Graco 248800 Repair Manual Download Page 1

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Graco Inc.,

PO Box 1441, Minneapolis, MN 55440-1441

Graco Inc. is registered to I.S. EN ISO 9001

310824C

Repair

390

™

Airless Sprayer

- For portable spray applications of architectural paints and coatings -

3300 psi (22.7MPa, 227bar) Maximum Working Pressure

*all models not available in all countries

IMPORTANT SAFETY INSTRUCTIONS!

Read all warnings and instructions.

Save these instructions. Contact Graco Customer Service

or your local Graco distributor to obtain a manual in your language.

Model #*

VAC

Country

248800 / 248802 / 826055

120

North America

✔

248804 / 248806

240

Europe / Europe

multicord

✔

248808

240

Asia / Australia

✔

248810

110

✔

TIA

ti5634a

Related Manuals

310820

309639

309250

310876

Summary of Contents for 248800

Page 1: ...Working Pressure all models not available in all countries IMPORTANT SAFETY INSTRUCTIONS Read all warnings and instructions Save these instructions Contact Graco Customer Service or your local Graco d...

Page 2: ...old Replacement 23 Power Cord Replacement 24 Motor Replacement 25 Wiring Diagram 26 Technical Data 27 Graco Standard Warranty 29 Graco Information 30 Manual Conventions Note WARNING WARNING a potentia...

Page 3: ...tions Use only grounded hoses Hold gun firmly to side of grounded pail when triggering into pail If there is static sparking or you feel a shock stop operation immediately Do not use equipment until y...

Page 4: ...olvents or fluids containing such solvents in pressurized aluminum equipment Such use can cause serious chemical reaction and equipment rupture and result in death serious injury and property damage B...

Page 5: ...E H B A D J F ti5636b N M P R S C G Item English A Pressure Control B ON OFF switch C Pressure Gauge not on all models D Power Cord E Fluid Outlet F Prime Valve G Cord Wrap H Pump J Suction Hose K Dra...

Page 6: ...240V 3 wire 16 AWG 1 0 mm2 minimum 300 ft 90 m maximum length Spray gun ground through connection to a properly grounded fluid hose and pump Fluid supply container follow local code Solvent and Oil ba...

Page 7: ...s not been fully relieved after following the steps above VERY SLOWLY loosen tip guard retaining nut or hose end coupling to relieve pressure gradually then loosen completely Clear hose or tip obstruc...

Page 8: ...4 WARNING Flammable materials spilled on hot bare motor could cause fire or explosion To reduce risk of burns fire or explosion do not operate sprayer with cover removed WARNING To reduce risk of ser...

Page 9: ...ilter Refer to gun instruction manual 309639 Basic Mechanical 1 Pump frozen or hardened paint Thaw sprayer if water or water based paint has frozen in sprayer Place sprayer in warm area to thaw Do not...

Page 10: ...nals Securely recon nect leads 6 Motor thermal switch Yellow motor leads must have continuity through thermal switch Replace motor See page 26 Motor Replace ment 7 Brush cap missing or loose brush lea...

Page 11: ...sion cord See page 6 Grounding and Electric Requirements 8 Leads from motor to circuit board for damaged or loose wire con nectors Inspect wiring insulation and terminals for signs of over heating Be...

Page 12: ...acement 2 Connecting rod assembly for damage Replace connecting rod assembly See page 13 Displacement Pump Replacement 3 Gears or drive housing Inspect drive housing assembly and gears for damage and...

Page 13: ...and remove the high pressure hose 14 4 Cycle pump until pin 32 is in position to be removed 5 Disconnect power cord from outlet 6 Using a flat screwdriver push retaining spring C up Push out pump pin...

Page 14: ...7 Screw jam nut 11 up onto pump until nut stops Tighten jam nut by hand then tap 1 8 to 1 4 turn with a 20 oz maximum hammer to approximately 75 ft lb 102 N m 8 Install suction tube 35 and high pressu...

Page 15: ...rease to gears and needle bearing surfaces Install thrust bearing 4 and gears 2 and 3 in front endbell housing 2 Push drive housing into front endbell housing Insert gear crank 3 through hole in conne...

Page 16: ...s If motor does not spin freely armature is shorted Replace motor page 26 Armature Brushes and Motor Wiring Open Circuit Test Continuity 1 Connect red and black motor leads with test lead Turn motor f...

Page 17: ...shroud 29 3 Remove spring clip 101 on back of motor 4 Pull off fan 100 Installation 1 Slide new fan 100 in place on back of motor Be sure blades of fan face motor as shown 2 Install spring clip 101 3...

Page 18: ...Orient each cap with the 2 projections on either side of the brush lead You will hear a snap when cap is securely in place 3 Using a wire stripper strip off wire insulation approx imately 1 4 inch 6 m...

Page 19: ...s 30 securing control board to housing 2 are located on the front and one on the back next to the power cord 6 Pull control board out slightly and then slide it back and off of frame 7 Remove grommet...

Page 20: ...0V blue and brown on control board 33 3 Carefully slide control board back into place on the side of the motor frame 4 Replace 3 screws 30 Torque to 30 35 in lbs 3 4 3 9 N m 5 Reattach motor connector...

Page 21: ...ge 7 Disconnect power cord from outlet 2 Remove two screws 30 and shroud 29 3 Remove fuse from control board 4 Remove spare fuse from motor Installation 1 Replace fuse on control board with spare fuse...

Page 22: ...g faces toward motor 2 Apply loctite to pressure control assembly threads 16 3 Screw pressure control assembly 16 into manifold and torque to 150 in lbs 17 0 N m 4 Wrap wires around knob and feed thro...

Page 23: ...rol Assembly Replacement page 22 9 Remove two screws 6 to disconnect Manifold from housing Installation 1 Position manifold on sprayer frame 2 Replace screws 6 and torque to 150 in lbs 17 N m 3 If rem...

Page 24: ...ed fitting 20 from manifold Installation 1 Screw barbed fitting 20 into manifold 2 Push drain line 40 onto barbed fitting 20 If you are only replacing the manifold and will be reusing the existing bar...

Page 25: ...1 Installation 1 Follow Control Board Replacement installation instructions steps 1 4 page 19 2 Reconnect green ground wire G to green ground ing screw 31 on frame Be sure terminal on ground faces UP...

Page 26: ...frame 45 with four screws 6 2 Install manifold 15 with two screws 6 Manifold Replacement page 23 3 Install control board 33 with three screws 30 Connect all leads to board See Control Board Replaceme...

Page 27: ...Assembly Power Plug White Green Black from Motor 2 x Yellow ON OFF Switch ti5643a Capacitor Replaceable Fuse Black Power Plug Blue Green Brown ON OFF Switch Pressure Control Assembly Red from Motor 2...

Page 28: ...ar Cycles per gallon liter 680 180 Maximum delivery gpm lpm 0 43 1 6 Maximum tip size 0 020 Fluid outlet npsm 1 4 in Dimensions Length 15 75 in 40 0 cm Width 14 0 in 36 0 cm Height 17 in 43 0 cm Weigh...

Page 29: ...s of parts labor and transportation THIS WARRANTY IS EXCLUSIVE AND IS IN LIEU OF ANY OTHER WARRANTIES EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO WARRANTY OF MERCHANTABILITY OR WARRANTY OF FITNESS...

Page 30: ...ll written and visual data contained in this document reflects the latest product information available at the time of publication Graco reserves the right to make changes at any time without notice G...

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