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Sno-Way 24 Series Owner's Manual

Sno-way 24/25 series snow plow with down pressure system
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P
R
O
OWNER'S
MANUAL
24 SERIES SNOW PLOW
25 SERIES SNOW PLOW
DOWN PRESSURE SYSTEM
FOR PLOW SERIAL NUMBERS AFTER
D
U
C
WITH
24D100000
25D100000
TM
T
S
97100200E

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Summary of Contents for Sno-Way 24 Series

  • Page 1 Back to Index  OWNER’S MANUAL 24 SERIES SNOW PLOW 25 SERIES SNOW PLOW WITH DOWN PRESSURE SYSTEM FOR PLOW SERIAL NUMBERS AFTER 24D100000 25D100000 97100200E...
  • Page 2 Back to Index...

  • Page 3: Table Of Contents

    Back to Index TABLE OF CONTENTS TABLE OF CONTENTS Page INTRODUCTION ......................2 SAFETY ........................3 THEORY OF OPERATION..................4 PLOWING OPERATION..................... 7 Operating Classes .................... 7 Before The Season Begins ................7 Transporting Vehicle With Plow Attached ............7 Plowing Like A Pro ...................

  • Page 4: Introduction

    Sno-Way snow plow Service Parts Manuals are available ment. for purchase from your authorized Sno-Way dealer. Sno-Way snow plow Service Parts Manuals may also be Record the Power Pack Model Number, Power Pack ordered from the address on the back of this manual by Serial Number, Controller Serial Number, Blade Model requesting part number 97100204.

  • Page 5: Safety

    ALWAYS inspect the unit periodically for defects. Parts begins. New decals can be obtained from Sno-Way or that are broken, missing or plainly worn must be replaced your local dealer. immediately. The unit, or any part of it should not be...

  • Page 6: Theory Of Operation

    Back to Index THEORY OF OPERATION Hydraulic Power Unit Raise/Lower Switch three position, ON-OFF-MOMENTARY ON switch. The switch will The hydraulic power unit consists of: automatically return to OFF from the Raise ON position, and will lock in the Lower/Float ON position until cancelled •...
  • Page 7 Back to Index IMPORTANT: The lower valve is closed by spring relived to the sump by the DP Relief Valve. Once the pressure. If it does not close completely against the obstacle is cleared the plow will lower back to the surface valve seat, the plow can slowly lower after the raise being plowed, lowering Raise Cylinder pressure, and the switch is released.

  • Page 8: Circuit Breaker

    Back to Index Example: Blade is in straight position, a obstacle is hit with Controls And Indicators right side of blade creating more than 2000 psi in Right Raise/Lower Switch: Cylinder. The Crossover Relief Valve relieves pressure from the Right Cylinder and pressurizes the Left Cylinder Raise/Lower Switch three...

  • Page 9: Plowing Operation

    Transporting Vehicle With Plow Attached 24 Series The 24 Series SnoWay Plow is specifically designed for light duty snow plowing with full size 1/2, 3/4 ton and midsize 4x4’s. This Plow can also be used for some light commercial applications such as lot cleanup, drives and WARNING sidewalks.

  • Page 10: Plowing Like A Pro

    Back to Index Plowing Like A Pro Using The Down Pressure (DP) Hydraulic System The DP system was designed for removing hard packed snow from hard surfaces that have had traffic on them prior to being plowed. WARNING The system should be turned OFF when plowing surfaces such as gravel, dirt, sand, etc., to prevent cutting into the •...

  • Page 11: Clearing Parking Lots

    Back to Index Clearing Parking Lots WARNING CAUTION VEHICLES EQUIPPED WITH AIR BAGS! Never pile snow more than 18” high. Excessive Certain Vehicles equipped with Air Bags cannot stacking of snow causes undo stress to the be equipped with Snow Plows because of the snowplow and components.

  • Page 12: Installing The Transport Lock Clamp

    Back to Index 8. Connect accessory light wiring harness. Installing The Transport Lock Clamp WARNING COVER Always install the Transport Lock Clamp when the plow is raised and the operator is not engaged in plowing operations. Equipment failure or inadvertent operation of the control switches while driving could allow the plow to fall, resulting in serious injury.

  • Page 13: Removing Snow Plow From Vehicle

    Back to Index 4. Turn vehicle ignition switch to accessory position only. 5. Put control box toggle switch in “down” or “float” position, this is done to allow the “down” valve to remain activated which will allow the snow plow Raise Cylinder to collapse allowing easy removal of the Hitch Pins.
  • Page 14 Back to Index CAUTION Never use pliers or any other tool to separate the wiring harness connector halves. 8. If Plow is equipped with auxiliary light kit, disconnect wiring harness and coat terminals of wiring harness plugs with dielectric grease. LYNCH PIN HITCH PIN Figure 1-6...

  • Page 15: Trouble Shooting Guide

    Back to Index TROUBLE SHOOTING GUIDE Introduction 5. Check for external leakage at cylinders, hoses and power unit. Whenever service is necessary, your local dealer knows 6. Check the voltage at the coils which operate the your plow best and is interested in your complete solenoid valves to be sure that the voltage at the coils is a satisfaction.

  • Page 16: Troubleshooting

    Back to Index TROUBLESHOOTING PROBLEM PROBABLE CAUSE CORRECTIVE ACTION Motor will not run Motor brushes worn/commutator worn or dirty Refer to dealer Seal between motor and pump damaged Refer to dealer allowing oil to enter motor housing Circuit breaker failed Refer to dealer Motor solenoid failed Refer to dealer...
  • Page 17 Back to Index TROUBLESHOOTING PROBLEM PROBABLE CAUSE CORRECTIVE ACTION Unit lifts but does not Dirt in check valve or lower solenoid valve Cycle raise and lower system to hold - first action. flush debris Lower solenoid valve sticking Cycle raise and lower system to un-stick valve Unit lifts but does not Dirt or debris in check valve...
  • Page 18 Back to Index TROUBLESHOOTING PROBLEM PROBABLE CAUSE CORRECTIVE ACTION Unit angles very slowly Hydraulic fluid level low See Maintenance section Crossover relief valve sticking or stuck Refer to dealer Crossover relief valve pressure setting too low Refer to dealer Improper oil viscosity for outside air temperature, See Maintenance section unit not at normal operating temperature Spool valve sticking or stuck...
  • Page 19 Back to Index TROUBLESHOOTING PROBLEM PROBABLE CAUSE CORRECTIVE ACTION Fluid leaking at down Hydraulic fittings not torqued properly Refer to dealer pressure valve Pressure switch improperly torqued Refer to dealer Relief valve improperly torqued Refer to dealer Down pressure valve improperly torqued Refer to dealer Damaged O-rings on pressure switch, fittings, Refer to dealer...

  • Page 20: Maintenance

    Back to Index MAINTENANCE General NOTE: Allowable free play range is 1/2" to 1-1/2". If free play exceeds this range it must be adjusted using the • Before operating, perform a thorough visual inspec- following steps. tion of the equipment. Look for fluid leaks, cracked, bent or broken components, loose nuts, bolts or To remove any excessive free play: attachments and proper fluid levels.

  • Page 21: Polycarbonate Blade Care

    Back to Index Polycarbonate Blade Care Changing Oil and Cleaning Filter Screen • DO NOT use abrasive or highly alkaline cleaners on Polycarbonate Blade. • Never scrape Polycarbonate Blade with squeegees, CAUTION razor blades or other sharp instruments. • Benzene, gasoline, acetone or carbon tetrachloride Using proper increases...
  • Page 22 Back to Index 4. Carefully drain oil from reservoir into a suitable container and discard in a approved waste oil disposal FILLER CAP site. CAPS CREWS PIVOT NUT PLATE 3/8" CAP SCREW Figure 2-4 Figure 2-2 11. Remove the filler/breather cap from the reservoir. (See Figure 2-4) 5.
  • Page 23 Back to Index 17. Inspect the O-ring seal for damage, replace if needed, lubricate with fresh oil and reinstall reservoir carefully to avoid damaging the O-ring. Tighten Cap Screws to 4-6 lb-ft. (See Figure 2-4) PIVOT NUT PLATE BAND CLAMP 3/8"...

  • Page 24: Disk Shoe Adjustment

    Back to Index 25. Mark hydraulic fittings for position and location on both Angle and Raise Cylinders and carefully disconnect them. WARNING NOTE: Do not loosen fitting in cylinder body. Loosen only at connection with hose.(See Figure 2-9) Keep hands and feet clear of blade and A-Frame 26.

  • Page 25: Trip Spring Adjustment

    Back to Index 2. Place suitable blocking under A-Frame of plow to allow at least 6” of clearance to the ground. INSTALL WITH 3. Lower plow onto blocking. OPEN END OF LOOP FACING VEHICLE NOTE: If Plow is equipped with Lexan Blade the blade must be retained prior to removing the Cutting Edge.

  • Page 26: Torque Specifications

    Back to Index TORQUE SPECIFICATIONS 1 or 2 Grade No Marks and Head Markings Grade No Marks and Nut Markings Grade 1 Grade 2 Grade 5, 5.1 or 5.2 Grade 8 or 8.2 Lubricated Lubricated Lubricated Lubricated SIZE lb-ft lb-ft lb-ft lb-ft lb-ft...

  • Page 27: Hydraulic Schematic (Down Pressure System)

    Back to Index HYDRAULIC SCHEMATIC (Down Pressure System) LEFT ANGLE CYLINDER RIGHT ANGLE CYLINDER (Angles Plow Right) (Angles Plow Left) U-VALVE ASSEMBLY CROSSOVER RELIEF RAISE VALVE 2000 PSI CYLINDER CROSSOVER RELIEF VALVE 2000 PSI DP PRESSURE SWITCH Left Angle Right Angle Solenoid Solenoid DP RELIEF...

  • Page 28: Wiring Schematic Rocker Switch Style (Down Pressure System)

    Back to Index WIRING SCHEMATIC ROCKER SWITCH STYLE (Down Pressure System) 2 RED 6 GREEN 7 BLACK 5 RED LOWER SOLENOID VALVE RIGHT SOLENOID VALVE DC MOTOR HYDRAULIC POWER UNIT 4-WAY LEFT SOLENOID VALVE VALVE DP PRESSURE SWITCH OB BLACK OB BLACK OB BLACK OB BLACK...

  • Page 29: Wiring Schematic Joy Stick Style (Down Pressure System)

    Back to Index WIRING SCHEMATIC JOY STICK STYLE (Down Pressure System) 2 RED 6 GREEN 7 BLACK 5 RED LOWER SOLENOID VALVE RIGHT SOLENOID VALVE DC MOTOR HYDRAULIC POWER UNIT 4-WAY LEFT SOLENOID VALVE VALVE DP PRESSURE SWITCH OB BLACK OB BLACK OB BLACK OB BLACK...
  • Page 30 Back to Index Notes...

  • Page 31: Warranty

    SNO-WAY PLOWS LIMITED ONE-YEAR WARRANTY SNO-WAY Warrants to the original retail purchaser for a period of one (1) year from the date of delivery from an authorized SNO-WAY Dealer that your new SNO-WAY Plow is free from defects in materials and workmanship if properly set up and operated in accordance with the recommendations set forth in SNO-WAY’s Set-up and Operator’s Manuals.
  • Page 32 Back to Index ® SNO-WAY INTERNATIONAL, INC. 844 West State Street Hartford, WI 53027 USA Phone (262) 673-7200 FAX (262) 673-7409 © ® 1999 Sno-Way International...

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25 series24d10000025d100000

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