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Graco GH 733 HYDRA–SPRAY Instructions-Parts List Manual

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See also: Instruction Manual
INSTRUCTIONS-PARTS LIST
This manual contains important
warnings and information.
READ AND KEEP FOR REFERENCE.
INSTRUCTIONS
GH 733 HYDRA–SPRAYr SPRAYER
3500 psi (240 bar, 24 MPa) MAXIMUM WORKING PRESSURE
U.S. Patent Pending
Model 231733, Series C
Sprayer only. Has Severe–Duty* Displacement Pump
Model 230975
Includes Sprayer 231733, Hose, Swivel, Gun,
RACr IV, DripLesst Tip Guard and SwitchTipt
*Severe–duty displacement pumps have an abrasion
and corrosion–resistant displacement rod and sleeve.
Refer to the Technical Data in manual 307862.
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441
ECOPYRIGHT 1983, GRACO INC.
Graco Inc. is registered to I.S. EN ISO 9001
307616
First choice when
quality counts.t
Rev. U
7870A

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Summary of Contents for Graco GH 733 HYDRA–SPRAY

  • Page 1 *Severe–duty displacement pumps have an abrasion and corrosion–resistant displacement rod and sleeve. Refer to the Technical Data in manual 307862. 7870A GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441 ECOPYRIGHT 1983, GRACO INC. Graco Inc. is registered to I.S. EN ISO 9001...

  • Page 2: Table Of Contents

    D Read all instruction manuals, tags, and labels before operating the equipment. D Use the equipment only for its intended purpose. If you are not sure, call your Graco distributor. D Do not alter or modify this equipment. Use only genuine Graco parts.

  • Page 3: Warnings

    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. D Fluid injected into the skin may look like just a cut, but it is a serious injury.

  • Page 4: Fire And Explosion Hazard

    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. D If there is any static sparking or you feel an electric shock while using this equipment, stop spray- ing immediately.

  • Page 5: Component Identification

    2. Fill the Packing Nut/Wet Cup 1/3 full with Graco See Fig 1. Throat Seal Liquid (TSL), supplied. See Fig. 2.
  • Page 6 FUEL SHUTOFF VALVE To prevent damage to the cooling system and hydraulic pump, use only Graco Hydraulic Oil, 169236 (5 gal./20 liter) or 207428 (1 gal/3.8 liter). Other types of hydraulic oil may damage the hydrau- ENGINE OIL lic components.
  • Page 7 Setup 5. Fill the Fuel Tank 6. Grounding WARNING WARNING FIRE AND EXPLOSION HAZARD To reduce the risk of static sparking, fire FIRE AND EXPLOSION HAZARD or explosion which can result in serious Fuel spilled on a hot surface can cause bodily injury and property damage, a fire or explosion and serious bodily ground the sprayer, all system components, and...

  • Page 8: Flushing

    Flushing When to Flush 4. Changing from oil–base to water–base paint. Flush with mineral spirits, followed by soapy water, 1. New sprayer. Your new sprayer was factory tested then a clean water flush. with lightweight oil which was left in to protect 5.
  • Page 9 Flushing 12. Circulate the solvent until the system is thoroughly WARNING flushed. 13. Release the trigger and engage the gun safety FIRE AND EXPLOSION HAZARD latch. To reduce the risk of static sparking and splashing when flushing, always remove 14. If you are going to start spraying, place the the spray tip from the gun and hold a pump or suction tube into the supply container.

  • Page 10: Operation

    Operation Pressure Relief Procedure 2. Starting the Sprayer a. Open the bypass valve to make startup easier. WARNING In the open position, the valve lever is parallel to the body of the valve. See Fig 6. Close the INJECTION HAZARD filter drain valve.
  • Page 11 Operation If the motor stalls during operation, turn OFF the igni- CAUTION tion key. With your hand, firmly press straight down on the motor reset button. Now try to restart the sprayer. If The engine throttle has been set and locked at 3000 it will not start, refer to the separate motor manual, 307158.

  • Page 12: Maintenance

    Install the reservoir cover and nuts. Then pour often as recommended in Steps 4 and 5., below. in five gallons (19 liters) of Graco Hydraulic Oil through the intake filter. See Fig 7. Install the 4. Check the hydraulic oil level weekly. The oil fill cap.

  • Page 13: Troubleshooting

    Check for loose connections on siphon assembly, tighten, then reprime pump. Fluid supply is low or empty. Refill supply container. *Check hydraulic fluid level often. Do not allow it to become too low. Use only Graco approved hydraulic fluid. See pages 5 and 20. 307616...
  • Page 14 7. Remove the two capscrews (150), lockwashers 12. Reconnect the hoses. Reinstall the reservoir plug (66) and washers (64) holding the pump (107) to (51), and refill the reservoir with clean, Graco the support (117). See Fig 8. approved hydraulic oil.
  • Page 15 Replacing the Cooler and Blower c. Pull the pump support and blower off far enough for the blower to fall out of the bottom 1. Follow the Pressure Relief Procedure Warning of the housing. on page 10. Let the hydraulic system cool before beginning the service procedure.

  • Page 16: Displacement Pump Service

    Displacement Pump Service Disconnect the Displacement Pump Reconnecting the Displacement Pump 1. Flush the pump if possible. Stop the pump on the 1. Screw the connecting rod (91) into the displace- down stroke. ment rod (A) and replace the lower cotter pin (89). Screw the jam nut (90) all the way down.

  • Page 17: Complete Sprayer Parts Drawing

    Complete Sprayer Parts Drawing Model 230975, GH 733 Sprayer Includes items 501 to 510 NO. PART NO. DESCRIPTION 231733 GH 733 SPRAYER (See parts list on page 19) 100380 BUSHING, pipe, 1” npt(m) to 1/2” npt(f) 158212 BUSHING, 1/2 npt(m) to 3/8 npt(f) 218659 HOSE &...

  • Page 18: Gh733 Sprayer Parts Drawing

    GH733 Sprayer Parts Drawing Model 231733, Series C 307616...
  • Page 19 GH733 Sprayer Parts Drawing LABEL LABEL LABEL LABEL LABEL LABEL To Starter Ref 58 Switch To Engine 7877A 307616...
  • Page 20 GH733 Sprayer Parts Drawing Ref 111 Ref 77 Ref 22 7879A 307616...

  • Page 21: Gh733 Sprayer Parts List

    GH733 Parts List Model 231733, Series C 100023 WASHER, 3/8” 100133 LOCKWASHER, 3/8” Includes items 1–176 102547 CAPSCREW, hex hd, 3/8 x 2.5” 218125 RESERVOIR KIT NO. PART NO. DESCRIPTION 185951* LABEL, DANGER 107074 BREATHER, fill cap 100188 NUT, heavy hex, 5/16–18 unc–2a 106114 STRAINER, inlet 177807...
  • Page 22 Notes 307616...

  • Page 23: Accessories

    29 in. (736 mm) Sound Levels*: Order the labels directly from Graco, free of Sound Pressure ......

  • Page 24: Graco Warranty

    Graco distributor to the original purchaser for use. 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.

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