Sno Pro Diagnostic Troubleshooting Guide 72 520 1

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Reference SectionHydraulic Manifold SymbolsElectrical System SymbolsSno-Pro 3000/Home-Pro Hydraulic Manifold CircuitSno-Pro 2000/Trip Edge/Mach 1 Hydraulic Manifold CircuitSno-Pro V-Plow W/SA Cylinders Hydraulic Manifold CircuitElectrical Plug Pin-OutsElectrical Plug Pin-Outs ContinuedHydraulic Manifold Parts BreakdownElectric/Hydraulic Power Unit Parts BreakdownNotice & WarningsDiagnostic Method

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Function Guide Section: Sno-Pro 3000/Home-ProAngle Left ElectricalAngle Left HydraulicAngle Right ElectricalAngle Right HydraulicPlow Lift ElectricalPlow Lift HydraulicPlow Float ElectricalPlow Float HydraulicJack Extend ElectricalJack Extend HydraulicJack Retract ElectricalJack Retract Hydraulic2010 Sno-Pro 3000 Elec/Hyd Overview

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Function Guide Section: Sno-Pro 2000/Trip-Edge/CommercialAngle Left ElectricalAngle Left HydraulicAngle Right ElectricalAngle Right HydraulicPlow Lift ElectricalPlow Lift HydraulicPlow Float ElectricalPlow Float Hydraulic

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Sno-Pro V-Plow with Single Acting CylindersAngle Left ElectricalAngle Left HydraulicAngle Right ElectricalAngle Right HydraulicLeft Wing Extend Electrical Left Wing Extend HydraulicRight Wing Extend ElectricalRight Wing Extend HydraulicLeft Wing Retract ElectricalLeft Wing Retract HydraulicRight Wing Retract ElectricalRight Wing Retract HydraulicPlow Lift ElectricalPlow Lift HydraulicPlow Float ElectricalPlow Float Hydraulic

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Sno-Pro Poly Trip-Edge V-Plow2010 Poly Trip-Edge V-Plow Elec/Hyd OverviewVehicle Side SchematicPlow Side SchematicVehicle Side Harness Schematic Plow Side Harness SchematicPlow Side Straight Blade AdapterPlow Side V-Blade Blade AdapterVehicle Side Relay Connector Plugging

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Troubleshooting IndexTroubleshooting Index by ProblemCurtis Warranty Forms

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TABLE OF CONTENTS

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1

CURTIS SNOWPLOWS: MANIFOLD SYMBOLS

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2

VEHICLEBATTERY

PlowFloat

JackExtend

PlowLift

AngleLeftAngle

Right

JackRetract

Ground Stud

Power Stud

SNO-PRO / HOME-PRO: ELECTRICAL SYMBOLS & DIAGRAMS

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3

SNO-PRO / HOME-PRO / TRIP-EDGE w/HYD.JACK:MANIFOLD CIRCUIT - HYDRAULIC

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4

SNO-PRO V-PLOW w/SINGLE ACTING CYLINDERS & SPRING RETURN:MANIFOLD CIRCUIT - HYDRAULIC

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5

SNO-PRO/ V-PLOW w/SINGLE ACTING CYLINDERS & SPRING RETURN:MANIFOLD CIRCUIT - HYDRAULIC

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6

SNO-PRO / HOME-PRO / TRIP-EDGE w/HYD. JACK:ELECTRICAL PLUG PIN-OUTS

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COLOR FUNCTION

SNO-PRO / HOME-PRO / TRIP-EDGE w/HYD. JACK:ELECTRICAL CONNECTIONS

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5

3

1

2

6

4B

4A

SNO-PRO / HOME-PRO / TRIP-EDGE w/HYD. JACK:HYDRAULIC MANIFOLD

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912

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11

19

4

7

68

8

9

3

2

5

1

20 2221

23

1817

16

14

13

1211

15

10

1

3

8

1094

5

62

AttachTubing Here

SNO-PRO / HOME-PRO / TRIP-EDGE w/HYD. JACK:HYDRAULIC POWER UNIT

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SNO-PRO / HOME-PRO / TRIP-EDGE w/HYD.JACKTROUBLESHOOTING GUIDE

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DIAGNOSTIC METHOD - FIND THE PROBLEM....FAST!

Using the diagram below and a test light, activate each function and test the corresponding pin in the harnessplug for power. For Lift, Left Angle & Right Angle functions, the pin for each function AND the pin for the pumpsolenoid should be powered at the same time. Activating the pump solenoid will also power the 12vdc Hi-Amppin (#2). When testing the float function, only that pin will be powered. For testing headlight and directionalfunctions, it will be necessary to turn each function on inside the cab. If all pins test correctly, the vehicle harnesssystem has been eliminated as the cause of the malfunction. If one or more pins do not test correctly, determinewhich device is connected at the other end of the harness.

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VEHICLEBATTERY

Ground Stud

Power Stud

SNO-PRO / HOME-PRO / TRIP-EDGE w/HYD. JACK:ANGLE LEFT FUNCTION - ELECTRICAL

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SNO-PRO / HOME-PRO / TRIP-EDGE w/HYD. JACK:ANGLE LEFT FUNCTION - HYDRAULIC

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VEHICLEBATTERY

Ground Stud

Power Stud

SNO-PRO / HOME-PRO / TRIP-EDGE w/HYD. JACK:ANGLE RIGHT FUNCTION - ELECTRICAL

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17

SNO-PRO / HOME-PRO / TRIP-EDGE w/HYD. JACK:ANGLE RIGHT FUNCTION - HYDRAULIC

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18

VEHICLEBATTERY

Ground Stud

Power Stud

SNO-PRO / HOME-PRO / TRIP-EDGE w/HYD. JACK:AUTOMATIC JACK RETRACT FUNCTION - ELECTRICAL

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SNO-PRO / HOME-PRO / TRIP-EDGE w/HYD. JACK:JACK RETRACT USING LIFT FUCTION - HYDRAULIC

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VEHICLEBATTERY

Ground Stud

Power Stud

SNO-PRO / HOME-PRO / TRIP-EDGE w/HYD. JACK:PLOW FLOAT FUNCTION - ELECTRICAL

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21

SNO-PRO / HOME-PRO / TRIP-EDGE w/HYD. JACK:PLOW FLOAT FUNCTION - HYDRAULIC

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22

VEHICLEBATTERY

Ground Stud

Power Stud

SNO-PRO / HOME-PRO / TRIP-EDGE w/HYD. JACK:JACK EXTEND FUNCTION - ELECTRICAL

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23

SNO-PRO / HOME-PRO / TRIP-EDGE w/HYD. JACK:JACK EXTEND FUNCTION - HYDRAULIC

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VEHICLEBATTERY

Ground Stud

Power Stud

SNO-PRO / HOME-PRO / TRIP-EDGE w/HYD. JACK:JACK RETRACT FUNCTION - ELECTRICAL USING A-FRAME JACK SWITCH

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25

SNO-PRO / HOME-PRO / TRIP-EDGE w/HYD. JACK:JACK RETRACT FUNCTION - HYDRAULIC USING A-FRAME JACK SWITCH

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Ground

Positive

Motor (12VDC) Reservior Lift

Float

Jack Extend

Jack Retract

Angle RightLIFT HOSE (ITBP98B)

JACK HOSE (ITBP98A)

RT. ANGLE HOSE (ITBP98C)

L. ANGLE HOSE (ITBP98B)

MANIFOLD

Angle Left

MANIFOLD END VIEW

Jack Hose(ITBP98A)

Lift Hose(ITBP98B)

Crossover Relief

Right Angle Hose(ITBP98C)

Left Angle Hose(ITBP98B)

CoilITBM4

SNO-PRO / HOME-PRO / TRIP-EDGE w/HYD. JACK:ELECTRICAL/HYDRAULIC POWER UNIT W/MANIFOLD

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VEHICLEBATTERY

Ground Stud

Power Stud

SNO-PRO / HOME-PRO / TRIP-EDGE w/GAS SPRING JACK:ANGLE LEFT FUNCTION - ELECTRICAL

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SNO-PRO / HOME-PRO / TRIP-EDGE w/GAS SPRING JACK:ANGLE LEFT FUNCTION - HYDRAULIC

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VEHICLEBATTERY

Ground Stud

Power Stud

SNO-PRO / HOME-PRO / TRIP-EDGE w/GAS SPRING JACK:ANGLE RIGHT FUNCTION - ELECTRICAL

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30

SNO-PRO / HOME-PRO / TRIP-EDGE w/GAS SPRING JACK:ANGLE RIGHT FUNCTION - HYDRAULIC

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31

VEHICLEBATTERY

Ground Stud

Power Stud

SNO-PRO / HOME-PRO / TRIP-EDGE w/GAS SPRING JACK:PLOW LIFT FUNCTION - ELECTRICAL

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32

SNO-PRO / HOME-PRO / TRIP-EDGE w/GAS SPRING JACK:PLOW LIFT FUNCTION - HYDRAULIC

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VEHICLEBATTERY

Ground Stud

Power Stud

SNO-PRO / HOME-PRO / TRIP-EDGE w/GAS SPRING JACK:PLOW FLOAT FUNCTION - ELECTRICAL

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SNO-PRO / HOME-PRO / TRIP-EDGE w/GAS SPRING JACK:PLOW FLOAT FUNCTION - HYDRAULIC

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Ground Stud

Power Stud

VEHICLEBATTERY

SNO-PRO V-PLOW w/SINGLE ACTING CYLINDERS & SPRING RETURN:LEFT ANGLE FUNCTION - ELECTRICAL

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SNO-PRO V-PLOW w/SINGLE ACTING CYLINDERS & SPRING RETURN:LEFT ANGLE FUNCTION - HYDRAULIC

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Ground Stud

Power Stud

VEHICLEBATTERY

SNO-PRO V-PLOW w/SINGLE ACTING CYLINDERS & SPRING RETURN:RIGHT ANGLE FUNCTION - ELECTRICAL

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SNO-PRO V-PLOW w/SINGLE ACTING CYLINDERS & SPRING RETURN:RIGHT ANGLE FUNCTION - HYDRAULIC

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Ground Stud

Power Stud

VEHICLEBATTERY

SNO-PRO V-PLOW w/SINGLE ACTING CYLINDERS & SPRING RETURN:LEFT WING EXTEND FUNCTION - ELECTRICAL

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SNO-PRO V-PLOW w/SINGLE ACTING CYLINDERS & SPRING RETURN:LEFT WING EXTEND FUNCTION - HYDRAULIC

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Ground Stud

Power Stud

VEHICLEBATTERY

SNO-PRO V-PLOW w/SINGLE ACTING CYLINDERS & SPRING RETURN:RIGHT WING EXTEND FUNCTION - ELECTRICAL

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SNO-PRO V-PLOW w/SINGLE ACTING CYLINDERS & SPRING RETURN:RIGHT WING EXTEND FUNCTION - HYDRAULIC

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Ground Stud

Power Stud

VEHICLEBATTERY

SNO-PRO V-PLOW w/SINGLE ACTING CYLINDERS & SPRING RETURN:LEFT WING RETRACT FUNCTION - ELECTRICAL

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SNO-PRO V-PLOW w/SINGLE ACTING CYLINDERS & SPRING RETURN:LEFT WING RETRACT FUNCTION - HYDRAULIC

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Ground Stud

Power Stud

VEHICLEBATTERY

SNO-PRO V-PLOW w/SINGLE ACTING CYLINDERS & SPRING RETURN:RIGHT WING RETRACT FUNCTION - ELECTRICAL

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SNO-PRO V-PLOW w/SINGLE ACTING CYLINDERS & SPRING RETURN:RIGHT WING RETRACT FUNCTION - HYDRAULIC

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Ground Stud

Power Stud

VEHICLEBATTERY

SNO-PRO V-PLOW w/SINGLE ACTING CYLINDERS & SPRING RETURN:PLOW LIFT FUNCTION - ELECTRICAL

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SNO-PRO V-PLOW w/SINGLE ACTING CYLINDERS & SPRING RETURN:PLOW LIFT FUNCTION - HYDRAULIC

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Ground Stud

VEHICLEBATTERY

Power Stud

SNO-PRO V-PLOW w/SINGLE ACTING CYLINDERS & SPRING RETURN:PLOW FLOAT FUNCTION - ELECTRICAL

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50

SNO-PRO V-PLOW w/SINGLE ACTING CYLINDERS & SPRING RETURN:PLOW FLOAT FUNCTION - HYDRAULIC

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51

Driver’s Side ExtendITBP98K (60")

Driver’s Side RetractITBP98L (63")

Passenger’s Side ExtendITBP98M (45")

Passenger’s Side RetractITBP98IV (50")

Adjustable Float ValveITBM2V

Crossover Relief

Lift HoseITBP980 (19")

CoilITBM4

MANIFOLD END VIEW

Drivers SideExtend

Lift HosePass. Side Retract

Drivers SideRetractPassengers SideExtend

MANIFOLDITBP59AP2V

Ground

Positive

Motor ITBM8 3.1 GPM Pump ITBM35

Reservior Tank ITBM36

Reservoir Cap

Angle ValveITBMIV

Hose Adapter(5 Places)ITBP200

Coil (5 Places)ITBM4A

ITBM3

POLY TRIP EDGE V-PLOWELECTRIC/HYDRAULIC POWER UNIT WITH MANIFOLD

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52

CURTIS UNIVERSAL VEHICLE SIDE HARNESS SCHEMATIC P/N: 1UHT

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53

CURTIS UNIVERSAL PLOW SIDE HARNESS SCHEMATIC P/N: 1UHP

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CURTIS UNIVERSAL VEHICLE SIDE HARNESS LAYOUT P/N: 1UHT

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CURTIS UNIVERSAL PLOW SIDE HARNESS LAYOUT P/N: 1UHP

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56

CURTIS PLOW SIDE HARNESS JACK ADAPTERFOR HYDRAULIC JACK EQUIPPED SNOWPLOWS P/N: 1UHJA

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CURTIS PLOW SIDE HARNESS V-PLOW ADAPTER P/N: 1UHVA

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58

CURTIS VEHICLE SIDE HARNESS RELAY CONNECTOR CONNECTIONS

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59

TROUBLESHOOTING INDEX - BY PROBLEM

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CURTIS SNO-PRO 3000 / HOME-PRO / TRIP-EDGE w/HYD. JACKTROUBLESHOOTING GUIDE

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Sno Pro Diagnostic Troubleshooting Guide 72 520 1

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