User`s Manual - Curlin, Inc.
Contents
1. Center of dock a Placard 10 6006333H Loadhog Modular Dock Bridge October 2013 2013 4Front Engineered Solutions Inc Before operating the dock bridge read and follow the Safety Practices on page 3 Use of dock bridge restricted to trained operators Follow procedures on placard posted near dock bridge DO NOT USE DOCK BRIDGE IF IT LOOKS BROKEN OR DOES NOT SEEM TO WORK RIGHT Inform your supervisor immediately Before chocking wheels or engaging vehicle restraint dump air from air ride suspensions and set parking brake Always be certain that the truck is properly restrained before loading or unloading VISUALLY INSPECT vehicle restraint to make sure truck does not pull away unexpectedly Failure to do so could result in death or serious injury Ensure lip avoids trailer sides and cargo when deck is lowered If the lip does not lower to the trailer bed reposition trailer Visually check that the lip is supported by the truck bed or the dock bridge is fully lowered to the dock floor with the lip folded before driving or walking on the dock bridge Always return the dock bridge to its latched vertical stored position with the lip extended vertically before allowing the truck to leave the dock Never lift the dock bridge by any other means than the operating handle If it does not2. ADANGER Before doing any maintenance repair or adjustment on the dock bridge store it in a vertical position with lip vertical and the lock out pin engaged through the left base assembly Extended springs contain stored energy Never attempt to adjust or remove the springs when the dock bridge is lowered Never loosen or attempt to remove the nuts on the anchor bolts when the dock bridge is lowered The dock bridge must be stored in a vertical position with the lock out pin engaged through the left base assembly Before you disable the spring counter balance system insert the lock out pin through the left base assembly and secure the lock out pin with a padlock The dock bridge is counter balanced by two springs one on each side Spring tension is adjusted by turning the nut on the eyebolt at the top of each spring as shown in Fig 24 Ensure that nothing is in the way of the dock bridge as it lowers Step on the latch release pedal and gently push the dock bridge forward It should lower toward the working position and almost stop as it approaches the working position It is acceptable if the dock bridge stops above the working position as a slightly harder push will ensure that the dock bridge will fully lower However when the dock bridge is in the working range 6 above and 4 below dock floor it must always lower all the way to the dock floor If the dock bridge falls heavily to the working position increase the s
3. loadHog Powertully Simple This manual applies to the LHG Dock Bridges manufactured beginning May 2011 with the serial number 61007869 and higher Do not install operate or service this product unless you have read and understand the Safety Practices Warnings and Installation and Operating Instructions contained in this manual Failure to do so could result in death or serious injury Modular Dock Bridge 15 000 Ibs Gross Vehicle Weight 3 Ny LR gt RE lA A A SS isi O MM SS Sip j User s Manual Installation Operations Maintenance and Parts Part No 6006333H TABLE OF CONTENTS Table of Contents scccasscusansh cectieleviciexdicastdexercevanameannes 2 Planned Maintenance 17 ATM OCIUICUION nannies anra a 2 PACS ITVS siieu area seeds Seals aetna dace actus 19 Safety Signal WordS sictisisctecccrntetioniduaicenectaedaliacelse 2 Main Spring seeseeeesseseeereressrssrrrrrssssrrrrrrnssesreeens 19 Safety Practices cccccccccccceccceccececeeeeeeeteeeeeteeeess 3 Inspect Lip Latch 2 0 eeeeeeeeeeeeeseeeeeereeeneeeeen 20 Owner s Responsibilities ccccccececeeeseeeeeeeeeees 4 Inspect Security Latch ccc ceseeeeseeseeeteeereeeeen 21 COMPONGING csore nanon E 5 Troubleshooting Guide ccccccccssssceeceerecseeesees 22 Installation see cath as eeeeteaetetontcnatate renemecneenceaaters
4. n 7 iq oZ oon Operating handle ACPA KC Gas spring Deck assembly F ca Main spring _ Base plate Vai Storage latch Lifting lever Base ramp HITTAS i i i side housing Release pedal Lock out pin Security latch Bumper assembly Bumper bridge October 2013 6006333H Loadhog Modular Dock Bridge 2013 4Front Engineered Solutions Inc INSTALLATION LA WARNING Before installing the dock bridge read and follow the Safety Practices on page 3 Failure to follow the safety practices could result in death or serious injury DOCK CHECK 1 Determine the desired location of the dock bridge Door opening width recommendation is 8 for 6 wide model 9 for 6 6 wide model and 10 for 7 wide model DOCK BRIDGE CHECK 1 Visually check that the dock bridge is not damaged NOTE Dock bridges may ship in pairs examine both dock bridges carefully Fig 2 36 1 8 6 model 39 1 8 6 6 model 42 1 8 7 model 6 6006333H Loadhog Modular Dock Bridge 2013 4Front Engineered Solutions Inc INSTALLATION NOTE Front left and right directions are determined when standing on the dock and looking out of the doorway Same orientation as a truck backed into the dock 1 Mark centerline A on the dock floor perpendicular to the dock face at the center of the desired dock position Mark a l
5. Spring link Security latch spring Dec DWOI eck pivo pin shaft Fig 27 5 Collect the oil and dispose of as specified by the relevant waste disposal regulations 6 Dispose of the cylinder as metal waste 6006333H Loadhog Modular Dock Bridge 21 2013 4Front Engineered Solutions Inc TROUBLESHOOTING GUIDE Use the Troubleshooting Guide if ever the dock bridge fails to perform properly 4 DANGER LAWARNING Before doing any maintenance repair or adjustment on Before servicing the dock bridge read and follow the the dock bridge store the leveler in a vertical position Safety Practices on page 3 and the Operating Instruction with lip vertical and the lock out pin engaged through section in this manual the left base assembly Never lift the dock bridge by any other means than the operating handle If it does not lift use a suitable lifting device to raise and insert lock out pin before troubleshooting Problem Possible Cause Solution 1 Lip retracts before the dock bridge a Gas spring bracket loose a Inspect the upper gas spring is fully lowered mounts for loose or missing fasteners Replace as required b Gas spring failure s b Replace gas spring s 2 Lip does not stay extended when a Lip gas spring s is worn or a Replace gas spring s the dock bridge is in down position damaged 3 Lip raises too slowly or stops part a Lip hinge requires lubric
6. 2 Pull firmly on the operating handle to raise the dock bridge to the stored position The dock bridge will raise and the storage latch will automatically engage See Fig 12 NOTE C Operating handle contains ratchet feature While lifting deck push forward on the operating handle to obtain additional lifting advantage and then pull firmly 3 Push the operating handle forward and it will lock in the vertical stored position See Fig 13 Fig 12 Fig 13 October 2013 6006333H Loadhog Modular Dock Bridge 13 2013 4Front Engineered Solutions Inc OPERATIO NS continued Use these instructions when end loading a truck END LOADING 1 14 Pull the operating handle straight up to remove it from the lifting lever Then insert the operating handle into the socket at the left side of the lip See Fig 14 Lift the operating handle up until the lip moves forward and the lip latch disengages The lip will fall slowly to the retracted position See Fig 15 Remove the operating handle from the lip and replace it in the lifting lever Then step on the latch release pedal and gently push the dock bridge forward It should fall gently to the working position See Fig 16 If the dock bridge does not fall all the way walk on the deck to lower it See Fig 17 6006333H Loadhog Modular Dock Bridge 2013 4Front Engineered Solutions
7. 22 6006333H Loadhog Modular Dock Bridge October 2013 2013 4Front Engineered Solutions Inc Before servicing the dock bridge read and follow the Safety Practices on page 3 and the operations sections of this manual Failure to follow the safety practices could result in death or serious injury A DANGER Before doing any maintenance repair or adjustment on the dock bridge store it in a vertical position with lip vertical and the lock out pin engaged through the left base assembly Extended springs contain stored energy Never attempt to adjust or remove the springs when the dock bridge is lowered Never loosen or attempt to remove the nuts on the anchor bolts when the dock bridge is lowered The dock bridge must be stored in a vertical position with the lock out pin engaged through the left base assembly WEEKLY e Clean debris from area around the dock bridge QUARTERLY Inspect all warning labels and placards See page 18 Replace as necessary Ensure that nothing is in the way of the dock bridge if it lowers With the dock bridge in the vertical stored position gently push the dock bridge forward The dock bridge should not fall forward If it does then the storage latch is not engaging Inspect the latch to ensure that it rotates freely and remove any debris from the latch area If latch is damaged it must be replaced Inspect and lubricate all points as shown in Fig 23 on page
8. Stay clear of the dock bridge unless the lip is supported by the truck bed or the dock bridge is fully lowered Unsupported dock bridge can lower unexpectedly Store the dock bridge vertically with the storage latch engaged and the lip extended vertically after use SAFETY PRACTICES Ensure lip avoids contact with trailer sides and cargo If lip does not lower to trailer bed reposition trailer Move all equipment material or people off the dock bridge and store the dock bridge before allowing the truck to pull out Do not use a fork truck or other material handling equipment to lower the dock bridge Before chocking wheels or engaging the vehicle restraint dump all air from the air ride suspensions and set the parking brake Do not step on the bumper shelf until the trailer is securely against the dock bumpers and chocked or secured with a trailer restraint INSTALLATION MAINTENANCE AND SERVICE Place barricades on the dock floor around the dock bridge and in the driveway in front of the dock while installing maintaining or repairing the dock Do not operate the dock bridge when anyone is standing in front of the dock or the dock bridge Before doing any maintenance repair or adjustment on the dock bridge store it in a vertical position with lip vertical and the lock out pin engaged through the left base assembly Before you disable the spring counter balance system insert the lock out pin through the left base
9. injury 2 6006333H Loadhog Modular Dock Bridge October 2013 2013 4Front Engineered Solutions Inc Read these safety practices before installing operating or servicing the dock bridges Failure to follow the 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 local 4Front Engineered Solutions distributor OPERATION Use of dock bridge restricted to trained operators Do not use this unit to service trailers outside of its intended working range which is 6 above dock and 4 below dock Do not operate the dock bridge when anyone is in front of it Follow procedures on placard s posted near dock bridge Stay clear of the dock bridge when it is moving KEEP HANDS CLEAR OF HINGES AT ALL TIMES Do not use hands to position dock bridge or lip or to store dock bridge Use lifting handle furnished with dock bridge only to position deck and lip Do not use the dock bridge if it appears damaged or does not operate properly Inform your supervisor immediately Do not stand in the driveway or on the bumper shelf between the dock bridge and the backing truck Chock truck wheels or lock truck into place with truck restraining device and set brakes before loading or unloading Visually check that the lip is supported by the truck bed or the dock bridge is fully lowered with the lip folded before driving on the dock bridge
10. or 2 Alter or repair the DOCK BRIDGE on site or elsewhere without charge to the owner The limited warranty stated in the preceding paragraph IS EXCLUSIVE AND IT IS IN LIEU OF ANY OTHER GUARANTEES AND WARRANTIES EXPRESS OR IMPLIED The limited warranty does not cover any failure caused by improper installation abuse negligence or failure to maintain and adjust the DOCK BRIDGE properly Parts requiring replacement due to damage resulting from vehicle impact abuse or improper operation are not covered by this warranty 4Front Engineered Solutions Inc disclaims any responsibility or liability for any loss or damage including without limitation direct indirect or consequential damages or lost profits or production time that results from the use of unauthorized replacement parts or modification of the DOCK BRIDGE 4Front Engineered Solutions Inc sole obligation with regard to a DOCK BRIDGE that proves to be deficient in material or workmanship shall be as set forth in its standard warranty above i e 4Front Engineered Solutions Inc will at its option repair or replace the DOCK BRIDGE or portion thereof without charge to the purchaser This limited warranty does not cover any failure caused by improper installation abuse negligence or failure to properly maintain and adjust the DOCK BRIDGE This limited warranty will be void or of no effect if the original purchaser does not notify 4Front Engineered Solutions Inc s warranty depar
11. 18 Lubricate the lip hinge lugs with light oil or chain lube spray Do not over lubricate Use the operating handle to extend and retract the lip several times See page 14 Wipe off excess lubricant e Lubricate the ball joints on the gas springs with light oil Do not over lubricate Wipe any excess oil from gas springs PREVENTIVE MAINTENANCE e Ensure that nothing is in the way of the dock bridge as it lowers Step on the latch release pedal and gently push the dock bridge forward It should lower toward the working position and almost stop as it approaches the working position It is acceptable if the dock bridge stops above the working position as a slightly harder push will ensure that the dock bridge will fully lower However when the dock bridge is in the working range 6 above and 4 below dock floor it must always lower all the way to the dock floor If the dock bridge falls heavily to the working position increase the spring tension If the dock bridge does not always lower when in the working range decrease the spring tension See Adjustments on page 19 After adjusting the spring repeat the test With the dock bridge lowered and the lip extended lift up on the end of the lip The dock bridge should feel heavy and move downward when the lip is released between 0 and 20 above dock If the dock bridge raises at any position the security latch is not properly engaged See Adjustments on page 21 for corrective action
12. Inc Fig 14 Fig 15 Q Fig 16 October 2013 OPERATIONS continued Fig 17 END LOADING STORING THE DOCK BRIDGE Fig 18 1 To return the dock bridge to the stored vertical position raise the operating handle by gently stepping on the bar protruding from the side of the lifting handle gt housing See Fig 18 2 Pull firmly on the operating handle to raise the dock bridge to the stored position The dock bridge will raise and the storage latch will automatically engage See Fig 19 NOTE C Operating handle contains ratchet feature While lifting deck push forward on the operating handle to obtain additional lifting advantage and then pull firmly Fig 21 Q October 2013 6006333H Loadhog Modular Dock Bridge 15 2013 4Front Engineered Solutions Inc OPERATIO NS continued STORING THE LIP Fig 20 1 16 Pull the operating handle straight up to remove it from the lifting lever and insert it into the socket at the left side of the lip See Fig 20 Pull the operating handle back until the lip rotates 60 allowing the gas springs to lift the lip to its final vertical position See Fig 21 Remove the operating handle from the lip Replace the handle in the lifting lever See Fig 22 Fig 21 Fig
13. Inspect dock bumpers Four inches 4 of bumper protection is required Worn torn loose or missing bumpers must be replaced October 2013 6006333H Loadhog Modular Dock Bridge 17 2013 4Front Engineered Solutions Inc PLANNED MAINTENANCE continued Every 90 days quarterly inspect all safety labels and tags to ensure they are on the dock bridge and are easily legible If any are missing or require replacement please contact your distributor Fig 23 6002121 Legend Symbol Fa Lubricant Oil Light oil SAE 30 Lubricant Grease Lithium grease NLGI 2 Lubricant Chain Chain lubricant LPS 2 or equivalent Visually Inspect Oil leaks ball joints 6002120 ball joints 4 DANGER Use restricted to trained operators Read and follow the User s Manual and posted warning and operation placard before operating or maintaining the dock bridge ua DO NOT WALK IN FRONT OF DOCK BRIDGE until you Restore the dock bridge to its safe stored vertical position with the lip extended vertically Ensure that the dock bridge is secured by the storage latch e A BEFORE chocking wheels or engaging vehicle restraint dump air from air ride suspensions and set parking brakes BEFORE lowering the dock bridge ensure the lip avoids contact with the trailer sides and cargo If lip does not lower to
14. when it is being lifted or placed onto the dock floor Stand clear of the dock bridge when it is being placed onto the dock floor Failure to follow this warning can allow the dock bridge to fall tip or swing into people resulting in death or serious injury ee ee Steel Shipping NOTE banding skid Bolts Handle one dock assembly at a time 5 Install a load centering eye bolt through the lip plate of the dock bridge The dock bridge should not be lifted in any other manner 6 Place the dock bridge in the desired position at the dock with the center of the deck aligned with the center of the opening and the front edge of the base plates 18 9 16 back from curb angle See Fig 2 October 2013 6006333H Loadhog Modular Dock Bridge 7 2013 4Front Engineered Solutions Inc IN STALLATION y continued Do not remove the lock out pin from the base assembly until the dock bridge has been secured to the dock floor Failure to follow this warning can allow the dock bridge to fall resulting in death or serious injury 8 Using a 3 4 bit and the holes in the base plates as a guide drill four holes at least 5 1 2 deep into the dock floor Blow out or vacuum drilling dust from hole Secure the dock bridge to the floor with the four 3 4 x 5 1 2 anchors and hardware provided Torque the nuts to 110 ft lb See Fig 4 Improper installation of anchoring devices or installation into aged or unsoun
15. Bumper assembly LH 13 Frame paint assy bumper LH 13 bumper Frame paint assy bumper LH 26 bumper Frame paint assy bumper RH 26 bumper Includes items 43 44 45 and 46 Includes items 43 45 46 and 51 tincludes items 38 and 39 26 6006333H Loadhog Modular Dock Bridge October 2013 2013 4Front Engineered Solutions Inc LIMITED WARRANTY INFORMATION 4Front Engineered Solutions Inc warrants that this DOCK BRIDGE 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 Engineered Solutions Inc or 2 the date of installation of the DOCK BRIDGE by the original purchaser provided that the owner maintains and operates the DOCK BRIDGE in accordance with this User s Manual Main Spring Warranty All main springs are warranted to cover the cost of replacement parts and freight only for an extended period of four 4 years after the initial 1 yr warranty period Parts warranty All spare or replacement parts are warranted to cover the cost of replacement parts and freight only for ninety 90 days from the date of shipment In the event that this DOCK BRIDGE proves deficient in material or workmanship within the applicable limited warranty period 4Front Engineered Solutions Inc will at its option 1 Replace the DOCK BRIDGE or the deficient portion of either without charge to the owner
16. NG 4 DANGER Always secure the truck with a vehicle restraint orwheel Before doing any maintenance repair or adjustment chocks before operating the dock bridge Do not operate on the dock bridge store it in a vertical position with dock bridge with anyone standing on or in front of it lip vertical and the lock out pin engaged through the left base assembly Do not lift the dock bridge lip by hand Always keep hands and feet clear of all moving parts Always return the dock bridge to its latched vertical stored position with the lip extended vertically before allowing the truck to leave the dock LOWERING THE DOCK BRIDGE 1 Before operating the dock bridge secure the truck with a vehicle restraint or wheel chocks 2 To lower the dock bridge step on the latch release Fig 9 pedal and gently push the dock bridge forward See Fig 9 3 The dock bridge should lower gently to the working position with the lip supported by the freight carrier If it does not lower all the way walk on the deck to lower it See Fig 10 Fig 10 Q 12 6006333H Loadhog Modular Dock Bridge October 2013 2013 4Front Engineered Solutions Inc OPERATIONS continued STORING THE DOCK BRIDGE Fig 11 1 To return the dock bridge to the stored vertical position raise the operating handle by gently stepping on the bar protruding from the side of the operating handle gt housing See Fig 11
17. assembly and secure the lock out pin with a padlock Never adjust or attempt to remove the springs when the dock bridge is lowered Never loosen or attempt to remove the nuts on the anchor bolts when the dock bridge is lowered The dock bridge must be stored in a vertical position with the lock out pin engaged through the left base assembly Never lift the dock bridge by any other means than the operating handle If it does not lift use a suitable lifting device to raise and insert lock out pin before troubleshooting Failure to follow these instructions could result in death or serious injury to operators and or bystanders October 2013 6006333H Loadhog Modular Dock Bridge 3 2013 4Front Engineered Solutions Inc OWNER S RESPONSIBILITIES The owner s responsibilities include the following The owner should recognize the inherent danger of the interface between dock and transport vehicle The owner should therefore train and instruct operators in the safe use of dock bridges When a transport vehicle is positioned as closely as practical to a dock bridge there shall be at least 4 of overlap between the front edge of the lip and the edge of the floor or sill of the transport vehicle Nameplates cautions instructions and posted warnings shall not be obscured from the view of operating or maintenance personnel for whom such warnings are intended Manufacturer s recommended periodic maintenance and inspe
18. ation a Lubricate lip hinge way b Lip gas spring s is damaged or b Replace gas spring binding 4 Dock bridge falls too fast a Main springs require more tension a Adjust main spring tension See page 19 5 Dock bridge raises from truck bed a Main springs have too much a Adjust main spring tension tension See page 19 b Security latch is not engaging b Inspect hold down for free movement and ensure security latch spring is present Lubricate shaft and replace security latch and spring if required 6 Dock bridge cannot be raised from a Security latch does not disengage a Operating handle does not the truck bed engage security latch Inspect handle assembly and security latch assembly Replace any damaged parts b Main springs require more tension b Adjust main springs or replace or a spring or chain is broken broken spring or chain See page 19 22 6006333H Loadhog Modular Dock Bridge October 2013 2013 4Front Engineered Solutions Inc TROUBLESHOOTING GUIDE continued LA WARNING Before doing any maintenance repair or adjustment on Before servicing the dock bridge read and follow the the dock bridge store the leveler in a vertical position Safety Practices on page 3 and the Operating Instruction with lip vertical and the lock out pin engaged through section in this manual the left base assembly Never lift the dock bridge by any other means than the operating handle If it does not lift u
19. ction procedures should be kept Dock bridges that are structurally damaged or have experienced a sudden loss of support while under load such as when a transport vehicle is pulled out from under the dock bridge shall be removed from service inspected by the manufacturer s authorized representative and repaired as needed before being placed back in service The owner shall see that all nameplates caution and instruction markings or labels are in place and legible and that the appropriate operating and maintenance manuals are provided to users Modifications or alterations of the dock bridge shall be made only with written permission of the original manufacturer When industrial trucks are driven on and off transport vehicles during the loading and unloading operation the brakes on the transport vehicle shall be applied and wheel chocks or positive restraints that provide the equivalent of wheel chocks engaged The dock bridge should never be used outside its vertical working range or outside the manufacturer s labeled rated capacity It must also be compatible with the loading equipment and other conditions relating to the dock 4 6006333H Loadhog Modular Dock Bridge 2013 4Front Engineered Solutions Inc October 2013 COMPONENTS The main components of the dock bridge are shown below See the Parts List for specific part numbers Fig 1 Lip plate Lip plate hinge Adjusting nut AY a
20. d concrete could result in death or serious injury 9 Install a steel cap to plug the hole in each side frame See Fig 5 10 Remove the lock out pin from the left base assembly and store it in the socket on the deck 11 Inspect the dock face for installation of the bumpers Ensure that the dock face is clear 56 each side of the dock centerline and 14 below the dock floor ADANGER Do not stand in front of the dock bridge when removing the lock out pin Failure to follow the safety practices could result in death or serious injury 12 Place the operating handle in the socket on the left side of the dock bridge Step on the latch release pedal and gently push the dock bridge forward It should lower to the fully lowered position 13 Cycle the dock bridge going through the operational steps described on pages 11 through 16 Refer to the troubleshooting guide on pages 22 and 23 if any operational problems are encountered 8 6006333H Loadhog Modular Dock Bridge 2013 4Front Engineered Solutions Inc Fig 4 3 4 gt 4 Fig 5 release pedal October 2013 IN STALLATION y continued Extended springs contain stored energy Never attempt to adjust or remove the springs when the dock bridge is lowered Never loosen or attempt to remove the nuts on the anchor bolts when the dock bridge is lowered The dock bridge must be stored in a vertical position with the lock out pin engaged through the l
21. dhog com LoadHog Powerfully Simple 4Front Engineered Solutions 2013 4Front Engineered Solutions Inc Part No 6006333H
22. eft base assembly 14 Mark a line on the dock floor at each side of the dock bridge Raise the dock bridge to the stored vertical position and engage the lock out pin 15 Measure from the centerline A to each of the lines marked in step 14 Mark a new centerline if the dimensions are not equal Mark two vertical lines E on the dock floor 43 each side of the centerline 16 Locate bumpers as shown in Fig 6 6 and 6 6 models will position the top plate flush with the dock floor See Fig 6 7 models will position the top of the positioning tab flush with the dock floor See Fig 6 Apositioning tab is provided on the 7 assembly Note that there are right and left bumpers and the brackets on the side must be toward the center of the dock See Fig 6 Secure each bumper to the dock face with four 3 4 x 5 1 2 anchor bolts provided Torque to 110 ft lb 4 per bumper October 2013 6006333H Loadhog Modular Dock Bridge 9 2013 4Front Engineered Solutions Inc IN STALLATION y continued 17 Using the four 1 2 bolts and hardware supplied attach Fig 7 the shelf to the bumpers with the lip edge out See Fig 1 2 UNC x 1 1 2 bolt 4 7 18 Permanently mount the dock bridge warning and operating placard on the wall nearest to the dock bridge See Fig 8 ot 19 Perform the quarterly maintenance steps on page 17 in Q this manual 1
23. eneenihiantee 6 Parts LIS tsena een nEs 24 Operations narin inipit adient senaian iiad 11 Limited Warranty Information ceeeeeeeeeeees 27 Lowering Dock Bridge ccessseeeerseteeees 12 Corporate Contact c ciciesiicortcceteusetcvcstnictecereereerastes 28 Storing Dock Bridge 13 End Loading Storing the Dock Bridge 14 INTRODUCTION Welcome and thank you for buying your LoadHog dock bridge from 4Front Engineered Solutions Inc This manual contains information that you need to operate and maintain the dock bridge safely It also contains a complete parts list and information about reordering replacement parts Please read it before you use your new dock bridge SAFETY SIGNAL WORDS You may find safety signal words such as DANGER WARNING or CAUTION throughout this User 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 may result in minor or moderate injury NOTICE Notice is used to address practices not related to Indicates a potentially hazardous situation which if not avoided could result in death or serious personal injury
24. ine B perpendicular to the centerline 18 9 16 from the dock face See Fig 2 NOTE The handle side spring cover should have at least 4 from the door frame to the outside edge of the spring cover for proper handle clearance from the door frame or nearest obstruction See Fig 2 8 min to door frame October 2013 IN STALLATION y continued 2 Check that the floor is flat in the base mounting area 24 x 86 for width of the dock bridge Remove any bumps in the concrete If the floor is higher in the center it may interfere with proper operation Continue with the installation of the dock bridge but refer to step 11 when inspecting for proper operation Wear proper eye and hand protection when cutting steel banding 3 Carefully cut the steel banding and remove the bumpers bumper shelf operating handle and hardware tube from the dock bridge See Fig 3 Fig 3 4 Use a 15 16 socket wrench to remove the 5 8 nuts 4 each side from the bolts securing the dock bridge to the wood shipping skids and the two bolts from the lip plate brace Discard fasteners See Fig 3 Inadequate lifting equipment or practices can cause a lifted load to fall unexpectedly Make sure lifting chain or other lifting devices are in good condition and have a rated capacity of at least 3500 Ibs for the lifting angle used Never allow anyone to stand on or near dock bridge
25. lift use a suitable lifting device to raise and insert lock out pin before troubleshooting Failure to follow these instructions could result in death or serious injury to operators and or bystanders NOTE If the truck unexpectedly pulls away leaving the dock bridge unsupported the dock bridge will fall to full below dock level October 2013 OPERATIONS INTRODUCTION The LoadHog dock bridge is designed to span and compensate for space and height differences between a loading dock and freight carrier to allow safe efficient freight transfers The dock bridge is spring counter balanced to allow easy manual lowering and raising The dock bridge is stored vertically with the lip extended A mechanical latch holds the dock bridge in the stored position Stepping on the foot pedal releases the latch and allows the dock bridge to be pushed forward so it will lower to the working position The dock bridge is downwardly biased in the working position A security latch prevents the dock bridge from inadvertently raising above the working range After loading raising the operating handle releases the security latch and raises the dock bridge For end loads the lip can be manually lowered by moving the operating handle to the socket in the lip plate 6006333H Loadhog Modular Dock Bridge 11 2013 4Front Engineered Solutions Inc OPERATIONS continued Use these instructions for normal operations LAWARNI
26. pring tension If the dock bridge does not always lower when in the working range decrease the spring tension After adjusting the spring repeat the test to ensure proper operation To adjust the spring tension turn the adjusting nut on both springs one half turn Both springs should be adjusted equally October 2013 6006333H Loadhog Modular Dock Bridge ADJUSTMENTS Use these instructions to adjust the dock bridge Before servicing the dock bridge read and follow the Safety Practices on page 3 and the operations sections of this manual Failure to follow the safety practices could result in death or serious injury Before servicing the dock bridge always position traffic cones or a barricade behind the dock bridge to warn fork truck operators and pedestrians away from the dock bridge Always position traffic cones or a barricade in front of the dock bridge to warn against truck traffic Always notify a foreman or supervisor that you are working on the equipment ADJUST MAIN SPRINGS Adjusting nut i Mm Dampening sleeve DH T Eye bolt T ine Main spring yf YP 19 2013 4Front Engineered Solutions Inc ADJUSTME NTS continued LIP ASSIST GAS SPRING The LoadHog is fitted with two gas springs that support the lip during operation The lip must remain firmly extended when lowered in
27. se a suitable lifting device to raise and insert lock out pin before troubleshooting Problem Possible Cause Solution 7 Dock bridge does not fully raise a Debris caught between coils of the a Partially lower the dock bridge and main spring remove debris from spring coils 8 Dock bridge does not fully lower a Debris on dock floor in front of dock a Raise the dock bridge to the bridge latched vertical stored position and remove debris 9 Dock bridge bounces raises off truck a Lip not being held tight to deck a Inspect the lip and gas spring s bed during loading and unloading If the gas spring is damaged or lacking pressure the lip will not remain extended Replace the gas spring See page 20 b Main springs require less tension b Adjust loosen eyebolt s 1 2 1 turn Test performance Repeat 10 Foot pedal release too hard to a Deck weight is resting on latch arm a Pull back on deck while stepping depress when lowering deck on release pedal Then push forward October 2013 6006333H Loadhog Modular Dock Bridge 23 2013 4Front Engineered Solutions Inc DOCK BRIDGE PARTS LIST Use this Parts List to determine the correct replacement part s for your dock bridge To ensure proper function durability and safety of the product only 4Front original replacement parts must be used Incorporation of replacement parts or modifications that weaken the structural integrity of the product orina wa
28. t pin from the left base assembly until you are sure that the spring counterbalance system and the storage latch are in proper working condition Do not stand in front of the dock bridge while removing the lock out pin Reach from the side of the dock bridge Do not force the lock out pin out of the dock bridge base assembly Ifthe pin does not slide freely support the dock bridge securely using other means and determine the cause of interference 50021216 Once the lock out pin is removed lower dock bridge to horizontal Position then raise to latched storage position to test for proper operation before removing barricades Do not unbolt unit from floor with the ramp in the lowered position Never lift the dock bridge by any other means than the operating handle If it does not lift use a suitable lifting device to raise and insert lock out pin before troubleshooting Refer to User s Manual for proper maintenance and adjustment procedures Call 4Front Engineered Solutions Inc if you have any questions about the operation of this dock bridge 972 446 0707 or 800 525 2010 Failure to follow these instructions could result in death or serious injury 6002199 OPERATING INSTRUCTIONS LJ Warning and operation placard mounted on wall near dock bridge 18 6006333H Loadhog Modular Dock Bridge 2013 4Front Engineered Solutions Inc October 2013
29. tment within ninety 90 days after the product deficiency is discovered Parts requiring replacement due to damage resulting from vehicle impact abuse or improper operation are not covered by this warranty 4Front Engineered Solutions Inc disclaims any responsibility or liability for any loss or damage that results from the use of unauthorized replacement parts or modification of the DOCK BRIDGE THERE ARE NO WARRANTIES EXPRESS OR IMPLIED WHICH EXTEND BEYOND THE DESCRIPTION ON THE FACE HEREOF AND THERE IS NO WARRANTY OF MERCHANTABILITY OR OF FITNESS FOR A PARTICULAR PURPOSE 4Front Engineered Solutions Inc warranties extend only to the DOCK BRIDGE itself 4Front Engineered Solutions Inc DISCLAIMS all warranties express or implied responsibility or liability for loss or damage of any kind associated with the installation or maintenance of the DOCK BRIDGE including any liability for premature product wear product failure property damage or bodily injury arising from improper installation or maintenance of the DOCK BRIDGE October 2013 6006333H Loadhog Modular Dock Bridge 27 2013 4Front Engineered Solutions Inc Please direct questions about your dock bridge to your local distributor or to 4Front Engineered Solutions Inc Corporate Head Office Your local distributor is 1612 Hutton Dr Suite 140 Carrollton TX 75006 Tel 972 466 0707 Fax 972 323 2661 lVoadHog Powertully Simple www theloa
30. to the truck Inspect the gas spring for oil leakage or loss of pressure Under normal operation the gas spring assist the lip extension and will lift the lip from 60 to vertical position The lift should be a slow rate under control INSTALLATION Proper installation requires the gas spring to be installed with a pre load Install the gas spring cylinder side to the lower mounting hole of the gas spring mounting bracket and tighten The upper mounting bracket must be installed with the upper bolt first then with the use of a 1 2 sq drive ratchet or breaker bar rotate the bracket downward compressing the gas spring Insert the lower bracket bolt and tighten NOTE See proper disposal procedures on page 21 Fig 25 Ratchet Gas spring cylinder side 20 6006333H Loadhog Modular Dock Bridge 2013 4Front Engineered Solutions Inc October 2013 INSPECT SECURITY LATCH The security latch is mounted on the left end of the dock bridge pivot shaft The security latch is spring biased to rotate in a clockwise direction and should pivot freely Move the security latch forward by hand and ensure that it rotates backward against the stop on the base plate If the security latch does not rotate backward inspect to see if the spring is missing and replace the spring if required If the security latch does not rotate freely lubricate the shaft See Fig 26 The sec
31. trailer bed reposition trailer Do not stand in the driveway between the dock bridge and the backing truck Do not stand on the bumper shelf unless the trailer is securely against the dock bumpers and chocked or secured with a trailer restraint Stay clear of the dock bridge unless lip is supported by trailer bed or dock bridge is supported in a horizontal position by the dock with lip folded unsupported dock bridge can lower unexpectedly Never lift the dock bridge by any other means than the operating handle If it does not lift use a suitable lifting device to raise and insert lock out pin before troubleshooting Before allowing vehicles to leave the dock always Ensure that no equipment material or people are on the dock bridge Restore dock bridge to its safe stored vertical position with lip extended vertically and storage latch engaged Failure to follow these instructions could result in death or serious injury 60021200 A DANGER Before doing any maintenance repair or adjustment on the dock bridge store the dock bridge in a vertical position with lip vertical and the lock out pin engaged through the left base assembly Before you disable the counterbalance system always perform the following Insert lock out pin into left base assembly Secure the lock out pin with a padlock and place barricades in front of the dock bridge and in the driveway Do not remove the lock ou
32. urity latch engages the top of the spring link when the dock bridge is in the working range If the dock bridge becomes upward biased when in the working range lower the dock bridge and inspect to see if the security latch engages the top of the spring link If the security latch does not engage properly replace it HANDLING AND DISPOSAL OF GAS SPRINGS e Gas springs are under pressure They must be drained of oil prior to disposal e Gas springs are filled with oil Waste disposal only through raw materials trade or special refuse points e Do not dispose of gas springs in household refuse Oil must not get into soil or water NOTE For waste removal of gas spring the following work must be performed in compliance with the accidental prevention and environment protection regulations Wear proper eye protection 1 Clamp gas spring in a vice 2 Drill open units at the specified point with an approximately 1 8 drill bit to allow the gas to escape Shield the drilling point to prevent splashes of oil and debris The hole must be drilled to a depth of about 3 8 Make a hole about 3 4 away from bottom of pressure tube as show in Fig 27 3 The gas spring oil is hydraulic oil and can be disposed of with motor oil transmission lubricant according to the local waste disposal regulations 4 Drain the oil from the gas spring by pumping the piston rod in and out several times October 2013 ADJUSTM ENTS continued Fig 26
33. y 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 28 24 6006333H Loadhog Modular Dock Bridge October 2013 2013 4Front Engineered Solutions Inc DOCK BRIDGE PARTS LIST continued TP Part Number tem aty Part Description LH6 LH6 6 LH7 Washer 1 2 0 562ID x 1 375 OD 6 1 Truarc extr Klipring 5 8 thin 8 8 Socket head cap screw 3 4 10UNC x 3 1 2 212328 212328 212328 9 2 Extension spring L800 CP__ 333054 333054 333054 October 2013 6006333H Loadhog Modular Dock Bridge 25 2013 4Front Engineered Solutions Inc DOCK BRIDGE PARTS LIST continued Part Description Part Number i LH6 6 Label warning vertical 6002120 6002120 6002120 Label warning horizontal 6002121 6002121 6002121 28 Lip ass Cut down lip ass 6006525 6006526 Handle grip yellow 43 DB13 moulded bumper for 13 bumpers DB13 moulded bumper for 26 bumpers Frame paint assy bumper RH 13 bumper Washer 3 4 0 812ID x 2 OD for 13 bumpers 8 Washer 3 4 0 812ID x 2 OD for 26 bumpers Bolt hex 3 4 10 UNC 3 1 2 LG GR 47 Anchor bolt 3 4 x 5 1 2 for 13 bumpers Anchor bolt 3 4 x 5 1 2 for 26 bumpers
Download Pdf Manuals
Related Search