jost Modul E-Drive User manual
2MUB 006 001 M01 (REV-D) 07-2020 Modul E-Drive
Table of contents
1 Explanation of symbols................................................. 4
2 Foreword...................................................................... 5
2.1 Identification............................................................. 5
2.2 Liability...................................................................... 6
3 Intended use................................................................. 7
3.1 Target group and preliminary knowledge................ 7
3.2 Content and purpose of this documentation........... 7
3.3 Application limits...................................................... 8
3.4 Principle.................................................................... 8
4 Safety............................................................................ 9
4.1 Residual danger/general safety instructions............ 9
4.2 Safety instructions for the owner............................. 11
4.3 Safety instructions for the operating personnel....... 12
4.4 Personal protective equipment................................ 12
4.5 General safety regulations and obligations.............. 13
5 Structure....................................................................... 14
5.1 Scope of delivery...................................................... 14
5.2 Control elements...................................................... 16
5.3 Electric landing gear drive unit................................. 17
6 Installation.................................................................... 18
7 Operation...................................................................... 25
7.1 Checks before initial start-up.................................... 25
7.2 Checks during initial start-up.................................... 26
7.3 Operation of the landing gear.................................. 27
7.4 Optional changeover to 20 A.................................... 29
7.5 Manual movement of the landing gear.................... 31
8 Maintenance work........................................................ 32
8.1 Checking and renewing fuses................................... 32
8.2 Cleaning.................................................................... 33
8.3 Maintenance............................................................. 33
8.3.1 Lubrication..................................................... 35
8.4 Cleaning and replacement of the carbon brushes.... 36
9 Malfunction.................................................................. 37
10 Disposal........................................................................ 39
10.1 Principle.................................................................... 39
10.2 Procedure................................................................. 39
11 Appendix....................................................................... 40
11.1 Technical data........................................................... 40
11.2 Dimensions............................................................... 40
EN
Modul E-Drive MUB 006 001 M01 (REV-D) 07-2020 3
1 Explanation of symbols
WARNING!
Means that death, serious physical injury or significant
material damage can occur if the relevant safety instruc-
tions are not followed.
ATTENTION!
Means that slight physical injury or material damage
can occur if the relevant safety instructions are not fol-
lowed.
ADVICE!
Note on the obligation to read the documentation!
Failure to comply with these instructions can result in
incorrect conduct by the personnel.
ADVICE!
Contains additional important information.
4MUB 006 001 M01 (REV-D) 07-2020 Modul E-Drive
2 Foreword
This landing gear is a product that is at the state of the art with
regard to the safety afforded to operating personnel. Neverthe-
less, the landing gear(s) can pose a danger if it is used by insuf-
ficiently trained personnel, used incorrectly or not in accordance
with the intended use. Reference is made to potential dangers in
chapter 4 "Safety" and by safety instructions throughout the docu-
mentation. This documentation is intended to ensure safe and cor-
rect work on and with the landing gear. It contains safety instruc-
tions that must be complied with!
The E-Drive module is type-approved according to ECE E1
10R-043838. Modifications of any kind will render both the war-
ranty and the design approval void and therefore also cancel the
vehicle's operating licence.
Everyone who works on and with the landing gear must have this
documentation available during their work, and must comply with
the information and instructions that are relevant to them.
The documentation must always be complete and fully legible.
JOST-Werke Deutschland GmbH is not liable for technical or print-
ing errors in this documentation, and neither is it liable for damage
attributable directly or indirectly to the delivery, performance or
utilisation of this documentation.
ADVICE!
Technical modifications reserved. The latest informa-
tion can be found at www.jost-world.com
2.1 Identification
The landing gear is clearly identified by the content of its type
plate.
ATTENTION!
Make sure that the type plate is not damaged, it must
be renewed if necessary.
Manufacturer
JOST-Werke Deutschland GmbH
Siemensstr. 2, 63263 Neu-Isenburg
Tel: +49 6102 295-0
Fax: +49 6102 295-298
www.jost-world.com
EN
Modul E-Drive MUB 006 001 M01 (REV-D) 07-2020 5
2 Foreword
2.2 Liability
The information in this documentation describes the properties of
the product without however guaranteeing these properties.
No liability will be accepted for damage attributable to:
Use of the landing gear not in accordance with the intended
use.
Failure to comply with the documentation.
Independent modifications to the landing gear or the electric
drive.
Incorrect working on and with the landing gear or the electric
drive.
Operation of the landing gear if safety devices are defective
or if safety and protective devices are not attached correctly
or are not functioning.
Defective monitoring of landing gear components subject to
wear.
Incorrectly performed repairs.
Independent, incorrect modification of operating parameters.
Catastrophes, effects of foreign bodies and force majeure.
6MUB 006 001 M01 (REV-D) 07-2020 Modul E-Drive
3 Intended use
The Modul E-Drive landing gear is intended for installation on semi-
trailers. It is used for supporting semi-trailers which are not hitched
up.
The electric drive is only used for extending and retracting the
landing gear – not for moving loads. The load is only allowed
to be lifted and lowered using the air suspension of the vehicle
or by manual operation of the landing gear in the low gear. Up
or unhitching is normally undertaken using the air suspension to
adjust the hitching height of the tractor vehicle to the laden or
unladen trailer. The landing gear can be used on laden and unladen
trailers. Loading is only allowed on correctly and securely parked
trailers in compliance with the corresponding safety regulations.
Any other usage requires the written approval of JOST.
Usage not in accordance with the intended use can represent a
danger to persons and a danger of damage to the landing gear.
The Modul E-Drive is suitable for connection to a 24 V electrical
power supply with negative vehicle earth. The Modul E-Drive is not
intended for uninterrupted, continuous operation. Uninterrupted
operation is limited to 15 minutes. After that, it is necessary to wait
for at least 30 minutes.
The landing gear is not an independently functional piece of equip-
ment. It is designed for mounting on a trailer. Re-evaluation of the
entire system with regard to safety is necessary following instal-
lation. It must not be used until it has been established that the
trailer on which the landing gear has been mounted complies with
the national regulations for road traffic. The landing gear is only
allowed to be put into operation in conjunction with the documen-
tation of the tractor vehicle and trailer as well as of the landing
gear.
Furthermore, no liability and warranty claims will be accepted in
the event of failure to comply with the intended use. The landing
gear is only allowed to be operated under the application condi-
tions prescribed in this documentation.
3.1 Target group and preliminary knowledge
This documentation is intended for the installation, operating and
maintenance personnel of the landing gear.
The installation, operating and maintenance personnel must be
appointed by the owner.
The following precondition apply:
Basic technical knowledge
At least 18 years of age
Reading and understanding of this operation, installation and
servicing manual
In order to obtain the knowledge required for operating this
landing gear, it is necessary for the following measures to be
carried out by the owner:
– Product training
– Safety instruction
WARNING!
Installation and repairs are only allowed to be carried
out by technical specialists with product-specific train-
ing.
3.2 Content and purpose of this documentation
This documentation contains the relevant information for installa-
tion, operation, maintenance and disposal of the landing gear. It is
intended to enable people to work on and with the landing gear
safely.
EN
Modul E-Drive MUB 006 001 M01 (REV-D) 07-2020 7
3 Intended use
Complying with the instructions provided in this document will
make it possible to avoid dangers and prevent damage to the land-
ing gear.
3.3 Application limits
The application limits for the landing gear are as follows:
Operating temperature range -20 °C to +85 °C. When in its
rest position, the system can be exposed to a temperature of
95 °C for maximum 2 hours (e.g. during repainting).
Max. static test load depending on the winch type is up to 25
t per support, the information on the type plates of the par-
ticular landing gears applies.
Lifting load max. 12 t per support (lifting a load is only permit-
ted in low gear)
Horizontal set-up location on consolidated ground (place suit-
able underlay boards underneath if necessary), in compliance
with any relevant national regulations concerning maximum
floor loading.
3.4 Principle
The landing gear is a state-of-the-art product in accordance with
the applicable safety and occupational health regulations. Never-
theless, the following dangers can arise if it is used incorrectly or
misused:
Danger of serious or fatal injury to the user of third parties.
Danger of damage to the landing gear and other property of
the owner.
Danger to efficient use of the landing gear.
8MUB 006 001 M01 (REV-D) 07-2020 Modul E-Drive
4 Safety
This documentation is structured according to the valid EU regula-
tions and contains safety instructions.
The owner of the landing gear is responsible for the operating per-
sonnel receiving the required safety-relevant information, and also
for them reading the documentation.
Individuals are personally responsible for complying with the
safety instructions.
This chapter contains a general introduction to the safety instruc-
tions that are used. Furthermore, it contains important informa-
tion on preventing accidents.
4.1 Residual danger/general safety instructions
Despite the greatest of care having been taken during the design
and construction of the landing gear in accordance with all safety
relevant circumstances, it is nevertheless possible for residual dan-
gers to arise that have been evaluated by means of a risk assess-
ment.
WARNING!
Beware of the danger of crushing when working
with the components of the landing gear, some of
which are heavy.
Beware of the danger of crushing when inserting
the connection shaft into the holes of the trailer. It
is essential to obtain assistance from a second per-
son during this activity so that the connection shaft
can be inserted into the opposite hole without mis-
alignment.
During installation work on the electric drive, also
beware of the crushing hazard between the shaft
and electric drive.
If the landing gear is assembled without being
mounted on a trailer (e.g. for maintenance activi-
ties), it is essential to secure it against falling over.
Be aware of the danger of crushing on the pin and
fork when installing the hand crank of the free-
wheel kit.
Be aware of the danger of crushing when swivelling
up and engaging the crank in the square profile.
Be aware of the danger of crushing between the
inner tube and landing gear foot when installing
the landing gear foot.
Be aware of the danger of crushing when installing
the bracing. Screw on the bracing components
gradually. Loose screw connections cause shearing
edges and thus represent a danger of crushing.
Be aware of the danger of snagging between the
gear wheels during maintenance activities.
EN
Modul E-Drive MUB 006 001 M01 (REV-D) 07-2020 9
4 Safety
WARNING!
The trailer on which the landing gear is being
installed or removed must be secured by a tractor
vehicle or by load lifting equipment of adequate
size. The tractor vehicle or the load lifting equip-
ment (e.g. haul crane) must be braked and secured
to prevent it from being taken into operation. In
addition, a chock must be positioned on both sides
of the vehicle tyre during installation and mainte-
nance work.
The landing gear is only allowed to be operated
when the vehicle is secured (braked).
Make sure that no different types of landing gear
are fitted.
During installation, both sides must be completely
retracted or extended before they are linked
together using the connection shaft. A different lift
distance represents a danger of the trailer tipping
over.
Be aware of the danger of crushing between the
ground and landing gear foot when extending the
landing gear.
Be aware of the danger of crushing between the
landing gear foot and landing gear when retracting
the landing gear.
Keep an eye on both sides during this activity so
that third parties are not endangered either.
Be aware of the danger of crushing in the area of
the extended rolling area with the A/S foot.
WARNING!
Trailers must always be parked on consolidated
level ground. If the ground is soft, suitable underlay
boards must be inserted between the landing gear
foot and ground.
If a stacking truck is driven on an unhitched trailer
and the tipping point is exceeded (projecting cargo
bed beyond the landing gear), there is a danger of
the trailer tipping over. It is essential for the trailer
manufacturer to refer to this danger in its docu-
mentation and conduct a re-evaluation.
Before and during each hitching-up procedure,
make sure that no one is in the danger area.
Beware of the danger of crushing between the two
fifth wheel coupling plates of the tractor vehicle
and trailer when lowering the trailer.
The crank must be relieved of load at the end of
each working procedure by slowly turning it in the
opposite direction, and then securing it in the hold-
ing fixture provided. It is prohibited for the trailer
to be moved if the crank is not secured.
WARNING!
Make sure that no one is in the danger area when-
ever the landing gear is operated. Stop the move-
ment immediately if anyone approaches the dan-
ger area.
10 MUB 006 001 M01 (REV-D) 07-2020 Modul E-Drive
4 Safety
ATTENTION!
Beware of the danger of impact with the trailer
during assembly, installation and maintenance
work.
The screw connections between the landing gear
and the semi-trailer must be tightened to a torque
of 190 +10 Nm. All bolts for the electric drive with
50 + 5 Nm. M16 bolts with strength class 8.8 and
locking nuts with strength class 8 are to be used for
securing the landing gear. Before each use of the
landing gear, check all screw connections are firmly
secured.
Make sure that no different types of landing gear
are fitted.
The crank must be secured in the holding fixture
provided after each working procedure. It is pro-
hibited for the trailer to be moved if the crank is
not secured. The crank holding fixture can also be
mounted on the vehicle by the customer.
Each time before the hitched-up trailer is trans-
ported, make certain that the landing gear has
been retracted fully on both sides.
Before each hitching up procedure, make sure
that the height of the tractor vehicle matches
the height of the trailer, and make any necessary
adjustments using the air suspension.
4.2 Safety instructions for the owner
WARNING!
Make sure that the instructions attached to the
landing gear on delivery remain clearly legible!
Missing and damaged warning signs must be
renewed immediately!
Installation and repairs are only allowed to be car-
ried out by specialist personnel!
Subsequent mounting of additional devices from
third-party manufacturers is prohibited, as are
modifications to protective devices without consul-
tation with JOST or the manufacturer of the addi-
tional device in question!
ATTENTION!
Exclusively use genuine spare parts! Otherwise, war-
ranty regulations might be violated and product liability
risks incurred!
IMPORTANT!
Make sure that anyone who works on the landing gear
for the first time has read and understood this docu-
mentation. In particular, point out the requirement to
observe the safety instructions in this documentation
and on the landing gear. Keep the documentation in the
area of the landing gear and pass on the documentation
to new personnel. Make sure that no one without spe-
cialist knowledge works on the landing gear.
EN
Modul E-Drive MUB 006 001 M01 (REV-D) 07-2020 11
4 Safety
4.3 Safety instructions for the operating personnel
WARNING!
This landing gear is exclusively allowed to be operated
by appropriately qualified personnel! These personnel
must be familiar with all safety instructions and the cor-
responding measures contained in this documentation
and on the landing gear with regard to operation, main-
tenance and cleaning!
4.4 Personal protective equipment
The landing gear is configured so that people who work with the
landing gear will not require any protective equipment beyond the
necessary standard equipment. Wear safety shoes and protective
gloves during installation and maintenance work.
ATTENTION!
Wearing safety shoes is a requirement during
installation and maintenance of the landing gear!
Wearing protective gloves is a requirement during
installation and maintenance of the landing gear!
ADVICE!
People who carry out cleaning and maintenance work
must comply with the prescribed measures for the cor-
responding cleaning agents (e.g. gloves for use with
cleaning agents, protection against spray)!
12 MUB 006 001 M01 (REV-D) 07-2020 Modul E-Drive
4 Safety
4.5 General safety regulations and obligations
In general, the following safety regulations and obligations apply
when working with the landing gear:
The landing gear is only allowed to be operated if in fault-free
and clean condition.
It is prohibited for any protective and safety devices to be
removed, modified, defeated or bypassed.
It is prohibited for the landing gear to be converted or modi-
fied without written approval by the supplier.
Malfunctions or damage must be reported to the owner
immediately. This must be corrected immediately.
Only genuine spare parts are allowed to be used during
repairs.
The safety instructions and operating instructions in the doc-
umentation for the components used must be taken into
account in any event.
All protective and safety devices must be checked regularly by
the owner and maintained.
Only instructed, trained or qualified people are allowed to
work with and on the landing gear.
Operation of the landing gear is subject to national employee
protection regulations as well as national health and safety
and accident prevention regulations.
In addition, comply with the regulations in BGI 599 "Safe
hitching of vehicles".
EN
Modul E-Drive MUB 006 001 M01 (REV-D) 07-2020 13
5 Structure
5.1 Scope of delivery
1Landing gear
2Landing gear feet
3Electric drive
4Type plate (also on the drive)
5Control elements with standard console or universal
bracket
6Crank with crank holding fixture (must be ordered sepa-
rately)
7Connection shaft (must be ordered separately)
14 MUB 006 001 M01 (REV-D) 07-2020 Modul E-Drive
5 Structure
1Landing gear The landing gear is used for supporting semi-trailers and single-axle trailers when they are not
hitched up. For hitching up or unhitching, the height of the laden or unladen trailer is adjusted
using the crank to match the hitching height of the tractor vehicle (unless this is done by means
of the air suspension of the tractor vehicle).
2Landing gear feet The landing gear feet are in moving mountings and are used for compensating for slight uneven-
ness in the ground.
3Electric drive The electric landing gear drive allows the landing gear to be retracted and extended without load.
4Type plate All the manufacturer's information can be read off the type plate. The type plate must be undam-
aged. There is one on the drive and another on the landing gear itself.
5Control elements The control elements are used for moving the landing gear up and down using the electric land-
ing gear drive. The control elements are mounted using either a standard console or universal
bracket. The standard console is used for mounting the control elements (5) and can be bolted
onto the landing gear (1). The universal bracket can be used as an alternative for mounting the
control elements (5) if the standard console is not used.
6Crank with crank holding fix-
ture
(must be ordered separately)
The crank is used for manual height adjustment of the landing gear in low gear (turning clockwise
lifts the vehicle - turning anticlockwise lowers the vehicle) or as emergency actuation in high gear
if the electric drive has failed. The crank holding fixture secures the crank in a safe position. The
crank must be secured in the holding fixture each time after it has been used. Each time before
the vehicle is transported, make certain that the crank is secured in this holding fixture.
7Connection shaft (must be
ordered separately)
The connection shaft is used for connecting the two landing gears together.
EN
Modul E-Drive MUB 006 001 M01 (REV-D) 07-2020 15
5 Structure
5.2 Control elements
The control elements consist of two buttons that are mounted in
the standard console or a universal bracket. The landing gear can
be operated both in momentary-contact operation and in auto-
matic mode. Pressing the top button (1) causes the landing gear to
be retracted, and pressing the bottom button (2) extends it.
ADVICE!
Momentary-contact operation: the landing gear only
moves when the buttons are pressed. Movement stops
immediately when the button is released. Movement
of the landing gear stops automatically when contact is
made with the ground, or when it is fully retracted.
Automatic mode: the landing gear moves until it makes
contact with the ground or is fully retracted, and then
the movement stops automatically. During movement,
the landing gear can be stopped at any time by pressing
any button.
When the limit position is reached, the motor is briefly
run opposite to the previous movement direction so as
to avoid wind-up in the landing gear.
ATTENTION!
Note that the landing gear is not allowed to be used for
lifting trailers in conjunction with the electric drive. The
landing gear stops when it encounters resistance from
the ground, the height can then be compensated man-
ually using the crank in order to achieve the correct sup-
port position.
16 MUB 006 001 M01 (REV-D) 07-2020 Modul E-Drive
5 Structure
5.3 Electric landing gear drive unit
The electric landing gear drive is supplied as a fully preassembled
unit. The cables are wound up on delivery and are attached to the
landing gear drive.
WARNING!
Avoid damaging the housing and cables of the elec-
tric landing gear when installing the landing gear.
The cables to the control elements are not allowed
to be shortened!
Do not connect a charger to operate the drive
without connected batteries.
EN
Modul E-Drive MUB 006 001 M01 (REV-D) 07-2020 17
6 Installation
WARNING!
Installation is exclusively to be undertaken by per-
sonnel who are authorised to do so. During instal-
lation, make sure that both supports touch the
ground at the same time when the landing gear is
lowered. Having different loads on the supports
leads to damage. Follow the specifications (e.g.
installation directive) supplied by the semi-trailer
manufacturer and the installation instructions.
The manufacturer will not accept any warranty
claims if installation is carried out incorrectly.
The electrical connection (terminal 15 or 30) must
be made via a fuse on the tractor unit or semi-
trailer.
The electrical connection (terminal 31) must be at
an earth post provided by the manufacturer of the
semi-trailer.
Material required
28 x M16 hexagon screws (8.8)
The length of the bolts must be selected according to the
vehicle frame (if the standard console with the control ele-
ments is to be bolted onto the landing gear, these bolts must
be selected 20 mm longer than the screw connection without
standard console)
28 x self-locking hexagon nuts M16 (8)
28 x washers
Any additional fastening material required when using the
universal bracket for the control elements
Installation material such as cable ties, cable clamps, protec-
tive tubes, etc.
18 MUB 006 001 M01 (REV-D) 07-2020 Modul E-Drive
6 Installation
ADVICE!
Take the following into account when installing the elec-
trical cables:
The electrical cables must not be secured to brake
cables.
The electrical cables must be routed at an ade-
quate distance from heat sources and moving parts
of the semi-trailer. If necessary the cables must be
fitted with a heat protection corrugated tube or a
chafing guard.
The electrical cables must be routed so that they
have no kinks and cannot chafe.
The electrical cables are to be secured using cable
ties (for example to the semi-trailer’s wiring har-
ness).
Please note the following before carrying out any work
to the electrical system:
Disconnect the semi-trailer from the electrical
power supply of the semi-trailer tractor.
Disconnect the negative terminal of the vehicle
battery (if there is one on the semi-trailer).
When working on the semi-trailer tractor, read out
the error memory of the semi-trailer tractor before
disconnecting the negative terminal from the vehi-
cle battery.
Installation of the E-Drive landing gear module with previous
removal of existing landing gears
Raise the landing gear using the crank (remove the load).
Remove the left and right landing gear.
Install the Modul E-Drive landing gear and tighten it to the
prescribed tightening torque. Make sure that the landing
gears are extended or retracted by the same amount.
When mounting the right landing gear, bolt on the standard
console with the landing gear according to the available space
(left/right). Note that the bolts for this are 20 mm longer than
when installing without standard console. Alternatively, the
control elements can be mounted in the supplied universal
bracket and positioned at any point (note the cable length).
Installation of the E-Drive landing gear module without previous
removal of existing landing gears (first-time installation)
In addition, please note the following:
Secure the landing gear strut at an angle of min. 45°, as
shown in Fig E-Drive/006.
The connection shaft must be 25 mm shorter than the dis-
tance between the fastening flanges on the trailer vehicle.
EN
Modul E-Drive MUB 006 001 M01 (REV-D) 07-2020 19
6 Installation
Installation of the crank
Install the special crank (1) on the right landing gear.
To do this, remove the cable tie (not illustrated - used for
transport protection). Note that the spring (5) is under ten-
sion due to the cable tie.
Push the guide ring (3) that is on the crank onto the crank
drive (6).
Then push the adjusting ring (2) onto the crank drive and
secure it in the hole provided using a clamping sleeve.
Then, with the crank inserted, check that it is certain the
crank drive is pressed to the high gear position by the spring.
ADVICE!
Tighten all screw connections to a tightening torque of
190 + 10 Nm.
WARNING!
If there are bracings on the landing gear, these
must be installed in the same way or attached
according to the illustration on initial installation.
Beware of the danger of crushing when working
with the components to be installed!
20 MUB 006 001 M01 (REV-D) 07-2020 Modul E-Drive
Table of contents
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