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Hydraulic circuit diagram

IMPORTANT

The hydraulic circuit diagram is supplied with the liftgate as a separate document and is
part of this user manual.

IMPORTANT

The hydraulic circuit diagram must always remain with the liftgate.

You can also get the circuit diagram from the Technical Service.
For this you will need the liftgate serial number (see page 7) or the drawing number from
the relevant circuit diagram.

For additional technical information, visit https://www.maxonlift.com/support/technical-
service. To contact Technical Service, please call

1-800-227-4116

or email us

at

[email protected]

.

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Содержание GPC 17 X-1

Страница 1: ...R MAINTENANCE MANUAL GPC 17 X 1 GPC 22 X 1 GPC 33 X 4 GPC 44 X 4 LIFT CORP 11921 Slauson Avenue Santa Fe Springs CA 90670 2221 P 800 227 4116 562 464 0099 F 888 771 7713 Date 12 2020 Part no S 20 912...

Страница 2: ...n MAXON LIFT CORP Corporate Office 11921 Slauson Avenue Santa Fe Springs CA 90670 2221 P 800 227 4116 562 464 0099 F 888 771 7713 Customer Service Parts USA Canada Mexico P 800 227 4116 F 888 771 7713...

Страница 3: ...tended use 10 2 7 Responsibilities of operating company and requirements for operator 11 2 8 Commissioning 12 2 9 Handling and behavior during operation 15 2 10Danger notice sticker Safe handling of t...

Страница 4: ...cannot be switched off 35 5 6 Emergency Platform moved by mechanical means 36 5 7 Malfunction 36 Decommissioning disassembly and disposal 37 Electrical circuit diagram 40 Hydraulic circuit diagram 41...

Страница 5: ...you risk injury damage to property and voiding of the warranty Make sure that this manual always remains with the liftgate or vehicle IMPORTANT For information on maintenance and annual inspections se...

Страница 6: ...ion box 4 Lifting arm 5 Lifting cylinder 6 Closing arm 7 Closing cylinder 8 Compact power unit 9 Underbody impact guard 10 Mounting bracket depending on vehicle and liftgate 11 Control unit with Servi...

Страница 7: ...ning flags 3 Torsion box 4 Lifting arm 5 Lifting cylinder 6 Closing arm 7 Closing cylinder 8 Compact power unit 9 Underbody impact guard 10 Mounting bracket 11 Control unit with Service switch series...

Страница 8: ...ear left 4 Lifting gear right 5 Lifting cylinder 6 Closing cylinder 7 Compact power unit integrated in axle assembly 8 Underbody impact guard 9 Mounting bracket 10 Control unit series 10 11 Service sw...

Страница 9: ...2 Warning flags 3 Lifting gear left 4 Lifting gear right 5 Lifting cylinder 6 Closing cylinder 7 Compact power unit integrated in axle assembly 8 Underbody impact guard 9 Mounting bracket 10 Control u...

Страница 10: ...or integrated in the axle assembly This power pack serves to move the lifting or closing cylinder s to the desired position as well as the two cylinders of the optional hydraulic supports The hydrauli...

Страница 11: ...tgate serial number and the rating plate The liftgate serial number is the liftgate s most important ID number It is required for all technical support spare parts orders and warranty claims and is fo...

Страница 12: ...nor or moderate injury NOTICE Failure to heed this notice can result in damage to property or the environment And IMPORTANT Important information or useful tip for correct use 2 2 Safety The Safety se...

Страница 13: ...s Danger from pressurized liquids and gases Hydraulic components lines can burst and cause injury Inspect hydraulic components lines at regular intervals maintenance schedule Install only state of the...

Страница 14: ...fied specialist using a test weight and a manometer Fuses Defective fuses may only be replaced by fuses that correspond to the values specified in the circuit diagram and on the control unit Larger fu...

Страница 15: ...ction report dealing with the static and dynamic inspection performed before commissioning the liftgate is kept in the inspection record book The liftgate must be operated in accordance with the user...

Страница 16: ...on the liftgate Watch out for potential crushing points Define and observe the danger zone including for third parties 6 Check that supports are correct positioned on a suitable surface before commiss...

Страница 17: ...against danger from vehicles 11 During operation the liftgate platform must be made clearly visible to vehicles approaching from behind by means of warning flags and flashing lights The warning lights...

Страница 18: ...e difficult to recognize hazards and result in injuries Regularly check the condition of warning labels stickers maintenance schedule Replace damaged or illegible product labels warning labels instruc...

Страница 19: ...ered including platform tip 4 Do not unnecessarily stand within the liftgate s range of movement 5 Do not stand under the lifting device and load 6 Do not stand on the lifting device except for operat...

Страница 20: ...e platform see notices 24 and 26 and the illustration for maintaining a safe distance during operation when using the handheld control on page 27 13 Do not deliberately cause the lifting device to vib...

Страница 21: ...danger notice sticker regarding unsecured loads applies IMPORTANT Dirt can impair the functioning of cart stops The operating company must keep these safety devices clean at all times 20 When transfe...

Страница 22: ...able liftgate may be moved only when the lifting device is in the driving position see pages 2 3 4 and 5 The one exception is when the necessary stability is guaranteed and certified in the inspection...

Страница 23: ...ential incorrect and correct usage of the liftgate This sticker is supplied with all new liftgates The installing company must place it in a clearly visible location on the inside of the vehicle cargo...

Страница 24: ...here is no built in protection against loads that exceed the rated capacity or that are not within the correct loading distance and are moved from the vehicle to the platform Overloading of this type...

Страница 25: ...d the maximum load carrying capacity specified in the load diagram When the platform is completely lowered it may be traversed loaded only with loads that do not exceed its rated capacity Operate the...

Страница 26: ...l panel membrane switch From the control panel all functions are initiated by pressing two different pushbuttons simultaneously The diagram shows which buttons are responsible for each individual func...

Страница 27: ...ol panel membrane switch the 2 button control panel can be used to operate the lifting and lowering functions WARNING Be careful not confuse the control elements for tilt up tilt down and lift lower I...

Страница 28: ...ctivating the ExpressControl button and the Open function causes the liftgate to open and lower simultaneously so that it reaches the ground more quickly WARNING Be careful not confuse the control ele...

Страница 29: ...er WARNING Be careful not confuse the control elements for tilt up tilt down and lift lower Incorrect operation could injure third parties Define and observe the danger zone including for third partie...

Страница 30: ...s for tilt up tilt down and lift lower Incorrect operation could injure third parties Define and observe the danger zone including for third parties WARNING Crushing or shearing hazard Observe the spe...

Страница 31: ...tion from the ground When operating the platform from the ground the operator must stand at least 40 from all edges of the platform and from the crushing edge between the platform and vehicle 3 7 Usin...

Страница 32: ...connections are tight Check that cables and hoses are able to move freely Correct shearing and chafing points on cables and hoses Immediately replace damaged hydraulic hoses with new hoses of the sam...

Страница 33: ...y an authorized repair shop The components must be tested by a qualified specialist and the results entered in the inspection record book 1 After breakage of a load carrying device inspect the support...

Страница 34: ...e control unit to malfunction resulting in injury to people near the liftgate or driving behind the vehicle Battery capacity The battery capacity necessary for operating liftgates is normally specifie...

Страница 35: ...s WARNING This high current accompanied by a low voltage causes the copper winding to overheat As a result the protective coating on the copper winding melts possibly resulting in a short circuit or m...

Страница 36: ...Platform position 0 to approx 60 LED off Tilt sensor S1 in switching position is functioning correctly Corner lights are activated Platform position 0 to 10 tilted down LED on Tilt sensor in switching...

Страница 37: ...et to power pack is defective Control lines in power pack are defective Control panel control cabinet is defective 3 Liftgate does not open or opens slowly Platform sticks at the vehicle cargo area Po...

Страница 38: ...within the loading distance Load is too heavy Safety valve is incorrectly set Pump is defective Voltage is too low 10 Platform does not tilt up from ground when unloaded Control panel is defective Mi...

Страница 39: ...to stop the motor from running Then take the liftgate to the nearest authorized repair shop or call our customer service so that the defect can be corrected WARNING Electrical hazard for persons comin...

Страница 40: ...breaks down in this way contact customer service or an authorized repair shop for more information DANGER Danger Serious risk of death or injury When the liftgate is unsecured and the safety devices e...

Страница 41: ...he aid of a crane or forklift When disposing of the liftgate the hydraulic system lifting and closing cylinders reservoir hydraulic pump solenoid valves cables high pressure hoses etc must be complete...

Страница 42: ...nly trained and qualified maintenance personnel WARNING Risk of injury during disassembly assembly particularly of safety devices e g removing solenoid valves due to improper or incorrect assembly dis...

Страница 43: ...ng materials store all parts in a secured manner and carefully remove transport locks WARNING When transport locks are removed parts may fall If parts fall fluid can escape Carefully remove transport...

Страница 44: ...always remain with the liftgate You can also get the circuit diagram from the Technical Service For this you will need the liftgate serial number see page 7 or the drawing number from the relevant cir...

Страница 45: ...ways remain with the liftgate You can also get the circuit diagram from the Technical Service For this you will need the liftgate serial number see page 7 or the drawing number from the relevant circu...

Страница 46: ...replace any components which are found to be defective during the first 2 years of service and will reimburse for labor based on Maxon s Liftgate Warranty Flat Rate Labor Schedule All claims for warra...

Страница 47: ...ned within 60 days of the claim date for consideration to Warranty Department MAXON Lift Corp 5920 Alameda St Huntington Park CA 90255 Maxon s warranty policy does not include the reimbursement for tr...

Страница 48: ...44 Notes...

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