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29

HYDRAULIC SCHEMATIC

(Gravity Down System)

UP

LEFT CYLINDER

RIGHT CYLINDER

CROSSOVER RELIEF

FLOAT

LEFT ANGLE

RIGHT 

RAISE

VALVE 2000 

VALVE

VALVE

VALVE

VALVE

RELIEF VALVE
1750 PSI

SCREEN (5 PLACES)

12VDC
MOTOR

PUMP

GP

C

A

D

B

C3

C2

C1

RAISE
CYLINDER

PSI

CROSS OVER RELIEF

VALVE 2000 PSI

ANGLE

PILOT OPERATED

CHECK VALVES

Содержание 22 Series

Страница 1: ...RIAL NUMBER AFTER 22G200000 FOR DOWN PRESSURE HYDRAULICS WITH SERIAL NUMBER BEFORE 22D102000 WITH SERIAL NUMBER AFTER 22D200000 Sno Way Down Pressure and EIS are registered trademarks of Sno Way International Inc ProControl MegaBlade V Wing E Z Switch Revolution MaxAdjust SpeedLock and QuickJack are trademarks of Sno Way International Inc 2014 Sno Way International ...

Страница 2: ...ransporting Vehicle With Plow Attached 19 Plowing Like A Pro 19 Using The Down Pressure DP Hydraulic Systems 20 Clearing Driveways 20 Clearing Parking Lots 20 TROUBLESHOOTING 21 Introduction 21 Troubleshooting Quick Reference 21 Troubleshooting Guide 21 THEORY OF OPERATION 27 Hydraulic Power Unit 27 Hydraulic Controls 27 Electro Hydraulic Operation 27 Raise Mode Of Operation 27 Lower Mode Of Opera...

Страница 3: ...he Pump Serial Number in the space provided below as a handy record for quick reference The Power Pack Serial Number is located on the A Frame driver s side near the front the Blade Serial Number is located on one of the middle ribs of the blade This plate contains information that your Dealer needs to answer questions or to order replacement parts if needed for your unit We reserve the right to m...

Страница 4: ...n 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 th...

Страница 5: ...minal of the battery and re connect the negative battery terminal 9 Spray all terminal connections with a battery terminal protective coating 10 Secure harness with plastic tie straps 11 Install truck control harness if needed using instructions included with controls 12 Remove the main light harness from the power pack carton Route the harness from the headlights to the front of the truck and thr...

Страница 6: ... bolts and locking nuts See Figure 1 4 The bolts and nuts are in the blade parts bag Figure 1 4 3 Lay blade face down on floor 4 Place swing frame on blade positioning the two inside ribs between the swing frame lugs insert a 3 4 x 1 5 8 clevis pin from blade parts bag to fasten each side See Figure 1 5 Figure 1 5 5 Insert washer on end of each clevis pin and secure with cotter pin NOTE Note Make ...

Страница 7: ...e into A frame Replace 3 4 bolt washer and lock nut Tighten hardware See Figure 1 8 and See Figure 1 9 Figure 1 8 Figure 1 9 12 Remove cotter pins clevis pins and spacers from rod end of cylinders Reconnect the power and control 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 ...

Страница 8: ...ly install two 1 4 x 1 screws with lock and flat washers through the front holes lens side of the light clamp and isolator into each plow light housing IMPORTANT If longer screws are installed in the front holes the reflective lens of the light will be broken 21 Loosely install two 1 4 x 1 1 4 screws with lock and flat washers through the rear holes back side of the light clamp and isolator into t...

Страница 9: ...s 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 2 Plug in power harness and remove controller from truck cab Plug controller into plow 3 Rotate light lift bar into position by turning on down pressure and pressing the lower button See Figure 1 15 SUBFRAME LIGHT LIFT BAR FRA...

Страница 10: ...ot 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 16 5 Unplug plow from control 6 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 17 Figur...

Страница 11: ...rs 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 CAUTION To avoid unnec...

Страница 12: ...linder lock clamp is tight against cylinder 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 PLOW CONTROL HARNESS PLOW LIGHTS CONNECTED TO TRUCK LIGHT HARNESS WARNING Always install the cylinder lock cl...

Страница 13: ...ale and female connectors on the truck light harness together See Figure 1 22 Figure 1 22 Figure 1 24 5 Turn Down Pressure ON and then OFF PLOW CONTROL HARNESS PLOW LIGHTS FROM DISCONNECT LIGHT HARNESS PLOW LIGHT CONNECTORS TRUCK LIGHT HARNESS CONNECTORS WARNING Failure to reconnect the main light harness on the truck when removing plow will cause truck lights to not operate which could cause an a...

Страница 14: ...e Make sure pin is engaged in hole by rotating jack stand back and forth 8 Remove controller from truck cab and plug into plow control harness Figure 1 26 9 Rotate jack stand down and raise A frame by pressing the up button See Figure 1 27 Figure 1 27 10 Disconnect power harness replace protective caps and back truck away from plow PIN HANDLE STRAIGHT OUT BELL CRANK JACK STAND LIFT LINK UPPER PIN ...

Страница 15: ...e 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 Plow Truck ...

Страница 16: ...m the rear of the light housing See Figure 2 2 Figure 2 2 2 To replace the High Beam bulb Release the bottom portion of the spring retainer from the socket base and lift the bulb from the light housing Disconnect the red lead from the bulb See Figure 2 3 Install a new H1 12VDC 55W Halogen bulb in the housing ensure it is properly indexed in the socket base install the spring retainer and connect t...

Страница 17: ...wire of the power harness and the black ground wire to the control receiver from the 3 8 screw in the center section of the power unit Disconnect the 12 pin connector of the power unit valve wire harness Remove the red black wire and the red wire of the power harness from the 5 16 terminal of the start solenoid Remove the red white wire and the brown wire from the 10 terminals of the start solenoi...

Страница 18: ...n the same location as before removal 13 Tighten the band holding the reservoir to 80 120 lb in torque 14 Rotate the power unit back into position Insert the two 5 16 cap screws Use new lock nuts and torque to 22 25 lb ft 15 Reinstall the electrical wires removed in step 4 16 Remove the lift cylinder hose s from the valve block Remove the swing cylinder hoses from the fitting in the valve block Ma...

Страница 19: ...isk shoe in the bracket Failure to do so will result in excessive wear of the holes in mounting bracket or bending of the disk shoe stem IMPORTANT Snap lynch pin ring over so that it contacts the pin If ring does not contact lynch pin rotate the pin and reverse the direction of the ring If the ring does not contact the pin it is not locked and could fall out Trip Spring Adjustment See Mechanical I...

Страница 20: ...der 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 2 Position the blade out of the beam path of the headlights before driving 3 Do not exceed 45 M P H when driving with the snowplow attached Braking dist...

Страница 21: ...he 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 Clearing Driveways 1 Head into driveway with the blade angled to move snow away from buildings Continue ...

Страница 22: ...ower should be present at all coils when plow power is plugged in and the control is turned on To check a function you are looking for a solid ground coming from the control receiver 6 To check if a ground is present use a test light connecting the wire lead from the test light to the ground wire in question on the plow touch the test light to the motor solenoids top post that the main battery har...

Страница 23: ... fluid Remove hydraulic fluid and tank Turn pick up tube so it is angled down to the bottom of the tank Down pressure valve E stuck open Check valve to make sure there in not magnetism on the E coil Remove the E valve and swap it with the F valve If the blade lifts your valve was stuck open Replace the valve Raise Valve C not functioning Check C coil for magnetism Remove the C valve and inspect Ma...

Страница 24: ...is would send ground to the wire If the ground is present the receiver black yellow box on snow plow will need to be replaced You should also check the OHM reading on the B coil as well as the other coils on the valve block If the OHM reading on the B coil does not read the same as the other coils replace the coil as well Piston seals leaking Internal on raise cylinder Raise the plow up in the air...

Страница 25: ... motor stops running and the down pressure now works the valve is sticking and needs to be cleaned or replaced Broken wire open circuit in down pressure electrical circuit Check wiring harness to make sure the connection had not been severed or shorted on to a different ground causing the pressure switch or float raise F valve to stay open Blade will not angle motor runs Hydraulic fluid level low ...

Страница 26: ...lve A or D not operating Swap the A or D valve out with the C raise valve and see if the angle function works If the problem moves to the raise function replace valve Angle cylinder binding or bent Visually inspect cylinder If it is damaged replace cylinder Crossover relief valve sticking or stuck Remove cross over relief valve and inspect Clean if possible or replace crossover relief valve Unit d...

Страница 27: ...is can be determined if there is oil leaking from the motor housing Remove the motor Drain the oil out of the reservoir and remove Remove the pump from the base Remove the pump seal Install new seal Reinstall all components removed Valve block cap screw loose Tighten cap screw Reservoir fasteners loose Tighten reservoir fastener or replace if damaged TROUBLESHOOTING GUIDE PROBLEM PROBABLE CAUSE CO...

Страница 28: ...plows One down pressure relief valve for down pressure plows Electro Hydraulic Operation All hydraulic functions are controlled by the 12V DC electrical system which energize coils on the hydraulic valve and the power unit motor start solenoid Control systems using this style controller Figure 3 1 when turned ON send 12V DC power to all valve coils Figure 3 1 ProControl and ProControl II systems F...

Страница 29: ...own 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 control...

Страница 30: ...ER RIGHT CYLINDER CROSSOVER RELIEF FLOAT LEFT ANGLE RIGHT RAISE VALVE 2000 VALVE VALVE VALVE VALVE RELIEF VALVE 1750 PSI SCREEN 5 PLACES 12VDC MOTOR PUMP GP C A D B C3 C2 C1 RAISE CYLINDER PSI CROSS OVER RELIEF VALVE 2000 PSI ANGLE PILOT OPERATED CHECK VALVES ...

Страница 31: ...LVE 2000 PSI CROSSOVER VALVE 2000 PSI DP RELIEF VALVE RIGHT ANGLE VALVE SYSTEM RELIEF 1750 PSI 12VDC MOTOR SCREEN 6 PLACES PUMP GP E F C A D B CK DP C4 C3 C2 C1 FLOAT DP VALVE RAISE FLOAT VALVE DP VALVE RAISE VALVE LEFT ANGLE VALVE RELIEF RELIEF RELIEF CHECK VALVE CHECK VALVE PILOT CHECK OPERATED VALVES 325 PSI 460 500 PSI ...

Страница 32: ...31 WIRING SCHEMATIC Gravity Down System With S N Before 22G100200 CONTROLLER STYLE ...

Страница 33: ...32 WIRING SCHEMATIC Down Pressure System With S N Before 22D102000 CONTROLLER STYLE ...

Страница 34: ...33 WIRING SCHEMATIC Gravity Down System With S N After 22G200000 PROCONTROL WIRED OPTION ONLY ...

Страница 35: ...34 WIRING SCHEMATIC Down Pressure System With S N After 22D200000 PROCONTROL WIRED OPTION ONLY ...

Страница 36: ...35 MAIN WIRING HARNESS SCHEMATIC Energy Interruption System ...

Страница 37: ...a Dryb SIZE lb ft lb ft lb ft lb ft lb ft lb ft lb ft lb ft 8 32 14 19 22 30 31 42 10 24 21 27 32 43 45 60 1 4 2 8 3 5 4 5 5 5 7 9 10 12 5 5 16 5 5 7 9 11 15 18 21 26 3 8 10 13 16 20 26 33 36 46 7 16 16 20 26 32 41 52 58 75 1 2 25 31 39 50 63 80 90 115 9 16 36 45 56 70 90 115 130 160 5 8 50 62 78 100 125 160 160 225 3 4 87 110 140 175 225 280 310 400 7 8 140 175 140 175 360 450 500 650 1 210 270 2...

Страница 38: ...Hartford WI 53027 USA Website www snoway com 2014 Sno Way International SNO WAY INTERNATIONAL INC ...

Страница 39: ......

Страница 40: ...nders hoses and fittings DO NOT leak Listen for abnormal noises or vibrations Repair or replace as necessary The Power Unit is properly filled DELIVERY CHECKLIST The following checklist is to be accomplished with the customer present Place an X in the box after accomplishing each item on the checklist After giving the Customer his Owner s Manual instruct him to read it PRIOR to operating the Snow ...

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