• Defined in the next column, are the SAFETY ALERT messages and how they will appear in this manual.

NOTE: Additional information concerning the equipment or the procedure that may or may not be contained elsewhere in this manual.

We reserve the right to make changes or improve the design or construction of any part(s) without incurring the obligation to install such parts or make any changes on any unit previously delivered.

Graphics and illustrations may be used which may show equipment and/or options not included in every installation without incurring the obligation to install such parts or make changes on units previously delivered.

Sno-Way Service Parts Manuals are available for purchase from your authorized Sno-Way dealer. Request part number 97101024 for the 22 Series Snow Plow. Factory contact information is available at www.snoway.com.

BEFORE ATTEMPTING ANY PROCEDURE IN THIS BOOK, READ AND UNDERSTAND ALL THE SAFETY INFORMATION CONTAINED IN THIS SECTION. IN ADDITION, ENSURE ALL INDIVIDUALS WORKING WITH YOU ARE ALSO FAMILIAR WITH THESE SAFETY PRECAUTIONS.

For your safety Warning and Information Decals have been placed on this product to remind the operator to take safety precautions. It is important that these decals are in place and are legible before operation begins. New decals can be obtained from Sno-Way or your local dealer.

REMEMBER The careful operator is the best operator. Most accidents are caused by human error. Certain precautions must be observed to prevent the possibility of injury to operator or bystanders and/or damage to equipment.

NEVER operate plow when under the influence of alcohol, drugs or other medications that could hamper your judgement and reactions. An accident may result in serious injury or death to other persons or yourself.

ALWAYS operate vehicle in a well-ventilated area. The carbon monoxide in exhaust gas is highly toxic and can cause serious injury or death.

NEVER allow hands, hair or clothing to get near any moving parts such as fan blades, belts and pulleys. Never wear neckties or loose clothing when working on the vehicle.

NEVER wear wrist watches, rings or other jewelry when working on the vehicle or individual equipment. These things can catch on moving parts or cause an electrical short circuit that could result in personal injury.

ALWAYS wear safety goggles when working on the vehicle to protect your eyes from battery acid, gasoline, and dust or dirt from flying off of moving engine parts.

ALWAYS be aware of and avoid contact with hot surfaces such as engine, radiator, and hoses.

ALWAYS wear safety glasses with side shields when striking metal against metal! In addition, it is recommended that a softer (non-chipable) metal material be used to cushion the blow. Failure to heed could result in injury to the eye(s) or other parts of the body.

NEVER allow children or unauthorized person to operate this unit.

NEVER exceed 45 m.p.h. when snow plow is attached to vehicle. Braking distances may be increased and handling characteristics may be impaired at speeds above 45 m.p.h.

ALWAYS lock the vehicle when unattended to prevent unauthorized operation of the plow.

ALWAYS check the job site for terrain hazards, obstructions and people.

NEVER exceed 10 m.p.h. when plowing. Excessive speed may cause serious injury and damage of equipment and property if an unseen obstacle is encountered while plowing.

ALWAYS position blade so it does not block path of headlamps beam. Do not change blade positions while traveling. An incorrect plow position blocking headlamp beam may result in an accident.

ALWAYS check surrounding area for hazardous obstacles before operating this unit.

ALWAYS inspect the unit periodically for defects. Parts that are broken, missing or plainly worn must be replaced immediately. The unit, or any part of it should not be altered without prior written approval of the manufacturer.

ALWAYS insert the cylinder lock when plow is not in use. If the cylinder lock is not installed, the plow blade could inadvertently drop and cause injury.

ALWAYS shut off the vehicle engine, place the transmission in Neutral or Park, turn the ignition switch to the “OFF” position, firmly apply the parking brake of the vehicle and turn “OFF” the plow controller before attaching or detaching the blade from the vehicle or when making adjustments to the blade.

ALWAYS inspect lift system bolts and pins whenever attaching or detaching the plow, and before traveling. Worn or damaged components could result in the plow dropping to the pavement while driving, causing an accident.

ALWAYS keep hands and feet clear of blade and A-Frame when attaching or detaching plow.

NEVER place fingers in A-frame or mount lug holes to check alignment when attaching snow plow. Sudden motion of the plow could severely injure a finger.

NEVER stand between the vehicle and blade or directly in front of blade when it is being raised, lowered or angled. Clearance between vehicle and blade decreases as blade is operated and injury or death can result from blade striking a body or dropping on hands or feet.

NEVER work on the vehicle without having a fully serviced fire extinguisher available. A 5 lb or larger CO² or dry chemical unit specified for gasoline, chemical or electrical fires, is recommended.

NEVER smoke while working on the vehicle. Gasoline and battery acid vapors are extremely flammable and explosive.

NEVER use your hands to search for hydraulic fluid leaks; escaping fluid under pressure can be invisible and can penetrate the skin and cause injury! If any fluid is injected into the skin, see a doctor at once! Injected fluid MUST be surgically removed by a doctor familiar with this type of injury or gangrene may result.

REMEMBER it is the owner’s responsibility for communicating information on the safe use and proper maintenance of this machine.

General

Install the subframe on the vehicle using the instructions supplied with the subframe package. The pin height should be 8" - 10" off the ground. (See Figure 1-1).

Figure 1-2

1. Attach the other end of one 2 ft. long power wire to the positive terminal on the battery.

2. Attach the power harness red wire to the other terminal of the fuse holder.

3. Place the fuse between the two studs and replace the

Figure 1-1 nuts and cover.

Mechanical Installation

IMPORTANT: Graphics and illustrations may be used which may show equipment and/or options not included in every installation.

NOTE: The 22 series blade uses blade stops. Make sure the proper stops are installed.

1. Open the power pack carton and remove the blade parts bag (part number 96107547). The blade stops are in the blade parts bag.

2. Place stops between the lugs on the swing frame. Secure with 3/8" x 1-3/4" bolts and locking nuts. (See Figure 1-4). The bolts and nuts are in the blade parts bag.

Figure 1-7

1. Hook other end of spring onto eyebolt. Insert one eyebolt on each side of the blade into the hole on the swing frame spring bracket. Use a nut on either side of bracket to secure. (See Figure 1-7).

2. Tighten springs until a .010" feeler gauge can pass between two or more coils. (A 3x5 postcard is approximately .010" thick.)

c CAUTION
Do not over tighten springs. If more than .015" (1/64") gap appears between coils damage could occur during plowing. Spring must be installed with open end of top loop facing vehicle. Bottom loop position will vary.

1. Remove power unit from carton. Remove pump cover and install receiver using instructions included with controls package. Fill reservoir on pump with supplied hydraulic fluid.

2. Set lower hitch pins into slot on truck A-frame. Plug in power and control harness and rotate light/lift bar into position. Lock in place by rotating cam handles. Set A-frame level using plow control. See for more information.

3. Remove 3/4" lock nut, washer and bolt. Slide swing frame into A-frame. Replace 3/4" bolt, washer and lock nut. Tighten hardware. (See Figure 1-8) and (See Figure 1-9).

Figure 1-9

1. Remove cotter pins, clevis pins and spacers from rod end of cylinders. Extend cylinders using plow control to align holes in cylinder rod and swing frame. Replace spacers, clevis pins and cotter pins, making sure that spacer is on bottom of rod. (See Figure 1-8).

2. Cycle all plow functions and refill reservoir. Repeat until all air is removed from hydraulic system.

3. Replace and tighten pump cover.

4. Install side marker into pre-drilled holes on blade frame using hardware included in package.

5. Install deflector, if equipped.

c	WARNING
When using the hand held controller to raise or lower the plow A-frame for mounting the plow to the vehicle, be especially careful of the movement of the light bar. This movement will occur when raising or lowering the A-frame or jack stand. FAILURE TO FOLLOW CAN RESULT IN INJURY OR DEATH

17. Remove left and right light support from power pack carton. Secure each light bar support to lift/light bar with

(3) 3/8" x 1" screws, (6) washers and (3) lock nuts from the light bar parts bag part number 96106089. Do not tighten at this time. (See Figure 1-10).

Figure 1-10

18. Secure light bar to supports with (4) 3/8" x 1" screws and lock nuts. Align light bar supports to vertical position and tighten all light bar hardware. Tighten six lower screws to 45 lb-ft. (See Figure 1-10).

Mount lamps on light bar using supplied 1/2" lock washers and nuts. (See Figure 1-11).

1. Route the harnesses through the light bar, through the access hole and down the inside of the light bar supports. Pass each plug through hole in back of light bar supports and connect. (See Figure 1-11).

2. Check for proper light operation and aim plow lights with plow in up position.

3. Apply included dielectric grease to all light harness connections.

NOTE: In order to conform to Federal Motor Vehicle Safety Standards a SAE J602 Approved aiming device must be used to aim plow lights.

Mounting Snow Plow To Vehicle

1. Drive truck into plow. Align light/lift bar frame outside of subframe lugs. Pins should fit inside slots cut into subframe lugs. (See Figure 1-12).

NOTE: If pins are too high or low to fit into slots on sub-frame, adjust the height by plugging in the plow and hand held controller. For Down Pressure Plows - To lower the pins, turn on down pressure and press down. To raise the pins, press up. For Gravity Plows - To lower the pins, place plow in float and push up on light bar. To raise the pins, press up.

c	WARNING
Pressing the blade angle functions will result in the A-frame swinging if it is not secured to the truck. Do not press the angle function during plow installation. FAILURE TO FOLLOW CAN RESULT IN INJURY OR DEATH

1. Plug in power harness and remove controller from truck cab. Plug controller into plow.

2. Rotate light/lift bar into position by turning on down pressure and pressing the lower button. (See Figure 1 13) .

c

WARNING

The power cable in front of the truck is wired directly to the battery. The power cable is always energized, even if the truck is turned off. Always replace the protective cap after disconnecting the plow power cable. Allowing an unprotected plug to contact metal parts of the truck may cause electrical component damage. Never use a metal object to clean the plug contacts. FAILURE TO FOLLOW CAN RESULT IN INJURY OR DEATH

4. Put plow into float position by turning down pressure off. Rotate pin handles forward to lock upper hitch pins in place. (See Figure 1-14).

c	WARNING
Make sure that upper hitch pins are engaged before moving truck. Hitch pins not fully engaged could result in the plow separating from the truck. FAILURE TO FOLLOW CAN RESULT IN INJURY OR DEATH

NOTE: Upper hitch pins are fully engaged when pin handle is tight against pin bracket and you cannot see the upper hitch pin between the pin bracket and pin handle. If upper hitch pins are not fully engaged:

A. Raise plow an inch off the ground, then lower. Or,

B. Turn Down Pressure ON and then OFF. Upper hitch pins will snap into place.

Figure 1-14

1. Unplug plow from control.

2. Disengage both jack stand pins by pulling on handles. Raise the jack stand and engage the bottom pin by pushing on the handle. Make sure pin is engaged in hole by rotating jack stand back and forth. (See Figure 1 15) .

c CAUTION

To avoid unnecessarily tripping the truck’s sensor, every time the plow lights are being attached to the truck circuits or the truck circuits are being reattached to the vehicle lights, the truck’s lights should be turned off. Due to the aforementioned concerns, operators of vehicles equipped with EIS lights should make themselves aware of whatever circuit sensors may be installed on their vehicles. Operators should further become familiar with their vehicle manufacturer’s description of how their truck’s sensors are actuated or tripped. Finally operators should know whether predesignated failure limits may be engineered into their truck’s sensors and what repair or replacement procedures are recommended should those limits be reached. Currently, the vehicle models affected are as follows: 2006 and later-Dodge Dakota and Durango - All packages. 2006 and later-Dodge 1500, 2500 and 3500-All packages. 2008 Ford F250-F550 - All packages.

c CAUTION

Many new vehicles are equipped with onboard circuit sensors designed to display a dashboard LED when a headlight fails. Generally, these sensors are activated or tripped any time the circuit is being called upon to function while the headlight circuit is incomplete. This means that if a headlight fails while the headlight is in operation, the sensor will trip and the dashboard indicator will light up. It also means that if a headlamp socket is left empty—or a faulty lamp is installed—and the circuit is then activated, the sensor will trip and the dashboard indicator will light up. These headlight circuit sensors are often engineered with pre-designated failure limits. This means that a sensor may be tripped a limited number of times. After that limit is reached the sensor may need to be reset by the dealer or replaced by the manufacturer. Sno-Way EIS plow light systems essentially operate through a planned interruption of the headlight circuit. When the truck-side connectors are detached from one another, the vehicle headlamps are disconnected from the truck circuits which otherwise power them. Until those truck-side connectors are attached to the plow-side light connectors, the truck-side circuits are open. This means that if the truck’s onboard sensors are active while the plow lights are being attached to the truck, the truck’s sensors may trip.

Figure 1-15

7. Unplug light harness connectors on truck, and disconnect plow light connectors, which had been plugged together for corrosion protection during storage (See Figure 1-16).

Figure 1-16

8. Plug plow light connectors into mating connectors on truck light harness (See Figure 1-17).

Figure 1-17

c	WARNING
Failure to properly connect plow lights to vehicle light harness will prevent plow lights from functioning. Follow proper procedure to connect light harnesses and test lights before operating. FAILURE TO FOLLOW CAN RESULT IN INJURY OR DEATH

1. Plug control harness on plow into truck. Plug plow control inside truck cab.

2. Raise, Lower and angle plow to make sure no hoses or wires pinch in the plow mechanism.

Removing Snow Plow From Vehicle

Choose a location for the plow storage, which will allow the plow to be removed from the vehicle and not be moved after removal. Also, choose a location that will not allow the plow stand to sink into the ground. A dry, protected area is recommended.

1. Lower plow to the ground, put vehicle in park, turn off the engine and set the parking brake.

2. Disconnect the plow lights from the truck light harness (See Figure 1-19). Disconnect the plow control harness and replace the protective cap. (See Figure 1-21 or 1-22).

Failure to reconnect the main light harness on the truck when removing plow will cause truck lights to not operate, which could cause an accident. Test lights before operating.

FAILURE TO FOLLOW CAN RESULT IN INJURY OR DEATH

Figure 1-19

1. To prevent corrosion on the contacts, plug the male and female connectors on the plow together (See Figure 1-20) .

2. To make the truck lights operable, plug the male and female connectors on the truck light harness together (See Figure 1-20).

When disconnecting the plow control harness, turn only the locking nut at the end of the connector. Do not turn the threaded boot. Turning the threaded boot will break the wires in the harness and cause the controller to stop functioning. (See Figure 1-21).

Figure 1-21

6. Push pin handles toward truck to unlock main pins. 9. Rotate jack stand down and raise A-frame by (See Figure 1-23). pressing the up button. (See Figure 1-25).

Figure 1-23

1. Disengage lower jack stand pin by pulling on handle. Lower the jack stand and engage the top pin by pushing on the handle. Make sure pin is engaged in hole by rotating jack stand back and forth.

2. Remove controller from truck cab and plug into plow control harness.

Figure 1-24

General

Before servicing plow, lower plow to the ground or onto cylinder lock clamp and disconnect main power harness.

FAILURE TO FOLLOW CAN RESULT IN INJURY OR DEATH

• Before operating, perform a through visual inspection of the equipment. Look for fluid leaks, cracked, bent or broken components, loose nuts, bolts or attachments and proper fluid levels.

• A clean system is essential to long pump life and proper performance.

IMPORTANT: Hydraulic fluid packaged with power unit is Type 5606. If additional oil is added it must be compatible with Type 5606. If another type of oil has been used in the system the same type of oil must be used for topping off the system

• Do NOT use synthetic oil.

• Oil must contain an anti-foam additive.

• Ensure all electrical connections are clean and tight.

• To prevent rust from forming, clean and repaint exposed metal surfaces.

• NEVER operate the equipment with the protective covers or guards removed.

Break In Period

The plow will go through a break in period during which the A-frame and swing frame will settle in. After 15-20 hours of operation check for free play of the A-frame and swing frame pivot.

1. Raise the plow and install the transport lock.(See "Installing The Cylinder Lock Clamp" on page 10).

2. Push down on end of blade as far as it will go on the right or left side. Measure and record the distance from the ground to the bottom edge of the wear strip.

3. Pull upwards on the same end of the plow as far as it will go. Measure and record the distance from the ground to the bottom edge of the wear strip.

4. Subtract the two measurements. If the number is greater than 1-1/2" then the free play needs to be adjusted.

To Remove Excessive Free Play

1. Tighten the pivot bolt nut (typically 1/6 to 1/3 turn, one or two flats).

Periodic Inspection

After every 20 hours of operation perform the following inspections:

1. Inspect plow assembly including sub frame for any damage or excessive wear. Replace parts as necessary.

2. Inspect all fasteners to insure they are properly tightened. Re-tighten loose fasteners to the proper torque (Refer to torque specification chart in this manual).

3. Apply a small amount of light oil to: Quick-tatch pin and handle assemblies, pivot pins between the blade and swing frame, and pivot pins at lift and swing cylinders. Also lubricate jackstand pins. (See Figure 2-1).

Figure 2-1

4. If wear is noticed between the A-frame and the swing frame apply a good quality anti-seize lubricant to this area.

Plow Storage

When storing the plow for long periods of time use the following guidelines.

1. If the plow will not be stored on pavement, place a board under the jack stand to prevent it from sinking into the ground.

2. To prevent corrosion, coat the exposed portion of the cylinders with light grease.

3. Grease all pivot points.

4. Fill hydraulic reservoir to the fill line to minimize trapped air.

1. Place dielectric grease on the terminals of all electrical plugs, including those under pump cover. Make sure protective caps are in place or connectors are plugged together.

2. Check and replace any worn or damaged components, such as cutting edges, deflectors, and bushings.

Operating Class

The 22 series Sno-Way plow is specifically designed for applications on light duty trucks and SUVs.

Before the Season Begins

1. Inspect plow vehicles brakes, headlights, plowing lights, windshield wipers, flashers, electrical system, and cooling system for proper operation.

2. Inspect plow assembly including sub frame for any damage or excessive wear. Replace parts as necessary.

3. Inspect all fasteners to insure they are properly tightened. Re-tighten loose fasteners to the proper torque (Refer to torque specification chart in this manual).

4. Apply a small amount of light oil to: Quick-tatch pin and handle assemblies, pivot pins between the blade and swing frame, and pivot pins at lift and swing cylinders. Also lubricate jackstand pins. (See Figure 2-1).

5. If wear is noticed between the A-frame and the swing frame apply a good quality anti-seize lubricant to this area.

6. Clean and repaint any exposed metal parts with corrosion resistant enamel.

7. Check free play between the a-frame and swing frame pivot. Adjust if necessary. (See "Break In Period" on page 13).

8. Check the oil level and repair any oil leaks. (See "THEORY OF OPERATION" on page 22).

9. Inspect electrical connectors. Make sure the contacts are clean, and apply a small amount of dielectric grease.

10. Install auxiliary and flashing lights (if not equipped). Ensure auxiliary lights are aimed properly (with the plow raised).

11. If ballast is required, position and secure ballast behind rear wheels, for optimum performance.

Transporting Vehicle With Plow Attached

1. Always install the cylinder lock clamp when the plow is raised and the operator is not engaged in plowing operations.

NOTE: Note: If cylinder lock clamp is not installed during transport equipment failure or inadvertent operation of the controls could allow the plow to fall.

1. Position the blade out of the beam path of the headlights before driving.

2. Do not exceed 45 M.P.H. when driving with the snowplow attached. Braking distance is increased and handling impaired at speeds above 45 M.P.H.

3. Reduce speed when crossing railroad tracks or when road conditions deteriorate.

4. Never change blade angle or height while driving.

5. Inspect plow and attaching hardware for damage before transporting or plowing.

Plowing Like A Pro

NOTE: The air bag is factory set to deploy at a certain acceleration level. The air bag will deploy with the plow attached if an obstruction is hit with enough force to reach this level. Always plow within the recommended plowing speeds and know the area you are plowing to avoid any obstructions.

NOTE: For better clean up of hard packed snow; raise the disc shoes so that the cutting edge of the blade comes into direct contact with pavement. Use the lowest possible gear to place maximum power behind the cutting edge.

For instructions on using the plow controller to manipulate the plow see the manual included with your plow control package.

1. Become familiar with the area to be plowed and mark potential hazards before the snow falls. Many immovable objects cannot be seen when covered with snow. Developing a plan early can save valuable time and equipment damage. Allow sufficient room to pile snow, out of the traffic area, with enough space for when the next storm comes.

2. Plow with the storm. The "Pros" are out early removing only several inches at a time. Allowing snow to accumulate to unmanageable levels can cause removal problems and wear and tear on equipment. The plow is not a "Ram" or a "Bulldozer". If used properly, it will give many years of safe and reliable service.

3. Research municipal ordinances for restrictions on the disposal of snow. Many municipalities do not allow snow to be placed in or moved across roads or highways.

4. Research state department of transportation rules on maximum width restrictions for snow plows. Certain blades may require permits.

The DP system was designed for removing hard packed snow from hard surfaces that has been driven on prior to plowing.

The system should be turned OFF when plowing surfaces such as gravel, dirt, sand, etc., to prevent cutting into the surface.

Activating the system applies down pressure to the down pressure side of the lift cylinder. This down pressure will force the cutting edge through hard packed snow. If down pressure decreases as a result of a low spot, more down pressure will be applied to the lift cylinder. When a high spot is encountered the down pressure will be relieved to allow the plow to follow the contour without lifting the front of the truck.

1. Head into driveway with the blade angled to move snow away from buildings. Continue to widen the drive path by rolling snow away from buildings on successive passes.

2. If there is a garage at the end of the driveway, plow to within several vehicle lengths of the garage and push the snow off the driveway.

3. Raise the blade and drive through the snow up to the garage. Drop the blade and "Back Drag" the snow 1-1/2 vehicle lengths back. Repeat as necessary.

Back the vehicle to garage door and plow forward toward street, removing the remaining snow.

Clearing Parking Lots

1. "Back Drag" areas in front of buildings and near walls then work away from buildings towards the outer edges of the lot.

2. Plow a single path down the center in the longest direction.

3. Angle plow toward the outside and make successive passes until the area is cleared and the snow is "Stacked" around the outer edges. If snow is too deep to clear in the above manner, clear main traffic lanes and stack snow at intermediate positions.

Introduction

Whenever service is necessary, your local dealer knows your plow best and is interested in your complete satisfaction. Return your snowplow to your local dealer for maintenance service or any other assistance you may require. If you are unable to do so, this troubleshooting guide should help you determine the problem. However, before attempting the servicing of your plow, you should possess good mechanical abilities and a total understanding of the mechanism.

PLEASE: Before calling parts and service personnel be certain that:

1. You have read this guide carefully and are certain that all of the suggestions pertaining to your problem have been attempted.

You have the following available:

Troubleshooting Quick Reference

- General

Check vehicle electrical system for proper operation.

1. Check all wiring to be sure that battery terminals are clean and connections to battery, fuse, solenoid, and all connectors on plow harness are clean and tight.

2. Check for external leakage at cylinders, hoses, and power unit.

3. Check the voltage at the coils which operate solenoid valves. For proper operation, ProControl system solenoid coils require a minimum of 10.5 volts DC, while earlier system coils require a minimum of 9.5 volts DC.

Check oil level in hydraulic system reservoir.

Lower Mode Of Operation - Gravity Down and Float

Actuating the ’Lower’ switch on the hand-held controller sends a signal to the control circuit board on the plow. This actuates the coil for the ’B’ valve and (if a down pressure plow) the ’F’ valve, allowing hydraulic fluid to flow from the lift cylinder to the reservoir.

Once the ’Lower’ switch has been actuated, the system will stay in this mode until the ’Raise’ function is actuated or control is shut off, allowing hydraulic fluid to flow between the reservoir and the lift cylinder. This allows the lift cylinder to extend and retract as necessary to follow ground contours while plowing.

Down Pressure (DP) System

This system operates only when both the ’DP’ switch and the ’Lower’ switch on the hand-held controller are actuated.

Actuating the ’DP’ switch actuates the pressure switch, the ’B’ valve coil, the ’E’ valve coil and, through the pressure switch, the start solenoid as required. When the ’E’ is actuated and the hydraulic pump operates, hydraulic fluid is directed to the rod end of the lift cylinder, retracting the cylinder and forcing the plow down.

The pressure switch in this system senses the pressure of the fluid in the lift cylinder and closes when the pressure becomes low, allowing the motor and the pump to pump fluid into the rod end of the cylinder. When the pressure reaches the proper level the switch opens, shutting off the motor and the pump.

The system is protected by a relief valve, which relieves excess pressure if the plow is forced up, such as by a bump or obstacle in the roadway. Once any obstacle is cleared, the plow can return to a lower position, which will also lower the pressure. If the pressure becomes too low, the pressure switch will activate the motor and pump as mentioned above to return pressure to normal levels.

The down pressure system is overridden any time the plow control is placed in the ’Raise’ mode, but will resume when placed back in the ’Lower’ position.

Also, note that the ’E’ valve is deactivated anytime an angle function is activated, but returns to its previous condition as soon as the angle function is completed.

Angle Left or Right Mode of Operation

Actuating the ’Angle Right’ switch on the hand-held controller sends a signal to the control circuit board on the plow. This actuates the start solenoid and the coil for the ’A’ valve, allowing hydraulic fluid under pressure to flow through the ’A’ valve to the swing cylinder. At the same time, the hydraulic fluid passing through the ’A’ valve unseats a check valve in the circuit for the ’D’ valve, allowing hydraulic fluid to flow from the opposite swing cylinder through the ’D’ valve and back to the reservoir.

Actuating the ’Angle Left’ switch on the hand-held controller sends a signal to the control circuit board on the plow. This actuates the start solenoid and the coil for the ’D’ valve, allowing hydraulic fluid under pressure to flow to the swing cylinder. This fluid also unseats a check valve in the circuit for the ’A’ valve, allowing fluid to flow from the opposite swing cylinder through the ’A’ valve and back to the reservoir.

The angle circuits are protected by a crossover relief valve set to relieve pressure on the circuit a 2000 PSI. If the blade of the plow contacts an obstacle during plowing operations, the crossover relief valves will allow fluid to flow out of the swing cylinder on the side encountering the obstacle, allowing the cylinder to retract and allowing the blade to adjust its angle to relieve the force from the outside.

Fuse

A fuse is located near the battery in the primary 12V DC positive power circuit and is in place to protect the electrical system against direct shorts. A high amp draw condition will cause the element in the fuse to interrupt current flow to the plow. The fuse will need to be replaced after interruption.

WIRING SCHEMATIC (Gravity Down System) With S.N. Before: 22G100200

WIRING SCHEMATIC (Down Pressure System) With S.N. Before: 22D102000

WIRING SCHEMATIC (Gravity Down System)

With S.N. After 22G200000

WIRING SCHEMATIC (Down Pressure System) With S.N. After 22D200000