Graco 231-042 Instructions-Parts List Manual
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Graco 231-042 Instructions-Parts List Manual

Graco 231-042 Instructions-Parts List Manual

120 vac, 15 amp airless paint sprayer
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INSTRUCTIONS–PARTS LIST
120 VAC, 15 AMP
Ultra 750 Airless Paint Sprayer
3000 psi (210 bar) Maximum Working Pressure
Model 231–033, Series D
This is a basic sprayer on an upright cart
and does not include a hose or a gun.
Model 231–042, Series B
This is a complete sprayer on an upright cart and
includes a hose, a gun, a RAC IV
Guard, and a SwitchTip .
Model 221–120, Series D
This is a basic sprayer on an loboy cart
and does not include a hose or a gun.
Model 221–130, Series B
This is a complete sprayer on an upright cart and
includes a hose, a gun, a RAC IV
Guard, and a SwitchTip .
U.S. PATENT NO. 4,323,741; 4,397,610
PATENTED 1983, CANADA
AND OTHER PATENTS PENDING
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441
This manual contains important
warnings and information.
READ AND RETAIN FOR REFERENCE
DripLess
Tip
DripLess
Tip
COPYRIGHT 1986, GRACO INC.
MODEL 231–042
307–786
Rev
H
Supersedes G
1359A

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Summary of Contents for Graco 231-042

  • Page 1 RAC IV DripLess Guard, and a SwitchTip . U.S. PATENT NO. 4,323,741; 4,397,610 PATENTED 1983, CANADA AND OTHER PATENTS PENDING 1359A MODEL 231–042 GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441 COPYRIGHT 1986, GRACO INC.

  • Page 2: Table Of Contents

    Place the German 186–042 label on the sprayer in the location shown at A. Greek 186–046 The labels are available directly from Graco, Korean 186–050 free of charge. Call 1–800–328–0211. FIRE AND...

  • Page 3: Pressure Control

    The pressure–sensing device and a current–overload cir- pump has a packing nut which, when filled with Graco cuit breaker with a manual–reset button. The pressure Throat Seal Liquid T(SL), helps prevent damage to the control regulates the motor speed.
  • Page 4 WARNINGS High Pressure Spray Can Cause Serious Injury. For Professional Use Only. Observe All Warnings. Read and understand all instruction manuals before operating equipment. FLUID INJECTION HAZARD General Safety Safety Latch Whenever you stop spraying, even for a moment, always set This equipment generates very high fluid pressure.
  • Page 5 Do property damage. not expose Graco hose to temperatures above 180 F (82 or below –40 F (–40 All fluid hoses must have spring guards on both ends! The...
  • Page 6 Avertissement La pulvérisation à haute pression peut causer des blessures très graves. Réservé exclusivement à l’usage professionnel. Observer toutes les consignes de sécurité. Bien lire et bien comprendre tous les manuels d’instructions avant d’utiliser le matériel. RISQUES D’INJECTION Consignes generales de sécurité Dispositifs de sécurité...
  • Page 7 RISQUES EN CAS DE MAUVAISE UTILISATION DU MATERIAL Consignes générales de sécurité Pression Toute utilisation anormale de l’appareil de pulvérisation ou des acces- Ce pulvérisateur peut produire une Pression Maximum De T ravail 210 soires comme, par exemple, la mise sous une pression excessive, bar (3000 lb/po2).
  • Page 8 ADVERTENCIA EL ROCIADO a ALTA PRESIÓN PUEDE CAUSAR GRAVES LESIONES. SOLO PARA USO PROFESIONAL. RESPETE LOS AVISOS DE ADVERTENCIA. Lea y entienda todo el manual de instrucciónes antes de manejar el equipo. PELIGRO DE INYECCION DE FLUIDO Seguridad general Aparatos de seguridad de la pistola pulverizadora Este equipo genera un fluido a una presión muy alta.
  • Page 9 PELIGRO POR MAL USO DEL EQUIPO Seguridad general Presión del sistema está pulverizadora puede desarrollar 210 barías (3000 psi) De Cualquier mal uso del equipo pulverizador o los accesorios, tal Presión De T rabajo Máxima . Asegurar que todo el equipo pul- como sobre presurización, modificación de piezás, uso de matériales y productos quimicos incompatibles, o utilización de verizador y sus accesorios tienen la capacidad para aguantar...
  • Page 10 NOTE: Refer to Fig. 2 while following this procedure. (210 bar) Maximum Working Pressure. 1. Fill the packing nut until it is 1/3 full with Graco Throat Seal Liquid (TSL). 2. Connect the gun, the 3 foot (0.9 meter) hose and the 50 foot (25.2 meter) hose.
  • Page 11 Setup 4. Plug in the sprayer. Turn off the switch (B). Plug 6. Prepare the paint according to the manufacturer’s the power cord into a grounded electrical outlet. recommendations. Remove the skin which may have formed on top of the paint. Stir the paint thor- 5.

  • Page 12: Operation

    Operation WARNING Use this procedure each time you start the sprayer to help ensure that the sprayer is ready to operate and To reduce the risk of static sparking and splashing that you start it safely. when flushing, always remove the spray tip from the gun and hold a metal part of the gun firmly to WARNING the side of a grounded metal pail.

  • Page 13: Maintenance

    Operation 6. Check all fluid connections for leaks. Relieve the b. If more coverage is needed, use a larger tip fluid pressure before tightening connections. rather than increasing the pressure. 7. Install the spray tip and tip guard. Lock the gun c.
  • Page 14 Shutdown and Care of the Sprayer WARNING CAUTION To reduce the risk of a serious injury, follow the To prevent serious damage to the pump, which can Pressure Relief Procedure on page 4 whenever result in poor sprayer performance and costly you are instructed to relieve the pressure.
  • Page 15 Flushing NOTE: Use this chart to determine the required order for flushing the sprayer. *Use this category for flushing a brand new sprayer and flushing after storage. System has Next fluid to be Flushing order: Follow this step before this fluid in it: this fluid in it: sprayed sprayed.

  • Page 16: Troubleshooting

    Troubleshooting WARNING To reduce the risk of a serious injury, follow the Pressure Relief Procedure on page 4 whenever you are instructed to relieve the pressure. Check everything in the charts before disassembling the sprayer. The sprayer will not operate. PROBLEM WHAT TO CHECK WHAT TO DO...
  • Page 17 The motor will not operate. PROBLEM WHAT TO CHECK WHAT TO DO If check is OK, go to next check When check is not OK refer to this column Remove the gun from 1. Check the leads from the bridge (308) to the 1.
  • Page 18 The motor will not operate. (Continued) PROBLEM WHAT TO CHECK WHAT TO DO If check is OK, go to next check When check is not OK refer to this column Condition B 6. Check the motor’s thermal cutout switch. Connect a 6.
  • Page 19 The fluid output is low. PROBLEM WHAT TO CHECK WHAT TO DO If check is OK, go to next check When check is not OK refer to this column The fluid output is low. 1. Check for worn spray tip. 1.
  • Page 20 There is no fluid output. PROBLEM WHAT TO CHECK WHAT TO DO If check is OK, go to next check When check is not OK refer to this column The motor operates and 1. Check paint supply. 1. Refill and reprime pump. the pump cycles.
  • Page 21 The motor is hot and operates intermittently. PROBLEM WHAT TO CHECK WHAT TO DO If check is OK, go to next check When check is not OK refer to this column The motor is hot and operates 1. Determine if sprayer was operated at high 1.
  • Page 22 Spin Test WARNING To reduce the risk of a serious injury, follow the Pressure Relief Procedure on page 4 whenever you are instructed to relieve the pressure. Use the spin test to check the armature, the motor windings, and the electrical continuity of the motor brushes.

  • Page 23: Bridge Test

    Bridge Test WARNING In Tests 4, 5 and 6, connect the + and – meter wires as indicated, check continuity, then switch the meter To reduce the risk of a serious injury, follow the wire connections and check continuity again. There Pressure Relief Procedure on page 4 whenever should be NO continuity one way and YES continuity you are instructed to relieve the pressure.

  • Page 24: General Repair Information

    General Repair Information WARNING These tools are needed for the repairs. To reduce the risk of a serious injury, follow the Phillips screwdriver Pressure Relief Procedure on page 4 whenever Small, flat–blade screwdriver you are instructed to relieve the pressure. Needle–nose pliers Plastic mallet Adjustable wrench...

  • Page 25: Motor Brush Replacement

    Motor Brush Replacement NOTE: Replace the brushes when they have worn to 10. Test the brushes. about 1/2 inch (10 mm) in length. Check both of the a. Remove the connecting rod pin (20) only. See brushes. A Brush Repair Kit, part number 220–853, page 36.

  • Page 26: Power Cord Replacement

    Power Cord Replacement WARNING To reduce the risk of a serious injury, follow the Pressure Relief Procedure on page 4 whenever you are instructed to relieve the pressure. NOTE: Refer to Fig. 15 for this procedure. 1. Relieve the pressure. 2.

  • Page 27: Circuit Breaker Replacement

    Bridge Replacement WARNING 4. Loosen but do not remove the screw (331A). Remove the screw (331B). Slide out the bridge. To reduce the risk of a serious injury, follow the Pressure Relief Procedure on page 4 whenever 5. Install the new bridge (308). Be sure the lock- you are instructed to relieve the pressure.

  • Page 28: Circuit Board Replacement

    Circuit Board Replacement WARNING Ç Ç Ç To reduce the risk of a serious injury, follow the É É Ç Ç Ç É É É É É É É É Pressure Relief Procedure on page 4 whenever É É you are instructed to relieve the pressure. NOTE: Refer to Fig.

  • Page 29: Pressure Control Replacement

    Pressure Control Replacement WARNING 7. Remove the conduit (1). To reduce the risk of a serious injury, follow the 8. Remove the three screws (8), lockwashers (10) Pressure Relief Procedure on page 4 whenever and nuts (11). Remove the pressure control. you are instructed to relieve the pressure.

  • Page 30: Pressure Control Adjustment

    Pressure Control Adjustment WARNING Use extreme caution when performing this adjustment procedure to reduce the risk of a fluid injection in- jury or other serious injury which can result from component rupture, electric shock, fire, explosion, or moving parts. This procedure sets the sprayer to 3000 psi (210 bar) Never try to increase the maximum working pressure Maximum Working Pressure and sets the overpres- beyond 3000 psi (210 bar) by performing these ad-...
  • Page 31 Pressure Control Adjustment 7. Turn the pressure–control knob (B) to the mini- 15. With the pressure–control knob at the minimum mum setting (fully counterclockwise).Turn on the setting, turn on the sprayer. sprayer. The pump should not cycle. See Fig. 16. Slowly turn the pressure–control knob (B) clock- wise to the maximum setting and hold it there.
  • Page 32 Bearing Housing and Connecting Rod Replacement 2. Remove the front cover (49). Disconnect the drain Pack the roller bearing with grease. hose (99) from the pump. Hold a wrench on the Oil the inner surface of the bearing housing. intake valve (223). Unscrew the suction tube. Dis- connect the hose (70).

  • Page 33: Drive Housing Replacement

    Drive Housing Replacement WARNING 4. Tap the lower–rear portion of the bearing housing (69) with a plastic mallet to loosen the bearing To reduce the risk of a serious injury, follow the housing from the drive housing (67). Pull the Pressure Relief Procedure on page 4 whenever bearing housing and the connecting rod straight off you are instructed to relieve the pressure.

  • Page 34: Motor Replacement

    Motor Replacement WARNING CAUTION To reduce the risk of a serious injury, follow the Always pull the motor leads one at a time to avoid Pressure Relief Procedure on page 4 whenever loosening the terminals, which could result in a bad you are instructed to relieve the pressure.
  • Page 35 Motor Replacement 15. Install the new motor (75). 19. Continue to reassemble the sprayer. Rotate the conduit (1) as you feed wires through the conduit. Install the seal (29) around the wires in the elbow 16. Apply high–quality bearing grease to the gear (51) (345) of the pressure control.

  • Page 36: Removing And Installing A Pump

    Fill the wet-cup/packing nut 1. Flush the pump. Relieve the pressure. Stop the 1/3 full with Graco TSL. See Fig. 29. pump with the piston rod (224) in its lowest posi- tion or carefully rotate the blades of the fan with a Torque the nut to screwdriver to lower the rod.

  • Page 37: Displacement Pump

    If the sleeve cannot be removed easily, return the sleeve and the cylinder to your Graco distributor for removal. 10. Screw the large nut (B) of the tool in to the top of the cylinder (19). Screw down the rod (A) to push the sleeve out of the cylinder.
  • Page 38 Displacement Pump Repair Reassemble the Pump. Torque the nut to 10.5 in-lb (1.2 n.m) to seat the packing. Loosen the nut and then lightly retighten. NOTES: Apply one drop of sealant t othese threads. Install the leather and plastic packings exactly as The lips of the V–packings must face up.
  • Page 39 Displacement Pump Repair 8. Stack the glands and packings in the top of the Leather packings. cylinder (219). Be sure to alternate the leather Poly packings. (207*) and plastic (213) v–packings and stack the The lips of these packings must face down. v–packings so the lips face down.

  • Page 40: Parts

    Parts – Upright Sprayer See page 44 for the pressure control parts. Ref 77 Ref 78 Ref 70 Ref 99...
  • Page 41 Parts – Upright Sprayer Model 231–033, Series D Model 231–042, Series B Includes items 1 – 99 Includes items 1 – 102 Basic Sprayer Complete Sprayer Part No. Description Part No. Description 065–099 ELECTRICAL CONDUIT 187–603 SLEEVE 183–995 COVER pecify length when ordering 110–963 SCREW, 183–365...

  • Page 42: Lo-Boy Sprayer

    Parts – Lo-Boy Sprayer See page 44 for the pressure control parts. LABEL 89 14 Ref 70 Ref 99...

  • Page 43: Pressure Control

    Parts – Lo-Boy Sprayer Model 221–120, Series D Model 221–130, Series B Includes items 1 – 99 Includes items 1 – 102 Basic Sprayer Complete Sprayer Part No. Description Part No. Description 065–099 ELECTRICAL CONDUIT 206–994 THROAT SEAL LIQUID, 8 OZ 214–570 FLUID FILTER pecify length when ordering...

  • Page 44: Parts - Pressure Control

    Parts – Pressure Control Pressure Control Assembly 220–455 Part numbers for items 17, 27, 29, 52, 71, 73a, 73b and 73c are shown in the drawings below and on page 45are given Includes all items listed below, except the terminals. on page 41 or 43.
  • Page 45 Parts – Wiring Diagram Circuit Board 218–405, 5 Wires 321 (75c) Ref 27,52 Blue White Black Yellow Green, Ground wire G Power cord Motor Thermal switch...

  • Page 46: Parts - Displacement Pump

    Parts – Displacement Pump Model 222–580, Series A Includes items 202 to 225 Part No. Description 209* 202* 110–165 PACKING, PTFE 203* 107–093 U–CUP SEAL, polyurethane 225* 204* 105–445 BALL 179–810 PLUG 1 206* 178–939 V–PACKING, leather 210* 207* 178–940 V–PACKING, leather 213* 208*...

  • Page 47: Technical Data

    Length ..26 in. (660 mm) 27 in. (686 mm) TO PLACE AN ORDER , contact your Graco distrib- Width ..22.5 in. (572 mm) 18 in. (457 mm)

  • Page 48: Manual Change Summary

    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 Ultra equipment proven...

This manual is also suitable for:

231-033Ultra 750221-120221-130

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