER CLOSED 1. Spray tip worn out or too large. (replace with new tip of correct size. Tip must not exceed a good condition .021 tip ).
  • Page 22 SITUATION POSSIBLE CAUSE (REMEDY) SPRAY MATERIAL LEAKS AT PRIME VALVE STEM 1. Prime valve stem packings (ref# 38 or 39) defective. (replace damaged packings following detailed instructions on page 25. SPRAY MATERIAL LEAKS OUT PRIME VALVE HOSE WITH VALVE CLOSED 1.

  • Page 23: Intake Seat Replacement

    REPLACEMENT OF INTAKE SEAT 1/4 Allan wrench 5/8 Socket Torque Wrench Hammer 1. Remove the four bolts (ref# 9), securing the intake endcap (ref# 11) to the pump. 2. Remove the ball cage (ref# 14), ball (ref# 13) and elbow (ref# 8) from the endcap.

  • Page 24: Outgo Valve

    Tools or Supplies Required Vise 11/16” Open end wrench Teflon Tape or pipe sealant. 1 Open prime valve, (ref# 34) in order to release pressure from the material side of pump. 2 Remove pressure control knob, (ref# 74) and pull P.C. stem, (ref# 77) out to internal stop, thereby releasing hydraulic pressure.

  • Page 25: Bleed Valve Repairs

    Vise 9/16 Open end wrench 1. Open bleed valve (ref # 34), turning handle counter-clockwise to release pressure from material side of pump. 2. Remove bleed valve return hose, (ref # 48) from bleed valve return fitting, (ref # 44). 3.

  • Page 26: Diaphragm Replacement

    DIAPHRAGM REPLACEMENT 1/4 Allan wrench 4-45-3 Pressure cap 1/8 Allan wrench H.E.R.O. hydraulic oil Small steel Plate “E” 1. Tilt unit up onto its’ nose ( resting vertically on handle, ref# 130). See Fig. 1, page 27. 2. Remove the eight bolts ( ref# 17) securing the paint head ( ref# 18) to the hydraulic head ( ref# 53). 3.

  • Page 27: Hydraulic Head Insert Replacement

    HYDRAULIC HEAD INSERT REPLACEMENT 1/4 Allan wrench 4-45-3 Pressure cap Vise H.E.R.O. hydraulic oil Fig. 1 1. Tilt unit up onto its’ nose ( resting vertically on handle, ref# 130). See Fig. 1. 2. Remove the eight bolts ( ref# 17) securing the paint head ( ref# 18) to the hydraulic head ( ref# 53). 3.

  • Page 28: Piston Repairs

    Vise 9/16 Open end wrench 1/2 Socket Circlip pliers 1. Remove hydraulic feed line, (ref# 63) from hydraulic intake valve, (ref# 62) and also remove hydraulic return line, (ref# 72) from the pressure control valve, (ref# 73). Plug lines to minimize oil loss. (Hint; golf tees work well for this) 2.

  • Page 29: Piston Repairs 28

    7. Remove piston circlip, using circlip pliers. Remove piston from rod. NOTE: Use extreme caution not to damage ci rclip or the internal circlip groove of piston. Piston rod circlip, washer, o-ring, and nut are not available individually. Part s are available with the purchase of piston rod, (ref# 93) only.

  • Page 30: Pressure Control Valve Repairs

    Vise 7/16” Open end wrench Teflon Tape or pipe sealant, optional * 1 Remove pressure control knob, (ref# 74) and pull P.C. stem, (ref# 77) out to the internal stop (1/16" to 1/8") thereby releasing hydraulic pressure. 2 Remove hydraulic return line, (ref# 72) from P.C. fitting, (ref# 81). 3 Place 11/16"...

  • Page 31: Accessories

    1/4x1/4 Hose to Hose Connector Paint Hose, 50’ x 1/4” 3-Whipend Whipend, 3’ x 3/16” 10-55-011-2 ASM Gun, Model 400, 2 Finger Trigger, c/w 1710 Zip Tip 10-55-011-4 ASM Gun, Model 400, 4 Finger Trigger, c/w 1710 Zip Tip 10-55-300-2 ASM Gun, Model 300, 2 Finger Trigger, c/w 1710 Zip Tip 10-55-300-4 ASM Gun, Model 300, 4 Finger Trigger, c/w 1710 Zip Tip...

  • Page 32: Parts List & Description

    Please order parts by the appropriate part number and not by reference number. The quantity required, per unit, is shown for each part number. Part numbers in bold text indicate whole assemblies or kits. These parts may also be purchased individually PART # 4-210 SIPHON ASSEMBLY COMPLETE, ( Ref# 2-7, 48-50 )

  • Page 33: Hydraulic Parts

    Please order parts by the appropriate part number and not by reference number. The quantity required, per unit, is shown for each part number. Part numbers in bold text indicate whole assemblies or kits. These parts may also be purchased individually PART # SWIVEL 4-6654...
  • Page 34 Please order parts by the appropriate part number and not by reference number. The quantity required, per unit, is shown for each part number. Part numbers in bold text indicate whole assemblies or kits. These parts may also be purchased individually PART # CROSSBLOCK, Aluminum 25-2...

  • Page 35: Drive Parts

    Please order parts by the appropriate part number and not by reference number. The quantity required, per unit, is shown for each part number. Part numbers in bold text indicate whole assemblies or kits. These parts may also be purchased individually PART # 38A-3 SEAT, Piston, Bronze...
  • Page 36 Please order parts by the appropriate part number and not by reference number. The quantity required, per unit, is shown for each part number. Part numbers in bold text indicate whole assemblies or kits. These parts may also be purchased individually PART # E-CLIP 4-50...

  • Page 37: Exploded Unit Schematics

    300SL H.E.R.O. INDUSTRIES PARTS SCHEMATIC 300S / 300SL LEGEND 300S / 300SL LEGEND Owner’s Manual...
  • Page 38 PARTS SCHEMATIC 300S / 300SL LEGEND H.E.R.O. INDUSTRIES 300S / 300SL LEGEND Owner’s Manual...
  • Page 39 Phone: Fax: __________________________ __________________________ __________________________ __________________________ Model: __________________ Serial #: _________________ Date of Purchase: H.E.R.O. INDUSTRIES Manufactured by: H.E.R.O. INDUSTRIES 2719 LAKE CITY WAY BURNABY, B.C. CANADA 604-420-6543 800-494-4376 604-420-8725 Purchased From 300S / 300SL LEGEND Owner’s Manual...

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