Humbaur 3000 Series Operating Instructions Manual

Rear tipper

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Operating Instruction
MACHT'S MÖGLICH
Rear tipper
Part 2 - HUK (1.3 t - 3.0 t)
en
3000 Series
humbaur.com

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Summary of Contents for Humbaur 3000 Series

  • Page 1 Operating Instruction MACHT’S MÖGLICH Rear tipper Part 2 - HUK (1.3 t - 3.0 t) 3000 Series humbaur.com...
  • Page 2 Humbaur GmbH Mercedesring 1 86368 Gersthofen, Germany Germany Tel. + 49 821 24929-0 info@humbaur.com    Fax + 49 821 249-100 www.humbaur.com    Your dealer Your trailer: Name Model Address Type (abbreviation) Vehicle Identification Telephone Number (VIN)
  • Page 3: Accessories

    The trailer may only be operated in perfect condition. responsible for the trailer of Humbaur GmbH and its this operating instruction manual, and errors can only be Ensure that the operating instruction manual is included modules.
  • Page 4 Contents of this operating instruction manual Keyword index Use the keyword index from page 5 to search for specific 1 Safety 8 Troubleshooting guide topics. You will find safety information for the correct handling of You will find information on troubleshooting and important the trailer in the "Safety"...
  • Page 5: Table Of Contents

    Troubleshooting guide Flat cover with extension Help in the event of problems Chassis Flat-bed trailer H-frame Check when parking Folding support Humbaur Service addresses Cleaning / care Forces Hydraulic oil Trailer / cargo bed Inertia force Trailer materials Load securing force...
  • Page 6 H-frame Service address Maintenance brace Side drop side Liability exclusion Spare wheel holder Side wall extension Lighting system Tarpaulin cover Sources of danger Load capacity Toolbox Spare parts address Load distribution Towing connection Spare wheel Load securing Optional accessories Spare wheel holder Basic principles Stanchions Types...
  • Page 7 Intended Wheel chock Towing ring connection MACHT’S MÖGLICH...
  • Page 8 MACHT’S MÖGLICH...
  • Page 9: Safety

    MACHT’S MÖGLICH Safety...
  • Page 10: Intended Use

    This is considered by using form and force load securing methods. Humbaur GmbH to be a structural change, and the type – Tipping the load onto people or things. – Tipping bulk goods to the rear.
  • Page 11: Sources Of Danger

    Check, adjust and secure before each journey Safety first! Sources of danger – Tipping with an engaged parking brake. WARNING Take note of the following points without fail: – Failure to clean the cargo bed after every use. Driving with folded down / unsecured –...
  • Page 12: Body Area

    Check, adjust and secure before each journey In the chassis area In the body area Note the following in general: Close and secure all body components, such as: – Drop sides – Establish the electrical connections. – Side wall extension –...
  • Page 13: General Information

    MACHT’S MÖGLICH General information...
  • Page 14 HUK product description HUK rear tipper I - 001 I - 002 Fig. 1 General view of the single-axle trailer Fig. 2 General view of the tandem trailer The HUK is available as a single-axle / tandem trailer. Once the drop sides and stanchions have been removed, the HUK trailer can be driven as a flat-bed trailer.
  • Page 15 HUK product description 20 23 I - 003 Fig. 3 General view, front / rear Ball coupling 21 Cargo bed Optional accessories: Overrun hitch with hand brake lever, brake linkage, brake 22 Tie-down point, recessed – Side wall extension accumulator 23 Front drop side Safety cable –...
  • Page 16 HUK product description I - 004 I - 005 I - 005 I - 006 Fig. 4 Tipping position Fig. 5 Manual pump Fig. 6 Electro-hydraulic equipment Loading bridge Pump lever Hydraulic oil container Telescopic cylinder Manual pump Electric hydraulic pump Arresting/securing cord Supply battery with cover Bearing bracket...
  • Page 17: Ce Conformity

    I - 022 I - 007 Fig. 7 CE conformity CE sticker Humbaur GmbH hereby confirms that all the relevant EU directives for the approval and safe use of HUK trailers have been complied with.  If required, request an EC declaration of conformity from us separately.
  • Page 18 HUK product description Load securing Side wall extension Aluminium extension I - 008 I - 010 I - 012 Fig. 8 Tie-down brackets, retractable Fig. 10 Attached to stanchions Fig. 12 Attached to stanchions Folding supports Steel mesh extension Flat cover I - 021 I - 021 I - 011...
  • Page 19 HUK product description Tarpaulin cover / frame H-frame Electro-hydraulic equipment I - 014 I - 016 I - 018 Fig. 14 Tarpaulin cover with a height of 1300 / 1600 mm Fig. 16 On the front drop side, secured in stanchions Fig.
  • Page 20 HUK product description Maintenance brace I - 020 Fig. 20 Maintenance brace for securing the loading bridge Toolbox I - 022 Fig. 21 on the side of the chassis General information MACHT’S MÖGLICH...
  • Page 21: Operation

    MACHT’S MÖGLICH Operation...
  • Page 22: Safe Driving With A Trailer

    Safety during operation Positional stability Take note of the safety / driving instructions for driving with the towing vehicle and trailer stated in the operating instruction manual "Trailers up to 3.5 to / Part 1 - General”. Prerequisites for safe driving with a trailer: –...
  • Page 23: Loading

    Loading and unloading Safety during loading and unloading WARNING WARNING WARNING Dirty / wet cargo bed Loading / unloading with a crane Tipping while driving The cargo bed can become slippery through dirt, The fixing attachment could tear and the load drop The load could slide off the cargo bed in an water or ice - slip / fall hazard! - suspended loads can hit / crush people!
  • Page 24 Loading and unloading Procedure for loading / unloading bulk goods:  Make sure that traffic is not obstructed.  Secure the area if necessary.  Before starting to tip, ensure that the trailer is hooked up (fixed in position) and has been connected to the hydraulic system and activated.
  • Page 25: Load Distribution

    Load distribution / Max. weights Permissible weights and load distribution B - 003 Fig. 3 Centre of gravity indication Centre of gravity of the load Stow away / distribute the load in such a way that the centre NOTICE of gravity of the overall load is above the longitudinal centre line of the trailer as far as possible.
  • Page 26: Load Capacity

    Load distribution / Max. weights Single-axle rear tipper Tandem rear tipper Loads Max. weights Loads Max. weights Loads Max. weights perm. gross weight 1,300 kg perm. gross weight 2,000 kg perm. gross weight 2,700 kg Drawbar load (S) 50 kg Drawbar load (S) 50 kg Drawbar load (S)
  • Page 27: Wheel Chock

    Uncoupling / Parking Uncoupling the trailer Wheel chock secured Manual manoeuvring of the trailer In the rear tipper, the wheel chocks are attached to the side of the chassis in the front section of the trailer as standard. WARNING Unsecured wheel chocks Unsecured wheel chocks could fall off while driving - risk of accidents! ...
  • Page 28: Operating Instruction Manual

    Uncoupling / Parking Manipulating the wheel chock B - 008 B - 007 B - 009 Fig. 7 Removing the wheel chock Fig. 6 Risk of crushing Fig. 8 Wheel chocks positioned Lever Loading bridge Wheel chock Holder Holder Wheel chock Wheel chock ...
  • Page 29: Check When Parking

    Check before departure & when parking Check before departure Check when parking – Trailer has been correctly coupled. – Trailer has been correctly uncoupled. – Electrical plug has been connected. – Parking brake has been applied. – Towing connection (optional) has been disconnected –...
  • Page 30 Check before departure & when parking Operation MACHT’S MÖGLICH...
  • Page 31: Operating The Chassis

    MACHT’S MÖGLICH Operating the chassis...
  • Page 32: Manual Pump

    Hydraulic supply Design variants The telescopic cylinder of the trailer for tipping the cargo WARNING NOTICE bed is actuated by a hydraulic system. Lines are under pressure Using incorrect / old hydraulic oil The following variants are possible: The hydraulic line is under pressure when it is uncoupled. The hydraulic system (hoses, connections, cylinder) could –...
  • Page 33: Manual Pump

    Manual pump Manual pump Manual pump - Tipping the cargo bed F - 001 F - 003 F - 047 Fig. 1 Operating elements Fig. 2 Removing the pump lever from the clamp holder Fig. 3 Removing the pump lever from the pin holder Pump lever Pump lever Retaining pin...
  • Page 34 Manual pump F - 002 F - 004 F - 004 F - 005 Fig. 4 Closing the valve wheel Fig. 5 Tipping the cargo bed Fig. 6 Cargo bed tipped Pump lever in the insertion opening (top) Pump lever Securing cord Valve wheel Cargo bed...
  • Page 35 Manual pump Manual pump - Tilting back the cargo bed F - 006 F - 049 F - 007 Fig. 7 Opening the valve wheel Fig. 8 Removing the pump lever Fig. 9 Securing the pump lever in the clamp holder Pump lever Pump lever Male end piece...
  • Page 36 Manual pump F - 048 F - 050 Fig. 10 Securing the pump lever in the pin holder Fig. 11 Manual pump in driving position Retaining pin Pump piston Pump lever Securing pin R-clip F - 008 Fig. 12 Loading bridge secured Loading bridge U-bracket ...
  • Page 37: Electro-Hydraulic Equipment

    Electro-hydraulic equipment (optional) Electro-hydraulic equipment Charging the supply battery The supply battery can be charged via the battery charging plug if the power is low. Please refer to the instruction manual / safety instructions of the charger manufacturer. Preparation of the charging plug - see page 94in the Maintenance section.
  • Page 38 Electro-hydraulic equipment (optional) Electro-hydraulic equipment - Tipping the cargo bed WARNING Leaking battery acid Battery acid is corrosive. There is a danger of acid burns if it comes into contact with you.  Seek medical advice immediately in the event of contact.
  • Page 39 Electro-hydraulic equipment (optional) F - 023 F - 014 Fig. 17 Closing the emergency hand pump valve Fig. 18 Tipping the cargo bed Valve wheel Holder Button (arrow down) Button (arrow up) Hand button F - 015 Fig. 19 Cargo bed tipped ...
  • Page 40 Electro-hydraulic equipment (optional) Electro-hydraulic equipment - Tilting back the cargo bed F - 016 F - 019 F - 018 Fig. 20 Opening the valve wheel Fig. 21 Lowering with the electric hydraulic pump Fig. 22 Plug-in switch: switched to OFF Valve wheel Button (arrow down) Plug-in switch...
  • Page 41 Electro-hydraulic equipment (optional) F - 020 F - 021 F - 021 F - 022 Fig. 23 Plug-in switch socket with covering cap Fig. 24 Secure the hand button (driving position) Fig. 25 Position for driving Plug-in switch socket Holder U-bracket Covering cap Pump piston...
  • Page 42: Emergency Hand Pump

    Electro-hydraulic equipment (optional) Operating the emergency hand pump F - 013 F - 017 Fig. 26 Close the emergency hand pump valve Fig. 28 Opening the emergency hand pump valve Pump lever Pump piston Hydraulic lines Emergency hand pump Hand button power cable Valve wheel Valve wheel U-bracket...
  • Page 43 Towing connection (option) Towing connection HYDRAULIC-SYSTEM / Cylinder Technische Daten / Technical Data: max. max. l/min = 15,0 l (dm³) = -30 ... + 100 °C 620.00474 F - 027 F - 028 Fig. 29 Hydraulic connection for tractors Fig. 30 Change-over of the hydraulic supply Fig.
  • Page 44: Towing Connection

    Towing connection (option) Connecting the tractor connection Switching over the hydraulic supply Towing connection - Tipping the cargo bed F - 029 F - 030 Fig. 32 Hydraulic line, connection Fig. 33 Switching over to the hydraulic supply of the towing vehicle Line connection Lever Tractor parking socket...
  • Page 45 Towing connection (option) Towing connection - Tilting the cargo bed back Uncouple towing connection Switching between the circuits F - 032 F - 033 Fig. 36 Hydraulic line, parked Fig. 37 Change-over to the electric hydraulic pump Line connection Lever Cover flap Tractor parking socket F - 026...
  • Page 46: Folding Support

    Folding support (option) Folding support Folding down the folding support Folding up the folding support F - 040 F - 041 F - 042 F - 042 Fig. 38 Folding supports folded in at the rear (driving position) Fig. 39 Folding supports folded down Fig.
  • Page 47: Toolbox

    Toolbox (option) Toolbox Opening the toolbox Closing the toolbox A lockable toolbox is available as an option. The toolbox is located on the front of the chassis on the right in the direction of travel. The toolbox is used for stowing away lashing straps, tools, cleaning equipment, etc.
  • Page 48: Spare Wheel Holder

    Spare wheel holder (option) Spare wheel holder Screwing the spare wheel into place The spare wheel, spare wheel holder and securing elements must be properly secured against loss. Spare wheels transported loose (on the cargo bed) must be securely tied down. Carrying a spare wheel holder at the front of the trailer increases the drawbar load.
  • Page 49: Body

    MACHT’S MÖGLICH Load securing / Operating the body...
  • Page 50 General information WARNING Objects on the trailer! Ice, snow, branches and other objects could fall from the body / cargo bed while driving - risk of accidents!  Before setting off, make sure that there are no pools of water, Ice, snow, branches or other objects on the body / cargo bed.
  • Page 51: Drop Sides

    Drop sides Opening and closing drop sides / locks The drop sides enable form-fitting load securing. CAUTION Driving with unlocked or partly removed drop sides Opening and closing drop sides and locks is not permitted by law. Fingers / hands could be crushed when opening / closing drop sides and locks - risk of crushing! Drop sides are heavy! Fitting / removal of the drop sides requires 2...
  • Page 52: Tension Lock

    Drop sides Operating the tension lock Releasing the tension lock Locking the tension lock A - 004 A - 005 A - 006 Fig. 3 Tension lock, secured Fig. 4 Releasing the tension lock Fig. 5 Locking the tension lock Stanchion Bolt bracket Bolt handle...
  • Page 53: Front Drop Side

    Drop sides Handling the front drop side Folding down the front drop side Folding up the front drop side A - 007 A - 008 A - 009 Fig. 6 Front drop side closed Fig. 7 Front drop side open Fig.
  • Page 54: Side Drop Side

    Drop sides Handing the side drop side Folding down the side drop side Folding up the side drop side A - 010 A - 011 A - 012 Fig. 9 Side drop side, closed Fig. 10 Side drop side, open Fig.
  • Page 55: Rear Drop Side

    Drop sides Handling the rear drop side Folding down the rear drop side A - 013 A - 014 A - 015 Fig. 12 Rear drop side closed Fig. 13 Rear drop side, folded down Fig. 14 Rear drop side, removed Tension lock Rear drop side Rear drop side...
  • Page 56: Through-Loading Function

    Drop sides Folding up the rear drop side Through-loading function A - 072 A - 016 A - 070 Fig. 17 Negative example of through-loading Fig. 15 Closing the rear drop side Fig. 16 Trailer with a projecting load Rear drop side, folded down Tension lock Lashing strap Rear drop side...
  • Page 57 Drop sides A - 071 A - 077 Fig. 18 Through-loading function: Rear drop side closed Fig. 19 Placing the front drop side on the rubber pads Rear drop side, closed Front drop side Pump piston Rubber pad A - 078 A - 078 Fig.
  • Page 58: Flat-Bed Trailer

    Using the trailer as a flat-bed Removal of the drop sides and stanchions Releasing the drop side A - 017 A -073 A - 018 Fig. 21 HUK as a flat-bed trailer Fig. 22 Drop sides folded down Fig. 23 Releasing the drop side Stanchion Drop side hinge Rear drop side...
  • Page 59 Using the trailer as a flat-bed Removing the drop side Removing the stanchion Putting on the stanchion A - 019 A - 020 A - 021 Fig. 24 Removing the drop side Fig. 25 Removing stanchions Fig. 26 Inserting the stanchions Drop side Stanchion Locking lug...
  • Page 60 Using the trailer as a flat-bed Putting on the drop side Securing / closing the drop side Locking the drop side A - 074 A - 023 A - 022 Fig. 27 Putting on the drop side Fig. 28 Folding up the drop side Fig.
  • Page 61: Aluminium Extension

    Extensions: Side wall extension, steel mesh extension, aluminium extension (option) Side wall extension / steel mesh extension / aluminium extension A - 026 A - 024 A - 025 Fig. 30 Side wall extension Fig. 31 Steel mesh extension, four-sided Fig.
  • Page 62: Extensions

    Extensions: Side wall extension, steel mesh extension, aluminium extension (option) WARNING WARNING Fitting / removing the extensions Driving with unsecured extensions! Extensions could fall off - risk of crushing! Unsecured extensions could be thrown off while driving - risk of impact / accident! ...
  • Page 63: Extensions

    Extensions: Side wall extension, steel mesh extension, aluminium extension (option) Handling the side wall extension Removing the side wall extension A - 033 A - 027 A - 035 Fig. 33 Side wall extension fitted Fig. 34 Folding down the base drop side Fig.
  • Page 64 Extensions: Side wall extension, steel mesh extension, aluminium extension (option) Fitting the side wall extension A - 036 A - 037 A - 035 Fig. 36 Removing the side wall extension Fig. 37 Side wall extension removed Fig. 38 Removing the lamellar plugs Side wall extension Lamellar plugs Stanchion extension...
  • Page 65 Extensions: Side wall extension, steel mesh extension, aluminium extension (option) A - 038 A - 039 A - 040 Fig. 39 Fitting the side wall extension Fig. 40 Inserting the lamellar plugs Fig. 41 Folding up the base drop side Side wall extension Lamellar plugs Tension lock...
  • Page 66 Extensions: Side wall extension, steel mesh extension, aluminium extension (option) Handling the steel mesh extension / aluminium extension A - 041 A - 042 A - 043 Fig. 42 Rear drop side / side wall extension in the driving position Fig.
  • Page 67: Swinging Operation

    Extensions: Side wall extension, steel mesh extension, aluminium extension (option) Tipping to the rear / Swinging operation A - 027 A - 028 A - 079 Fig. 45 Folding down the rear drop side Fig. 46 Swinging operation of the side wall extension Fig.
  • Page 68 Extensions: Side wall extension, steel mesh extension, aluminium extension (option) A - 032 A - 029 A - 075 Fig. 48 Steel mesh extension wall swung around, negative Fig. 49 Cargo bed tipped, rear Fig. 50 Stops, inner example Rear side wall extension Stops, inner Steel mesh extension wall at the rear Cargo bed...
  • Page 69: Cover Net

    Cover net (option) Handling the cover net CAUTION Unsecured / incompletely attached cover net! The cover net could come loose and fly around when driving. The load could be stirred up / thrown out - accident risk! Make sure that the cover net covers the drop sides completely and has been secured before driving off.
  • Page 70: Flat Cover

    Flat cover (option) Handling the flat cover A - 047 A - 046 Fig. 53 Example: Flat cover with base drop side Fig. 54 Example: Flat cover with steel mesh extension Fig. 55 Example: Flat cover with aluminium extension Drop side Flat cover Eyelet Flat cover...
  • Page 71 Flat cover (option) Positioning the lateral bracing Preparing the flat cover A - 049 A - 050 A 050 A - 051 Fig. 56 Lateral bracings positioned Fig. 57 Preparing a tension rope with a hook Fig. 58 Fasten the tension rope Lateral bracing with angle bracket Tension rope Tension rope...
  • Page 72 Flat cover (option) Releasing the flat cover with base drop side Securing the flat cover with base drop side A - 052 A - 053 A - 054 Fig. 59 Releasing the flat cover Fig. 60 Flat cover opened Fig. 61 Flat cover secured (with base drop side) Drop side slot Flat cover Drop side...
  • Page 73 Flat cover (option) Flat cover with aluminium extension Flat cover with steel mesh extension A - 055 A - 056 A - 057 Fig. 62 Flat cover Fig. 63 Flat cover secured (driving position) Fig. 64 Flat cover Tension rope Flat cover Flat cover Flat cover...
  • Page 74: Tarpaulin Cover

    Tarpaulin cover (option) Handling the tarpaulin cover Securing the tarpaulin cover A - 059 A - 058 A - 076 Fig. 66 Tarpaulin cover, open at the rear Fig. 65 Tarpaulin cover, open at the side Fig. 68 Tarpaulin cover, secured (driving position) Slat insert Frame Tarpaulin cover...
  • Page 75: H-Frame

    H-frame (optional) Handling the H-frame Securing a load A - 061 A - 062 Fig. 69 H-frame mounted Fig. 70 Load securing with H-frame H-frame (screwed) Load Stanchion Tension belt Tie-down point Securing the loading unit Instructions for fitting / removing the Long loads must be secured as individual loading H-frame are provided in the operating instruction units.
  • Page 76 Load securing General information Legal foundations / Statutory provisions Physical foundations Many accidents are attributable to deficient load securing. Load securing is prescribed by the legislature in Germany in the following regulations and legislation: Correctly secured loads prevent: – StVZO (German Licensing Regulations), Section 31 –...
  • Page 77: Load Securing Force

    Load securing Inertia force F Example: Load securing force FS: Force which has to be absorbed by the tie-down equipment Force which counteracts a change in the state of move- – Inertia force F = 2000 daN or the trailer body ment –...
  • Page 78: Types

    Load securing Types of load securing Form-fitting load securing DIN Zurrpunkte The HUK trailer in box form with drop sides can be used for form-fitting load securing by arranging the load in a certain way. (kg) Prerequisite: The dimensions of the load materials and bodies match. Otherwise the gaps arising from e.g.
  • Page 79: Tie-Down Points

    Load securing Handling the tie-down points A - 067 A - 066 A - 068 Fig. 74 Tie-down bracket (standard), 400 daN (kg) Fig. 75 Tie-down bracket retracted Fig. 76 Tie-down bracket (optional), 800 daN (kg) Side drop side V lashing rails Tie-down bracket DIN Zurrpunkte Cargo bed...
  • Page 80 Load securing Load securing / Operating the body MACHT’S MÖGLICH...
  • Page 81: Chapter Electrical System

    MACHT’S MÖGLICH Electrical system...
  • Page 82: Lighting System

    Lights Lighting system / Electrical supply Take note of the safety instructions and the Front position lamp (2x) instructions for the electric system in the operating instruction manual, “Trailers up to 3.5 to / Part 1 - General”. Refer to the category “Electro-hydraulic equipment” The electrical lighting system operates with 12 V as on page 35 for operation of the electro-hydraulic standard.
  • Page 83: Care

    MACHT’S MÖGLICH Testing, care and maintenance...
  • Page 84: Safety Inspection

    – Bolts – Damaged and non-functioning trailer parts must – Attachments be exchanged for original spare parts of – Switch-off and securing mechanisms Humbaur GmbH. – Electrical system / Electro-hydraulic equipment Testing, care and maintenance MACHT’S MÖGLICH...
  • Page 85: Proof Of Inspection

    Safety inspection Proof of the HU / SP Maintenance of axles / wheels Overrun hitch W - 001 W - 002 W - 003 Fig. 1 Proof of inspection (in the operating instruction manual Fig. 2 Example: Operating instruction manual for axles Fig.
  • Page 86: Spare Wheel

    Tyres/wheels Checking the tyres  Check the tyre pressure / tread depth on all wheels incl. Tyre type in bar max. the spare wheel (Fig. 5 /2) on a regular basis and before 175 / 70 R13 long journeys. 175 / 80 R14 ...
  • Page 87: Maintenance Brace

    Maintenance support (option) Using the maintenance brace Supporting the loading bridge WARNING Working under an unsecured loading bridge! The loading bridge could drop in an uncontrolled manner - risk of impact / crushing! People may be crushed.  Before working under the loading bridge, make sure that it has been properly secured with the maintenance brace.
  • Page 88 Maintenance support (option) Parking the maintenance brace W - 032 Fig. 8 Maintenance brace parked Maintenance brace Rubber pad  Tip the loading bridge completely, so that the maintenance brace is relieved of load.  Swivel the maintenance brace downwards onto the rubber pad (Fig.
  • Page 89: Telescopic Cylinder

    Telescopic cylinder Telescopic cylinder W - 007 W - 008 W - 006 Fig. 9 Telescopic cylinder components Fig. 10 Bearing at the top on the loading bridge Fig. 11 Bearing underneath on the chassis Upper / lower bearing Loading bridge Wiper / seal Securing cord Screw connection...
  • Page 90: Switch-Off / Securing Mechanisms

    Stroke limiter of the loading bridge Switch-off / securing mechanisms W - 009 W - 010 Fig. 12 Switch-off / securing mechanisms with electro-hydraulic Fig. 13 Securing mechanism for manual hydraulic system equipment Securing cord Eyelet on the chassis Eyelet on the loading bridge Switch-off valve for electro-hydraulic equipment Securing cord / stroke limiter Turn off lever...
  • Page 91: Bearing Of The Loading Bridge

    Bearing of the loading bridge Bearing of the loading bridge W - 012 W - 013 Fig. 15 Front bearing points Fig. 16 Lower the loading bridge onto the chassis U-bracket Loading bridge Rubber pad Front bearing point / U-bracket W - 011 Fig.
  • Page 92 Electro-hydraulic equipment Safety instructions / warnings The electro-hydraulic equipment (motor, hydraulic WARNING tank, hoses, electric cables, and connections) is low-maintenance. Leaking battery acid! However, the equipment needs to be regularly checked for Battery acid is corrosive, and if it comes into damage, ageing, fracture, and material fatigue.
  • Page 93: Hydraulic Oil

    Electro-hydraulic equipment Checking / changing the hydraulic oil Checking the supply battery Supply battery - Opening the cover W - 015 W - 016 W - 017 Fig. 18 Hydraulic oil container Fig. 19 Covered supply battery (driving position) Fig. 20 Removing the supply battery Cover, oil filler spigot Rubber fasteners, secured (2x) Supply battery cover...
  • Page 94: Changing

    Electro-hydraulic equipment Changing the supply battery Checking the charge status W - 018 W - 020 Fig. 21 Installing the supply battery Fig. 23 Tester Clamp fastening Smartphone Connection terminal Battery Guard Installation date label W - 033 Cable connections Warning sticker NOTICE Fig.
  • Page 95: Trickle Charge

    Electro-hydraulic equipment Charging the supply battery / Trickle charge Charging by means of an external battery charger Checking the charge status (12 V) Towing vehicles without a battery charging socket according to DIN ISO 11446 do not normally have a cut-off relay. Damage to the vehicle battery and electronic system as well as exhaustive discharge of the vehicle battery could therefore occur.
  • Page 96 Electro-hydraulic equipment Charging using the battery charging plug Pre-assembly of the battery charging plug W - 022 W - 023 W - 024 Fig. 26 Connection for battery charging plug, open Fig. 27 Battery charging plug inserted Fig. 28 Connecting the cable to the battery charging plug Battery charging socket Battery charging plug Front section of the charging plug (with contacts)
  • Page 97: Electric Hydraulic Pump

    Electro-hydraulic equipment Electric hydraulic pump W - 025 W - 026 Fig. 29 Closing the battery charging plug Fig. 30 Electric motor with pump Front section of plug (with contacts) Hydraulic connection Rubber sealing ring Electric connections Back of plug Electric motor with pump Charging line, connected Contacts...
  • Page 98: Trailer Materials

    Cleaning / care Trailer materials W - 027 Fig. 31 Materials / surfaces Aluminium, anodised Steel, hard-chrome plated Soft rubber Plastic Steel, galvanised Rubber (hoses) The trailers are assembled from various materials. Always take note of the specific features for care of the materials / surfaces.
  • Page 99: Cleaning / Care

    Cleaning / care Cleaning the trailer / cargo bed W - 028 Fig. 32 Cleaning the chassis / cargo bed Tie-down points Drop side hinge  Open and remove the drop sides (Fig. 32 /3) WARNING Drop side folded down - see “Removal of the drop sides and stanchions”...
  • Page 100 Cleaning / care Testing, care and maintenance MACHT’S MÖGLICH...
  • Page 101: Troubleshooting Guide

    MACHT’S MÖGLICH Troubleshooting guide...
  • Page 102: Service

    Only use original Humbaur spare parts! fault source and enable it to be rectified to the extent that written agreement. the next service station of Humbaur GmbH can be reached. Technical customer service Spare parts can be obtained stating the VIN and the part...
  • Page 103: Troubleshooting

    Hydraulic system / Electro-hydraulic equipment Fault Possible causes Remedy Cargo bed cannot be lowered. A line or screw connection in the hydraulic system is Have the line / screw connection replaced in a specialist  defective. workshop. Telescopic cylinder does not retract. A screw connection in the hydraulic system is loose.
  • Page 104 Hydraulic system / Electro-hydraulic equipment Troubleshooting guide MACHT’S MÖGLICH...
  • Page 105 Service card We wish you a pleasant & safe journey MACHT’S MÖGLICH...
  • Page 106 MACHT‘S MÖGLICH MACHT’S MÖGLICH Humbaur GmbH  Mercedesring 1  86368 Gersthofen  Germany  Tel. +49 821 24929-0  info@humbaur.com  www.humbaur.com      ...

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