Graco 258906 Repair Manual
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Graco 258906 Repair Manual

Graco 258906 Repair Manual

Drywall feed pump
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Repair
Drywall Feed Pump
U.S. Patents Pending: 61/315,288; 61/315/322; 61/316,013; 61/316,010
READ ALL WARNINGS AND INSTRUCTIONS
Read all warnings and instructions in this manual.
Save these instructions.
Maximum Working Pressure 2500 psi (17.2 MPa, 172 bar)
Model 257100: 120V NA ETL Listed
Model 258906: 240V Euro Multicord
Model 258907: 110V UK, CE
Model 262288: 120V NA
Model 262300: 240V Euro CE Cord
Agency Approvals:
✓
✓
257100
258906
258907
✓
✓
262288
262300
- For water-based materials only -
- Not for use in explosive atmospheres -
- Not for use with quick-set materials -
✓
✓
✓
✓
✓
✓
3A0246C
ENG
ti14873a

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Summary of Contents for Graco 258906

  • Page 1 Read all warnings and instructions in this manual. Save these instructions. Maximum Working Pressure 2500 psi (17.2 MPa, 172 bar) Model 257100: 120V NA ETL Listed Model 258906: 240V Euro Multicord Model 258907: 110V UK, CE Model 262288: 120V NA Model 262300: 240V Euro CE Cord Agency Approvals: ✓...
  • Page 2 Use Graco conductive or grounded high-pressure airless material hoses. • Verify that all containers and collection systems are grounded to prevent static discharge.
  • Page 3 Do not kink or over-bend the hose. • Do not expose the hose to temperatures or to pressures in excess of those specified by Graco. • Do not use the hose as a strength member to pull or lift the equipment.

  • Page 4: Pressure Relief Procedure

    Pressure Relief Procedure Pressure Relief Procedure 1. Turn flow control knob to fully counterclockwise to OFF position. ti8793a 2. Place deflector in hopper or suitable container. 3. Turn prime valve handle to PRESSURE RELIEF position. 4. Display will read “----” when all pressure is relieved. ti14876a ti15614a 3A0246C...
  • Page 5 Drive and Bearing Housing NOTICE Do not drop gear cluster (17a) when removing drive housing (5a). Gear cluster may stay engaged in motor front end bell or drive housing. Removal 1. Perform Pressure Relief Procedure, page 4. 2. Remove Power Module, see page 7. 3.
  • Page 6 Drive and Bearing Housing Installation 1. Apply brown lithium grease supplied with drive housing kit (5) to gear cluster (17a) and inside of motor cavity. 2. Align orientation tab on gear housing with slot on motor and slide gears into motor. 3.

  • Page 7: Power Module

    Power Module Removal 1. Perform Pressure Relief Procedure, see page 4. Unplug power cord. 2. Release hopper adapter clamp (158). ti15684a 3. Loosen rod clamp knob (112) on front of pump mod- ule and push rod down. ti11675a 4. Lift and pull power module (153) off of unit. NOTE: Power module weighs approximately 85 lb.
  • Page 8 Pump Pump Removal 1. Perform Pressure Relief Procedure, see page 4. 2. Remove Power Module, see page 7. 3. Disconnect material hose (79) from pump (18a). ti15616a 4. Loosen two screws (40) and remove pump rod shield (48). ti15619a 5. Turn flow control knob to a very low setting and turn prime valve handle to TOOL FILL position (JOG mode will appear in display).
  • Page 9 3. Push pump up until pump threads engage. ti15924a 4. Screw in pump until threads are flush with drive housing opening. ti15621a 5. Align pump outlet to right side so that hose can be reassembled. 6. Screw jam nut up toward drive housing until nut stops.
  • Page 10 Motor Motor Removal 1. Perform Pressure Relief Procedure, see page 4. 2. Remove Power Module, see page 7. 3. Disconnect material hose (79) from pump (18a). ti15616a 4. Remove four screws (40) and lift motor shroud (98) off of motor. ti15624a 5.
  • Page 11 4. Attach bearing housing (9) to gear housing (5a) (slowly turn motor fan by hand to align gear into pump connecting rod). Torque four bearing housing screws (19) to 25-30 ft-lb. ti15630a 5. Replace motor/pump assembly into pump module. Replace and torque two screws (5b) underneath motor base plate to 200 - 220 in-lb.

  • Page 12: Motor Control Board

    Motor Control Board Motor Control Board Removal 120V Models: 1. Perform Pressure Relief Procedure, see page 4. Wait 5 minutes before servicing. 2. Remove Power Module, see page 7. 3. Disconnect material hose (79) from pump (18a). ti15616a 4. Remove four screws (40) and lift motor shroud (98) off of motor.
  • Page 13 11. Disconnect white power cord conductor (D) from motor control board (24). ti15851a 12. Disconnect black power lead (J) on motor control board (24) from ON/OFF switch. ti15849a 13. Remove ground screw (58) from motor control board/heat sink assembly. ti15846a 14.
  • Page 14 Motor Control Board 110 UK and 240V Models: 1. Perform Pressure Relief Procedure, see page 4. Wait 5 minutes before servicing. 2. Remove Power Module, see page 7. 3. Disconnect material hose (79) from pump (18a). ti15616a 4. Remove four screws (40) and lift motor shroud (98) off of motor.
  • Page 15 12. Remove top two screws (61) and control box (3). ti15912a 13. Disconnect transducer connector from motor control board (24). ti12999a 14. Disconnect three motor connectors from motor con- trol board to motor. ti15847a 3A0246C 15. Remove two screws (83) holding motor control board / heat sink assembly to power module frame.
  • Page 16 Motor Control Board Installation 120V Models: 1. Use acetone or equivalent cleaner to thoroughly remove thermal paste from pockets on heat sink. 2. Apply new thermal paste into both pockets of heat sink. 3. Replace two inner screws and washers to control board and torque to 17 in-lb.
  • Page 17 10. Connect black power lead (J) on motor control board to ON/OFF switch. ti15849a 11. Connect white power cord conductor (D) to motor control board (24). ti15851a 12. Connect 15/20A switch connector (X) to motor con- trol board (24). ti15850a 13.
  • Page 18 Motor Control Board 110 UK and 240V Models: 1. Use acetone or equivalent cleaner to thoroughly remove thermal paste from pockets on heat sink. 2. Apply new thermal paste into both pockets of heat sink. ti14693a 3. Replace two inner screws and washers to control board and torque to 17 in-lb.
  • Page 19 11. Connect potentiometer connector (C) to motor con- trol board (24). ti15791a 12. Connect Prime/Tool Fill/Recirculate reed switch con- nector (E) to motor control board (24). ti13572a 13. Replace control panel (37) and tighten bottom two screws (61). Torque to 30-35 in-lb. 14.
  • Page 20 Prime Valve Handle Prime Valve Handle Removal 1. Perform Pressure Relief Procedure, see page 4. Wait 5 minutes before servicing. 2. Use 3/32 in. punch and hammer to tap out handle pin (72c) (pliers may be required to pull out handle pin).

  • Page 21: Pressure Transducer

    Pressure Transducer Removal 1. Perform Pressure Relief Procedure, see page 4. Wait 5 minutes before servicing. 2. Remove four screws (33b) and cover (33k). ti15786a 3. Disconnect transducer connector (E) from motor control board (24). ti12999a 4. Disconnect potentiometer connector (D) and reed switch connector (87) from motor control board (24).
  • Page 22 Pressure Transducer 2. Connect transducer connector (E) and reed switch connector to control board (24). ti12999a 3. Install control box (3) and control panel (37) with four screws (61). Torque to 30 - 35 in-lb. ti15797a 4. Connect potentiometer connector (D) and reed switch connector (87) to control board (24).
  • Page 23 Flow Control Adjust Potentiometer Removal 1. Perform Pressure Relief Procedure, see page 4. Wait 5 minutes before servicing. 2. Remove four screws (33b) and cover (33k). ti15786a 3. Remove bottom two screws (61) and remove control panel (37). ti15795a 4. Disconnect potentiometer connector (D) from motor control board (24).
  • Page 24 Flow Control Adjust Potentiometer 4. Replace control panel (37) and tighten bottom two screws (61). Torque to 30-35 in-lb. ti15795a 5. Connect display connector (A) to motor control board (24). ti13569a 6. Install cover (33k) with four screws (33b). Torque to 30-35 in-lb.
  • Page 25 Prime/Tool Fill/Recirculation Reed Switch Removal 1. Perform Pressure Relief Procedure, see page 4. Wait 5 minutes before servicing. 2. Remove four screws (33b) and remove display cover (33k). ti15786a 3. Remove bottom two screws (61) and remove control panel (37). ti15795a 4.

  • Page 26: Digital Display

    Digital Display Digital Display Removal 1. Turn off unit. Wait 5 minutes before servicing. 2. Remove four screws (33b) and remove display cover (33k). ti15786a 3. Unplug display board connector from motor control board (24). ti13569a Installation 1. Plug display board connector (A) into motor control board (24).

  • Page 27: Changing The Needle

    Inline Valve Changing the Needle Removal NOTE: Needle (404b), housing/seat (404c), and o-ring (404a) must be replaced together. They are included in repair kit 24F263. 1. Perform Pressure Relief Procedure, see page 4. 2. Squeeze trigger while unscrewing housing/seat (404c) and o-ring (404a). 404a 404c ti15626a...

  • Page 28: Replacing The Battery

    Inline Valve Needle Adjustment 1. Engage inline valve (135) with safety latch. Hold inline valve with nozzle straight up. 2. Hold your finger against trigger (410) with light pres- sure. Use a 5/16 open-ended wrench to turn locknut (414) clockwise until you feel trigger lift slightly. 3.
  • Page 29 Parts Ref. Part Description 120211 RING, retaining, e-ring 15C799 ROD, clamp 104430 PIN, cotter 15C797 BRACKET, swivel 101566 NUT, lock 100004 SCREW, cap, hex HD 15D306 PLUG, adapter, hopper, texture 121458 TIE, lanyard 100333 SCREW, cap, hex HD 16C298 FILTER, hopper 257133 HOSE, cpld, 1/2 in.
  • Page 30 Parts Pump Module Parts ti15643a 3 ref 71 72b 3A0246C...

  • Page 31: Pump Module Parts List

    16D004 LABEL, drywall dump valve indent 16D640 GASKET, control 16D624 SHIELD, base, painted 16C681 LABEL, no weight & no step 16E335 LABEL, graco 15U014 LABEL, cap 16D653 LABEL, drywall warning label 15Y118 LABEL, Made in the USA 116876 WASHER, flat...
  • Page 32 Parts Inline Valve Parts 24F538 408c 408b 404c 408a Ref. Part Description 15Y164 HOUSING, fluid 179733 SEAL, sleeve 15Y204 FLUID, tube 24F263 KIT, inline valve needle and seat 404a 104444 PACKING, o-ring 404b NEEDLE, gun, assembly 404c 257590 HOUSING, seat, .188 orifice 406†...
  • Page 33 Box Slide Parts 24F463 505b 505a Ref. Part Description 258993 BASE, hinge assembly 16D718 LID, slide control 15X949 BATTERY, CR123A, lithium, 3 volt 24F260 KIT, battery cap 505a CAP PLUG, battery 505b 108284 PACKING, o-ring C20272 PACKING, o-ring 16D761 NUT, battery cap 256228 CONTROL, board, transmitter 101855 SCREW, tapping, pnhd 16D933 SWITCH, dual in-line reed...

  • Page 34: Wiring Diagrams

    Wiring Diagrams Wiring Diagrams 100-120 VAC NA Units Thermal Switch Motor Motor Leads Motor Sensor Leads Green/Ground Digital Display Control Board Black Green/Ground Potentiometer Pressure Transducer Black Prime/Fill Tool Reed switch 20A/15A Switch ON/OFF Switch White Black ti14889a 3A0246C...
  • Page 35 100-120 VAC UK Thermal Switch Motor Motor Leads Motor Sensor Leads Green/Ground 3A0246C Digital Display Control Board Black Blue Blue Brown Brown Green/Ground Wiring Diagrams Potentiometer Pressure Transducer Black Prime/Fill Tool Reed switch Blue ti15686a...
  • Page 36 Wiring Diagrams 220-240 VAC Units Thermal Switch Motor Motor Leads Motor Sensor Leads Blue Green/Ground Digital Display Control Board Black Blue Brown Brown Potentiometer Pressure Transducer Black Prime/Fill Tool Reed switch Blue ti15685a 3A0246C...
  • Page 37 Technical Data (Unit) Power requirements: Models 257100, 262288 Models 258906, 262300 Model 258907 Motor HP (W) Maximum fluid working pressure Hopper capacity Maximum delivery with texture material Maximum hose length Fluid outlet size Dimensions Length Width Height Weight (with hoses and applicator)
  • Page 38 Notes Notes 3A0246C...
  • Page 39 Notes Notes 3A0246C...

  • Page 40: Graco Standard Warranty

    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.

This manual is also suitable for:

257100262300258907262288

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