User`s Manual - Curlin, Inc.
Contents
1. 5 Adjust valve fully clockwise and reapply power atthe m fused disconnect after chock is in pocket co TO RESTART CHOCK AFTER MANUAL RELEASE 1 on power fused disconnect 2 Pull STOP button out 3 Press RELEASE pushbutton 4 The wheel restraint is now ready for use December 2012 6011500E Truck Leveler with Automatic Wheel Restraint 15 2012 4Front Engineered Solutions Inc TROUBLESHOOTING Before doing maintenance or service push STOP pushbutton in Remove power at the fused disconnect during all electrical or mechanical service Disconnect must be properly locked out during maintenance or service of equipment Failure to disconnect power may result in death or serious injury Before doing any maintenance or repair read and follow the safety practices listed on page 3 and the operations section of this manual Place barricades on the dock floor around the truck leveler and in the driveway in front of the equipment while installing maintaining or repairing the truck leveler NOTE This troubleshooting section assumes that the truck leveler has been installed properly and that all electrical and hydraulic connections have been made correctly If this is a new installation or electrical or hydraulic work has been done on the unit referto the appropriate schematics and or instructions to verify that the unit is installed correctly RAMP WILL NOT LIFT WHEN RAISE2. Fig 1 shone A AA fi n f B IB M Place barricades around pit on dock floor and drive while installing maintaining or repairing truck leveler Be certain bystanders the driveway stand clear when truck leveler is operated Weld both 3 8 sides of flat 1 Before installing truck leveler use the certified pit drawings 3 8 bars Uphill to check the entire pit for correct dimensions and conduit weldsonly locations 2 If your unit was shipped in one piece grease hinge rod 8 channel and feed through hinge tubes on deck and rear hinge by others angle Insert roll pins through end hinge tubes Detail A Section B B 3 Weld the four hinge angle support plates supplied to the 8 channel at front of pit See Fig 1 Fig 2 4 Weld access cover support angles in hose junction of pit f See Fig 2 B NOTE i The following instructions cover the standard power supply and controls supplied for the truck leveler with automatic wheel restraint If special controls features or interlocks E part of this installation refer to the manuals or prints related iB to those features for specific instructions 1 5 Positionthehydraulic powersupply inthe chosen l
3. 2012 4Front Engineered Solutions Inc IN STALLATION continued 12 Remove cylinder shipping bolts from both cylinder base brackets 13 Place a chain or other suitable lifting device through the lugs located at the four corners of the deck The lifting lugs have been provided for the purpose of lifting during installation The truck leveler should not be lifted in any other manner when placing into position See Fig 5 Make sure lifting devices are in good condition and have a lifting capacity of at least 15 000 Ib at the lifting angle they are being used at Stand clear of the truck leveler when it is being placed into position Never allow anyone to stand on or near the truck leveler when it is being lifted or placed into position The truck leveler can tip or swing into bystanders causing severe injury and or death 14 Lift the entire unit into the pit Square deck with pit sides shimming behind hinge angle where necessary Hinge angle should rest on top of support plates welded in step 2 Weld behind each stationary hinge segment to 8 channel See Fig 6 15 Manually extend each lifting cylinderuntil the base bracket contacts the pit floor Ensure lifting cylinder is plumb when truck leveler is at level grade Anchor cylinder base brackets in position with 5 8 x 4 1 2 wedge anchors 16 Attach chockandrelease hoses to corresponding marked hoses on deck at pit hose junction Attach 8 lift hose to fitting at base
4. December 2012 6011500E Truck Leveler with Automatic Wheel Restraint 35 2012 4Front Engineered Solutions Inc PARTS LIST HYDRAULIC POWER UNIT Fig 19 C gt MOTOR 7 1 2 HP 1800 RPM 230 460 V SIGHT GAUGE SWITCHING SOLENOID COIL FLOW CONTROL VALVE SOLENOID COIL PRESSURE RELIEF VALVE 36 6011500E Truck Leveler with Automatic Wheel Restraint December 2012 2012 4Front Engineered Solutions Inc Fig 20 Truck Leveler Raised Truck Raise T 4 gt u ngu PARTS LIST CONTROL PANEL Ax Rome puta s Won na BAA PAR Py A et ER Fly Ua WES gro ai BER Vet sorge any P tan ua ES Val ae CAL TI p La etai nii adhi daa Jioc tom s war ette hy oo y orat 056 ENTER VEHICLE ON GREEN LIGHT ONLY ALWAYS RESTRAIN VEHICLE BEFORE LOADING OR UNLOADING app YA ABA viet ede S ek Mie di stt PARE trt 1 SU Kr WES Qe AG rr D Ico AL CERRAR OI ES 2 SUBS A AVE Fro S t BRE wwely ely amp EAS NSN 5 4 he crt Aene ec Gy RESTRAINT d OVERRIDE B OF ex LIGH
5. service of equipment Failure to disconnect power may result in death or serious injury NOTICE Before putting the restraint into service there are preparations and functional checks that must be made They are 1 Bleeding air from the hydraulic cylinder and lines 2 Checking chock travel DANGER The following steps 2 4 will be taken with the power on and the control panel open Only qualified electrical personnel should access the control panel while under power 1 Openthe control panel and activate the system by turning on the power at the fused disconnect 2 Verify component hook up 2 1 Note the condition of the control panel s indicator lights The RED light will likely be flashing upon initial power up This indicates a pre operational condition If itis solid RED proceed to step 5 2 2 Pull the STOP button out then press and hold the RELEASE pushbutton The motor should run long enough to bring RELEASE pressure up which will reset the system and illuminate the panel s RED light solid If successful proceed to step 5 2 3 If the chock is stored and the motor continues to run press the STOP button to stop the motor and perform the following checks a Verify proper operation ofthe valves forthe RELEASE function While the motor is running check for magnetism at the solenoid coils SV1 should be energized SV2 must NOT be energized If solenoids are not properly energized refertothe troubleshooting sect
6. 370 1 2 rigid conduit 14 6 minimum above grade Side View December 2012 6011500E Truck Leveler with Automatic Wheel Restraint 23 2012 4Front Engineered Solutions Inc Before doing maintenance or service push STOP pushbutton in Remove power at the fused disconnect during all electrical or mechanical service Disconnect must be properly locked out during maintenance or service of equipment Failure to disconnect power may result in death or serious injury Before servicing the truck leveler read and follow the Safety Practices on page 3 and the operation section of this manual After checking lights be certain lights are returned to the proper display If no vehicle is at the dock or the vehicle is not chocked the RED inside light should be lit and GREEN outside light should be flashing If a vehicle is at the dock and wheels are chocked the GREEN inside light should be lit and the RED outside light should be flashing Place barricades on the dock floor around the truck leveler and in the driveway in front of the equipment while installing maintaining or repairing the truck leveler Be certain that the truck leveler is securely supported using two independant support devices before doing any maintenance or repair work under the truck leveler DAILY 1 Operate the wheel restraint to assure that it operates smoothly and that the chock moves free
7. NOTE RELEASE will not function unless the leveler is in its fully lowered position 1 Press RELEASE pushbutton 2 Inside light will switch to flashing RED 3 Outside light will flash RED 4 After Chock is stored inside lights will switch to steady RED Outside lights will switch to flashing GREEN 5 Vehicle may now pull out TO STOP CHOCK NOTE Chock travel may be stopped at any time during its travel 1 Press STOP button 2 Inside RED light will flash at a slow rate to indicate a stopped condition 3 Outside RED light will flash December 2012 6011500E Truck Leveler with Automatic Wheel Restraint 13 2012 4Front Engineered Solutions Inc OPERATING INSTRU CTIONS continued TO RESTART CHOCK 1 Pull STOP button out 2 Inside and outside lights will remain unchanged Inside light remains flashing RED Outside light remains flashing RED 3 Press either CHOCK or RELEASE pushbutton If the CHOCK pushbutton is pressed the chock will resume its previous sequence See previous section for details 4 f the RELEASE pushbutton is pressed the Chock will store itself in the same manner as it does when releasing a vehicle 5 After chock is stored inside lights will switch to steady RED Outside lights will switch to flashing GREEN JOG This feature will allow the restraint to be manually returned to the stored position using the RESTRAINT OVERRIDE Switch and RELEASE pushbutton in the event of c
8. PUSHBUTTON IS PRESSED 1 MOTOR RUNS 1 1 Too much weight on ramp 1 2 Ramp already at maximum height 1 3 Pressure relief valve set too low factory set at 2800 PSI 1 4 Leaking or broken hose connection 1 5 Failed pump or pump motor coupling 2 MOTOR DOES NOT RUN 2 1 Overload has been tripped 2 2 Other electrical problem consult appropriate schematic 16 6011500E Truck Leveler with Automatic Wheel Restraint 2012 4Front Engineered Solutions Inc December 2012 3 RAMP WILL NOT LOWER when LOWER pushbutton is pressed 3 1 3 2 3 3 3 4 3 5 4 1 4 2 Ramp is already in the fully lowered position Defective lowering solenoid valve or coil Replace Obstruction underneath ramp preventing downward travel Remove obstruction Velocity fuse s in lift cylinders tripped Reset velocity fuses by pressing RAISE pushbutton to lift ramp slightly Other electrical problem consult appropriate schematic RAMP RAISES UNEVENLY Lift cylinders not synchronized Follow synchronizing procedure described on page 9 Leak or break in 6 hose connecting the two lifting cylinders Repair or replace 5 CHOCK DOES NOT ENGAGE OR RELEASE 5 1 5 2 5 3 5 4 5 5 5 6 5 7 December 2012 Ramp is not fully lowered Lower ramp fully Limit switch is out of adjustment Remove cylinder enclosure cover exposing chock cylinder with limit switch See Fig 16 Lower truck leveler fully
9. and or death Your supervisor should teach you the safe and proper way to use the truck leveler Read and follow the complete OPERATION PROCEDURE on page 8 before use DONOTUSETHE TRUCKLEVELERIF ITIS NOT WORKING RIGHT Tell your supervisor it needs repair Keep hands and feet clear of the truck leveler at all times Stay clear of the truck leveler when it is moving Do not load or unload any vehicle unless you make certain the wheel restraint has securely chocked the vehicle s rear wheels and set the brakes If the wheel restraint does not chock the vehicle s tire for any reason BE CERTAIN TO MANUALLY CHOCK THE VEHICLE WHEELS BEFORE LOADING OR UNLOADING Before chocking wheels or engaging vehicle restraint dump air from air ride suspensions and set parking brakes Before restraining a vehicle check that proper clearance is available under the vehicle throughout the full range of chock motion Do notoperate the restraint with equipment material or people directly in the path of the restraint Keep hands and feet clear of the chock mechanisms and guide path at all times Stay clear of the restraint when it is moving SAFETY PRACTICES INSTALLATION MAINTENANCE AND SERVICE Before doing maintenance or service push STOP pushbutton in Remove power at the fused disconnect during all electrical or mechanical service Disconnect must be properly locked out during maintenance or service of equipment Failure to disconnect powe
10. and then raise approximately 1 Loosen nut on arm and adjust roller position such that limit switch will trip just prior to truck leveler being fully lowered Tighten nut on arm and lower truck leveler to check that switch trips upon fully lowering unit Several trials may be necessary to get the adjustment correct Replace cylinder enclosure cover Fig 10 TROUBLESHOOTING continued Roller should contact top of cy 6011500E Truck Leveler with Automatic Wheel Restraint linder gland 17 2012 4Front Engineered Solutions Inc TROUBLESHOOTING MECHANICAL TROUBLESHOOTING 1 Chock begins to move drops back into pocket 1 1 Check chock for obstructions preventing proper operation Clear any obstructions present 1 2 Press the RELEASE pushbutton to reset chock 1 3 Check the rollers under the chock to ensure they move freely Lubricate as required 1 4 Lubricate the ramp surface of the chock pocket with anti seize compound 1 5 Press the CHOCK pushbutton to chock vehicle 2 Motor continues to run after vehicle is chocked 2 1 The motor will automatically shut off and an alarm will sound 2 2 Select RESTRAINT OVERRIDE to silence the alarm 2 3 The hydraulic system is not making proper pressure check all hydraulic connections for leaks Check all electrical connections 2 4 Repairanyleaks Testoperation ofthe vehicle restraint 3 During release cycle
11. motor continues to run after chock is stored 3 1 The motor will automatically shut off and an alarm will sound 3 2 Check all electrical and hydraulic connections and components carefully NOTE For a table describing the status of the lights and alarms during the operation of the wheel restraint see page 26 18 6011500E Truck Leveler with Automatic Wheel Restraint 2012 4Front Engineered Solutions Inc December 2012 ELECTRICAL TROUBLESHOOTING ADANGER Before doing maintenance or service push STOP pushbutton in Remove power at the fused disconnect during all electrical or mechanical service Disconnect must be properly locked out during maintenance or service of equipment Failure to disconnect power may result in death or serious injury 1 None of the lights on the controller in the control panel are on 1 1 Check that the fused disconnect switch is on 1 2 Check alltransformers and fuses See wiring diagrams located inside control panel DIAGNOSTICS The PLC continuously monitors system operation and will indicate when it is malfunctioning If an error occurs that could be potentially dangerous the restraint will halt operation and the inside panel lamps will display an indication of the error If a restraint fault has occurred Inside RED lamp is on Inside AMBER lamp is flashing a trouble code The unit will attempt to return to the stored position when the RELEASE pushbutton is
12. pressed All other functionality is suppressed To identify the specific problem count the flashes of the AMBER lamp and compare the number to the table below The count sequence will be repeated until the cause of the restraint fault is corrected A two second pause between flash sequences is employed TROUBLESHOOTING continued TROUBLE CODE DEFINITIONS Trouble Trouble Code Definition 2 PS1 and PS2 on at the same time 5 Motor run timeout exceeded 6 Chock pressure sensed too early 2 An indicator light on an outside light or on the control panel does not work 2 1 Check for power across LED wires 2 2 If no power is present check all wires fuses and transformers leading to the lights 2 3 If power is present and light does not light replace the LED 3 The system s controls operate properly but the motor does not operate 3 1 Check the overload relay 3 2 The overload is factory preset to automatically reset after it cools in the event of an over current condition If the overload relay has tripped it will be indicated 3 3 Wait 1 2 minutes for the overload device to cool and normal operations will be restored December 2012 6011500E Truck Leveler with Automatic Wheel Restraint 18 2012 4Front Engineered Solutions Inc SPECIFICATIONS GENERAL PLATFORM SIZE TL AC 1018 120 wide x 216 long TL AC 1020 120 wide x 240 long LIFTING CAPACITY 60000 Ib VERTICAL TRAVEL 24 Sta
13. should stop after approximately 45 seconds December 2012 6011500E Truck Leveler with Automatic Wheel Restraint 11 2012 4Front Engineered Solutions Inc OPERATING INSTRUCTIONS A WARNING Before operating the vehicle restraining device read and follow the Safety Practices Warnings and Operation instructions contained in this manual Use by untrained people could result in death or serious injury Do not use the Restraint if it looks broken or does not seem to work right Tell your supervisor at once Keep hands and feet clear at all times Stay clear of the wheel restraint when it is moving Do not load or unload any vehicle unless you make certain the wheel restraint has securely hitched the vehicle s rear impact guard and set the brakes If the wheel restraint does not chock the vehicle s tire for any reason BE CERTAIN TO MANUALLY CHOCK THE VEHICLE WHEELS BEFORE LOADING OR UNLOADING Enter the vehicle only when the GREEN signal light on the control panel is on You must check the GREEN signal light each time that the vehicle is entered If the GREEN light goes off at any time during loading operations immediately cease loading operations and check the wheel restraint to insure that it is securely hitched If the power to the wheel restraint is interrupted immediately cease operations and check the unit consult the troubleshooting instructions to reset the lights when power resumes Vehicles leaving or mov
14. ITED WARRANTY IS 4FRONT S SOLE AND EXCLUSIVE WARRANTY WITH RESPECT TO THE TRUCK LEVELER AND IS IN LIEU OF ANY OTHER GUARANTEES OR WARRANTIES EXPRESS OR IMPLIED 4FRONT warrants that this TRUCK LEVELER will be free from flaws in material and workmanship under normal use for a period of one 1 year from the earlier of 1 60 days after the date of initial shipment by 4FRONT 2 the date of installation of the TRUCK LEVELER by the original purchaser provided that the owner maintains and operates the TRUCK LEVELER in accordance with this User s Manual In the event that this TRUCK LEVELER proves deficient in material or workmanship within the applicable Limited Warranty period owner shall so notify 4FRONT and 4 Front will at its option 1 Replace the TRUCK LEVELER or the deficient portion s thereof without charge to the owner or 2 Alter or repair the TRUCK LEVELER on site or elsewhere without charge to the owner This Limited Warranty does not cover any failure caused by improper installation abuse improper operation negligence or failure to maintain and adjust the TRUCK LEVELER properly Parts requiring replacement due to damage resulting from vehicle impact abuse or improper operation are not covered by this warranty 4FRONT DISCLAIMS ANY RESPONSIBILITY OR LIABILITY FOR ANY LOSS OR DAMAGE OF ANY KIND INCLUDING WITHOUT LIMITATION DIRECT INDIRECT CONSEQUENTIAL OR PUNITIVE DAMAGES OR LOST PROFITS OR LOST PRODUCTION arising out
15. QUIRED 1 Lubricate rollers under chock 2 Clean out chock pocket and pan 3 Lubricate the ramp surface of the chock pocket with anti seize compound Acceptable Fluids An all weather hydraulic fluid with a viscosity of 15 CSt at 40 C 100 F such as Shell Tellus T 15 Mobil Aero HFA 49011 Exxon Univis HV13 N15 J13 Texaco Aircraft Oil 1554 U S Oil ZFI 5606 Low Temp December 2012 Fig 12 PLANNED MAINTENANCE Legend Lubricate Light Oil SAE 30 Anti Seize Compound Lubricate Grease Molybdenum disulfide NLGI 2 Labels Inspect pins and pin locks weekly al Clean hydraulic cylinders ramp hinge assembly hydraulic hoses and truck leveler pit to remove debris weekly Inspect hydraulics see steps 1 3 under weekly on page 13 Hydraulic reservoir Replace oil annually Inspect level quarterly Grease fitting at bottom of cylinder x 2 ramp surfaces x 4 Ramp hinge December 2012 6011500E Truck Leveler with Automatic Wheel Restraint 25 2012 4Front Engineered Solutions Inc LIGHTS ALARMS STATUS TABLE Table 1 describes the state of the lights and alarms during the normal operating modes of the wheel restraint Restraint Position Inside Inside Inside Fault Red Amber Green Alarm Home Stored Moving no fault present Stopped Chocked Restraint Override Jog Mode manually initiated Table 2 describes
16. TCH 6008438 HOSE 6 X 212 18 MODEL 380557 HOSE 6 X 118 20 MODEL 6013952 HOSE 6 X 156 380556 HOSE 6 X 20 380555 HOSE 8 X 60 380554 December 2012 6011500E Truck Leveler with Automatic Wheel Restraint 33 2012 4Front Engineered Solutions Inc LIST M TRUCK LEVELER continued HOSE 8 X 134 18 MODEL IW HOSE 8 X 21 20 MODEL Lx wsemxm eVENDER ROD EXTENSION GBWOBELOND COVER PLATE Lock WELDMENT Teaver woseaccess cover vuNDERACGESS Yar 2488 4 a WARING a SLOTTED TRUSS HEAD WAGHNESGREW a E O4 RENE Eu O4 EU a c EX NE 8 O4 2 1 2 2 2 2 4 2 z z i 34 6011500E Truck Leveler with Automatic Wheel Restraint December 2012 2012 4Front Engineered Solutions Inc 2 4 2 4 4 1 1 1 1 4 1 1 1 LIST mm TRUCK LEVELER continued 1 BOLT 3 4 10 X 2 GR 5 131515 Eng AB WEDGE 5 8 X 4 1 2 131294 ADAPTER 6 JIC TO 8 O RING 6011273 CYLINDER 3 PISTON 1 1 2 ROD 18 MODEL ONLY 380409 3 6 ADAPTER 6 JIC TO 3 8 NPT 6011272 7 CYLINDER 3 PISTON 2 ROD 380242 8 ADAPTER 8 TO 8 O RING 6011305 Quantity 2 for 20 model
17. TRUCK LEVELER WITH AUTOMATIC WHEEL RESTRAINT This manual applies to truck leveler units manufactured beginning December 2012 with serial number 61065693 and higher LAWARNING User s M Do not install operate or service this product unless you S e r S a n u a have read and understand the Safety Practices Warnings Installation and Operating Instructions contained this sta atio n ratio ns d User s Manual Failure to do so could result in death or Maintenance and Parts serious injury Part No 6011500E TABLE OF CONTENTS Introduction Pte 2 WINING 22 2 Planned 24 cud m 3 Light Alarms Status 26 Installation nase 4 Hydraulic Manifold 27 Start Up and Test eene 10 Hydraulic 28 Operating 2 12 Luca cr 29 TIOUDISSNOOUMG 16 Limited Warran y 39 Specifications 4 20 Distributor Information 40 INTRODUCTION Welcome and thank you for choosing this truck leveler This User s Manual contains information that you need to safely install operate and maintain the truck level
18. TS ONLY in tote TESS LIV A viia Asin A P dc al oud vh o Po s WIFE Peso PESO AER dne 44 402 4 584 ade e AK CT eme ivi aos pr SK gt Bore MN v Ap OIX WS toh Weeds RELEASE TEN d L Partial FOR CHS Boe Desi WE dd b Ie et STOP ays 2 AVFI PRY Pushintostop gt Pulltorelease 2011 4Front Engineered Solutions Inc December 2012 6011500E Truck Leveler with Automatic Wheel Restraint 37 2012 4Front Engineered Solutions Inc PARTS LIST RED GREEN LIGHT Fig 21 a lt lt 6 516 CAUTION MOVE ON GREEN 24 IVOM 3 9 14 1 16 11 7 16 I lt __ 9 Quantity Part Description Part Number OUTSIDE SIGN NORMAL AND REVERSE LETTERING 709 832 LIGHT ASSY COMPLETE LEDS ALARM MOUNTING HARDWARE 6007798 RED LED LIGHT ASSY 6007800 Part of Item 2 and 8 GREEN LED LIGHT ASSY 6007801 38 6011500E Truck Leveler with Automatic Wheel Restraint December 2012 2012 4Front Engineered Solutions Inc LIMITED WARRANTY THIS LIM
19. acement parts or modifications that weaken the structural integrity of the product or in a way alter the product from its normal working condition at the time of purchase from 4Front Engineered Solutions could result in product malfunction breakdown premature wear death or serious injury Fig 15 December 2012 6011500E Truck Leveler with Automatic Wheel Restraint 29 2012 4Front Engineered Solutions Inc LIST TRUCK LEVELER continued Fig 16 Detail C Detail B December 2012 30 6011500E Truck Leveler with Automatic Wheel Restraint 2012 4Front Engineered Solutions Inc LIST TRUCK LEVELER continued Fig 17 18 model 31 red Solutions Inc 2012 4Front Enginee 6011500E Truck Leveler with Automatic Wheel Restraint December 2012 LIST TRUCK LEVELER continued Fig 18 20 model Detail E a Detail December 2012 6011500E Truck Leveler with Automatic Wheel Restraint ed Solutions Inc 32 2012 4Front Engineer LIST TRUCK LEVELER continued METAL TACK AMTACK 3126 G0324 LABEL KELLEY HULK 921236 LABEL SERCO LOADWARRIOR 921243 PIN CYLINDER BASE 711216 BUSHING BRONZE 1 1 4 OD X 1 ID 711212 PIN CHOCK ROLLER 711211 CYLINDER ADJUSTMENT ANGLE WELDMENT 711061 HEX SOC CS CAP SCREW 1 2 13X2 711057 WIRE 7M 6008698 LABEL HAZARD 6008555 LIMIT SWI
20. anel 11 1 The sensor is a 4 wire device First terminate the positive lead brown wire to any C terminal on the input board 11 2 Terminate the negative lead blue wire to any OV terminal in the panel 11 3 Terminate the load lead black wire to the terminal specified in the job specific wiring schematic 11 4 Tape insulate the unused white wire 12 Run three phase power wires from the fused disconnect to the control panel 12 1 Connect power to control panel 12 2 Press RAISE 12 3 If truck leveler raises skip to step 14 8 6011500E Truck Leveler with Automatic Wheel Restraint 2012 4Front Engineered Solutions Inc December 2012 13 Reverse the motor rotation if necessary as follows 13 1 Disconnect power 13 2 Reverse the motor wiring by switching any two of the three motor wires connected to the overload relay T1 T2 and T3 13 3 Repeat 12 1 12 3 14 Anchor outside guardrails with 3 8 x 3 wedge anchors such that access is denied between the cylinder and dock See Fig 15 LIFT CYLINDER SYNCHRONIZATION The two main lifting cylinders are synchronized before they leave the factory It should only be necessary to re synchronize them if the 6 hose connecting them is disconnected allowing air to enter the line This hose should only be disconnected if it is required to run it through conduit as in a pit mounted truck leveler installation PROCEDURE 1 Remove any load from the tru
21. c Wheel Restraint 27 2012 4Front Engineered Solutions Inc HYDRAULIC SCHEMATIC Fig 14 PIDEN DECK CYLINDERS 04 RAM 92 ROD 93 PISTON m 4 js 91 1 2 ROD i IH H hdi 93 PISTON PE H IL CHOCK CYLINDERS La 54 CHOCK EXTEND CHOCK RELEASE VELOCITY FUSE VELOCITY FUSE zm zm PS3 77747 psa 602 1 EE LOWER DV 24VAC 24 N 1 37 187A S SV S ZI 7 i RELEASE CHOCK Pm 0 5000PSI NV _ o 83A E 10PSI RELEASE n 2 4 cm 7 5HP 1725RPM N6S 54 230 460 3PH 60HZ 213TC TEFC 22 11 FLA RV RAISE o GA N IS tt lt gt Ez 2800PSI 1 1212 co 3 T 52 GPM LP 08 f 400MESH 2 5PSI 16 GALLON 28 6011500E Truck Leveler with Automatic Wheel Restraint December 2012 2012 4Front Engineered Solutions Inc PARTS LIST TRUCK LEVELER A WARNING To ensure proper function durability and safety of the product only 4Front original replacement parts must be used Incorporation of repl
22. ck leveler 2 Remove the lift cylinder cover plates 3 Openthe needle valve on the larger cylinder 3 diameter rod by first loosening the Allen key set screw and then turning the knurled knob counter clockwise two turns 4 Depress the RAISE pushbutton to raise the truck leveler to its highest position 5 Purgeanyairfromthe smaller slave cylinder 4 diameter rod by slowly loosening the bleeder screw at the top of the cylinder housing until only oil escapes Tighten the bleeder screw 6 Raise the truck leveler to its highest position Close the needle valve by turning clockwise until tight and then tighten Allen key set screw 7 Lower deck fully 8 Replace the lift cylinder cover plates 9 The truck leveler with wheel restraint is now ready for start up and test Close and secure the control panel IN STALLATION continued December 2012 6011500E Truck Leveler with Automatic Wheel Restraint 9 2012 4Front Engineered Solutions Inc RESTRAINT START UP AND TEST A DANGER Do not service this product unless you have read and followed the Safety Practices Warnings and Operation instructions contained in this manual Failure to follow these safety practices could result in death or serious injury Before doing maintenance or service push STOP pushbutton in Remove power at the fused disconnect during all electrical or mechanical service Disconnect must be properly locked out during maintenance or
23. ders and feed through conduit running laterally across pit NOTICE Whenever running any hoses through conduit the end of the hose must be capped in order to prevent dirt and other debris from entering the hydraulic system 9 Mark hoses and feed through conduit from power unit location to truck leveler pit 10 Position power unit and anchor to floor 11 Attach hoses to power unit See Fig 4 IN STALLATION continued Fig 3 Allow clearance for seal and shelter Suggested alarm assembly location RED GREEN light assembly Siy Vehicle driver caution sign Approx 90 Fig 4 Chock M 0 9 EN Release Truck leveler lift December 2012 6011500E Truck Leveler with Automatic Wheel Restraint 5
24. er It also contains a complete parts list and information about ordering replacement parts Please keep and read this User s Manual before using your new light system SAFETY SIGNAL WORDS You may find safety signal words such as DANGER WARNING CAUTION or NOTICE throughout this Owner s Manual Their use is explained below This is the safety alert symbol It is used to alert you to potential personal injury hazards Obey all safety messages that follow this symbol to avoid possible death or injury ADANGER Indicates an imminently hazardous situation which if not avoided will result in death or serious injury Indicates a potentially hazardous situation which if not avoided could result in death or serious injury 2 6011500E Truck Leveler with Automatic Wheel Restraint 2012 4Front Engineered Solutions Inc Indicates a potentially hazardous situation which if not avoided may result in minor or moderate injury NOTICE Notice is used to address practices not related to personal injury December 2012 Read these safety practices before installing operating or servicing the wheel restraint Failure to follow these safety practices could result in death or serious injury If you do not understand the instructions ask your supervisor to explain them to you or call your local distributor OPERATION Use restricted to trained operators Use by untrained people can cause property damage bodily injury
25. ertain restraint failures To initiate the Jog Mode rotate and hold the RESTRAINT OVERRIDE switch and press the RELEASE pushbutton to retract the wheel chock See the Panel Communications table for details regarding panel lamp status TO MANUALLY RELEASE CHOCK NOTE In the event of a power failure the chock may be manually released to allow a vehicle to leave the dock 1 PushSTOP button Remove poweratfused disconnect 14 6011500E Truck Leveler with Automatic Wheel Restraint 2012 4Front Engineered Solutions Inc December 2012 OPERATING INSTRUCTIONS continued 2 Identify the manual release valve located on the top of Fig 9 the valve block of the power unit See Fig 9 3 The manual release valve is activated by adjusting the valve fully counter clockwise Stay clear of the chock while it is being returned to the T stored position Failure to do so may result in death or serious injury 4 Slidethe chock back along the track until it is in the stored T E position by slowly pulling the vehicle forward
26. ing when loading and unloading are in process could result in death or serious injury Failure to follow these safety practices may result in death or serious injury Vehicles should always enter and leave when the truck leveler is in the fully lowered position only NOTE The following failure conditions will immediately halt motor operation A restraint fault will be issued PS1 and PS2 on at the same time Vehicle not found Maximum motor run time 45 sec Early chock 2 5 sec If vehicle restraint malfunctions SOLID RED and FLASHING AMBER lights indicate an error condition exists An audible alarm will sound when the maximum motor run time is 12 2012 4Front Engineered Solutions Inc 6011500E Truck Leveler with Automatic Wheel Restraint exceeded Press RELEASE pushbutton to store restraint then CHOCK pushbutton if required If restraint continues to malfunction manually chock wheels and switch to RESTRAINT OVERRIDE A qualified technician must service the restraint For a description of the status of lights and alarms during different operating conditions see page 26 NOTICE The wheel restraint requires that vehicles have adequate under carriage clearance throughout the path of the chock Be sure 14 of clearance is present along the entire path the chock will travel Failure to do so may result in damage to the vehicle its attachments or the chock NOTE At all times that the choc
27. ion of this manual to determine the cause of the malfunction b If SV1 is properly energized while SV2 is NOT energized and the chock moves toward the chocked position swap hydraulic hoses at chock and release ports and repeat step 2 2 Allow enough time while holding the RELEASE pushbutton for the chock to return to its stored position See Fig 4 c Ifthe chock is seated in the stored position and does not move monitor for a RELEASE pressure indication atthe PLC input 3 If pressure is not indicated refer to the electrical troubleshooting section of this manual to determine the cause ofthe pressure switch s failure to indicate pressure This mode provides a means to assign a unique time stamp to each restraint assembly The Calibration routine will send the chock to the far end of its travel to determine the time required to travel the whole of the unit s length This value is then adjusted and used to maximize cylinder stroke while preventing potential false hitches Accurate calibration requires there be no truck present at the dock location being calibrated and the chock travel area should be clear of obstruction and or debris In order to obtain an accurate calibration the chock must be monitored during travel for binding or stalling The most effective means to affect this is to view the system pressure gauge located on the power unit housing Another method is to listen to the pitch of the motor while the chock is in motion Ab
28. k is in motion the motion alarm will sound TO CHOCK VEHICLE 1 Check for clearance under the vehicle throughout the entire chock path 2 Press CHOCK pushbutton NOTE Chock will not activate unless truck leveler is in fully lowered position 3 Inside light will switch from steady RED to flashing RED 4 Outside lights will switch to flashing RED 5 Whenvehicleis properly chocked the RED flashing inside light will switch to a GREEN steady light Outside light will remain flashing RED If vehicle cannot be chocked inside RED and AMBER lights will flash and the fault alarm will sound Ifthis occurs 5 1 Make certain vehicle brakes are set 5 2 Manually chock vehicle tires 5 3 Select RESTRAINT OVERRIDE 5 4 Inside lights will switch to steady AMBER and GREEN and the fault alarm will silence 5 5 Outside lights will remain flashing RED December 2012 OPERATING INSTRU CTIONS continued OPERATING INSTRUCTIONS FOR STANDARD CONTROL PANELS TO RAISE VEHICLE 1 Before raising vehicle it MUST be properly restrained with a suitable vehicle restraint system 2 Oncevehicleissafely chocked it may be raised by pressing and holding the RAISE pushbutton until the vehicle bed is at the desired height 3 Vehicle may now be loaded or unloaded TO LOWER VEHICLE 1 Store dock leveler 2 Press the LOWER pushbutton until the Truck Leveler is fully lowered 3 RELEASE vehicle restraint TO RELEASE VEHICLE
29. ly along the entire length of the track 2 Check all lights and alarms to ensure they are in proper working order 3 Inspectdockbumpers Missing bumpers must be replaced WEEKLY 1 Check for leaks on the hydraulic power unit 2 Check for damaged hydraulic fittings 3 Check that pins and pin locks are in place 4 Clean hydraulic cylinders ramp hinge assembly hydraulic hoses and truck leveler pit to remove debris MONTHLY 1 Checkfor damaged hinge tubes on ramp hinge assembly 24 2012 4Front Engineered Solutions Inc 6011500E Truck Leveler with Automatic Wheel Restraint 2 Check for cuts in hoses and loose or leaking fittings 3 Adjust hydraulics to maintain level deck if required 4 Lubricate ramp hinge assembly 1 Checkfluid level onthe reservoir If required add hydraulic oil 2 Check the rollers under the chock to ensure they move freely 3 Checkalloperating warning and caution labels and signs to be sure they can be read Replace them if required 4 Check the chock pocket and pan for debris 5 Check for loose frayed and damaged wires or hydraulic leaks QUARTERLY 1 Grease fitting on spherical bearing at bottom of lift cylinders 2 Visually inspect labels and replace if worn or missing 3 Checklevel and condition of hydraulic fluid ANNUALLY 1 Drain flush and change oil Use only oils specified 2 Remove and clean hydraulic oil pump strainer and reservoir AS RE
30. mately 45 seconds and should issue a Truck Not Found alert indicated by the RED and AMBER lights flashing together with an audible alarm pulse sound If a fault is issued indicated by a solid RED light accompanied by the AMBER light flashing a count the chock may be traveling too slowly Refer to the troubleshooting section if this occurs If the motor stops and the inside GREEN light is illuminated solid the Full Stroke proximity switch is misadjusted or malfunctioning Refer to the troubleshooting section for adjustment procedures if this occurs 4 3 With the chocks in the chocked position chock s full travel ensure the STOP button is out and press the RELEASE pushbutton Both chocks should move towardthe stored position and store Thetime required to store the chocks should not be greater than 45 seconds Once both are stored the motor will stop the inside RED light will illuminate solid and the outside GREEN light will flash Refer to the troubleshooting section if errors occur 6 3 6 4 6 5 When the Chock stops after approximately 45 seconds the fault alarm should sound The RED and AMBER lights will flash to indicate a Truck Not Found condition The outside RED light should remain flashing Note PLC input 1 is OFF Select RESTRAINT override The fault alarm should silence and the inside lights should change to steady Amberand Green The outside lights should remain flashing Red Check the Release func
31. ndard CHOCK ENGAGEMENT DISTANCE TL AC 1018 144 and 91 TL AC 1020 91 PLATFORM WEIGHT 24 Travel TL AC 1018 surface mount 10 900 Lbs TL AC 1018 pit mount 10 000 Ibs TL AC 1020 surface mount 11 350 Lbs TL AC 1020 pit mount 10 450 Ibs POWER UNIT PUMP 5 4 1800 RPM gear pump 7 5 HP 3 PH 1725 RPM TEFC continuous duty Approx full load amperage 208V 3PH 21A 230V 3PH 19A 460V 3PH 9 5A 575V 3PH 7 9A PRESSURE RELIEF SETTING 2800 PSI PRESSURE SWITCH SETTINGS Chock 1400 PSI Release 1300 PSI FLOW CONTROL Fixed 7 GPM RESERVOIR CAPACITY 16 gallon 20 6011500E Truck Leveler with Automatic Wheel Restraint December 2012 2012 4Front Engineered Solutions Inc SPECIFICATIONS continued Acceptable Fluids An all weather hydraulic fluid with a viscosity of 15 CSt at 40 C 100 F such as Shell Tellus T 15 Mobil Aero HFA 49011 Exxon Univis HV13 N15 J13 Texaco Aircraft Oil 1554 U S Oil Co Inc ZFI 5606 Low Temp CONTROL PANEL WIRING SCHEMATIC Located inside control panel MINIMUM RUNTIME SETTING 3 seconds MAXIMUM RUNTIME SETTING TL AC 5 4 GPM pump 45 seconds SECONDARY CONTROL VOLTAGE 24 VAC CYLINDERS Lift fully synchronized LIFT 24 Travel standard 1 5 Diameter piston 3 diameter rod 31 3 4 collapsed length 21 5 8 stroke 1 4 Diameter ram 31 3 4 collapsed length 21 5 8 stroke CHOCK TL AC 1018 1 3 diameter pist
32. ocation Be sure to orient the unit so that the side with the level sight glass is clearly visible and the filler cap on top is easily accessible ES Y Weld access N cover support angle to pit curb so that top of cover is flush with top of pit Section A 4 6011500E Truck Leveler with Automatic Wheel Restraint December 2012 2012 4Front Engineered Solutions Inc 6 Mount the outside communication lights alarm and sign so that they are visible to the vehicle driver Refer to the installation drawing for recommended dimensions Make sure the Red light is on top and the Green light is on the bottom when the light assembly is mounted See Fig 3 NOTE The chock motion alarm assembly must be mounted in the area of the chock The chock motion alarm assembly must be mounted in the area of the chock Failure to mount the alarm in close association with other dock and restraint components may reduce its effectiveness which could result in death or serious injury The motion alarm assembly is designed and controlled to sound whenever the chocks are in motion Each alarm is strictly associated with a single unit its mounting position must be such to maintain that association at installation 7 Mountthe vehicle driver caution sign immediately below the light and alarm assemblies This sign must also be clearly visible in the driver s side mirror See Fig 3 8 Disconnect the 6 hose linking the two lift cylin
33. of large lift cylinder See Fig 7 17 Locate the limit switch in the cylinder housing Run limit switch wires down the cylinder housing and attach to hydraulic hose Feed hose and wires through conduit pit mounted units to the other side of the truck leveler Attach 6 hose to lift cylinders See Fig 7 NM Weld base plate to rear channel behind every base plate hinge tube using 1 4 welds Fig 7 3 rod 4 rod lift cylinder lift cylinder Needle valve 6 hydraulic hose inr from top of 3 lift 8 hydraulic cylinder to bottom hose to truck of 4 lift cylinder leveler lift port i Fig 8 Mount control box on left ide of door opening 18 Attach control panel to wall adjacent the dock opening on P fing hard bv oth the left side facing out from inside the dock at approximately 5 from the ground to center of control panel See Fig 8 Eye level approx 60 6 6011500E Truck Leveler with Automatic Wheel Restraint December 2012 2012 4Front Engineered Solutions Inc IN STALLATION continued ELECTRICAL INSTALLATION Before installation read and follow the Safety Practices on page 3 Failure
34. of or related to the use installation or maintenance of the TRUCK LEVELER including premature product wear product failure property damage or bodily injury resulting from use of unauthorized replacement parts or modification of the TRUCK LEVELER 4FRONT s sole obligation with regard to a TRUCK LEVELER that is claimed to be deficient in material or workmanship shall be as set forth in this Limited Warranty This Limited Warranty will be null and void if the original purchaser does not notify 4FRONT s warranty department within ninety 90 days after the product deficiency is discovered THERE ARE NO WARRANTIES EXPRESS OR IMPLIED WHICH EXTEND BEYOND THE DESCRIPTION ON THE FACE HEREOF INCLUDING BUT NOT LIMITED TO AWARRANTY OF MERCHANTABILITY OR OF FITNESS FOR A PARTICULAR PURPOSE ALL OF WHICH 4FRONT HEREBY DISCLAIMS December 2012 6011500E Truck Leveler with Automatic Wheel Restraint 39 2012 4Front Engineered Solutions Inc Please direct questions about your Truck Leveler to your local distributor Corporate Head Office Your local distributor is 1612 Hutton Dr Suite 140 Carrollton TX 75006 Tel 972 466 0707 Fax 972 323 2661 2012 4Front Engineered Solutions Inc Part No 6011500E
35. ol panel 22 2012 4Front Engineered Solutions Inc 6011500E Truck Leveler with Automatic Wheel Restraint TRAILER PRESENT SENSOR OPTIONAL The trailer present sensor senses a vehicle at the dock and transmits a signal to the control panel This turns on the panel face AMBER light Mount the sensor See Fig 11 Ensure the sensor s logic switch is set to L O Light Operate The switch is located on the top of the sensor under a plastic cover Wire the switch Wire the sensor into the panel per the per the job specific schematic located in the panel Test for proper operation as per below OPERATIONS No Trailer Present Inside lights display Solid RED outside display GREEN Trailer Arrives Inside lights switch to Solid AMBER and RED outside lights continue to display GREEN Operator engages vehicle restraint Inside lights switch to Solid GREEN outside lights switch to display RED Operator releases vehicle restraint Inside lights switch to Solid AMBER and RED outside lights continue to display GREEN Trailer Departs Inside lights display Solid RED outside display GREEN December 2012 OPTIONS continued Fig 11 Building wall ITE Top View lt Note Rotate head 5 degrees from center 3 4477 Conduit to control Center line of door opening Front View EE Building wall lt 34 48 ref gt 315
36. ol panel for the voltage supplied The control panel is factory wired for the voltage specified on the order The label inside the control panel will show the pre wired voltage requirements December 2012 6011500E Truck Leveler with Automatic Wheel Restraint 7 2012 4Front Engineered Solutions Inc IN STALLATION continued NOTE A fused disconnect is required for each vehicle restraint as a means of disconnecting and limiting incoming power to the control panel This disconnect is supplied by others unless specifically ordered from 4Front Engineered Solutions Inc For correct disconnect fuse size and fuse type refer to the charts and wiring diagram located inside control panel for the proper voltage 6 Check the drive motor for voltage requirements it may accept dual voltage The drive motor s voltage s are stamped into the nameplate on the motor 7 Verify that both steps 6 and 11 match the voltage specified onthe order If they do not contact your local representative for assistance 8 Check that the fused disconnect for this installation is a lockable type and meets all applicable electrical and safety codes 9 Mount the fused disconnect near the control panel and wire three phase power to it from an available power source 10 Check voltage at the disconnect It must match voltages checked in steps 6 and 11 11 For vehicle presence sensor optional installed termination see schematic included in p
37. on 2 diameter rod 91 stroke 1 3 diameter piston 1 1 2 diameter rod 67 1 2 stroke TL AC 1020 2 3 diameter piston 2 diameter rod 91 stroke December 2012 6011500E Truck Leveler with Automatic Wheel Restraint 21 2012 4Front Engineered Solutions Inc OPTIONS Before doing any electrical work make certain the power is disconnected and properly tagged or locked off electrical work must be done by a qualified technician and must meet all applicable codes If it is necessary to make trouble shooting checks inside the control panel with the power on USE EXTREME CAUTION Do not place fingers or uninsulated tools inside the control panel Touching wires or other parts inside the control panel may cause electrical shock death or serious injury Do not service this product unless you have read and followed the Safety Practices Warnings and Operation instructions contained in this manual Failure to follow these safety practices could result in death or serious injury WIRING OF CONTROL AND PUMP OPTIONS AUXILIARY OUTPUT The wheel restraint control is provided with a normally open contact point which closes when the trailer has been chocked This contact may be used for auxiliary equipment or communication Terminals R13 and R14 are the access points for this feature If power is lost while unit is chocked the connection between R13 and R14 will be lost NOTE See wiring diagrams located inside contr
38. r may result in death or serious injury Place barricades around pit on dock floor and drive while installing maintaining or repairing truck leveler Do not stand in the driveway between the dock and a backing vehicle Do not use the truck leveler as a step Keep hands and feet clear of guide tracks and moving parts at all times All electrical troubleshooting and repair must be done by a qualified technician and meet all applicable codes Disconnect the power and properly tag or lock off before doing any electrical work If it is necessary to make troubleshooting checks inside the control panel with the power on USE EXTREME CAUTION Do not place fingers or uninsulated tools inside the control panel Touching wires or other parts inside the control panel could result in electrical shock death or serious injury If the wheel restraint does not operate properly using the procedures in this manual BE CERTAIN TO MANUALLY CHOCK THE VEHICLE WHEELS BEFORE LOADING OR UNLOADING Call your local distributor for service December 2012 6011500E Truck Leveler with Automatic Wheel Restraint 3 2012 4Front Engineered Solutions Inc INSTALLATION PIT MOUNTED INSTALLATION Before installation read and follow all safety practices shown on page 3 and the operation section of the manual Improper installation of the truck leveler could result in death or serious injury to dock workers or other users of the truck leveler
39. rupt changes in pressure or motor pitch imply restriction which can adversely affect the accuracy of the calibrated value 3 1 To activate Calibration mode insure the restraint is stored home position with a solid red lamp illuminated and the STOP button is pulled out Simultaneously press and hold the Engage and Release pushbuttons for 5 seconds Panel lamps will begin to flicker to indicate the activation of the Calibration mode If the procedure completes successfully the chock will automatically reverse and returnto the home position 3 2 Toimmediately halt Calibration mode press the STOP button The restraint can then be returned to the home position by normal means Ifthe calibration procedure is interrupted in this manner Calibration registers will be cleared No new values will be calculated 10 6011500E Truck Leveler with Automatic Wheel Restraint 2012 4Front Engineered Solutions Inc December 2012 RESTRAINT START UP AND TEST continued 4 Verify CHOCK and RELEASE functions 4 1 With the chock stored and the inside RED light illuminated solid ensure the STOP button is out and press the CHOCK pushbutton The chock should move toward the chocked position and the inside and outside RED lights will flash The motion alarm should sound while the motor is running If the chock fails to move press the STOP button and refer to the troubleshooting section 4 2 The chocks will travel full stroke in approxi
40. the effects on the loading lights when interconnected to a VSL Vertical Storing Leveler Amber Pilot VSL Error overload or simultaneous nc nc nc f float and stored condition Special case restraint fault NOTE Asserted if restraint stored An outside mounted motion alarm sounds whenever the 2 Sd motor is running to warn personnel of a hydraulic ram that f flashing as t fs flashing at slow rate no change Outside lamp flashes GREEN only when all conditions are safe for the vehicle to arrive or depart i e restraint and leveler stored with no alarms present It flashes RED by default 26 6011500E Truck Leveler with Automatic Wheel Restraint December 2012 2012 4Front Engineered Solutions Inc Fig 13 1 HYDRAULIC MANIFOLD BLOCK Chock PS1 chock extend Manual release PS2 chock release SV2 December 2012 Truck leveler lift Ez Release SV3 SV4 6011500E Truck Leveler with Automati
41. tion NOTE RELEASE will not function unless the truck leveler is in its fully lowered position 7 1 7 2 7 3 7 4 Press the RELEASE pushbutton on the face of the control panel The inside lights should change to RED flashing The RED GREEN outside lights should remain RED flashing The chocks should travel full stroke and both store themselves in its pocket This travel should take less than 45 seconds When the chocks stop in the pocket the motor will shut off and the inside and outside lights should change back to steady RED inside and flashing GREEN outside Note PLC input 1 is ON 8 Check the chock function 5 Check the outside lights With the chock retracted the GREEN light should be flashing and the RED light should 8 1 Press the CHOCK pushbutton on the face of not be illuminated the control panel and let the chocks travel for 20 seconds Pressthe STOP button Pull STOP button 6 Check the override function out and press the CHOCK pushbutton The chocks should run until the motor stops The inside light 6 1 Press the CHOCK pushbutton on the face of the should change to steady green and the outside light control panel The inside RED light will flash The should stay flashing red outside lights should switch immediately to flashing RED The chock will travel full stroke toward the 8 2 Press the RELEASE pushbutton to restore the dock Amotion alarm should be sounding to indicate chocks motion 6 2 The chock
42. to follow these safety practices could result in death or serious injury Before doing any electrical work make certain the power is disconnected and properly tagged or locked off electrical work must be done by a qualified technician and must meet all applicable codes If it is necessary to make troubleshooting checks inside the control panel with the power on USE EXTREME CAUTION Do not place fingers or uninsulated tools inside the control panel Touching wires or other parts inside the control panel may cause electrical shock death or serious injury High voltage power wires should be run in separate conduit from low voltage control circuit wiring 1 Wire the outside lights and alarm assembly to the control panel according to the wiring diagram located inside control panel 2 Run limit switch wires back to the control panel Wire the limit switch wires to the control panel according to the wiring diagram located inside control panel 3 Wire the hydraulic power supply s electrical box to the control panel according to the wiring diagram located inside control panel 4 The Leveler Stored terminals 24V and 10 and Door Closed terminals 24V and 9 signals are jumpered at the factory Their functions are to prevent the release of the restraint while the leveler is not stored or the door is not closed Install input switch devices as necessary to use these features Reference drawing 6001045 for details 5 Check the contr
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