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ILUK 33/44/55/60

Owner’s Manual

Rev.1.5

8.8 Functional Description of Hydrualics When Operating

The following operating functions are relating to Section 8.6. Please use the schematic to understand the

specific functionality of the ILUK liftgate.

8.8.1

Slide Out Function



As soon as the Motor starts to run, valve S8 is energized.



Oil pressure on input “A” sets exits “Av” and Bv” at the valve block under pressure.



The surface at the end of the

piston rod on input “B” is larger than on the shaft at input “A”.



This creates a stronger force at the piston rod (“B”) than at the shaft (“A”).



This factor forces the cylinder to extend.



The lift gate will slide out to the end of the rails.

8.8.2

Lower Down and Auto Tilt Function



The shift valve S5 at the pump and the solenoid release valves S1 and S2 at the cylinders will get

energized. In addition the leaking down stop valve S11 in the back of the mount frame is also

energized.



The gate is designed to lower down by gravity. It will push the hydraulic oil out of the lift cylinder into

the reservoir. The oil passes the solenoid release valves S1 and S2. It also has to pass the energized

S11 valve in the back of the mount frame and the shift valve S5 at the pump.



When the platform touches the ground the auto tilt function will get activated (B-13).



Solenoid release valves S3 and S4 at the tilt cylinders will be activated.



The existing oil in the tilt cylinder runs back through the energized solenoid release valves S3 and S4

and the energized shift valve S5.



Speed of tilting down will be reduced by passing through the restrictor R5.

8.8.3

Level Out Activity



Motor starts running and S5 valve is energized.



Oil pressure on input “B” sets pressure on exits “BK” at the valve block.



The Oil pressure on exit “BK” at the valve block sets the input “B” at the tilt cylinder on pressure.



The platform will tilt up and get in a level position. When the platform is leveled, the B-15 Platform

sensor shuts down the shift valve S5 and activates the S1 and S2 valves at the Lift Cylinders which

directs the fluid into the Lift Cylinders. This causes the platform to raise.

Содержание ILUK 33

Страница 1: ...OWNER S MANUAL ILUK 33 3300 lbs Capacity ILUK 44 4400 lbs Capacity ILUK 55 5500 lbs Capacity ILUK 60 6000 lbs Capacity 06 18 ...

Страница 2: ...Information in this document is subject to change without notice Visit www palfinger com for up to date information and notifications If you received this product with damaged or missing parts contact Palfinger Liftgates at 888 774 5844 Parts Order liftgateparts palfinger com 15939 Piuma Ave Cerritos CA 90703 Tel 888 774 5844 Fax 562 924 8318 572 Whitehead Road Trenton NJ 08619 Tel 609 587 4200 Fa...

Страница 3: ...Platform Cart Stop Operation Optional 20 6 5 Foot Controls Operation Optional 21 7 Preventive Maintenance and Quick Check 22 7 1 Maintenance and Care 22 7 2 Lubrication 23 7 3 Checking and Changing the Oil 24 7 4 Decal Placement and Inspection 25 7 5 Quick Check List 27 8 Troubleshooting 28 8 1 1 Liftgate will not power on 28 8 1 2 ON OFF Switch is On But All Functions are Dead 31 8 1 3 Warning Li...

Страница 4: ...ion 39 8 8 5 Slide In Function 39 8 9 ILUK Push Pull Valving 40 9 Needed Information for Ordering Spare Parts and Repairs 42 9 1 Ordering Spare Parts 42 9 2 Repairs 42 10 Warranty 42 11 Contact Address 43 Company Information Company Name Advisor Name Vehicle Year Make Model Liftgate Information Liftgate Serial Number Liftgate Model Number Date of Purchase Date of Installation Thank you for choosin...

Страница 5: ...ILUK 33 44 55 60 Owner s Manual Rev 1 5 5 1 Manual Updates Revision Description v1 5 Reformatted manual to standard format Revised Liftgate Operiational Instructions Updated Electrical Schematic ...

Страница 6: ...t platform The Hydraulic Power Unit HPU is easily accessible for service and exchange The whole assembly slides out and can be serviced at that point To exchange the Hydraulic Power Unit HPU two hoses and the battery cables need to be disconnected The platform folded in half is supported by two arms linked with a torsion tube The platform in a stored position acts as the under ride guard Lifting a...

Страница 7: ...nager s responsibility to educate the operator on the liftgate and its intended use The operator s attention should be drawn to the permitted load limits and an understanding of the operation to ensure the safety throughout the operation ONE MAN OPERATION Never let an outsider operate the liftgate while you are handling the cargo A misunderstanding can result in serious personal injury In the inte...

Страница 8: ... 6 Never stand in move through or allow anyone else to stand in or move through the area in which the lift operates including that area in which a load might fall 7 This is not a passenger lift Do not ride the lift with unstable loads or in such a manner that a failure would endanger you The lift is not equipped with a back up system to prevent falling cargo in the event of a failure The maximum l...

Страница 9: ...ot avoided could result in death or serious injury CAUTION indicates a potentially hazardous situation which if not avoided may result in minor or moderate injury CAUTION without the safety alert symbol is used to address practices not related to personal injury In this manual we use it to alert you to potentially hazardous situation which if not avoided may result in property damage NOTICE withou...

Страница 10: ...vice Center This Manual has been designed for use in conjunction with the ILUK series liftgate only which is designed for different capacities You have different options to determine the type of your Liftgate 1 Refer to the serial number tag on the Liftgate 2 Ask your employer or lessor 3 Call your PALFINGER Liftgates Authorized Service Center for assistance 4 Call PALFINGER Liftgates for assistan...

Страница 11: ...Power Unit Platform Control Box Wire Management Bar w Rings Liftarms Tilt Cylinders Push Pull Cylinders Bracket Rapid Mount Bolt On RMB Tray 3 5 8 or 10 H Slider Rails Lift Cylinders Control Board PCB Push Pull Cylinders w Tray Platform Bumpers Rapid Mount Bolt On RMB Tray 3 5 8 or 10 H Warning Lights Foot Controls Slide Rail Stops ...

Страница 12: ... Pull Cylinders w Tray Tilt Cylinders Liftarms Hydraulic Power Unit Control Board PCB Wire Management Bar w Rings Control Box w Mount Brackets Slider Rails Push Pull Cylinders Bracket Slide Rail Stops Mounting Brackets w Hardware Mount Plates Tilt Cylinders Platform Warning Lights Foot Controls Slide Rail Stops ...

Страница 13: ... maximum load is at 24 from the rear of the bed extension out to the platform 24 Load By increasing this distance the maximum load of the liftgate is decreasing An overview about the rating depending on the distance from the end of the platform is shown in the following load diagram 24 36 48 60 72 84 10 20 30 40 50 60 70 80 90 100 Distance From Body inches Capacity Capacity 100 at 24 80 at 36 60 a...

Страница 14: ...als Make certain the platform is clear before operating the lift Liftgate shut off switch must be turned off when liftgate is not in use Keep platform in horizontal position when loading and unloading Do not overload refer to capacity decals Loading Position Lower platform Slide out liftgate Unfold platform Storage Position In down position fold up platform tip Slide in liftgate Raise platform Max...

Страница 15: ...Floor Sill Strap Handle 5 Use the Lift Up switch to raise the platform up to bed level until the liftarms are in contact with the liftarm upstops Longsill Chassis Wooden Spacer s Crossmembers Floor Sill Tilt Slide Lift 6 Center the load on the platform 24 away from the rear of the vehicle sill Longsill Chassis Wooden Spacer s Crossmembers Floor Sill Load 24 ...

Страница 16: ...Lift Down switch to lower the platform until the ground rollers on the platform reach the ground NOTE Maintaining the Lift Down switch down will cause the platform to tilt down Longsill Chassis Wooden Spacer s Crossmembers Floor Sill Load Tilt Slide Lift ...

Страница 17: ...bers Floor Sill Tilt Slide Lift 2 Use the Lift Up switch to raise the platform approximately 10 from the ground Fold the tip manaully using the strap and secure the tip to the main with same strap Longsill Chassis Wooden Spacer s Crossmembers Floor Sill 10 3 Use the Slide In switch to store the gate Longsill Chassis Wooden Spacer s Crossmembers Floor Sill Tilt Slide Lift ...

Страница 18: ...ding operation call 888 774 5844 ILUK ILU To operate this liftgate read and understand the operating decals and manuals Make certain the platform is clear before operating the lift Liftgate shut off switch must be turned off when liftgate is not in use Keep platform in horizontal position when loading and unloading Do not overload refer to capacity decals Loading Position Lower platform Slide out ...

Страница 19: ...ing up Lift DOWN Lift UP White Button Black Button Tilt Up at ground level Tilt Down at ground level 6 3 Wireless Hand Held Remote Optional 1 Read the wireless remote owner s manual before operating the liftgate 2 Power the remote by using the ON OFF switch on the rear of the control 3 Each function has a separate button Functions are displayed below 4 After finishing using the gate switch the pow...

Страница 20: ...n moved from its original position 2 To close the cart stops push the cart stop latch inward towards the street side After the latch is in place close each cart stop by pushing each stop down Latch Cart Stop Closed Latch Cart Stop Open Cart Stops Open Position Platform Tip Platform Tip Cart Stops Closed Position Latch Cart Stop Open Cart Stops Open Position Platform Tip Note One latch is used for ...

Страница 21: ...e switches until the platform starts tilting Raise Platform Step on the rear foot control and hold wait three seconds before stepping on the front foot control The platform will tilt up to preset postion before raising IF THE PLATFORM IS NOT RESPONDING TO THE CONTROLS WITHIN THREE SECONDS REPEAT STEPS ABOVE Front Rear Front Foot Control RearFoot Control Lower Platform Raise Platform Front Foot Con...

Страница 22: ...ive care Recommended bases for inspection and maintenance Depending on use Daily Monthly Quarterly Cleaning General lubrication of pins and bushings General lubrication of Slider Rails with WD 40 and Push Pull Cylinder zerks with grease Oil level inspection Oil change Check hydraulic hoses and pipes for leaks Check controls and connections Check platform retention bar Check pins and pin retaining ...

Страница 23: ...l at least once a year preferably in the fall before the weather gets cold The operation of the lift gate will accumulate condensation and some dirt which can interfere with the lift gate functions Oil reservoir inside main tube Pull out tray to check and refill oil 4 zerks 2 Lift Cylinder 1 Lift arm 1 Tilt Cylinder Platform Hinges Cart Stops If installed 3 zerks 1 Tilt Cylinder 1 Liftarm 1 Lift C...

Страница 24: ... change fluid 1 Unscrew the Oil Drain Bolt and let the fluid drain out of the reservoir into an approved cointainer When reservoir is empty fill the reservoir up 2 from the top of the reservoir Change oil at least once a year preferable in the fall before the weather gets cold 2 Place the cover back on to the Hydraulic Power Unit enclosure 2 Oil Drain Bolt Oil Filler When changing or adding fluids...

Страница 25: ...ck the serial number plate to find out the gates specific capacity E 1 ATG RESET Circuit Breaker Protection F 2 ATG WLH Warning Liftgate Can Crush G 2 ATG PLAT Warning Always Stand Clear of Platform Area H 1 ATG CAB Liftgate Shut Off Place Decal next to the On Off Switch in the Cab I 1 ATG WNG Warning Use handle to open must be located underneath handle main section J 1 ATG FC Foot Controls Option...

Страница 26: ... your helper s body to be placed under through or around any portion of the moving lift gate or in a position that would trap them between any parts when the lift gate is operated 7 This lift gate is intended for loading and unloading of cargo only Do not use this lift gate for anything but it s intended use The lift gate is not equipped with a back up system to prevent falling in the event of a f...

Страница 27: ...e air out of the system by operating all functions several times 7 Check all electrical connections Clean and protect battery terminals and check for tightness 8 Inspect all the terminals on the solenoid operated valves at the port of the cylinder Lubricate the terminals for better protection from oxidation if needed Please check the valve block on the back of the main tube and its connections add...

Страница 28: ...onnections 8 1 1 Liftgate will not power on 1 Check the shut off switch Turn ON the ON OFF switch located inside the vehicles cab Truck or control box Trailer ON OFF Switch Location for Trucks ON OFF Switch Location for Trailers On Off Switch Up Down Tilt Lift Slide In Out Up Down For questions regarding operation call 888 774 5844 ILUK ILU To operate this liftgate read and understand the operatin...

Страница 29: ...r reset tab is exposed push the tab back in as shown Circuit Breaker Location Buss Bar Circuit Breaker at Truck Batteries or Auxiliary Battery Box Reset Tab RESET 3 Are the vehicle batteries charged Check batteries and the truck trailer charging system Start truck and run engine in fast idle for charging the batteries If liftgate starts working recharge and load test batteries Measure battery volt...

Страница 30: ... on hydraulic power unit OK Is the ground connection from the liftgate to vehicle properly grounded 6 Check the oil level in the hydraulic power unit The power unit is located inside the enclosure mounted on the mount frame To access the oil reservoir remove the enclosure cover The oil must be 1 down from the top of the reservoir 7 Are there any damages on mechanical or electrical parts such as da...

Страница 31: ...isconnecting plugs reboot board by unplugging J 1 for 5 seconds and plug it back 8 1 3 Warning Lights ON after ON OFF Switch is Turned OFF 1 B 15 Sensor is not working Make sure the wire strain relief is alwas parallel with the top of the platform 8 1 4 Platform Tilts Down Before it Reaches The Ground 1 Adjust B 13 liftarm sensor 2 B 13 is not working Unplug J41 Gate operates without sensor but lo...

Страница 32: ...ttable Circuit Breaker Ground 2Ga Power Cable From Liftgate 2Ga Ground Cable From Liftgate In Line Fuse Wires 2 and 4 go to postitive Wires 1 and Gr Yl go to ground Wiring Diagram Truck Resettable Circuit Breaker Single Pole Socket Auxiliary Batteries Ground Resettable Circuit Breaker 2Ga Power Cable From Liftgate 2Ga Ground Cable From Liftgate In Line Fuse Wires 2 and 4 go to postitive Wires 1 an...

Страница 33: ...Pin 2 too low Check J 1 J 2 power cable at PC board and battery for tight connection oxidation and damage Check J 1 J 2 power cable at PC board and battery for tight connection oxidation and damage Check J 1 J 2 power cable at PC board and battery for tight connection oxidation and damage Check J 1 J 2 power cable at PC board and battery for tight connection oxidation and damage NOTE ILK B 15 Sens...

Страница 34: ... Port Designation J1 Power Pack J1 A Valve J2 Not Used J3 Warning Lights Foot Controls on Platform J4 Valves J11 On Off Switch J30 Control Box J31 Hand Held Remote J32 Not Used J41 A B 13 Sensor J41 B Not Used J41 C B 15 Sensor J42 Valves JB Not Used JK Not Used JP PC Diagnosis ...

Страница 35: ...entire circuit on tractor including ground 2 Trailer Test Ground battery load tester on trailer chassis point C Connect positive cable on positive pole of single pole plug receptacle on trailer B Run load test This will test entire circuit on tractor including circuit breakers and ground between trailer batteries and trailer chassis 3 Tractor and Trailer Charging system test while connected Ground...

Страница 36: ...ILUK 33 44 55 60 Owner s Manual Rev 1 5 36 8 6 Electrical Schematic 15939 Piuma Ave Cerritos CA 90703 ILUK Electrical Schematic 013033 02 01 Power Pack Circuit Board Control Box ...

Страница 37: ...ll valve block are double acting release valves They have to be activated for fluid to go through them in either direction To slide out S8 is activated to allow fluid to both sides of retractable cylinders To slide in S7 is activated to allow fluid to piston rod side of retractable cylinders Functions Lift M S1 S2 Lower S1 S2 S5 S11 Tilt Up M S5 Tilt Down S3 S4 Slide Out M S8 Slide In M S7 ...

Страница 38: ...down by gravity It will push the hydraulic oil out of the lift cylinder into the reservoir The oil passes the solenoid release valves S1 and S2 It also has to pass the energized S11 valve in the back of the mount frame and the shift valve S5 at the pump When the platform touches the ground the auto tilt function will get activated B 13 Solenoid release valves S3 and S4 at the tilt cylinders will b...

Страница 39: ...o push the lift cylinders to extend The platform raises up 8 8 5 Slide In Function Motor starts running and S7 valve is energized Oil pressure on input A sets pressure on exits Av at the valve block The Oil pressure on exit Av at the valve block sets pressure on input A at the cylinder The energized valve S7 is allowing the oil at the bottom of the piston rod to get back through the S5 into the re...

Страница 40: ...ILUK 33 44 55 60 Owner s Manual Rev 1 5 40 8 9 ILUK Push Pull Valving ...

Страница 41: ...59 180 125 138 200 223 282 315 7 8 129 144 322 355 454 501 1 188 210 483 541 682 764 Metric Fasteners Fastener Size Class 8 8 Torque Nm Class 10 9 Torque Nm Class 12 9 Torque Nm Coarse Fine Coarse Fine Coarse Fine M5 5 75 8 1 9 7 M6 9 9 14 16 5 M7 16 5 23 27 M8 24 34 40 M8x1 25 35 42 M10 48 67 81 M10x1 25 49 68 82 M12 83 117 140 M12x1 25 88 125 150 M14 132 185 220 M14x1 5 140 195 235 M16 200 285 3...

Страница 42: ... Palfinger Liftgates has been able to determine that the warranty claim is justified as defined by its warranty conditions Palfinger Liftgates does this by inspecting the defected parts which are sent back to Palfinger Liftgates freight prepaid as well as the written description of the problem which must have been filled out in full The parts that are sent back to Palfinger Liftgates marked with s...

Страница 43: ...ntact Address 15939 Piuma Ave Cerritos CA 90703 Phone 562 924 8218 Fax 562 924 8318 E mail parts order liftgateparts palfinger com 572 Whitehead Road Trenton NJ 08619 Phone 609 587 4200 Fax 609 587 4201 E mail parts order liftgateparts palfinger com ...

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