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306-787

EQUIPMENT MISUSE HAZARD

General Safety

Any misuse of the spray equipment or accessories, such as
overpressurizing, modifying parts, using incompatible chemi-
cals and fluids, or using worn or damaged parts, can cause
them to rupture and result in fluid injection, splashing in the
eyes or on the skin, or other serious bodily injury, or fire, ex-
plosion or property damage.

Never alter or modify any part of this equipment; doing so
could cause it to malfunction.

Check all spray equipment regularly and repair or replace
worn or damaged parts immediately.

Always wear protective eyewear, gloves, clothing and respi-
rator as recommended by the fluid and solvent manufacturer.

System Pressure

Refer to the Technical Data on page 19 for specific fluid and
air working pressures. Never exceed the maximum fluid or air
working pressure. Be sure that all spray equipment and ac-
cessories are rated to withstand the maximum working pres-
sure of this sprayer. Do not exceed the maximum working
pressure of the lowest rated component or accessory used in
the system.

Fluid Compatibility

Be sure that all fluids and solvents used are chemically com-
patible with the wetted parts shown in the Technical Data on
page 19 and in the separate pump and component manuals.
Always read the manufacturer’s literature before using fluid or
solvent in this pump.

FIRE OR EXPLOSION HAZARD

Static electricity is created by the flow of fluid through the
pump and hose. If every part of the spray equipment is not
properly grounded, sparking may occur, and the system may
become hazardous. Sparking may also occur when plugging
in or unplugging a power supply cord. Sparks can ignite
fumes from solvents and the fluid being sprayed, dust parti-
cles and other flammable substances, whether you are
spraying indoors or outdoors, and can cause a fire or explo-
sion and serious bodily injury and property damage. Do not
plug in or unplug any power supply cords in the spray area
when there is any chance of igniting fumes still in the air.

If you experience any static sparking or even a slight shock
while using this equipment, stop spraying immediately.
Check the entire system for proper grounding. Do not use the
system again until the problem has been identified and cor-
rected.

Grounding

To reduce the risk of static sparking, ground the pump, object
being sprayed, and all other spray equipment used or located
in the spray area. Check your local electrical code for detailed
grounding instructions for your area and type of equipment.
Be sure to ground all of this spray equipment:

1.

Pump: use a ground wire and clamp as shown in Fig. 1.

2.

Air compressor: follow manufacturer’s recommendations.

3.

Air and fluid hoses: use only grounded hoses with a
maximum of 500 feet (150 m) combined hose length to
ensure grounding continuity. Refer also to HOSE SAFE-
TY.

4.

Spray gun: grounding is obtained through connection to
a properly grounded fluid hose and pump.

5.

Object being sprayed: according to your local code.

6.

Fluid supply container: according to your local code.

7.

All solvent pails used when flushing, according to local
code. Use only metal pails, which are conductive, placed
on a grounded surface. Do not place the pail on a non-
conductive surface, such as paper or cardboard, which
interrupts the grounding continuity.

8.

To maintain grounding continuity when flushing or reliev-
ing pressure, always hold a metal part of the spray gun
firmly to the side of a grounded 

metal pail, then trigger

the spray gun.

To ground the pump:

To ground the pump, loosen the grounding lug locknut (W)
and washer (X). Insert one end of a 1.5 mm

 (12 ga) mini-

mum ground wire (Y) into the slot in lug (Z) and tighten the
locknut securely. See Fig. 1. Connect the other end of the
wire to a true earth ground. See Accessories on page 13.

Fig. 1

W

X

Y

Z

Flushing Safety

Before flushing, be sure the entire system and flushing pails
are properly grounded. Refer to Grounding, at the left. Fol-
low the Pressure Relief Procedure on page 3, and 

remove

the spray tip from the spray gun. Always use the lowest pos-
sible fluid pressure, and maintain firm metal-to-metal contact
between the spray gun and the pail during flushing to reduce
the risk of fluid injection injury, static sparking and splashing.

Summary of Contents for Hydra-Spray 224-621

Page 1: ...1 except includes hose gun and RAC IV DripLess Tip Guard and SwitchTip Model 224 622 Series A Basic Sprayer with 45 1 Ratio King Severe Duty Pump 4050 psi 280 bar Maximum Fluid Working Pressure 90 psi 6 3 bar Maximum Air Input Pressure Model 231 153 Same as 224 622 except includes hose gun and RAC IV DripLess Tip Guard and SwitchTip Severe Duty Displacement Pumps have an abrasion and corrosion res...

Page 2: ... Table of Contents Warnings 3 5 Installation 6 7 Operation 7 Parts 8 13 Accessories 13 16 Technical Data 19 Warranty 20 Graco Toll Free Phone Numbers 20 ...

Page 3: ...ure Relief Proce dure below then remove the spray tip Aim the spray gun into a grounded metal pail holding the spray gun firmly to the pail Using the lowest possible pressure trigger the spray gun If the fluid emitted is not diffused into an irregular stream replace the diffuser immediately Tip Guard Always have the tip guard in place on the spray gun while spraying The tip guard alerts you to the...

Page 4: ...r If you experience any static sparking or even a slight shock while using this equipment stop spraying immediately Check the entire system for proper grounding Do not use the system again until the problem has been identified and cor rected Grounding To reduce the risk of static sparking ground the pump object being sprayed and all other spray equipment used or located in the spray area Check you...

Page 5: ...rounded spray system Check the electrical resistance of your air and fluid hoses at least once a week If your hose does not have a tag on it which specifies the maximum elec trical resistance contact the hose supplier or manufacturer for the maximum resistance limits Use a resistance meter in the appropriate range for your hose to check the resistance If the resistance exceeds the recommended limi...

Page 6: ...ilter E 3 8 npsm f Fluid Outlet Union F Air Regulator supplied G 3 4 npsm f Air Inlet Union H Bleed Type Master Air Valve for accessories J Main Air Supply Line K Bleed Type Master Air Valve supplied for pump L Air Line Filter M Air Line Lubricator N Grounded Air Supply Hose P Grounded Fluid Supply Hose R Airless Spray Gun S Pump Runaway Valve Y Ground Wire required ...

Page 7: ...aster air valve The fluid drain valve B is required in your sys tem to relieve fluid pressure in the pump hose and gun see the WARNING above Air Line Accessories Install the following accessories in the order shown in the Typical Installation using adapters as necessary A pump runaway valve S senses when the pump is running too fast and automatically shuts off the air to the motor A pump which run...

Page 8: ...three lengths of hose 103 and two adapters 104 7 23 25 26 19 20 21 45 44 15 5 11 10 30 31 32 0991A Parts Model 224 621 Series A 30 1 Ratio Bulldog Portable Severe Duty Pump Includes items 1 45 Model 231 154 Series A 30 1 Ratio Bulldog Portable Severe Duty Pump with hose and gun Includes items 1 45 102 108 ...

Page 9: ...ivel 1 20 158 586 BUSHING 1 npt m x 3 4 npt f 1 21 214 961 HOSE suction 3 4 npt mbe 3 4 ID 6 ft 1 8 m long 1 23 165 767 TUBE suction 3 4 npt f 18 457 mm long 1 25 175 013 NIPPLE 3 4 npt x 3 4 npt 1 26 157 785 UNION adapter straight 3 4 npt m x 3 4 npsm f swivel 1 30 100 004 CAPSCREW hex hd 3 8 16 unc 2a 1 25 31 mm long 4 31 100 133 LOCKWASHER 3 8 4 32 100 131 NUT hex 3 8 16 unc 2b 4 44 205 448 COU...

Page 10: ...0992 3 2 1 3 REF 7 23 25 19 20 21 45 44 15 5 11 10 30 31 32 33 14 10 306 787 Parts Model 224 623 Series A 20 1 Ratio King Portable Pump Includes items 1 45 ...

Page 11: ...0 016 LOCKWASHER spring 1 4 size 1 14 100 721 PLUG pipe 1 4 npt 1 15 100 902 SCREW round hd machine 1 4 20 1 1 2 38 mm long 1 19 155 665 UNION adapter straight 3 8 npt m x 3 8 npsm f swivel 1 20 180 194 ELBOW street 2 npt m x 1 npt f 1 21 214 959 HOSE suction 1 npt mbe 1 ID 6 ft 1 8 m long 1 23 169 528 TUBE suction 1 npt f 18 457 mm long 1 25 175 013 NIPPLE 3 4 npt x 3 4 npt 1 30 100 004 CAPSCREW ...

Page 12: ... Gun Kit includes items 103 108 The kit includes three lengths of hose 103 and two adapters 104 12 306 787 Parts Model 224 622 Series A 45 1 Ratio King Portable Severe Duty Pump Includes items 1 45 Model 231 153 Series A 45 1 Ratio King Portable Severe Duty Pump with hose and gun Includes items 1 45 102 108 ...

Page 13: ...adapter straight 3 4 npt m x 3 4 npsm f swivel 1 30 100 004 CAPSCREW hex hd 3 8 16 unc 2a 1 25 31 mm long 4 31 100 133 LOCKWASHER 3 8 4 32 100 131 NUT hex 3 8 16 unc 2b 4 44 205 448 COUPLING hose 3 8 npsm f 1 45 186 447 TUBE drain nylon 1 4 ID 5 long 1 102 218 659 HOSE AND GUN KIT Includes items 103 108 1 103 215 245 HOSE fluid nylon 3 8 9 5 mm ID 3 8 npt mbe 50 15 2 m long 3 104 156 173 UNION ada...

Page 14: ...ond the pre adjusted setting due to an empty supply container interrupted fluid supply to the pump or excessive cavitation 3 4 npt f inlet and outlet Air Line Quick Disconnect For connecting main air line to sprayer or accessories Order coupler and pin fitting of choice 208 536 Air Line Coupler 1 4 npt f 169 967 Pin Fitting 1 4 npt f 169 970 Pin Fitting 1 4 npt m 169 971 Pin Fitting 3 8 npt m 208 ...

Page 15: ...0 1 4 6 4 mm 25 ft 7 6 m 1 4 npsm fbe swivel 223 541 1 4 6 4 mm 50 ft 15 2 m 1 4 npsm fbe swivel 214 703 3 8 9 5 mm 25 ft 7 6 m 3 8 npt mbe 214 705 3 8 9 5 mm 50 ft 15 2 m 3 8 npt mbe 214 920 3 8 9 5 mm 100 ft 30 4 m 3 8 npt mbe Grounded Nylon Fluid Hose 5000 psi 345 bar Maximum Working Pressure Part No ID Length Thd Size 214 914 1 4 6 4 mm 25 ft 7 6 m 1 4 npsm fbe swivel 214 915 1 4 6 4 mm 50 ft ...

Page 16: ... outlets of the surge tank 100 176 3 8 npt m x 1 4 npt f 100 206 1 2 npt m x 1 4 npt f For Two Gun Systems Each line in a two gun system must have a shutoff valve to relieve fluid pressure if the fluid line becomes clogged and to isolate one gun for servicing while the other is in operation Director valve 214 711 is recom mended for both purposes Use elbow 100 840 to di rect the outlet flow from t...

Page 17: ... 107 220 954 235 463 Airless Spray Gun Airless Spray Gun Accessories p 15 Old New 208 327 235 460 Airless Spray Gun Airless Spray Gun Old New 208 663 235 462 Airless Spray Gun Airless Spray Gun Old New 208 664 235 461 Airless Spray Gun Airless Spray Gun Old New New 220 956 235 458 235 459 Flex Gun Flex Gun Flex Gun ...

Page 18: ...18 306 787 Notes ...

Page 19: ...000 psi 210 bar Fluid filter element 60 mesh 250 micron screen Air inlet 3 4 npsm f Fluid outlet pump 3 4 npt f Height 59 75 1517 mm Width 29 25 743 mm Weight 200 lb 91 kg Wetted parts Pump see separate pump manual supplied Spray Gun see 307 046 Surge Tank see 307 296 Fluid Hoses Suction Tube Nylon Aluminum Models 224 622 and 231 153 45 1 Ratio King Pumps Maximum air input pressure 90 psi 6 3 bar ...

Page 20: ...airs will be made at a reasonable charge which charges may include the costs of parts labor and transportation DISCLAIMERS AND LIMITATIONS THE TERMS OF THIS WARRANTY CONSTITUTE PURCHASER S SOLE AND EXCLUSIVE REMEDY AND ARE IN LIEU OF ANY OTHER WAR RANTIES EXPRESS OR IMPLIED INCLUDING WARRANTY OF MERCHANTABILITY OR WARRANTY OF FITNESS FOR A PARTICULAR PUR POSE AND OF ANY NON CONTRACTUAL LIABILITIES...

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