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Technical Data

Power Requirements

120 VAC,60Hz,

. . . . . . . . . . . . . . . . . . . . 

1 phase, 15 amp minimum

Generator

3000 Watt minimum

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Working Pressure Range

0–2750 psi (0 – 195 bar)

. . . . . . . . . 

Motor

3/4 hp

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

Cycles/Gallon (liter)

620 (164)

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Delivery

0.50 gpm (1.9 lpm)

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Tip Size

one gun to new 0.023 tip

. . . . . . . . . . . . . . . . . . . . . . . . 

with latex at  2000 psi (138 bar)

Power Cord

No. 14 AWG, 3 wire, 6’ (1.8 m)

. . . . . . . . . . . . . . . 

Inlet Paint Strainer

12 mesh (1525 micron)

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Stainless Steel Screen, reusable

Pump Inlet Size

1/2 npt(f)

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Fluid Outlet Size

1/4 npsm

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Wetted Parts:

Displacement Pump

Stainless steel, Carbon steel,

. . . . . . . 

    PTFE,

Aluminum, Polyethylene, Delrin

, Leather

NOTE: Delrin

 trademarks of the DuPont Company

.

05178

DANGER LABELS

The English language DANGER label shown on
page 1 is also on your sprayer. If you have paint-
ers who do not read English, order one of the fol-
lowing labels to apply to your sprayer. The draw-
ing below shows the best placement of these la-
bels for good visibility.

Order the labels directly from Graco, free of
charge: 1–800–328–0211

French

185–956

Spanish

185–961

German

186–041

Greek

186–045

Korean

186–049

English

185–953

Apply other
language here

Dimensions

Model 820–169

Model 820–248

Weight (dry w/o packaging)

37 lb (17 kg)

47 lb (21.4 kg)

Height

19 in. (483 mm)

29.5 in. (749 mm) Handle down
39.5 in. (1003 mm) Handle up

Length

15 in. (381 mm)

21 in. (533 mm)

Width

14 in. (356 mm)

20.5 in. (521 mm)

The Graco Warranty and Disclaimers

WARRANTY
Graco warrants all equipment manufactured by it and bearing its name to be free from defects in material and workmanship on the date of sale by
an authorized Graco distributor to the original purchaser for use. As purchaser’s sole remedy for breach of this warranty, Graco will, for a period of
twelve months from the date of sale, repair or replace any part of the equipment proven defective, with the exception of defects in parts on the drive
train/gear box on EM and GM sprayers or power train on EH and GH sprayers, which will be repaired or replaced for twenty-four months from the
date of sale for Gas–Hydraulic (GH) and Gas-Mechanical (GM) sprayers and for thirty-six months from the date of sale for Electric-Mechanical
(EM), Electric-Hydraulic (EH), 390st and 490st sprayers. This warranty applies only when the equipment is installed, operated and maintained in
accordance with Graco’s written recommendations.

This warranty does not cover, and Graco shall not be liable for, any malfunction, damage or wear caused by faulty installation, misapplication, abra-
sion, corrosion, inadequate or improper maintenance, negligence, accident, tampering, or substitution of non–Graco component parts. Nor shall
Graco be liable for malfunction, damage or wear caused by the incompatibility with Graco equipment of structures, accessories, equipment or mate-
rials not supplied by Graco, or the improper design, manufacture, installation, operation or maintenance of structures, accessories, equipment or
materials not supplied by Graco.

This warranty is conditioned upon the prepaid return of the equipment claimed to be defective to an authorized Graco distributor for verification of
the claim. If the claimed defect is verified, Graco will repair or replace free of charge any defective parts. The equipment will be returned to the origi-
nal 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 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 warranties (express or implied), including
warranty of merchantability or warranty of fitness for a particular purpose,
 and of any non–contractual liabilities, including product liabilities,
based on negligence or strict liability. Every form of liability for direct, special or consequential damages or loss is expressly excluded and denied. In
no case shall Graco’s liability exceed the amount of the purchase price. Any action for breach of warranty must be brought within two (2) years of
the date of sale.

EQUIPMENT NOT COVERED BY GRACO WARRANTY
Graco makes no warranty, and disclaims all implied warranties of merchantability and fitness for a particular purpose, with respect to accesso-
ries, equipment, materials, or components sold but not manufactured by Graco. These items sold, but not manufactured by Graco (such as electric
motor, switches, hose, etc.) are subject to the warranty, if any, of their manufacturer. Graco will provide purchaser with reasonable assistance in
making any claim for breach of these warranties.

Sales Offices: Atlanta, Chicago, Detroit, Los Angeles

Foreign Offices: Belgium; Canada; England; Korea; Switzerland; France; Germany; Hong Kong; Japan

GRACO INC.

P.O. BOX 1441

MINNEAPOLIS, MN

55440–1441

PRINTED IN U.S.A.

 November, 1992; Revised June, 1995

Summary of Contents for 820-169 Series B

Page 1: ...Complete sprayer with hose gun RAC IV DripLess Tip Guard and SwitchTip Model 820 248 Series A Upright cart complete sprayer with hose gun RAC IV DripLess Tip Guard and SwitchTip The SHERWIN WILLIAMS...

Page 2: ...he instructions Caution Symbol CAUTION This symbol alerts you to the possibility of damage to or destruction of equipment if you do not follow the instructions FIRE AND EXPLOSION HAZARD Improper groun...

Page 3: ...o cause serious injury Fluid injected into the skin is a serious injury The injury may look like just a cut but it is a serious injury Get immediate medical attention Do not point the gun at anyone or...

Page 4: ...80 F or below 40 C 40 F Do not lift pressurized equipment Comply with all applicable local state and national fire electrical and safety regulations WARNING WARNING INSTRUCTIONS Liquids can be injecte...

Page 5: ...uid to be sprayed through spray gun G 50 ft 15 m Main Hose 1 4 in ID grounded nylon hose with spring guards on both ends H RAC IV Tip Guard Reverse A Clean RAC tip guard reduces the risk of fluid inje...

Page 6: ...co Throat Seal Liquid TSL supplied Install the wet cup seal 3 Plug in the sprayer Be sure the ON OFF switch 52 is OFF Plug the cord into a 15A grounded outlet at least 20 feet away from the spray area...

Page 7: ...p If the valve senses an over pressure condition it opens automati cally to relieve fluid pressure If this happens stop spraying immediately shut off and unplug the sprayer Determine the cause of the...

Page 8: ...e Fig 6 Clean the front of the tip frequently during the day s operation First follow the Pressure Relief Procedure on page 9 Fig 6 Tip handle shown in spraying position Turn handle 180 trigger gun to...

Page 9: ...r following the steps above VERY SLOWLY loos en the tip guard retaining nut or hose end coupling to relieve pressure gradually then loosen completely Now clear the tip or hose obstruction Startup Proc...

Page 10: ...the gun safety latch 10 Install the spray tip and tip guard Install the spray tip If you are using the RAC IV tip guard refer to manual 307 848 for installation instruc tions 11 Adjust the spray patte...

Page 11: ...rs of operation Remove the front cover Fill the bearing housing cavity A with SAE 10 non detergent oil See Fig 10 5 Flush the sprayer at the end of each work day and fill it with mineral spirits to he...

Page 12: ...en Clean the screen separately 3 Pour one half gallon 2 liters of compatible solvent into a grounded metal flushing pail Put the suction hose in the pail 4 Open the pressure drain valve See Fig 4 page...

Page 13: ...d secure with spring retainer 3 Check for motor damage Remove drive hous ing assembly 11 See page 27 Try to rotate motor fan by hand 3 Replace motor 4 if fan won t turn See page 25 Electrical 1 Check...

Page 14: ...and connect volt meter between exposed terminal on switch and power cord s white wire Plug in sprayer and turn ON Meter should read 105 125VAC Turn off and unplug sprayer 10 Replace ON OFF switch See...

Page 15: ...from transducer is normal 1 Periodically remove residue from its cyl inder port See page 30 No output motor runs and pump strokes 1 Check paint supply 1 Refill and reprime pump 2 Check for clogged int...

Page 16: ...wires 2 Check for missing motor brush inspection plate gasket see page 17 bent terminal forks or other metal to metal contact points which could cause a short 2 Correct faulty conditions 3 Check motor...

Page 17: ...y hand If there are no shorts the motor will coast two or three revolutions before coming to a complete stop If the motor does not spin freely the armature is shorted and the motor must be re placed S...

Page 18: ...re operating the sprayer WARNING HOT SURFACE HAZARD During operation the motor and drive housing become very hot and could burn your skin if touched Flammable materi als spilled on the hot bare motor...

Page 19: ...e spring clip See Fig 14 3 Slide off the brush lead terminal E off the blade connector Remove the old brush C See Fig 14 Fig 14 F G E D C B H 1 1 Motor lead do not disconnect 2 Minimum 0 5 12 5 mm 038...

Page 20: ...eed d Inspect the brush and commutator contact area for excessive arcing Arcs should not trail or circle around the commutator surface WARNING MOVING PARTS HAZARD Do not touch the brushes leads spring...

Page 21: ...move the pump 20 Installing the pump See Fig 16 and 17 1 Mount the pump on the drive housing Tap it into the alignment pins with a soft hammer Tighten the screws 21 to 50 ft lb 68 N m WARNING MOVING P...

Page 22: ...end wrench to loosen the nut 110 and then unscrew the piston valve 108 7 Remove all parts from the piston valve 108 Reassembling the pump NOTE Alternate plastic and leather packings See Fig 18 The lip...

Page 23: ...d damaging the packings by overtightening 6 Hand tighten the valve into the piston rod just until the nut 110 contacts the rod See Fig 20 7 Place the flats of the rod 107 in a smooth jaw vise 8 CAREFU...

Page 24: ...ylinder 115 into manifold 101 to 53 ft lb 71 N m Torque intake valve 116 into cylinder 115 to 53 ft lb 71 N m 1 2 3 4 Piston assembly 4 14 Place the ball guide 120 stop pin 122 and ball 121 in the cyl...

Page 25: ...the three drive housing screws and lockwashers 19 6 Also see Fig 25 6 Remove the two motor screws 5 and the lock washers 6 7 Tap the lower rear of the drive housing 11 with a plastic mallet to loosen...

Page 26: ...56 and lower the junction box 59 3 Disconnect the power supply cord leads including the green wire to the grounding screw 49 4 Loosen the strain relief bushing 51 Remove the power supply cord 50 5 Ins...

Page 27: ...lose the thrust balls 11a or 4a or let them fall between the gears which will damage the drive housing if not removed The balls which are heav ily covered with grease usually stay in the gear re cesse...

Page 28: ...g Rod Crankshaft 02840 Fig 28 1 Torque to 80 in lb 9 N m 3 2 Quantity of three Quantity of one Apply a total of 3 fl oz 29 cc of grease to gears 4 56 6 19 15 13 64 11 5 6 12a 12 12b 59 11a 4a A 34 31...

Page 29: ...tip the pressure control 64 forward and up to detach it from the drive housing 11 4 Guide the harness A through the motor and drive housing and remove the pressure control 5 Guide the harness of the n...

Page 30: ...Use a pull twist motion to remove the transducer 29 from the pump manifold 101 3 Clean paint residue from the hole in the manifold do not scratch the surface of the hole 4 Lightly apply oil to the o r...

Page 31: ...ngage and the hose will separate from the tube 3 Replace the o ring 27 if it is worn or damaged 4 Lubricate the o ring 27 and the inlet tube 38 threads with light grease 5 Align the suction hose coupl...

Page 32: ...or seat area 2 If replacing the gasket 42a or seat 42b pry out the gasket NOTE Whenever the gasket 42a is removed re place it with a new one 3 Coat the o ring 42d with grease Press the stem into the v...

Page 33: ...979 CYLINDER pump 1 116 820 617 PACKING o ring PTFE 1 117 820 972 NUT jam 1 3 8 18 unef 2b 1 118 820 975 INLET VALVE 1 119 820 969 PACKING o ring PTFE 1 120 820 289 GUIDE ball 1 121 820 277 BALL 1 2 i...

Page 34: ...16 45 37 29 32 25 12b 12a 64 30 5 19 6 17 31 34 21 38 36 46 4 39 28 56 43 42 42a 42b 4e 44 REF 32 REF 33 11 23 63 67 74 42c 42d 11b 14 4g INSIDE LABEL 35 OUTSIDE LABEL 4f See detail on page 35 24 1 2...

Page 35: ...ON HOSE TUBE 1 33 820 898 DRAIN HOSE 1 34 820 899 SCREW filh 8 32 x 2 1 2 3 35 820 172 LABEL identification 1 36 820 900 ADAPTER tube 9 16 18 1 37 820 901 LEG sprayer 2 38 820 902 INLET TUBE 1 39 820...

Page 36: ...20 4a 12 18 15 16 45 37 29 32 12b 12a 64 30 5 19 6 17 31 34 21 36 46 4 39 28 56 43 42 42a 42b 4e 44 11 63 67 74 42c 42d 11b 14 4g INSIDE LABEL 35 OUTSIDE LABEL 4f 24 1 1 1 89 50 13 66 11a 3 6 23 62 2...

Page 37: ...820 899 SCREW filh 8 32 x 2 1 2 3 35 820 172 LABEL identification 1 36 820 579 CONNECTOR tube 1 37 820 469 RING retaining wheel 2 39 821 026 STRAINER 1 42 820 904 DRAIN VALVE KIT 1 Includes items 42a...

Page 38: ...Notes...

Page 39: ...Notes...

Page 40: ...le for any malfunction damage or wear caused by faulty installation misapplication abra sion corrosion inadequate or improper maintenance negligence accident tampering or substitution of non Graco com...

Page 41: ...67 820 474 25 PLUG tubing Replaced by 820 558 821 066 26 WHEEL sprayer Replaced by 820 333 820 403 30 CLIP spring Replaced by 820 344 821 067 32 SUCTION TUBE Replaced by 821 030 820 916 50 POWER CORD...

Page 42: ...f adhesive supplied to the threads To Apply one strip of adhesive supplied to the threads Change first instruction in step 8 From CAREFULLY tighten the nut 110 against the piston rod to 19 ft lb 25 N...

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