Graco Inc 695 Premium Hi-Boy, 795 Premium Hi-Boy, 3A0157A, 1095 Premium Hi-Boy Step

Page 20

Troubleshooting

110-120 AC

V

-

STEP 1:

Plug power cord in and turn switch ON. Connect wires to control board and on/off switch. Turn meter to AC Volts.

110-120 AC

V

-

STEP 2:

Plug power cord in and turn switch ON. Connect wires to control board and on/off switch. Turn meter to AC Volts.

100k ohm

-

STEP 3:

Check motor thermistor. Unplug yellow wires. Meter should read according to Resistance Table on page 17. NOTE: Motor should be cool during reading.

-

 

 

 

Thermal

 

 

-

 

 

 

Black

 

 

Black

Switch

 

 

 

On/Off

+

On/Off

 

+

Switch

 

 

Switch

White

 

White

 

 

Black

 

Black

Motor

Control

 

 

 

 

Control

Power Cord

Board

 

Power Cord

Board

Thermal

 

 

 

 

Switch

 

 

 

 

 

To Optional

Potentiometer

 

Display

 

 

 

Motor

 

 

 

 

 

 

 

 

Pressure

 

 

 

 

Transducer

 

 

 

 

Black

 

 

 

 

AutoClean

Motor

 

 

 

 

Leads

 

 

 

WatchDog Switch:

 

 

 

 

 

 

 

 

On - Open

Motor

Neutral

 

 

Off - Closed

 

 

 

 

 

 

 

Sensor

 

 

 

 

Leads

 

 

 

 

 

 

 

 

Switch:

 

 

 

 

15 Amp - Closed

Green/Ground

 

 

 

20 Amp - Open

 

 

 

 

 

 

 

Black

On/Off

 

 

 

Switch

 

 

 

 

 

 

White

 

Black +

 

 

 

 

GFI Filter Coil

 

 

 

 

 

 

Green/Ground

Power Plug

 

 

 

 

- +

Yellow

Control

Board

STEP 4:

Plug power cord in and turn switch ON. Disconnect potentiometer.

Control

Board

Black

20

3A0157A

Image 20
Contents Electric Airless Sprayers MarkModels Ultra MAX lIlTable of Contents Grounding Instructions GroundingFire and Explosion Hazard Skin Injection HazardEquipment Misuse Hazard Electric Shock HazardPressurized Aluminum Parts Hazard Moving Parts HazardComponent Identification Pressure Relief Procedure Power Requirements GroundingPails Extension CordMechanical/Fluid Flow TroubleshootingWhat to Check What to do Type of Problem Follow Pressure Relief Procedure on What to Check What to do Type of Problem Type of Problem What to Check HOW to Check ElectricalCheck to see if transducer and control board Step Check Motor Thermal Switch Unplug thermal Is not correct, replace motor Sprayer Will Not Shut Off YESSprayer Will Not Run Step Removal Installation VAC and 110 VAC Motor Control Board33 D 115 VAC Filter Board RemovalPressure Adjust Potentiometer Pressure Control Transducer Install control box 61 and control panel 68 with four screws 3A0157A Assembly Drive and Bearing Housing ReplacementDisassembly Drive and Bearing Housing Replacement Removal Motor ReplacementInstallation Motor Replacement Displacement Pump Replacement for 695/795/Mark Perform Relieve Pressure ProcedureTi7169a Displacement Pump Replacement 1095/1595/Mark Perform Pressure Relief Procedure,Place u-bolt on pump door protrusion Attach drain hose to sprayer Hose Reel Grease shaft Install swivel Reed Switch Replacement Removal InstallationWiring Diagram 120V Models120V Models with 15/20 Amp Switch 240V Models 3A0157A Graco Standard Warranty For Graco Canada Customers