1-822R1 E-58H Shop Manual.pmd
Contents
1. 3 FIGURE 1 3 5 3AT1VA ONILSVO dNNS 5 H3MOI iT E 10 ONITONV H3MOd HIOAd3S3H OL NYNLJY 5 moma 00r 008 48199 99 1 09 0006 15 SN3dO 15 NON JAVA 531199 3905539 WM da 1 3A TVA 7 Sio _ 3 IONV PlOUZIOS 2 pue JOJO 4 H86 3 FIGURE 1 4 ELECTRO LIFT amp UNIT COMPONENTS E 58H UNIT COMPONENTS MOTOR 4 1 2 Iskra Two terminal The Iskra motor is a four pole electromagnet motor which consists primarily of a 4 1 2 diameter solid steel frame armature brushes field coils and pole pieces This motor can be used on vehicles with either the common negative ground electrical system or the positive ground electrical system HYDRAULIC PUMP The pump in a hydraulic system employs an external source of power to apply a force to a liquid A pump develops no power of its own It simply transfers power from an external source the electric motor on the E 58H unit to the liquid in the hydraulic system T2. FIGURE 3 26 FIGURE 3 27 Use a 15 16 hex deep socket to remove the P O Check Remove the P O Check valve assembly Clean by valve assembly used for angling soaking Check valve in cleaning solvent FIGURE 3 28 FIGURE 3 29 Use a 7 8 wrench or socket to remove filter plug Remove Filter Plug 30 DISASSEMBLY FIGURE 3 30 FIGURE 3 31 Remove the Filter Clean by soaking Filter in cleaning Use a 1 4 hex key or Allen Socket to remove the four solvent valve block mounting bolts FIGURE 3 32 FIGURE 3 33 Use a 1 4 hex key or Allen Socket to remove pilot valve Use a 11 16 Wrench or Socket to remove Crossover plug Relief Valve Bi DISASSEMBLY FIGURE 3 34 FIGURE 3 35 Remove Crossover Relief Valve There is one filter on the base assembly Remove filters with an 11 16 wrench FIGURE 3 36 FIGURE 3 37 Filters removed soak in kerosene before reassembling Before removing ram and piston assembly extend rod fully This drains out remaining oil in cylinder 235 DISASSEMBLY FIGURE 3 38 FIGURE 3 39 When disassembling the reservoir cylinder assembly Cover is removed from reservoir using a large screw use a 1 2 hex socket to remove the lock nuts The studs driver and hammer or mallet as shown tapping lightly usually unscrew from the base with the nuts around the top cap FIGURE 3 40 FIGURE 3 41 Remove ram and cylinder assembly from reservoir then Remove nuts baffle and retainer rings from studs and pull r
3. Many tests do not require removing the Electro Lift unit from the vehicle However more thorough testing can be performed using the Meyer Test Stand which allows direct pressure and amperage readings 1 Using a screwdriver or other small tool to check for magnetism of the solenoid coils and Place the tool on the nut securing the coil and have an assistant operate the switch You should feel strong magnetic attraction 2 Use a test light or volt meter to determine whether there is power at the harness 3 When determining AMP draw of the motor always obtain the highest value possible i e at maximum raise or maximum angle with motor running 4 Proper rotation for the motor is indicated by an arrow located on top side of the Part 15889 pump 5 The pump shaft of a good pump can be turned smoothly using two fingers If it can t be turn easily the pump is too tight and must be replaced 6 Pump pressure can be measured at an angle hose note pressure at full angle or in the pressure filter port an adaptor is necessary for the filter port Note The E 58H Unit has a non adjustable pressure relief valve 7 Flush the complete system including unit hoses and power angling rams with Meyer Hydra Flush Fluid M 2 The controller is self diagnosing The monitor light is located in the upper left corner next to the float light of the control switch When the monitor light turns on and begins to flash the control sw
4. C Coil have magnetism Green Wire Are C Valve O Rings in good condition Clean or replace the Crossover Relief Does the snow plow now angle Is there power leaving the switch Replace Harness Is there power to the C Coil Green wire at harness Replace the C Coil Retest Replace O Rings Replace both the Coupler sets and or clean or replace the C Valve Are the wires in molded connector making contact with the switch Replace Touch Pad Is there power leaving the switch Replace Harness Replace the P A Block Are the wires in molded connector making contact with the switch Replace Touch Pad SNOW PLOW WILL NOT HOLD ANGLE NO Does the moldboard Are the C Valve hold left angle amp release O Rings in poor from right angle condition Are the Rams mushy Can you push the moldboard 6 to 8 by hand Are Crossover O Rings in good condition Replace Crossover O Rings or complete Crossover Bleed air from the system and snug up gland nuts Check couplers and fittings for leaks Replace the Replace O Rings P A Block Inspect Crossover Relief Rebuild or Replace Replace the Does snow plow now Block hold angle Inspect C Valve O rings Change Pilot Check Change if necessary Does Ball and Seat does snowplow now hold 18 snow plow now angle E 58H Wiring Rectangular harness w touchpad Round harness w p
5. E 58H ONLY SNOW PLOW LEAKS DOWN to the left Replace B Check Valve Does it now hold Replace O Rings Replace A Valve Dissasemble unit Inspect O Rings Cylinder Piston Assembly Does it hold now Replace Sump Base Replace B Valve Does it now hold Replace Sump Base Replace Sump Base SNOW PLOW WILL NOT LOWER Is the Touchpad plugged in completely Is there power leaving Is there power to the the switch at the Does A Coil Black Wire have magnetism Replace A Valve Does it now lower A Coil Black Wire at harness Check for a clogged filter or a blocked passageway Lower Adj Screw Black Wire Replace Harness Check for Bent or Siezed Ram Assembly 16 Touch Replace the fuse Check for short in harness A Coil Plug connections Can the snow Raise Does the motor run when angle switch is pushed Does the snow plow raise instead of angling left Clean or replace the B Valve Retest See the Raise Flow Chart Section 15 there power to the motor solenoid White Wire Does the snow plow angle to the right the angle left switch is pushed Clean or replace the C Valve Retest E 58H ONLY Is there power leaving the switch Replace Harness 15 the ampere draw less than 100 amps while trying to angle Is the Pilot piston in good condition worn sloppy or missing YES Are C
6. To activate the Forward Plowing Mode when HFP is already on press the HFP button once The moldboard will automatically lower when you put the truck into drive When you reach the end of a run the moldboard will automatically raise when you put the vehicle in reverse To turn the HFP feature off press the HFP button until you see the HFP light go off This switch is self diagnosing The monitor light is located in the upper left corner next to the float light of the control switch When the monitor light turns on and begins to flash the control switch is sensing a problem with a specific coil connection on the hydraulic unit The label below is on the back side of your control switch Reset is accomplished by turning off the ignition switch or by turning the power switch off momentarily and then back on If the monitor light is still illuminated after attempts to reset the switch have failed contact your nearest authorized Meyer Distributor for repairs 38 HYDRAULIC SPECIFICATIONS ELECTRICAL SPECIFICATIONS MOTOR ISKRA AMJ4739 12V No load motor not attached to pump NOTE Do not operate motor continuously for more than 30 seconds Applied Voltage 12 Volts DC Max Current Draw 150 Amperes Speed Min 3 200 RPM Under load pump operating in relief NOTE Do not operate motor continuously for more than 5 seconds Applied Voltage 12 Volts DC Max Current Draw 230 Amperes SOLENOID VALVES B and Applied Vo
7. cap screw head See POST SEASON MAINTENANCE on page 3 FIGURE 3 52 FIGURE 3 53 Insert small O ring into the Crossover cavity of the Insert larger O ring into the Crossover cavity until it sitting Block Make sure small O ring fits flat in the bottom of flat on its landing the cavity 36 REASSEMBLY FIGURE 3 54 Use a 11 16 Wrench or Socket to tighten Crossover Relief Valve FIGURE 3 55 Remove motor from hydraulic unit Remove top cap from motor housing To replace brushes part 15854 start by pushing each brush assembly towards the commutator Remove old assembly from the insulated mounting plate removing retaining screws Replace with a new brush assembly by reversing the above procedure It is recommended that each brush be changed in turn to avoid confusion make sure that each brush assembly is replaced with the correct part that has the brush cable on the the same side Service Kits consist of 2 matching pairs of brush assemblies 37 INSTALLATION INSTRUCTIONS When installing motor solenoid part number 15370 per form number 1 841 or If motor solenoid is already installed on the vehicle the enclosed diode part number 15059 must be connected to the small terminal with white wire of the motor solenoid and to the motor solenoid mounting bracket as shown below Note Motor Solenoid must have a good ground in order to operate properly The 22717 control adapter shown below is only needed when replacing a 22154 Tou
8. position is closed Its energized position is open The B Cartridge contains a spool valve whose energized position allows the pressurized hydraulic fluid to flow to the lift cylinder raising the plow The B Cartridge de energized position retains the hydraulic fluid in the lift cylinder holding the plow up C Solenoid Valve 58 amp E 78 only The Solenoid valve is used on the E 58H hydraulic unit for power angling The Cartridge contains a spool valve whose static de energized position allows the pressurized hydraulic fluid to flow to the right power angling cylinder which angles the plow to the left At the same time it allows the hydraulic fluid being forced from the retracting left power angling cylinder to flow through the C Cartridge back to the reservoir In the energized position the pressurized hydraulic fluid is diverted to the left power angling cylinder angling the plow to the right Also the hydraulic fluid being forced from the retracting right power angling cylinder flows through the C Cartridge back to the reservoir CHECK VALVES Check valves are very simple devices that have two basic functions They prevent fluid from passing through them in one direction but they allow fluid to pass through them in the opposite direction In the E 58H a pump check valve is used to prevent hydraulic fluid from leaking back through the pump to the reservoir The E 58H unit
9. valve again POPPET VALVE PUMP HOUSING INLET 1 6 Under condition such as when hydraulic cylinder is extended to the end of its stroke eliminating additional space for the pressurized hydraulic oil to be pumped into the alternate opening and closing of the poppet valve controls the pump s pressure output and provides an escape for the pressurized hydraulic fluid The pressure relief valve used in the E 58H pump while more sophisticated than the one described functions in the same manner The pump pressure relief valve may be adjusted to the specified pressure of 2000 by adjusting the set screw after installing a suitable pressure gauge of 2500 in the circuit SOLENOID VALVES Hydraulic valves are simple in concept and all have the same basic function Control the direction of oil flow Each Solenoid Valve consists of two components the Cartridge and the Coil Cartridge The Cartridge consists of the hydraulic valve mechanism and an armature which enables the valve mechanism to be operated and controlled electrically The Cartridge is designed to screw in and out of the E 58H units much like the typical spark plug Coil WINDING COIL ARMATURE FIGURE 1 7 ELECTRO LIFT UNIT COMPONENTS CONT The Coil is the electrical component which operates the Cartridge s valve mechanism by producing magnetism which pulls the Cartridge s armatur
10. Assy 12 volt Motor 12 Volt 2 Terminal Pump 55 e Kit Pump Relief Valve Relief Valve Assy Plug w O Ring Seal Kit Relief Valve Pump Shaft Seal Head 5 16 18 x 1 3 4 Cylinder Tank O Ring 3 1 2 I D O Ring 1 15 16 I D O Ring 1 1 8 I D Cover amp Seal Assy e Wiper e O Ring 3 1 2 1 0 e Sleeve Pressure Relief Valve Kit e Reducer Bushing 1 4 x 1 8 e Pressure Relief Valve Cylinder Washer Grooves Down Ram Assembly e Ram e Piston e Piston Follower e Spacer e Packing Cup e O Ring 7 16 I D e Locknut 1 2 13 Base amp Strainer Assy e Strainer Filter Kit 9 16 Filter Plug w O Ring 9 16 Stud Baffle Retainer Ring Pump Check Valve Kit O Ring 3 8 I D Seat Ball 9 32 Spring O Ring 1 4 1 0 Drain Plug w O Ring 9 16 O Ring 5 8 I D Washer 5 16 Locknut 5 16 24 6 6 5 50 8 58 8 6 5 5 8 8 8 8 88 9 5 Il Valve Assy w Coup 12V Coupler Female Half Coupler Male Half A Solenoid Assembly Coil 12V A Cartridge Valve e Seal Kit A Valve B Solenoid Assembly Coil 12V B Cartridge Valve eee Seal Kit B Valve Kit B Check Valve B Check Valve Nut O ring O ring B Valve Check Body B Valve Check Ball holder Sprin
11. Coil removed from the Cartridge pliers 25 DISASSEMBLY FIGURE 3 10 FIGURE 3 11 The A Cartridge is removed using a 7 8 hex deep The A Cartridge is removed Clean by soaking socket cartridge in cleaning solvent FIGURE 3 12 FIGURE 3 13 Remove the B Coil The B Cartridge is removed using a 7 8 hex deep socket 26 DISASSEMBLY FIGURE 3 14 FIGURE 3 15 The Cartridge is removed Clean by soaking Use a 7 8 wrench or socket to remove the B Check cartridge in cleaning solvent Valve Nut FIGURE 3 16 FIGURE 3 17 Remove B Check Valve Nut Retrieve the Check Valve 27 DISASSEMBLY FIGURE 3 18 FIGURE 3 19 Use a magnet to retrieve the B Check Valve Poppet Retrieve the B Check Valve Spring The B Check valve poppet has been replaced by a ball See Service Bulletin 214 The B Check valve replacement kit is part number 15959 FIGURE 3 20 FIGURE 3 21 Remove the C Coil The C Cartridge is removed using a 7 8 hex deep 28 DISASSEMBLY FIGURE 3 22 FIGURE 3 23 The C Cartridge is removed Clean by soaking Use a 15 16 hex deep socket to remove the P O Check cartridge in cleaning solvent valve assembly used for angling FIGURE 3 24 FIGURE 3 25 Remove the P O Check valve assembly Clean by Remove the Pilot Piston amp Spring underneath soaking Check valve in cleaning solvent Piston 29 DISASSEMBLY
12. FORM 1 822R1 May 2011 E 58H power unit service manual nnn AN E 5BH 4 207i Meyer Products LLC 18513 Euclid Ave Cleveland Ohio 44112 1084 Phone 486 1313 Area Code 216 www meyerproducts com email infotco meyerproducts com 2011 Printed in the U S A FOREWARD This Service Manual includes complete information for servicing the following Electro Lift Units E 58H IMPORTANT Maintenance and repairs must be performed with the moldboard on the ground The information is grouped according to the type of work being performed such as diagnosis and testing disassembly and reassembly Special tools and specifications are also included in this manual All information illustrations and product descriptions contained in this manual are correct at publication time We do however reserve the right to make changes at any time without prior notice Section Number 0 oR MEYER PRODUCTS INC SECTION INDEX SEON TIUO GENERAL INFORMATION AND MAINTENANCE E 1 GENERAL DESCRIPTION AND THEORY OP OPERATION 4 BC 14 REPAIR 0050 20 CONTROLLER TROUBLESHOOTING 38 SPECIFICATIONS 4 2 2 2 1 39 Meyer Products Inc reserves the right under its continuing product improvement program to change constr
13. O SSOHO CE e o gt EE LON JAVA 0S 0002 15 SN3dO NON JAVA daria aunssaud E p pue 1010 8 A18N3SSV SATIVA NYNLSY 5 dNNS pum 1 qazibHiN3 SYSCNINAD ONITONV m Jg NS 2 20 01 65 20 m 008 0088 44199 5 m gei iR a z 09 0006 1e SN3dO NON 554 o Q32I9 H3N3 1HOd ION g 750 2 MOSH H3MOT 5 49M07 H8S 3 FIGURE 1 2 A18N3SSV 3AT1VA 5 5 dNNS INAWLSNPAV LON HlOAd3S3H OL 527 154 00 0086 ANWA 33l 13d d3AO SSOHO Y 09 0006 15 SN3dO 5 NON JAVA 33139 5 Iaaziog8iN3 LA onion NO 14313 IONV Ajuo 1010 2
14. R 9 RELIEF VALVE 9 SOLENOID 9 10 dE 9 10 ge 84 9 10 A _______ 11 i i IEEE T MET 11 MG ELIT TM 14 11 POTOA KVAN E _ _____4 ____ 11 12 Nm 12 PIETERS 12 GENERAL DESCRIPTION E 58H unit is an electrically powered and electrically controlled hydraulic mechanism specifically designed for use with Meyer Snow Plows The E 58H raises and lowers the plow with an integral 8 stroke hydraulic cylinder In addition to raising and lowering the plow hydraulically the E 58H angles the plow hydraulically left and right via remote hydraulic cylinders The Electro Lift unit consists of a specially designed high torque 12 volt DC motor which is directly coupled to a gear type hydraulic pump The pump obtains its supply of hydraulic fluid from an integral reservoir which totally surrounds the integral hydraulic cylinder which raises and lowers the plow The E 58H includes an integral valve body which contains three electrically controlled solenoid valve cartridges Solenoid valve cartridge A which is energized to allow the plow to lower by gravity Solenoid valve cartridge is energized to route the pressurized hydraulic fluid to the integral hydraulic cy
15. TESTING TIPS RAISE Troubleshooting LEAK DOWN Troubleshooting LOWER Troubleshooting ANGLE LEFT Troubleshooting ANGLE RIGHT Troubleshooting WILL NOT HOLD ANGLE Troubleshooting 19 58 14 14 15 16 16 17 18 18 DIAGNOSTIC FLOW CHART FOR E 58H Unit These charts are intended to be used as an aid in diagnosing problems on the E 58H unit They are not a substitute for factory training and experience Be certain to read the General Information and Testing Tips sections before attempting any troubleshooting IMPORTANT Maintenance and repairs must be performed with the moldboard on the ground General Information Before any troubleshooting is started make certain the following conditions are met 1 The moldboard is pointing straight ahead This can often be done by coupling the left cylinder into the right cylinder and pushing the moldboard by hand 2 The power angling cylinders must be installed correctly on to the plow assembly The left cylinder Driver s side has a hose attached with a female half of a coupler at the end the right cylinder Passenger side has a hose attached with a male half of a coupler at the end 3 The solenoid wires must be on their proper coil The coil black and tan wires on power angling block labeled BLK The B coil red and tan wires on power angling block labeled RED The C coil green and tan wires on power angling block labeled GRN TESTING TIPS
16. Valve O Rings in good condition YES Clean or replace the Crossover Relief Does the snow plow now angle 37 Is Touchpad plugged in completely Replace Touch Pad Can the snow plow be angled by hand when the P A Rams are disconnected Replace Piston from A Frame Will the snow plow angle right amp left if not allowed to travel to extreme angled position Replace O Rings Replace the P A Block emporarily put 1 2 blocks between the Sector and Frame to limit the degree of angle Will the snow plow now angle Weld 1 1 2 x 1 1 2 x 1 2 spacers to the A Frame stops Relieve SNOW PLOW WILL NOT ANGLE LEFT the interference between the Sector and A Frame If both hoses are stiff inspect the Pilot Check Piston and C Valve for binding NO Does pressure remain in angle hose when the motor NO Replace both the Coupler sets and or clean or replace the is not running YES If one hose is stiff inspect the the C valve for binding Replace Coupler sets C Valve E 58H ONLY SNOW PLOW WILL NOT ANGLE RIGHT Can the snow plow Raise Does the motor run when angle switch is pushed Does the snow plow raise instead of angling left Clean or replace the B Valve Retest See the Raise Flow Chart Section Is there power to the motor solenoid White Wire Can the snow plow angle to the Left Does the
17. am out of cylinder Worn packing cup on piston screw the studs into the base Clean reassemble Sump should be replaced if cloth backing is visible Base in reverse order 33 REASSEMBLY FIGURE 3 42 FIGURE 3 43 Clean all paint from ram then slide the cylinder over the Install cylinder assembly carefully being certain it seats ram piston assembly using a rubber or leather mallet squarely on O ring in base Assemble O Ring and Washer as shown FIGURE 3 44 FIGURE 3 45 Reinstall reservoir using mallet to seat reservoir Install cover assembly using mallet to seat cover making squarely certain filter plug is properly located next to the electric motor 34 REASSEMBLY FIGURE 3 46 FIGURE 3 47 Drain plug and filters to be torqued to 75 85 in Ibs with Torque the bolts to 100 125 in Ibs using a 1 4 hex key an 11 16 hex socket Remove nuts from pump studs and or Allen Socket screw into base FIGURE 3 48 FIGURE 3 49 Use a flat tool to hold the pump check valve in place and To reinstall motor align pump shaft quill and motor shaft assemble pump Torque the pump to 100 125 in Ibs with appropriate bolt holes using a 1 2 hex socket on the locknuts 35 REASSEMBLY REFILL UNIT WITH MEYER M 1 HYDRAULIC FLUID FIGURE 3 50 FIGURE 3 51 Torque cap screws to 45 55 Ibs then apply Permatex Follow instructions under Form A Gasket No 2 or equivalent sealant around Replacement of Hydraulic Fluid each
18. areful not to damage the shaft or pump housing Liberally coat the replacement seal 1 0 with hydraulic fluid and apply a very light film of Permatex Form A Gasket No 2 or equivalent to the replacement seal O D Carefully slide the replacement seal metal side up over the shaft until it is squarely against the pump housing Center a 11 16 hex deep socket over the seal and use it and a plastic or leather mallet to squarely drive the seal into the pump Replace the motor as shown in Figures 3 49 amp 3 50 page 35 36 1 orque to 100 125 47 46 Caution Torque to 100 125 in Ibs Caution Torque to GROOVES FACE DOWN Caution Torque to 23 100 125 in lbs Caution Torque to 75 85 in 105 94 Exploded View Cross Over Relief Valve 5 0 NON ADJUSTABLE 100 FIGURE 3 1 0 102 22 PARTS BREAKDOWN PARTS LIST ITEM PARTNO DESCRIPTION n PART NO DESCRIPTION 1 15869 2 15727 3 15889 4 15874 5 15870 6 15878 15875 15877 22339 15204 15131 15163 15198 15738 05119 15131 15737 08473 21805 21806 15205 15209 15761 15206 15158 15219 15760 15162 15125 20316 15980 15326 15641 15619 21999 15203 15621 21980 15574 15124 15354 15603 15604 15122 21999 15127 21929 20697 1 1 1 1 1 1 1 1 3 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 3 1 2 1 1 1 1 1 3 2 1 3 3 Pump amp Motor
19. ation or Filter port the proper direction replace motor Does the snow plow angle to the left f raisina Angle Switch 6 9 is activated Clean or Replace Filters Is the A Valve stuck in the open position YES Disassemble unit Inspect O rings Clean or Replac C lief Is the pump Does the motor Cylinder Piston pump 2 5 pressure be adjusted shaft turning armature turn Look for blockage to 2000 P S I tightly tightly in Sump Casting passages Does snow plow raise Replace Repair or Replace the the motor Pump NO Is there power to Are wires in the B Coil Is there power molded connector Red Wire leaving the switch making contact at Harness at the red wire with the switch Does the Coil Red Wire have magnetism YES Are the B Valve NO O Rings good 5 Condition O Rings Replace Heplace B Coil the wiring harness Replace Replace Touch Pad YES Replace Block N Clean or NO with E 46 plate and 9 Replace Replace the retest Does snow Sump Base P Valve plow Raise now and retest Replace P A Block 15 Does the snow plow drop straight down Are A Valve O rings in good condition Does A Valve stem move freely Dissasemble unit Inspect O Rings Cylinder Piston Assembly Does it hold now Does the snow plow drop and angle
20. ceives its low amperage current at the proper times via the wiring harness This solenoid must be grounded to operate properly FILTERS Cleanliness is perhaps the single most important ingredient in assuring a hydraulic system s reliability Should the hydraulic fluid become contaminated malfunction and permanent damage to the hydraulic system may occur For this reason all the E 58H units are equipped with a filter system consisting of 215 Afine screen strainer on the reservoir pump inlet high pressure filter on the pressure side of the pump return filter on the power angling block leading back to the reservoir With this system the hydraulic fluid is filtered as it leaves the reservoir on its way to the pump and on the Power Angling units filtered again as it leaves the pump Because clean hydraulic fluid is most important to insure Solenoid Valve reliability the hydraulic fluid leaving all cylinders is filtered before passing returning to the reservoir The filter screen high pressure and return filter are easily removed for periodic cleaning or replacement IMPORTANT Should the hydraulic fluid become contaminated it will be necessary to replace all the hydraulic oil in the system The complete system hydraulic unit power angling cylinders mount cylinder and hoses should be flushed Flush the system with Meyer Hydra Flush Fluid M 2 SECTION 2 DIAGNOSIS CONTENTS GENERAL INFORMATION
21. chpad The orange wire of the adapter can be connected to the orange wire on the back of the plow light switch The plow light switch could then be removed along with the black and red wires which were connected to the plow light switch When the controller is turned on it will activate the snow plow lights When the controller is turned off or removed from the harness this will activate the vehicle headlights 4 Post Motor Solenoid To 22690X Controller 22717 Adapter To vehicle harness Blue wire to HFP ALM ARM reverse signal On Off To orange wire from plow light switch Imprinted on backside of Controller Raise Systems Monitor Float LED Read Out Light Flashes Check Coil wire Color Angle Left Monitor Continuous Light Motor Solenoid 1 Light Flash Red Lower Angle Right 2 Light Flashes Black 3 Light Flashes Green 4 Light Flashes Yellow 5 Light Flashes Lt Blue 6 Light Flashes Purple SNOW PLOW CONTROLLER OPERATION The snow plow should only be in operation when the vehicle ignition switch and the control switch are in the ON position Care should be taken to insure that the control switch is kept dry and free from moisture during normal operation When the control switch is turned On lights illuminate the location of the individual touch pads for the functions of the snow plow Up Angle Left Angle Right and Down Lowering of the snow plow an inch at a time is po
22. e toward it Since the armature is connected to the valve mechanism s only moving part it is pulled by the armature Figure 1 7 illustrates the typical Coil Whenever electrical current flows to the Coil it flows through the winding which consists of numerous turns of copper wire The flow of current through the winding produces a magnetic field which pulls the soft iron armature further into the Coil The armature pulls the valve spool or poppet valve into its alternate energized position Not illustrated is an integral coil spring which is compressed when the armature is pulled by the magnetism When the current flow ceases the magnetic field disappears and the compressed coil spring pushes the armature back to its original de energized position Solenoid Valve E 58H The Cartridge contains a poppet valve whose static or de energized position is closed energized position is open The Solenoid Valve retains hydraulic fluid in the lift cylinder is energized opened to allow the hydraulic fluid to flow from the lift cylinder back to the reservoir enabling the plow to lower by gravity The A Solenoid Valve is designed to remain energized open while the plow is lowered plowing snow This is the float feature which insures that the plow maintains contact with the ground contour B Solenoid Valve E 58H The Cartridge contains a poppet valve whose static or de energized
23. e previously described pump relief valve It s designed to open at a specific pressure In this instance the pressure is not produced by the pump but rather by the damaging force As an example assume that the right corner of the plow runs into the end of a curb The impact will attempt to collapse the right power angling cylinder As a result very high hydraulic pressure is produced within the cylinder When the produced pressure is high enough it opens the crossover relief valve allowing the highly pressurized hydraulic fluid to flow directly to the left power angling cylinder When the crossover relief valve functions in this manner the excessive pressure is released the excessive energy produced by the impact is absorbed and the result is only a change in angled position of the plow The crossover relief valve is factory set to the specified pressure of 3800 400 this setting is non adjustable SOLENOID SWITCH The E 58H motor requires more current or amperage to operate than the vehicle wiring vehicle ignition switch or toggle switches have the capacity to handle The solenoid switch is essentially a heavy duty switch with the capacity to handle the heavy current required by the motor It is closed electrically by the solenoid to convey the heavy current directly from the vehicle battery via heavy gauge electrical cable The solenoid which functions essentially the same as the previously described solenoid valves re
24. g Solenoid Assembly Coil 12V Cartridge Valve Seal Kit C Cartridge Kit Needle Valve Lower Adj O ring Needle Valve Needle Valve Retaining Ring Nut M6 x 1 2 nut Kit Dual PO Check Valve e e Check Valve Assembly PO Pilot Spool Spring Kit Block Filter Tank Filter M16x1 Filter Cap Kit Crossover Valve O ring O ring O ring w Glyd Ring Poppet Plug Soc Head 5 16 18 x 1 1 2 Parts indented are included in assembly under which they are indented Parts included in Master Seal Kit Part No 15969 E 58H Basic Seal Kit Part No 15254 Pump Relief Valve 2 2000 50 PS I full flow Non Adjustable Crossover Relief Valve 3800 400 2 1 2 G PM Non Adjustable 24 DISASSEMBLY FIGURE 3 2 FIGURE 3 3 To drain oil from the unit remove the drain plug using a Drain Plug removed 11 16 wrench FIGURE 3 4 FIGURE 3 5 To replace the motor remove the two cap screws use a Hold the motor parts together while removing it from the 10mm hex socket pump 24 DISASSEMBLY FIGURE 3 6 FIGURE 3 7 To remove the pump Use a 1 2 hex socket on the three Pump removed from the unit base locknuts The studs usually unscrew with the nuts FIGURE 3 8 FIGURE 3 9 Remove the Coil using your hand or carefully use
25. he basic operating principles of the hydraulic pump used in the E 58H units are quite simple Figure 1 5 illustrates the basic components of a positive displacement gear type pump and their functions The pumping action takes place within the pump chamber which is connected to the reservoir by the intake line The pump chamber has an outlet line in which the liquid under motion and pressure leaves the pump to perform Work RESERVOIR ELECTRIC MOTOR INTAKELINE 7 DRIVEN GEAR DRIVE GEAR OUTLET LINE PUMP CHAMBER PUMP HOUSING FIGURE 1 5 PRESSURE RELIEF VALVE A basic pressure relief valve is shown in Figure 1 6 It consists of a poppet valve and a valve spring Both are located in a passage which connects the inlet passage to the outlet passage The poppet valve is normally held closed by the valve spring sealing the connecting passage from the pressurized outlet passage The poppet valve being a piston is exposed to the pressurized hydraulic fluid in the outlet passage Whenever the hydraulic pressure against the poppet valve becomes greater than the pressure being exerted on the poppet valve from the opposite 10 direction by the valve spring the poppet valve will open This allows some of the pressurized hydraulic fluid to flow through the connecting passage to the non pressurized inlet passage The effect is to lower the pressure in the outlet passage which will allow the valve spring to close the poppet
26. istol grip Red ee Pat Ground Vehicle Side To Motor Stud Positve A2 Ground Connection Motor Stud D1 Drivers Side Plow Light To Passenger Side Plow Light Black B Blue Reverse ae Signal Se Black Ground C Harness g To Plow Light Orange to Light harness of light modules Adapter 19 B Harness Power Ground Park amp Turn To Motor Stud Positve A2 Ground Connection Motor Stud D1 To Passenger Side Plow Light Drivers Side Plow Light See page 38 for diode wiring on motor solenoid 19 SECTION 3 REPAIR PROCEDURES CONTENTS GENERAL INFORMATION 2 idees 21 UNIT DISASSEMBLY AND REASSEMBLY 21 21 pizzerie 21 Additional Reassembly Points 21 POMP t m 21 Shaft Seal Replacement 21 58 ELEC RO Exploded VIEW seer ner rere eae eet 22 Parts Breakdown 23 Disassembly Photos 24 33 Reassembly Photos 34 37 BRUSH REPLACEMENT Iskra Brush Replacement 37 CONTROLLER OPERATION ieiuna tomi 38 SPECIFICATIONS een 39 20 GENERAL INFORMATION Using the proper guidelines and precautions the E 58H unit
27. itch is sensing a problem with a specific coil connection on the hydraulic unit The label below is on the back side of your control switch Reset is accomplished by turning off the ignition switch or by turning the power switch off momentarily and then back on If the monitor light is still illuminated after attempts to reset the switch have failed contact your nearest authorized Meyer Distributor for repairs 14 E 58H ONLY SNOW PLOW WILL NOT RAISE Is there power Are all electrical NO Charge Battery Does the Motor going to connections clean Clean and tighten Operate the motor and tight all electrical Is Battery Charged Connections Is there power Remove motor Inspect Motor Is there power leaving the Does motor run when Armature Brushes going to the switch Check Wires at 12 volts is applied Repair or Replace motor solenoid Check switch Molded connector YES YES C Is Ground Cable Replace Fuse an the pump attached to the Check for short shaft turn by Negative Replace the Replace the Is the Fuse in Harness hand Battery Terminal Motor Wiring OK B Coil Switch VES Solenoid Harness Connections Motor Solenoid Electric Motor Replace pump Replace the Touch Pad Is the fluid levell NO 1 1 2 below filler hole i YES NO Does the snow plow Is there pressure NO Check Brushes for angle when the or flow at the Is the motor turning proper install
28. linder to raise the plow Solenoid valve cartridge C is energized to route the pressurized hydraulic fluid to the left remote hydraulic cylinder to angle the plow to the right When all cartridge are not energized and the motor is running the pressurized hydraulic fluid will flow to the right remote hydraulic cylinder to angle the plow to the left Additional components which control and supply electrical current to the E 58H units are an operator controlled Touchpad or Pistol Grip controller a solenoid switch to supply high amperage current to the unit s motor motor solenoid valve cartridge s and short heavy gauge cables to distribute high amperage current directly from the positive terminal of the vehicle s battery and ground the unit directly to the negative terminal of the vehicle s battery THEORY OF OPERATION FUNCTIONS Refer to Figures 1 1 through 1 4 pages 6 thru 9 for electrical and hydraulic flow chart for each function Each figure explains which component is actuated and related in each function The E 58H four basic functions performed are Raise snow plow Lower snow plow Angle snow plow to right Angle snow plow to left 55 dNNS aazioH3Na LON SYAGNITAO ONITONV HlOAd3S3dH Nan L3d LAN FIGURE 1 1 154 008 0086 33199 d3A
29. ltage 12 Volts DC Current Draw 1 5 Amperes Nominal resistance ohm meter lead connected to coil lead 8 0 ohms 1096 MOTOR SOLENOID Applied Voltage 12 Volts DC Max Current Draw 5 Amperes Nominal resistance ohm meter lead connected to coil lead other meter lead connected to metal foot 2 65 to 4 5 ohms HYDRAULIC SPECIFICATIONS PUMP Pressure Output E 58H Non Adjustable 2000 PS I CROSSOVER RELIEF VALVE Opening Pressure 3800 400 PS HYDRAULIC FLUID CAPACITY NOTE 1 Quart 32 Fluid Ounces Model E 58H Unit 1 qt 4 5 oz 36 5 oz Hoses amp 1 1 2 x 10 Cylinders 16 oz Total 1 qt 20 5 oz 52 5 oz TORQUE SPECIFICATIONS Thread Torque Size in lbs Reservoir Cover Retaining Nuts 5 16 24 100 125 Pump Assembly Retaining Nuts Bolts 5 16 24 100 125 End Plate or Valve Block Retaining Cap Screws 5 16 18 96 120 Motor to Pump Retaining Cap Screws 1 4 20 45 55 Drain and Filter Plugs 1 2 20 75 85 39 ELECTAHO LIFT E 58H power unit service manual Meyer Products LLC 18513 Euclid Ave Cleveland Ohio 44112 1084 Phone 486 1313 Area Code 216 ww meyerproducts com email info meyerproducts com 2011 Printed in the U S A
30. n almost constant viscosity from normal to sub zero temperatures Because it remains free flowing at extremely low temperatures the performance and efficiency are not affected Meyer Hydraulic Fluid M 1 also contains an additive which neutralizes moisture accumulating in the fluid due to condensation It is effective for a maximum of one year s use Meyer Products Inc will not be liable for damages resulting from the use of inferior or other fluids or oils FIGURE 0 1 Filter Plugs Replacement of Hydraulic Fluid After a season s use completely drain the hydraulic fluid including hydraulic fluid in hoses and cylinders Drain fluid through filler hole shown in Figure 0 1 or drain hole in base by completely retracting lift rod and unbolting unit to pour fluid out or using a suction pump Disconnect the fittings at the Angling cylinders and completely retract the cylinder rods and purge cylinders and hoses of all hydraulic fluid Flush the complete system including unit hoses and angling rams with the M 2 Flushing Fluid or a non wax Napthenic cleaner If kerosene Parrafinic is used to flush the system the system must be flushed again to remove any kerosene with M 2 Flushing Fluid or a Napthenic based cleaner that is wax free Refill E 58H unit with M 1 Fluid by fully retracting lift rod Ram and filling reservoir to 1 1 2 below the filler hole Fill and bleed hoses and Power Angling cylinders by loosening hydra
31. name plate decal underneath the plastic cover ADJUSTABLE DROP SPEED SEALED COILS amp CONNECTORS Serial MAINTENANCE The following maintenance information is intended as a basic guide for providing the E 58H unit with the proper service and care Sustained heavy duty operation or operating under adverse conditions may necessitate more frequent servicing General Maintenance Cleanliness The greatest enemy to any hydraulic system is dirt or contamination Therefore cleanliness must be stressed at the time of installation servicing and repairing Vehicle Electrical System Maximum performance and efficiency of the Electro Lift unit requires that the vehicle s electrical system be properly maintained and consist of Battery 70 Amp Hr Minimum or 550 Cold Cranking Amps Alternator 60 Amp Minimum Check Regularly 1 Battery Terminals Must be clean and free of corrosion 2 Electrical Connections Must be free of corrosion and tight 3 Battery Must be in first class condition 4 Alternator or Generator and Regulator Must be functioning to specifications 5 Hydraulic Fluid Reservoir Level A significant drop in hydraulic fluid level indicates a leak which must be located and corrected Insufficient hydraulic fluid may result in severe damage POST SEASON MAINTENANCE Meyer Hydraulic Fluid M 1 Meyer Hydraulic Fluid M 1 is a specially formulated mineral oil which maintains a
32. s are easy to disassemble and reassemble Figure 3 1 is an exploded view which applies to the E 58H It should be used as the primary reference for proper reassembly Where necessary this section includes additional information photographs and illustrations to assure proper and efficient repairs UNIT DISASSEMBLY AND REASSEMBLY Many repair procedures including removal and replacement of the B and Solenoid Valves can be accomplished without removing the unit from the vehicle While Figures 3 2 through 3 54 show the unit clamped in a vise make all possible repairs on the vehicle when possible NOTE Pump Assembly should not be disassembled since it cannot be serviced with the exception of the pressure relief valve pages 25 and pump shaft seal which is covered separately in this section Disassembly See Figures 3 2 through 3 41 pages 24 33 Reassembly See Figures 3 42 through 3 54 pages 34 37 for important reassembly points Additional Reassembly Points O Rings Coat liberally with hydraulic fluid and position carefully to minimize possibility of damage during assembly Fasteners Torque all fasteners which are specified to insure proper reliability and prevent damage due to over tightening PUMP Shaft Seal Replacement NOTE Do not disassemble pump assembly 21 Hemove motor shown in Figures 3 4 and 3 5 page 24 Using an appropriate tool pry out the original shaft seal being c
33. ssible by tapping the down arrow in short intervals Holding down the down arrow will activate a float light located in the upper right corner of the control switch This light indicates the snow plow is now in the Lower Float position In this position the snow plow will be able to follow the contour of the road and the snow plow can also be angled to the left or right Touching the up arrow automatically cancels the Lower Float position While angling left or right or raising the snow plow if the button is pressed for more than four seconds the operation will be cancelled This feature eliminates unnecessary amp draw from the vehicle charging system Hands Free Plowing or ALM ARM Meyer re branded the ALM ARM feature on its 22690X controllers to be Hands Free Plowing When activated the Hands Free Plowing HFP mode uses the vehicle s shift lever to control the up down movement of the moldboard Pressing the HFP button on the controller will toggle you through On Off Back drag Mode default mode when active and Forward Plowing Mode Back dragging Mode or ALM When the controller is on and you are in the conventional plow control mode pressing the HFP button will activate Hands Free Plowing HFP The default mode for HFP is the Back drag Mode In the Back drag Mode the moldboard will automatically lower when you put the vehicle in reverse Put the vehicle in drive to automatically raise the moldboard Forward Plowing Mode or ARM
34. uction or design details specifications and prices without notice or without incurring any obligation SECTION 0 GENERAL INFORMATION AND MAINTENANCE CONTENTS GENERAL 2 MODEL IDENTIFICATION eren mme 2 e MODEL IDENTIFICATION AND SERIAL NUMBER LOCATION 1 2 gt MOTOR pas Pria 2 MAINTENANCE C 2 GENERAL MAINTENANCE seen 2 2 e VEHICLE ELECTRICAL SYSTEM eese 2 CHECK REGULARLY 2 POST SEASON MAINTENANCE 2 Meyer HYDRAULIC FLUID 1 1 2 REPLACEMENT OF HYDRAULIC FLUID 3 un e 3 e PROTECTION AGAINST RUST AND CORROSION ccccecececceveccuceuaccucavaueusavauuusuvauaueuvausnenvas 3 GENERAL INFORMATION Model Identification The E 58H unit is an electrically powered hydraulic mechanism specifically designed for use with the Meyer E Z Mount Plus Drive Pro and E Z Mount Classic Snow Plow systems Model Identification and Serial Number Location Inclusion of the model number and serial number is extremely important when writing up warranty claim forms and product report forms for proper evaluation and follow up The basic model number is located on the name plate plastic cover The serial number is located on the
35. ulic fittings at cylinders until they leak Power angle plow repeatedly from one side to the other until fluid flows steadily from the leaking fittings while maintaining a constant check on the reservoir fluid level Raise and lower the plow several times and with lift rod fully retracted give a final check to the fluid level and replace filler plug Filters Clean the two filters located in base of unit and power angling block with mineral spirits or equivalent and blow out with compressed air See Figure O 1 for filter locations Protection Against Rust and Corrosion When the E 58H unit is not used for extended periods protect the chromed lift rod Ram by fully extending it and coating it with chassis lubricant Full extension of the lift rod Ram fills the cylinder with hydraulic fluid Coat the exposed portions of the Power Angling cylinder rods Rams with chassis lubricant to protect them against rust and corrosion SECTION 1 GENERAL DESCRIPTION AND THEORY OF OPERATION CONTENTS DESCRIPTION eee eee 5 THEORY OF XOBPERATION 5 5 gt FLOW ducis duri stes ease 6 9 ELECTRO WIETS UNIT COMPONENTS ru 9 NOTOR 9 9 dii TE
36. uses one check valve located between the Solenoid Valve and the lift cylinder It prevents the hydraulic fluid in the lift cylinder from leaking back through the B Solenoid Valve which could cause the plow to drift down DOUBLE ACTING PILOT CHECK VALVE The pilot check valve is more sophisticated in that it incorporates a piston in addition to the ball seat and spring It is located next to the C valve the E 58H It has two functions The first is to prevent the hydraulic fluid in either power angling cylinder from leaking back to the reservoir The second is to allow the hydraulic fluid from the retracting power angling cylinder during the angling cycle to return to the reservoir This is accomplished by the pressurized hydraulic fluid moving the piston which forces the check ball off its seat ELECTRO LIFT amp UNIT COMPONENTS CONT CROSSOVER RELIEF VALVE When plowing snow a snow plow can be exposed to damaging forces caused by impact with hidden obstructions ends of curbs etc With power angling these damaging forces can damage not only the snow plow but also the vehicle The crossover relief valve has the function of protecting the snow plow system against these damaging forces under normal snow plowing conditions The crossover relief valve cannot protect the system from damaging forces that are too great due to abusive snow plowing conditions Basically the crossover relief valve functions exactly like th
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