Humbaur 3000 Series User manual

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

MACHT’S MÖGLICH
Humbaur GmbH
Mercedesring 1
86368 Gersthofen, Germany
Germany
Tel. + 49 821 24929-0[email protected]
Fax + 49 821 249-100www.humbaur.com
Your dealer
Name
Address
Telephone
Email

Please enter the name of your dealer.
Please fill in the service card on the back page and send it to
Humbaur GmbH.
Ask for the handover inspection to be recorded when accepting your trailer.
@
Your trailer:
Model
Type (abbreviation)
Vehicle
Identification
Number (VIN)
Registration number

Please enter your trailer type and the identification.
You will find the dimensions / technical data of your trailer in the
vehicle documents.

Contents of this operating instruction manual
3
MACHT’S MÖGLICH
Notes on use
This operating instruction manual must be carefully read,
understood and complied with in full by anyone who is
responsible for the trailer of Humbaur GmbH and its
modules.
Humbaur GmbH accepts no liability for damage or failures
which arise through disregard of this manual!
Read and observe the operating instruction manual
with all the instructions, warnings and notes before
driving for the first time!
Please note that all illustrations are representative
and may differ from the actual appearance /
equipment.
Also read and observe the instruction manuals for
components such as axles, support devices, cable
winches, etc.!
PART 2
This operating instruction manual “Rear tipper / Part 2 -
HUK” is intended for you as the user of a ready-to-use
trailer.
It provides detailed instructions for handling a rear tipper
and its specific accessories.
It contains supplementary information on safe operation,
care/cleaning, maintenance/servicing,
troubleshooting and decommissioning/disposal of the
trailer.
PART 1
For all other general information on trailers up to 3.5 to, see
the operating instruction manual, “Trailers up to 3.5 to /
Part 1 - General”.
This specific operating instruction manual (Part 2) for your
trailer is provided on the enclosed CD. You can also
download it from www.humbaur.com in the section:
Downloads – Operating manuals
The complete technical documentation is part of the product
and should be kept in the driver's cab of the towing vehicle
for reference at all times.
Key details for the handling, operation and the requisite
care and maintenance work of the trailer are referred to in
this operating instruction manual, and errors can only be
avoided and trouble-free operation guaranteed if you are
familiar with them.
Errors excepted. The manufacturer:
Humbaur GmbH
Mercedesring 1
89368 Gersthofen (Germany)
reserves the right make technical changes to the design,
equipment and accessories with respect to the information
and illustrations in the operating instruction manual.
As a result, no claims whatsoever can be derived from the
information, illustrations and descriptions.
Obligations of the operator
The trailer may only be operated in perfect condition.
Ensure that the operating instruction manual is included
with the trailer e.g. if it is sold.
Only utilise trained or instructed personnel.
Ensure that the operating instruction manual is
complied with in all life cycle phases of the trailer
and that the prescribed personal protective
equipment is worn.
Provide the requisite operating and auxiliary materials.
User group
The trailer should only be operated by users who possess
the following additional prerequisites and knowledge:
Experience in handling tippers.
Initiating tipping processes.
Loading / unloading bulk goods.

Contents of this operating instruction manual
4
MACHT’S MÖGLICH
Keyword index
Use the keyword index from page 5to search for specific
topics.
Refer to the technical documentation of the
installed components for additional information.
1 Safety
You will find safety information for the correct handling of
the trailer in the "Safety" chapter from page 7.
Read this chapter before driving for the first time.
2 General information
You will find details on trailer identification in the "General
information" chapter from page 11.
3 Operation
You will find information on loading and unloading, correct
load distribution and parking in the chapter on "Operation"
from page 19.
4 Operating the chassis
You will find valuable information on the operating elements
of the chassis, such as the electro-hydraulic equipment and
support devices, in the chapter on "Operating the chassis"
from page 29.
5 Operating the body / load securing
You will find out how to operate the body, drop sides and
extensions correctly or about the equipment you can use to
secure the load in the chapter on the "Body" from page 47.
6 Electrical system
You will find information on the lighting in the chapter on the
"Electrical system" from page 79.
7 Testing, care and maintenance
You will find out more about the work required to maintain
operational safety and the value of your trailer in the chapter
on "Testing, care and maintenance" from page 81.
8 Troubleshooting guide
You will find information on troubleshooting and important
service addresses in the "Troubleshooting guide" from page
99.

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MACHT’S MÖGLICH
Keywords
A
Accessories 16
Address
Manufacturer 3
Service 100
Spare parts 100
Aluminium extension 59
B
Bearing of the loading bridge 89
Body 47
C
Care 81
CE conformity 15
Chapter
Electrical system 79
General information 11
Operating the body 47
Operating the chassis 29
Operation 19
Safety 7
Testing, care and maintenance 81
Troubleshooting guide 99
Chassis 29
Check when parking 27
Cleaning / care
Trailer / cargo bed 97
Trailer materials 96
Contact
Humbaur Service Partners 100
Parts logistics 100
Technical customer service 100
Cover net 67
D
Departure check 27
Driving with the towing vehicle and trailer 19
Drop sides
Front drop side 51
Rear drop side 53
Side drop side 52
E
Electric hydraulic pump 95
Electrical system 79
Electro-hydraulic equipment 35, 90
Electric hydraulic pump 95
Hydraulic oil 91
Supply battery 91
Emergency hand pump 40
Extensions
Aluminium extension 59
Side wall extension 59
Steel mesh extension 59
F
Flat cover 68
Flat cover with extension 71
Flat-bed trailer 56
Folding support 44
Forces
Inertia force 75
Load securing force 75
Front drop side 51
G
General information 11
H
Handling
Body 47
Chassis 29
Cover net 67
Drop sides 49
Electro-hydraulic equipment 35
Emergency hand pump 40
Extensions 61
Flat cover 68
Folding support 44
Front drop side 51
Maintenance brace 85
Manual pump 31
Rear drop side 53
Side drop side 52
Spare wheel holder 46
Stanchions 56
Tarpaulin cover 72
Tension lock 50
Tie-down points 77
Toolbox 45
Towing connection 42
Wheel chock 25
Help in the event of problems 101
H-frame 73
Humbaur Service addresses 100
Hydraulic oil 91
I
Intended use 8
K
Keywords 5

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L
Liability exclusion 8
Lighting system 80
Load capacity 24
Load distribution 23
Load securing
Basic principles 74
Types 76
Loading 21
M
Maintenance 81
Maintenance brace 85
Manual pump 31
Manufacturer 3, 8
N
Note
Loading 21
Maximum oil pressure in the hydraulic system 41
Operating Instruction Manual 3
Safe driving with a trailer 20
Safety inspection 82
Tie-down point 76, 77
Trickle charge 93
O
Operation 19
Optional
Cover net 67
Electro-hydraulic equipment 35
Emergency hand pump 40
Flat cover 68
Folding support 44
H-frame 73
Maintenance brace 85
Spare wheel holder 46
Tarpaulin cover 72
Toolbox 45
Towing connection 42
Optional accessories 16
P
perm. gross weight 24
Positional stability 20
Proof of inspection 83
Q
Qualification of the personnel 8
R
Rear drop side 53
S
Safety
Body 48
Body area 10
Chassis area 10
Cleaning / care 97
Drop sides / locks 49
Electro-hydraulic equipment 30, 90
Extensions 60
General safety information 9
Loading and unloading 21
Maintenance brace 85
Manual pump 30
Positional stability 20
Supply battery 35
Through-loading function 54
Service address 100
Side drop side 52
Side wall extension 59
Sources of danger 9
Spare parts address 100
Spare wheel 84
Spare wheel holder 46
Stanchions 56
Start of the journey 9
Steel mesh extension 59
Supply battery 91
Changing 92
Charging / checking the charge status 93
Support load 24
Swinging operation 65
Switch-off / securing mechanisms 88
T
Tarpaulin cover 72
Telescopic cylinder 87
Tension lock 50
Testing 81
Through-loading function 54
Tipping to the rear 65
Toolbox 45
Towing connection 42
Troubleshooting 101
Troubleshooting guide 99
Tyre types 84
U
Unladen weight 24
Unloading 21
Use
Foreseeable misuse 8

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MACHT’S MÖGLICH
Intended 8
W
Wheel chock 25
Towing ring connection 235

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MACHT’S MÖGLICH
1
7
Safety

1Use
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MACHT’S MÖGLICH
Safety
Intended use
The following is permitted:
– Transport of bulk goods such as sand, gravel, stone,
etc.
– Transport of loose load materials such as wood, wood
chips.
– Transport of materials and load materials as solid /
packaged load units, such as bricks on pallets.
– Load securing on the cargo bed with lashing brackets
using form and force load securing methods.
– Tipping bulk goods to the rear.
Qualification of the personnel
HUMBAUR trailers and bodies and their
operating components may only be used and maintained by
personnel who are aware of:
– this operating instruction manual.
– the trailer and the associated towing vehicle.
– the operating and maintenance instructions of the
suppliers.
– the German Road Traffic Act (StVO) and German Road
Traffic Licensing Regulations (StVZO).
– all the respective health and safety / accident prevention
regulations as well as other safety, occupational health
and road traffic regulations.
– the basic requirements of goods transport.
– the hazards arising from handling tippers.
Reasonably foreseeable
misuse
Any use extending beyond the prescribed transport
applications is regarded as other than intended.
In particular, this includes:
– Driving when the drop sides and side wall extensions,
e.g. steel mesh extension, aluminium extension, are not
secured.
– Tipping the cargo bed if personnel / objects are located
on the tipping side.
– Tipping the load onto people or things.
– Driving with a tipped / unsecured cargo bed.
– Driving with folded down / unsecured folding supports at
the rear.
– Climbing onto a tipped trailer or going underneath an
unsecured loading bridge.
– Non-observance of the safety instructions in the
operating instruction manual "Trailers up to 3.5 to / Part
1 - General”.
The manufacturer:
Humbaur GmbH
Mercedesring 1
86368 Gersthofen (Germany)
rejects any damage which arises through disregard of this
manual – the risks are borne solely by the user.
Liability exclusion
Any liability of the manufacturer becomes null and void if:
– the trailer and its components are altered without
authorization.
– the original parts or conversion parts / accessories
approved by Humbaur GmbH are replaced by other
components.
– retrospective changes have been made to the trailer
(e.g. new drill holes in the frame or the reboring of
existing drill holes in the frame). This is considered by
Humbaur GmbH to be a structural change, and the type
approval therefore becomes null and void.
– non-approved accessories or third-party spare /
component parts which are not original HUMBAUR
parts are attached or installed. The type approval of the
trailer, possibly even the insurance cover, becomes null
and void.
– care and maintenance intervals prescribed by the
manufacturer are not complied with.
Any risks and liability exclusions resulting from this also
exist if:
– Acceptance inspections have been carried out by
inspectors / authorised experts of the technical
inspection authorities or officially recognised
organisations.
– Official approvals are available.

1
Check, adjust and secure before each journey
9
MACHT’S MÖGLICH
Safety
Safety first!

WARNING
Driving with folded down / unsecured
drop sides / side wall extensions!
Folded down / unsecured drop sides and side wall
extensions may be torn off and flung away while driving -
risk of impact / crushing!
Folded down drop sides cover the vehicle lights / vehicle
markings – increased accident risk!
Before driving off, check that all drop sides / side wall
extensions
are closed and secured.
Remove all drop sides / side wall extensions /
stanchions when using the trailer as a flat-bed.
CAUTION
Single-axle trailer snaps open!
Single-axle trailers can snap open during loading /
unloading and parking, and crush fingers / hands /
feet or collide with you.
Only park the empty trailer on the jockey wheel or the
drawbar support.
Only couple / uncouple the trailer when it is empty.
Make use of the folding supports during loading /
unloading or couple the trailer to the towing vehicle.
Sources of danger
Take note of the following points without fail:
– Coupling and uncoupling a trailer: Standing in the
danger area is prohibited.
– Driving with unsecured support devices.
– Clearance heights on the route, while loading and
unloading.
– Driving with a tipped cargo bed - not permitted by law.
– Exceeding the permissible gross weight or one-sided
overloading through incorrect loading.
– Poorly secured or unsecured goods and / or body
components.
– Reversing - keep an eye on the rear area.
– Excessive twisting while manoeuvring.
– Overloading of the trailer, axles and brakes.
– Overstressing caused by fitting incorrect wheel and tyre
sizes.
– Use of wheels with incorrect offsets, one-sided run-out
or centrifugal imbalance.
– Overstressing as a result of reckless and inappropriate
driving or handling.
– Impact and shock stress of the axles.
– Speed inappropriate for the road conditions and the
loading status of the trailer, especially in bends.
– The parked trailer can tilt or sink in on soft uneven
ground.
– Driving on severe inclines.
– Tilting the loading bridge too close to a slope or
excavation.
– Loading / unloading of the trailer in an area with a steep
gradient.
– Standing on / in a tipped / moving cargo bed.
– Going under an unsecured loading bridge.
– Jerky braking during tipping.
– Tipping with an engaged parking brake.
– Failure to clean the cargo bed after every use.
– Tipping viscous load materials e.g. asphalt, soil, loamy
sand.
– Tipping large rocks.
– Tipping with an inclined combination.
– Tipping under high-voltage transmission lines (open
power lines).

Check, adjust and secure before each journey
1
10
MACHT’S MÖGLICH
Safety
In the chassis area
Note the following in general:
– Establish the electrical connections.
– Retract the support devices and lock them.
– Check the tyres and rims for damage.
– Check the tyre pressure, including the spare wheel.
– Check the tightening torque of the wheel nuts.
– In the case of a new trailer, re-tighten the wheel nuts
after 50 km and after the first journey with a load.
– Secure the:
spare wheel / spare wheel holder, wheel chock
– Check the trailer lights, repair defective lights.
– Comply with the permissible gross weight.
– Check the number plate and signs.
– Check that the trailer coupling is in perfect condition.
In the body area
Close and secure all body components, such as:
– Drop sides
– Side wall extension
– Steel mesh extension
– Aluminium extension
– H-frame
– Flat cover
– Tarpaulin cover / frame
– Toolbox
– Load securing equipment
– Fix and secure the load.
– Ensure that the load distribution is balanced.

MACHT’S MÖGLICH
2
11
General information

HUK product description
2
12
MACHT’S MÖGLICH
General information
HUK rear tipper
Fig. 1 General view of the single-axle trailer
The HUK is available as a single-axle / tandem trailer.
The sheet steel platform is completely hot-dip galvanised
and can only be tipped to the rear.
The drop sides are made of aluminium, can be folded down
on all sides and are 350 mm high.
All the drop sides can be removed.
Fig. 2 General view of the tandem trailer
Once the drop sides and stanchions have been removed,
the HUK trailer can be driven as a flat-bed trailer.
The HUK trailer features a hydraulic tipping system for
tipping the cargo bed. This can be operated with an electric
hydraulic pump or a manual pump.
The loading bridge can be tipped backwards by up to 45° by
means of a 3-step hard chromium-plated telescopic
cylinder.
The load can be secured by means of the tie-down rings.
The retractable tie-down brackets have a lashing capacity
of up to 400 daN (kg) as standard.
Tie-down brackets with a lashing capacity of up to 800 daN
(kg) can be used as an option.
The load capacity ranges from 900 kg to a max. of 2315 kg
depending on the model.
I - 001 I - 002

HUK product description
13
MACHT’S MÖGLICH
General information
2
Fig. 3 General view, front / rear
1Ball coupling
2Overrun hitch with hand brake lever, brake linkage, brake
accumulator
3Safety cable
4V drawbar
5Automatic jockey wheel
6Manual pump
7Pump lever
8Front position lamp
9Tension lock
10 Mudguard
11 Wheel (tyre)
12 Side drop side
13 Drop side hinge
14 Side reflector
15 Drawbar support
16 Stanchion
17 Rear reflector
18 Multi-function light
19 Rear drop side
20 Underride protection
21 Cargo bed
22 Tie-down point, recessed
23 Front drop side
Optional accessories:
– Side wall extension
– Steel mesh extension
– Aluminium extension
– H-frame
– Cover net
– Flat cover
– Tarpaulin cover / frame
– Folding supports
– Toolbox
– Spare wheel
– Wheel shock absorbers
– Electric hydraulic pump
I - 003
123
5
6
7
8
9
11
12
13
14 15
16
17 18
19
20
21
2023
22
10
4

HUK product description
2
14
MACHT’S MÖGLICH
General information
Fig. 4 Tipping position
1Loading bridge
2Telescopic cylinder
3Arresting/securing cord
4Bearing bracket
The chassis and the tipping platform are welded and hot-dip
galvanised in an immersion bath.
Screw connections are used to mount the loading bridge in
bearing brackets (Fig. 4 /4) at the rear.
Fig. 5 Manual pump
1Pump lever
2Manual pump
The hydraulic tipping function of the cargo bed can be
operated with a manual pump.
The tipping function of the cargo bed can be operated with
an electric hydraulic pump as an option.
Fig. 6 Electro-hydraulic equipment
1Hydraulic oil container
2Electric hydraulic pump
3Supply battery with cover
4Plug-in switch
5Manual emergency pump
6Hand button (electric hydraulic pump)
The version of the HUK with electro-hydraulic equipment is
also equipped with an emergency hand pump for use if no
power is available.
I - 004
1
2
3
4
I - 005
I -
00
5
1
2
I - 006
3
5
6
12
4

HUK product description
15
MACHT’S MÖGLICH
General information
2
CE conformity
Fig. 7 CE conformity
1CE 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.
- see “Address of the manufacturer” on page 100.
I - 022
1
I - 007
1

HUK product description
2
16
MACHT’S MÖGLICH
General information
Load securing
Fig. 8 Tie-down brackets, retractable
Folding supports
Fig. 9 Manually adjustable, at the rear
Side wall extension
Fig. 10 Attached to stanchions
Steel mesh extension
Fig. 11 Attached to stanchions
Aluminium extension
Fig. 12 Attached to stanchions
Flat cover
Fig. 13 Cargo bed with flat cover
I - 008
I - 021
I
- 021
I - 010
I - 011
I - 012
I - 013

HUK product description
17
MACHT’S MÖGLICH
General information
2
Tarpaulin cover / frame
Fig. 14 Tarpaulin cover with a height of 1300 / 1600 mm
Cover net
Fig. 15 Cargo bed with cover net
H-frame
Fig. 16 On the front drop side, secured in stanchions
Spare wheel
Fig. 17 Spare wheel / holder on front drop side
Electro-hydraulic equipment
Fig. 18 Supply battery / hydraulic oil container / electric hydraulic
pump
Hand button of the electric hydraulic pump
Fig. 19 Hand button in the holder
I - 014
I - 015
I - 016
I - 017
I - 018
I - 019
I - 019

HUK product description
2
18
MACHT’S MÖGLICH
General information
Maintenance brace
Fig. 20 Maintenance brace for securing the loading bridge
Toolbox
Fig. 21 on the side of the chassis
I - 020
I - 022