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MOVING PARTS HAZARD

Moving parts can pinch or amputate your fingers or other body
parts. KEEP CLEAR of moving parts when starting or operating
the sprayer. Follow the Pressure Relief Procedure on page 2
before checking or servicing any part of the sprayer, to prevent
it from starting accidentally.

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, explosion or prop-
erty 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 respirator
as recommended by the fluid and solvent manufacturer.

System Pressure

This sprayer can develop 2750 psi (190 bar) 

MAXIMUM WORK

-

ING PRESSURE. Be sure all spray equipment and accessories
used are rated to withstand the this pressure. DO NOT exceed
the maximum working pressure of any component or accessory
used in the system.

Fluid and Solvent Compatibility

All chemicals used in the sprayer must be chemically compatible
with the wetted parts shown in the TECHNICAL DATA on page
31. Consult your chemical supplier to ensure compatibility.

Do not use 1,1,1-trichloroethane, methylene chloride, other ha-
logenated hydrocarbon solvents or fluids containing such sol-
vents in this equipment, which contains aluminum and/or zinc
parts. Such use could result in a serious chemical reaction, with
the possibility of explosion, which could cause death, serious
bodily injury and/or substantial property damage.

HOSE SAFETY

High pressure fluid in the hoses can be very dangerous. If the
hose develops a leak, split or rupture due to any kind of wear,
damage or misuse, the high pressure spray emitted from it can
cause a fluid injection injury or other serious bodily injury or prop-
erty damage.

ALL FLUID HOSES MUST HAVE STRAIN RELIEFS ON BOTH
ENDS!
 The strain reliefs help protect the hose from kinks or bends
at or close to the coupling which can result in hose rupture.

TIGHTEN all fluid connections securely before each use. High
pressure fluid can dislodge a loose coupling or allow high pres-
sure spray to be emitted from the coupling.

NEVER use a damaged hose. Before each use, check the entire
hose for cuts, leaks, abrasion, bulging cover, or damage or
movement of the hose couplings. If any of these conditions exist,
replace the hose immediately. DO NOT try to recouple high pres-
sure hose or mend it with tape or any other device. A repaired
hose cannot contain the high pressure fluid.

HANDLE AND ROUTE HOSES CAREFULLY. Do not pull on
hoses to move equipment. Keep hoses clear of moving parts
and hot surfaces of the pump and gas engine. Do not use fluids
or solvents which are not compatible with the inner tube and
cover of the hose. DO NOT expose Graco hoses to tempera-
tures above 180

 F (82

 C) or below –40

 F (–40

 C).

Hose Grounding Continuity

Proper hose grounding continuity is essential to maintaining a
grounded spray system. Check the electrical resistance of your
fluid hoses at least once a week. If your hose does not have a
tag on it which specifies the maximum electrical resistance, con-
tact the hose supplier or manufacturer for the maximum resis-
tance limits. Use a resistance meter in the appropriate range for
your hose to check the resistance. If the resistance exceeds the
recommended limits, replace it immediately. An ungrounded or
poorly grounded hose can make your system hazardous. Also
read FIRE OR EXPLOSION HAZARD, below.

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 haz-
ardous. Sparking may also occur when plugging in or unplugging
a power supply cord or using a gasoline engine. Sparks can ignite
fumes from solvents and the fluid being sprayed, dust particles
and other flammable substances, whether you are spraying in-
doors or outdoors, and can cause a fire or explosion and serious
bodily injury and property damage.  Always plug the sprayer into
an outlet at least 20 feet (6 m) away from the sprayer and the spray
area. 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 corrected.

Grounding

To reduce the risk of static sparking, ground the sprayer and all
other spray equipment used or located in the spray area.
CHECK your local electrical code for detailed grounding instruc-
tions for your area and type of equipment. BE SURE to ground
all of this spray equipment:

1. 

Sprayer: plug the power supply cord, or extension cord – each
equipped with an undamaged, three–prong plug, into a prop-
erly grounded outlet. Do not use an adapter. All extension
cords must have three wires and be rated for 15 Amps.

2.

Fluid hoses: use only grounded hoses with a maximum

f 500

ft (150 m) combined hose length to ensure grounding continu-
ity.  See Hose Grounding Continuity on page 3.

3.

Spray gun: obtain grounding through connection to a properly
grounded fluid hose and sprayer.

4.

Object being sprayed: according to local code.

5.

Fluid supply container: according to local code.

6.

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

7.

To maintain grounding continuity when flushing or relieving
pressure, always hold a metal part of the gun firmly to the side
of a grounded metal pail, then trigger the gun.

Flushing Safety

Reduce the risk of fluid injection injury, static sparking, or splash-
ing by following the flushing procedure given on page 12 of this
manual. Follow the PRESSURE RELIEF PROCEDURE on
page 2, and remove the spray tip before flushing. Hold a metal
part of the gun firmly to the side of a grounded metal pail and use
the lowest possible fluid pressure during flushing.

IMPORTANT

United States Government safety standards have been adopted
under the Occupational Safety and Health Act. These standards
– particularly the General Standards, Part 1910, and the Con-
struction Standards, Part 1926 – should be consulted.

Summary of Contents for 220-679

Page 1: ...ar of the nozzle Never stop leaks with any part of the body Drain all pressure before removing parts Avoid accidental trig gering of gun by always setting safety latch when not spraying Never spray wi...

Page 2: ...he risk of fluid in jection when the tip is not installed Check diffuser operation regularly Follow the PRESSURE RELIEF PROCEDURE be low then remove the spray tip Aim the gun into a metal pail hold in...

Page 3: ...the electrical resistance of your fluid hoses at least once a week If your hose does not have a tag on it which specifies the maximum electrical resistance con tact the hose supplier or manufacturer f...

Page 4: ...ccidentellement Diffuseur Le diffuseur du pistolet sert diviser le jet et r duire les risques d injection accidentelle quand l ajutage n est pas en place V ri fier le fonctionnement du diffuseur r gul...

Page 5: ...ns mise la terre ou avec une mise la terre incorrecte peut entra ner des risques pour votre syst me Lisez aussi LES RISQUES D INCENDIE OU D EXPLOSION RISQUES D INCENDIE OU D EXPLOSION De l lectricit s...

Page 6: ...ola inoperante El no hacerlo puede llevar al disparo imprevisto de la pistola Difusor El difusor de la pistola dispersa el chorro pulverizado y reduce el riesgo de inyecci n cuando no est instalada la...

Page 7: ...a tierra o con la puesta a tierra en malas condiciones Leer tambi n la informaci n sobre RIES GO DE INCENDIO O EXPLOSION m s arriba PELIGRO DE INCENDIO O EXPLOSION El flujo a alta velocidad del fluid...

Page 8: ...inimum and that the outlet you use is properly grounded b DO NOT remove the grounding prong of the plug and do not use an adapter c Use a grounded extension cord which has 3 wires having a 12 gauge si...

Page 9: ...and whenever you stop spraying 1 Engage the gun safety latch 2 Turn the ON OFF switch to OFF 3 Unplug the power supply cord 4 Disengage the gun safety latch Hold a metal part of the gun firmly to the...

Page 10: ...gage the gun safety latch and proceed as in Step 1f above g Check all fluid connections for leaks relieve pres sure before tightening connections 2 Install the spray tip and tip guard a Be sure the gu...

Page 11: ...nual 307 848 Fig 5 ROTATE HANDLE 180 SHUTDOWN AND CARE 1 Check the packing nut wet cup daily First relieve pressure see page 9 Be sure the wet cup is 1 3 full of TSL at all times to help prevent fluid...

Page 12: ...screen sepa rately and install the bowl without the screen to flush the bowl See Fig 7 3 Close the pressure drain valve 4 Pour one half gallon 2 liters of compatible solvent into a grounded metal pail...

Page 13: ...nds on the fan pattern of the tip you choose Do not try to increase coverage by increasing the fluid pressure Using the lowest pressure necessary to get the desired paint atomization will help prolong...

Page 14: ...oo low Increase pressure Pressure control frozen2 or damaged by over pressurization3 Try to thaw or replace pressure control Electric motor stops while spraying Power cord or extension cord unplugged...

Page 15: ...See page 11 Fluid supply is low or empty Refill and prime the pump See page 10 Check fluid supply often to prevent running the pump dry Static sparking from the gun Spray or work being sprayed is not...

Page 16: ...reverse order of removal Disassembly See Fig 15 except where noted 1 Remove and disassemble the intake valve 222 If no further service is needed reasemble the valve using a new gasket 206 Torque to 80...

Page 17: ...TO 19 FT LB 25 N M 223 DO NOT ALLOW THIS NUT TO MOVE RELATIVE TO THE PISTON 224 WHEN INSTALLING PISTON ONTO ROD 4 Torque the nut 214 against the rod 223 to 19 ft lb 25 N m Use two wrenches to maintain...

Page 18: ...or damaged 7 Clean and inspect the crankshaft B Wipe the crank shaft clean with a rag don t use solvent If the crank shaft is badly worn replace the drive assembly 55 as described on page 19 CAUTION...

Page 19: ...ft D 3 Remove the screws 55d and 55f and pull the drive housing A off the motor housing B 4 Remove the screws 55c and pull the motor housing B off the motor 5 Clean the gear 37 and inspect it for wear...

Page 20: ...ws 7 nuts 3 and lockwashers 4 Lift the motor while carefully guiding the wires through the connector 303 in the pressure control Remove the conduit 1 from wires See Fig 19 CAUTION Always pull the moto...

Page 21: ...the screws 7 lockwashers 4 and nuts 3 See Fig 20 5 Pull the pressure control 50 away from the conduit while carefully guiding the leads through the connec tor 303 one at a time See Fig 21 6 Remove th...

Page 22: ...stment however the sprayer pres sure must be temporarily increased above the normal working pressure Use a new 50 foot 15 2 m spray hose rated for at least 3000 PSI 210 BAR MAXIMUM WORKING PRESSURE wh...

Page 23: ...the pressure is higher than 2750 psi 190 bar Unplug the sprayer Relieve pressure Insert the wrench and tighten the pressure adjustment nut 1 8 turn or less and repeat steps 5 and 6 Repeat this pro ced...

Page 24: ...LABEL caution 1 308 100 072 NUT hex mscr 6 32 2 309 103 181 LOCKWASHER No 6 2 310 107 070 SCREW mach flat hd 6 32 x 5 8 2 311 178 797 LABEL warning 1 312 100 840 ELBOW street 1 4 npt f x m 1 313 157...

Page 25: ...sst 1 215 176 760 GUIDE ball sst 1 216 177 929 CYLINDER alloy steel 1 217 176 882 V PACKING polyethylene 3 218 176 997 V PACKING polyethylene 3 219 180 161 WASHER backup aluminum 1 220 180 073 GLAND...

Page 26: ...s both ends 1 53 215 903 BEARING ASSEMBLY 1 54 215 904 CONNECTING ROD ASSEMBLY 1 55 218 922 DRIVE ASSEMBLY includes replacement items 55a 55h 1 55a 104 008 LOCKWASHER spring 5 16 2 55b 106 115 LOCKWAS...

Page 27: ...12 313 302 84 Ref 52 47 122 123 119 46 95 99 97 132 7 Ref 40 50 SEE DETAIL BELOW 4 Ref No 23 Electric Motor Includes items 23a to 23g Ref No 55 Drive Assembly Includes items 55a to 55h Ref No 50 Press...

Page 28: ...IVE ASSEMBLY includes replacement items 55a 55h 1 55a 104 008 LOCKWASHER spring 5 16 2 55b 106 115 LOCKWASHER spring 3 8 4 55c 100 659 CAPSCREW soc hd 3 8 16 x 1 4 55d 100 657 CAPSCREW soc hd 5 16 18...

Page 29: ...127 50 25 40 Ref 312 313 302 84 Ref 52 47 122 123 120 119 46 95 50 Ref No 50 Pressure Control See page 23 for parts DETAIL 41 133 Ref 115 55c 55b 7 MODEL 220 679 Series C Basic Sprayer with LoBoy Cart...

Page 30: ...AT SEAL LIQUID Place in pump s wet cup to lubricate piston rod and packings 206 994 8 oz 0 5 liter 206 995 1 quart 1 liter 206 996 1 gallon 3 8 liter 206 997 4 gallon 16 liter SERVICE INFORMATION List...

Page 31: ...ted Parts Displacement Pump Carbon Steel Polyurethane Polyethylene Delrin Leather Filter Aluminum Carbon Steel Stainless Steel NOTE Delrin is a registered trademark of the DuPont Co DIMENSIONS Model 2...

Page 32: ...o the original purchaser transportation prepaid If inspection of the equipment does not disclose any defect in material or workmanship repairs will be made at a reasonable charge which charges may inc...

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