Graco 231–406, Series A Instructions-Parts List Manual

120 vac, 18a mark v texture sprayer 3000 psi (21.0 mpa, 210 bar) maximum working pressure

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INSTRUCTIONS-PARTS LIST
This manual contains important
warnings and information.
READ AND KEEP FOR REFERENCE.
INSTRUCTIONS
120 VAC, 18A
Mark V Texture Sprayer
3000 psi (21.0 MPa, 210 bar) Maximum Working Pressure
Model 231–406, Series A
Includes texture sprayer, 50 foot hose, 3 foot hose,
and texture spray gun
Patents Pending
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441
COPYRIGHT 1997, GRACO INC.
Graco Inc. is registered to I.S. EN ISO 9001
308–785
First choice when
quality counts.
Rev. A

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Summary of Contents for Graco 231–406, Series A

  • Page 1 Model 231–406, Series A Includes texture sprayer, 50 foot hose, 3 foot hose, and texture spray gun Patents Pending GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441 COPYRIGHT 1997, GRACO INC. Graco Inc. is registered to I.S. EN ISO 9001...
  • Page 2 ........Graco Phone Number .
  • Page 3 WARNING INJECTION HAZARD Spray from the gun, leaks or ruptured components can inject fluid into your body and cause extremely serious injury, including the need for amputation. Fluid splashed in the eyes or on the skin can also cause serious injury. Fluid injected into the skin is a serious injury.
  • Page 4 This equipment is for professional use only. Read all instruction manuals, tags, and labels before operating the equipment. Use the equipment only for its intended purpose. If you are uncertain about usage, call your Graco distributor. Do not alter or modify this equipment. Use only genuine Graco parts and accessories.
  • Page 5: Major Components

    Major Components Fig. 1 Motor (Under shield shown) DC motor, 120 Vac, 60 Hz, 18A, 1 phase Pressure Adjusting Knob Controls fluid outlet pressure ON/OFF Switch Power switch that controls 120 Vac power to sprayer Drive Assembly Transfers power from DC motor to the displacement pump Fluid Filter Filter of fluid between source and spray gun Secondary Fluid Outlet...
  • Page 6 3. Never install any shutoff device between the filter and the hose. See A, Fig. 2. 1. Connect gun (B) and 50 ft hose (C). Don’t install the spray tip yet. See Fig. 2. 2. Fill wet-cup (D) 1/3 full with Graco Throat Seal Fig 2 Liquid, supplied.
  • Page 7 Airless Operation WARNING WARNING FIRE AND EXPLOSION HAZARD INJECTION HAZARD To reduce the risk of fluids entering To reduce the risk of serious injury, control box, check weep hole (Fig.16, C) whenever you are instructed to relieve regularly. Replace o–ring when any pressure, follow the Pressure Relief leakage is seen.
  • Page 8: Pressure Relief Procedure

    Operation Pressure Relief Procedure Cleaning a Clogged Tip WARNING WARNING INJECTION HAZARD To reduce the risk of serious injury, PRESSURIZED EQUIPMENT HAZARD whenever you are instructed to relieve The system pressure must be manually pressure, follow the Pressure Relief relieved to prevent the system from Procedure.
  • Page 9: Shutdown And Care

    1. Check wet-cup (A) daily. See Fig 5. First relieve pressure and remove wet-cup plug. Keep wet-cup 1/3 full with Graco Throat Seal Liquid at all times to help prevent material from building up on piston rod which causes packings to wear prematurely.
  • Page 10 Flushing Use this category for flushing a brand new sprayer and flushing after storage. Flushing order: System has Next fluid to be Before you spray: this fluid in it: this fluid in it: sprayed: sprayed: Flush 1 Flush 2 Flush 3 Oil-based Oil-based fluid –...
  • Page 11 Flushing 7. Hold a metal part of gun firmly against metal waste 11. If you flushed with mineral spirits and are going to container. See preceding WARNING! Trigger gun, use a water-base material, flush with soapy water turn sprayer switch (F) on, and slowly increase and then clean water.
  • Page 12: Troubleshooting

    Troubleshooting WARNING INJECTION HAZARD To reduce the risk of serious injury, whenever you are instructed to relieve pressure, follow the Pressure Relief Procedure on page 8. Check everything in the guide before disassembling the sprayer. WHAT TO DO TYPE OF PROBLEM WHAT TO CHECK If check is OK, go to next check When check is not OK refer to this column...
  • Page 13 Troubleshooting TYPE OF PROBLEM WHAT TO CHECK WHAT TO DO If check is OK, go to next check When check is not OK refer to this column Follow Pressure Relief Procedure (Continued) Check for worn spray tip. Warning, then replace tip. See your Motor runs and pump strokes, but output is low or there is no separate gun or tip manual.
  • Page 14: Motor Brush Replacement

    Motor Brush Replacement 5. Inspect motor commutator for excessive pitting, WARNING burning or gouging. A black color on commutator is normal. Have commutator resurfaced by qualified ELECTRIC SHOCK HAZARD motor repair shop if brushes seem to wear too To reduce the risk of Electric Shock: wait fast.
  • Page 15 Motor Brush Replacement Spring must coil in this direction Minimum brush length: 0.4 in. Fig 8 01227 Fig 10 01227 Fig 9 01227...
  • Page 16: Displacement Pump

    4. Tighten packing nut/wet-cup just enough to stop again. Stop pump with piston rod in its lowest leakage, but no tighter. Fill wet-cup/packing nut 1/3 position, if possible. full with Graco TSL. 2. Remove hose (132). 3. Push retaining spring (35) up and push out pin (20).
  • Page 17 Motor 6. Tap rear of pump (39) with plastic mallet to loosen WARNING drive housing (18) from motor (1). Pull off drive housing. INJECTION HAZARD To reduce the risk of serious injury, NOTE: Do not drop the gear cluster (9), which may whenever you are instructed to relieve stay engaged in the motor bell or in the drive housing.
  • Page 18 Motor Seals (93) located inside conduit (22) Bronze colored washer Apply 6 oz. bearing grease Silver colored washer Fig 13...
  • Page 19: Pressure Control

    Pressure Control 8. Install pump pin and fan cover. CAUTION WARNING Do not install the pressure control until motor is checked. A defective motor may damage the pres- sure control. Make sure to test the motor prior to INJECTION HAZARD pressure control installation.
  • Page 20: Pressure Control Repair

    Pressure Control Seals (93) located inside conduit (22) Fig 15 Pressure Control Repair General Repair and Replacement 5. Install control housing (202) to motor control board (201) using screws (213) and lockwashers (214). WARNING Pressure Control Transducer and O–Ring INJECTION HAZARD Replacement To reduce the risk of serious injury, whenever you are instructed to relieve...
  • Page 21 Pressure Control Repair Torque to 150 in. lbs (17 N–m) Fig 16 2. Insert new o–ring (220) into bore (A) of motor 5. Carefully remove transducer and verify that o–ring control (201) at an angle so that forward facing is seated correctly and not pushed out of groove. If part of o–ring is below weep hole (C).
  • Page 22 Pressure Control Wiring GRN/YEL wire, E to housing ground BLACK wire, L to on/off sw–1 WHITE wire, N to on/off sw–4 Twisted pair Housing ground On/off sw Red wires to I1 and I2 on board WHITE wire on/off SW–5 to to L2 on Twisted pair board...
  • Page 23: Bearing Housing And Connecting Rod

    Bearing Housing and Connecting Rod WARNING INJECTION HAZARD To reduce the risk of serious injury, whenever you are instructed to relieve pressure, follow the Pressure Relief Procedure on page 8. Torque to 300 in-lb (34 n.m) NOTE: Stop the sprayer at the bottom of its stroke to get the crank (H) in its lowest position.To lower the Lubricate crank manually, rotate the blades of the motor fan with...
  • Page 24: Drive Housing

    Drive Housing 5. Remove screws (51) from drive housing. WARNING 6. Remove screws (30, 21) from motor (1). INJECTION HAZARD 7. Tap drive housing (18) with plastic mallet to loosen To reduce the risk of serious injury, from motor and pull straight off. whenever you are instructed to relieve pressure, follow the Pressure Relief NOTE: Do not drop the gear cluster (9), which may...
  • Page 25 Notes...
  • Page 26 Sprayer Parts Drawing 18b 9 (both sides) 37,124 58 11 22,93 Ref 37 Safety label Identification label 112 117 Information label Caution label...
  • Page 27 Sprayer Parts List Model 231–406, Series A Complete Sprayer with Gun Kit Includes items 1 – 142 Part No. Description Part No. Description 220–854 MOTOR KIT 108–691 PLUG, tubing 290–048 LABEL, identification, motor cover 108–460 CONNECTOR, conduit 290–047 LABEL, identification, motor cover 101–242 RETAINING RING 290–046...
  • Page 28 Pressure Control Parts List Torque to 150 in. lbs (17 N–m) To housing ground, Fig. 17. Located this point, inside housing WARNING! See Transducer Pressure Control and O–Ring Replacement on page 20 for corrrect replacement procedure. Fig 20...
  • Page 29 Pressure Control Parts List Part Number 239–750 Pressure Control Includes items 201 – 234 Part No. Description Part No. Description 239–750 PRESSURE CONTROL 192–144 SPACER, transducer 192–145 BRACKET, transducer See Ref. No. 130 on page 27 for location on 236–364 TRANSDUCER, pressure control Sprayer 239–751...
  • Page 30: Technical Data

    Fluid Outlet Size ....3/8 npsf from control Order the labels directly from your Graco Sound Data distributor. Sound pressure level ....
  • Page 31 Notes...
  • Page 32: Graco Warranty

    Graco distributor to the original purchaser for use. With the exception of any special extended or limited warranty published by Graco, Graco will, for a period of twelve months from the date of sale, repair or replace any part of the equipment determined by Graco to be defective.

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