Graco 233710 manual Control Board, Pressure Control Transducer, Pressure Adjust Potentiometer

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Pressure Control

Pressure Control

Control Board

Removal

1.

Relieve pressure; page 6.

2.Fig. 10. Remove four screws (11) and display/cover (12). Pull display connector wings open on PC board and pull display connector out.

3.Fig. 17. Disconnect at control board (147):

DLead (D) from potentiometer.

DLead (E) from transducer.

DRemove ON/OFF switch (51) at connector (A).

4.Fig. 10. Remove six screws (44) from control board (147) and green ground wire.

5.Remove connector (Ref 4) at backside of pressure control. Remove jam nut (147a) and control board (147).

Installation

When installing replacement control board, follow instructions with control board to set model type.

1.Fig. 10. Install control board (147) and jam nut (147a). Install connector (Ref 4) at backside of pressure control.

2.Install green ground wire and control board (147) with six screws (44).

3.Fig. 17. Connect to control board (147):

DConnect ON/OFF switch (51) connector (A).

DLead (E) to transducer.

DLead (D) to potentiometer.

4.Fig. 10. Push display connector into PC board close display connector wings on PC board. Install display/cover (12) with four screws (11).

Pressure Control Transducer

Removal

1.

Relieve pressure; page 6.

2.Fig. 10. Remove four screws (11) and display/cover (12).

3.Disconnect lead (E) from control board (147).

4.Remove two screws (141) and transducer guard (178) from control housing (8). Pull transducer connector through rubber grommet (176).

5.Remove pressure control transducer (100q) and o-ring (100p) from filter housing (100e).

Installation

1.Fig. 10. Install o-ring (100p) and pressure control transducer (100q) in filter housing (100e). Torque to 30–36 ft-lb.

2.Install transducer connector and rubber grommet

(176)in control housing (8) . Install transducer guard (178) on control housing with two screws

(141).

3.Connect lead (E) to control board (147).

4.Install display/cover (12) with four screws (11).

Pressure Adjust Potentiometer

Removal

1.

Relieve pressure; page 6.

2.Fig. 10. Remove four screws (11) and display/cover (12).

3.Disconnect lead (D) from control board (147).

4.Loosen set screws on potentiometer knob (13) and remove knob, shaft nut, lockwasher (22) and pressure adjust potentiometer (22).

5.Remove seal (78) from potentiometer (22).

Installation

1.Install seal (33) on potentiometer (22).

2.Fig. 10. Install pressure adjust potentiometer (22), shaft nut, lockwasher (22) and potentiometer knob (13).

a.Turn potentiometer shaft (22) clockwise to internal stop. Assemble potentiometer knob (13) to strike pin on plate (50).

b.After adjustment of step a., tighten both set screws in knob 1/4 to 3/8 turn after contact with shaft.

3.Connect lead (D) to control board (147).

4.Install display/cover (12) with four screws (11).

14309411

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Contents GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN INSTRUCTIONS-PARTS LIST5.5 HORSEPOWER, GASOLINE POWERED This manual contains importantCaution Symbol Table of ContentsWarning Symbol Warnings and CautionsRECOIL HAZARD SKIN INJECTION HAZARDTOXIC FLUID HAZARD 309411EQUIPMENT MISUSE HAZARD HAZARD OF USING FLUIDS CONTAINING HALOGENATED HYDROCARBONSFIRE AND EXPLOSION HAZARD Pump On/Off Switch Spray Gun Trigger LockReference your Spray Gun Manual Engine On/Off SwitchINJECTION HAZARD MaintenancePressure Relief Procedure SOLUTION TroubleshootingPROBLEM CAUSEUse larger diameter hose and/or reduce overall Thin fluid according to supplier’s recommendaRemoval Bearing Housing and Connecting RodInstallation 1 BDrive Housing ti1842a Pinion Assembly/Rotor/Shaft/Clutch/PulleyBottom View ti1888ati1853a 17. Page 10. Do Drive Housing, Installation0.12 ±.01 in. 3.0 ±.25 mm On/Off Switch ti1849aControl Board Pressure Adjust PotentiometerPressure Control Pressure Control TransducerDigital Display Messages After a fault, follow these steps to restart sprayerPressure Control Repair DISPLAYDisplacement Pump Repair309411 Parts - Basic Sprayer Model 233709, Series APUMP, displacement HOUSING, driveHOUSING, pinion HOUSING, bearingEngine Detail ti1846aRef No. 3 Drive Housing Assembly Parts List & Drawing - Pinion AssemblyRef No. 4 Pinion Housing Assembly Ref No. 4 andRef No Pressure Control Assembly Parts Drawing - SprayerPressure Control DISPLAY BOARD Wiring Diagram Parts List - SprayerVIEW A ON/OFF SWITCH DRIVE HOUSING PINION HOUSING CONTROL BOARD TRANSDUCERModel 233710 Parts List & Drawing -Clutch AssemblyParts - Complete Sprayer Contractor II Gun KitParts - Lo-Boy Suction Set Kit Technical DataDimensions DANGER LABELSFOR GRACO CANADA CUSTOMERS Graco Standard Warrantydistributor near you1-800-690-2894 Toll Free reserves right to make changes at any time without notice