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Graco 16U277 Operation

Big rig sprayers
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Operation
™
GH
Series Big Rig Sprayers
- Use with Architectural Coatings, Paints, Roof Coatings and Below Grade Coatings -
Model
Description
16U277
GH1017es Bare
16U278
GH2570es Bare
16U279
GH733es Bare
16U280
GH5040es Bare
16U285
GH933es Bare
16U281
GH933 Bare
Important Safety Instructions
Read all warnings and instructions in this
manual. Save these instructions.
Related Manuals:
311254
312145
332157
332158
308043
311825
311762
Maximum Working Pressure
1000 psi (6.9 MPa, 69 bar)
2500 psi (17.2 MPa, 172 bar)
4000 psi (27.6 MPa, 276 bar)
5000 psi (34.5 MPa, 345 bar)
7250 psi (50.0 MPa, 500 bar)
7250 psi (50.0 MPa, 500 bar)
332156B
EN
ti20726a

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Summary of Contents for Graco 16U277

  • Page 1 Series Big Rig Sprayers - Use with Architectural Coatings, Paints, Roof Coatings and Below Grade Coatings - Model Description Maximum Working Pressure 16U277 GH1017es Bare 1000 psi (6.9 MPa, 69 bar) 16U278 GH2570es Bare 2500 psi (17.2 MPa, 172 bar)

  • Page 2: Table Of Contents

    Notes ......17 Graco Standard Warranty ... . 18...

  • Page 3: Warnings

    Check hoses and parts for signs of damage. Replace any damaged hoses or parts. • This system is capable of producing 7250 psi (50.0 MPa, 500 bar). Use Graco replacement parts or accessories that are rated a minimum of 7250 psi (50.0 MPa, 500 bar).
  • Page 4 Warnings WARNING WARNING 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 and disconnect all power sources.

  • Page 5: Component Identification

    Component Identification Component Identification START ti20727a Engine Controls Engine ON/OFF Switch (Electric-Start Units) Engine ON/OFF Switch (Pull-Start Units) Lift Location Suction Tube Holder Pressure Control Lock Ring Serial Number ID Label Hydraulic Pump Valve 10 Hydraulic Oil Fill 11 Pressure Bleed Valve, T handle 12 Trigger Lock 332156B...

  • Page 6: Lift Instructions

    Lift Instructions Lift Instructions 3. Be sure straps/chains used for lifting are rated to support weight of sprayer: 500 lbs (227 kg). 4. Do not lift unit with only one strap secured across To avoid injury, always use designated Lift Locations pump.

  • Page 7: Pressure Relief Procedure

    Pressure Relief Procedure Pressure Relief Procedure Grounding Follow the Pressure Relief Procedure whenever you see this symbol. Ground sprayer with grounding clamp to earth ground. This equipment stays pressurized until pressure is manually relieved. To help prevent serious injury from pressurized fluid, such as skin injection, splashing fluid and moving parts, follow the Pressure Relief Procedure when you stop spraying and before cleaning, checking, or servicing the equipment.

  • Page 8: Setup

    2. Connect other end of hose to gun and tighten fit- tings securely. ti5242a 8. Check hydraulic oil level, Component ID, page ##. Add only Graco Hydraulic Oil, ISO 46 169236 (5 gallon/18.9 liter) or 207428 (1 gallon/3.8 liter). Hydraulic tank capacity is approximately 4.0 gallons (15.14 liters).

  • Page 9: Startup

    Startup Startup 5. Start engine. a. Move fuel valve to open. Hydraulic system and engine may become very hot during operation and could burn skin if touched. ti5248a Flammable materials spilled on hot, bare motor could b. Move choke to closed. cause fire or explosion.
  • Page 10 Startup 6. Set pump valve ON (hydraulic motor is now active). 10. Hold gun against grounded metal flushing pail. Trigger gun and increase fluid pressure slowly until pump runs smoothly. ti7108a ti7110c ti20730a 7. Increase pressure enough to start hydraulic motor 11.

  • Page 11: Clearing Tip Clogs

    Startup SwitchTip and Guard Assembly Clearing Tip Clogs 1. Insert SwitchTip. Insert seat and OneSeal. 1. Release trigger, put trigger safety ON. Rotate SwitchTip. Take trigger safety OFF and trigger gun to clear the clog. ti5257ba NOTE: Before screwing tip and guard assembly on 2.

  • Page 12: Spraying

    Spraying Spraying 4. Adjust pressure to desired setting. Begin spraying. 1. Set pump valve ON. ti21062a ti7110c 5. Rotate Lock Ring clockwise to set pressure. ti7108a 2. Increase pressure enough to start hydraulic motor stroking and allow fluid to circulate for 15 seconds; turn pressure down.

  • Page 13: Cleanup

    Cleanup Cleanup 6. Turn engine ON and start engine. 7. Set pump valve ON. Rotate handle clockwise to close prime valve. 1. Perform Pressure Relief Procedure, page 7. 2. Remove guard and SwitchTip. ti7108a ti7122b 3. GH933 units only: Unscrew bowl, remove filter. Assemble without filter.
  • Page 14 Cleanup 12. Raise siphon tube above flushing fluid and run 14. Rotate handle clockwise to close prime valve. Trig- sprayer for 15 to 30 seconds to drain fluid. ger gun into flushing pail to purge fluid from hose. ti7129b ti21060a ti20729a 13.

  • Page 15: Troubleshooting

    Hydraulic fluid too low. Shut off sprayer. Add fluid* Belt worn, broken or off. Replace. See manual 332157. Hydraulic pump worn or damaged. Bring sprayer to Graco distributor for repair. Dried paint seized paint pump rod. Service pump. See manuals 308043, 311825, 311762.
  • Page 16 Fluid supply is low or empty Refill supply container Excessive hydraulic pump noise Low hydraulic fluid level Turn sprayer OFF. Add fluid* *Check hydraulic fluid level often. Do not allow it to become too low. Use only Graco approved hydraulic fluid, page 7. 332156B...

  • Page 17: Notes

    Sound Pressure 91 dB(A) Sound Power 106 dB(A) *measured at maximum normal load conditions Wetted Parts Displacement Pump steel, nitralloy, tungsten, carbide, PTFE, leather, polyethylene Miscellaneous Graco-Approved Hydraulic Oil 169236 5 gallons 19 liters 207428 1 gallon 3.8 liters 332156B...
  • Page 18 Sound Pressure 91 dB(A) Sound Power 106 dB(A) *measured at maximum normal load conditions Wetted Parts Displacement Pump steel, nitralloy, tungsten, carbide, PTFE, leather, polyethylene Miscellaneous Graco-Approved Hydraulic Oil 169236 5 gallons 19 liters 207428 1 gallon 3.8 liters 332156B...
  • Page 19 Sounds Levels* Sound Pressure 91 dB(A) Sound Power 106 dB(A) *measured at maximum normal load conditions Wetted Parts Displacement Pump steel, nitralloy, tungsten, carbide, PTFE, leather Miscellaneous Graco-Approved Hydraulic Oil 169236 5 gallons 19 liters 207428 1 gallon 3.8 liters 332156B...
  • Page 20 Sounds Levels* Sound Pressure 91 dB(A) Sound Power 106 dB(A) *measured at maximum normal load conditions Wetted Parts Displacement Pump steel, nitralloy, tungsten, carbide, PTFE, leather Miscellaneous Graco-Approved Hydraulic Oil 169236 5 gallons 19 liters 207428 1 gallon 3.8 liters 332156B...
  • Page 21 Sound Power 106 dB(A) *measured at maximum normal load conditions Wetted Parts Displacement Pump steel, nitralloy, tungsten, carbide, PTFE, leather, polyethylene Filter polyethylene, stainless steel Miscellaneous Graco-Approved Hydraulic Oil 169236 5 gallons 19 liters 207428 1 gallon 3.8 liters 332156B...
  • Page 22 Notes Notes 332156B...
  • Page 23 Notes Notes 332156B...

  • Page 24: Graco Standard Warranty

    With the exception of any special, extended, or limited warranty published by Graco, Graco will, for a period of twelve months from the date of sale, repair or replace any part of the equipment determined by Graco to be defective.

This manual is also suitable for:

16u27816u27916u28016u28516u281Big rig gh series ... Show all

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