Graco 16W873, ti23055a, 16W884, 16W881, 16W867, 16W887, 16W984 Control Board Malfunction Steps, Volts

Page 26

Troubleshooting

Control Board Malfunction (Steps)

	STEP 1.
BEEP	Turn engine
	OFF and set
	meter to
	continuity.

-

	ti14938a
+	Pump
	On/Off
-	Switch

To Ground

To Engine

STEP 2.

12 -20 AC Turn engine ON. Set meter

Vto AC volts and connect wires

- to control

ti14939aboard.

	Control
-	Board		+

	J2	J1

Engine

Generator

To Clutch

Field

+

Clutch Test Points

J10

LED

D12

J2 J1

STEP 3.

10-12 DC Leave engine running and turn

Vswitch ON. Turn potentiometer to

		-	high and set
	ti14940a		meter to DC
	ti14940a		volts.
			volts.
Clutch		-	+
Field

			Control
			Board
Pinion	Drive
Assembly	Housing

	Control	ti14943a
	Board	ti14943a
	Board
J3 J4		J5
		J9

On/Off Switch

WatchDog	Transducer

Premium Display Board

Potentiometer

ti14942a

-

Clutch

Field

STEP 4.

	1-3 ohms	Turn engine
		Turn engine
		OFF and
	-	unplug
	-	clutch wires.
		clutch wires.
		Set meter to
		Ohms.
	+
		Control
		Board

STEP 5.
Turn engine	Control
ON and turn	Board J5
switch ON.
switch ON.

ti14941a

Clutch Test Points

26

332919C

Image 26

Contents Operation Table of Contents Fire and Explosion Hazard Equipment Misuse Hazard Component Identification Standard Models 3400, 3900, 5900, 5900HD, 7900, 7900HDProContractor Models 3900, 5900, 7900, 5900HD, 7900HD Ironman Models 5900, 7900, 7900HD Lo-Boy Models 3900, 5900 Convertible Models Pressure Relief Procedure Grounding Setup Convertible Models Only Change Engine to MotorStartup Switch Tip Guard Assembly SprayProContractor and Ironman units only Clearing Tip ClogsWatchDog Protection System Hose Reel ProContractor units onlyChange Display Units Digital Tracking SystemProContractor and Ironman units Operation Main Menu Job GallonsPress and hold DTS button to clear error code to zero Cleanup Turn prime valve down Drain position Maintenance Pressure Relief ProcedureTroubleshooting Problem Cause SolutionTroubleshooting Troubleshooting Procedure Fluid Pump Runs ConstantlyControl Board Malfunction Control Board Malfunction Steps VoltsConvertible Electric Motor Will Not Run Convertible Electric Motor Will Not Run Steps See step Is there over 10-20 AC volts? Beep Digital Display Messages Two blinks is the same as E=02Pinion Assembly/Clutch Armature/Clamp Pinion Assembly/Clutch Armature RemovalInstallation Metric Technical DataModels Models Honda GX160 Engine Ansi Power Rating @ 3600 rpm Horsepower Honda GX200 Engine Ansi Power Rating @ 3600 rpm Horsepower Graco Standard Warranty Graco Information