QUESTIONS AND ANSWERS
Lift Bed FAQ: Frequently Asked Questions About HUBBERT
In our lift bed FAQ, we answer common questions about HUBBERT, installation, technology, leveling, fail-safe operation and personal consultation.
If your question is not answered here, we will be happy to clarify it directly in a personal consultation.
Quick Selection
General
What HUBBERT is and who it is suitable for
Vehicles & Variants
Suitable models, motor position and special solutions
Technology & Operation
Motors, touch display, saved heights and control system
Leveling
Sleeping level, length compensation and structural degrees of freedom
Installation & Scope of Delivery
What is included and how the system is installed
Safety & Service
Load capacity, failure, emergency operation and delivery time
General
What is HUBBERT?
HUBBERT is an electrically height-adjustable lift bed system for campers, panel vans, living cabins and special vehicle builds. The bed moves to the desired height at the touch of a button, remains stable in every position and can be leveled when needed.
Who is the HUBBERT system suitable for?
HUBBERT is suitable for DIYers, professional converters and anyone who wants to use space in a camper or cabin more flexibly without converting the bed every day.
Is HUBBERT suitable for DIYers?
Yes. The system is designed so that DIYers can install it themselves with the online instructions. We also clarify the key dimensions with you before production.
What makes HUBBERT different from a classic lift bed?
HUBBERT combines electric height adjustment, fully automatic leveling, stable guidance, self-locking trapezoidal spindles, synchronized movement and flexible installation. This means the system can be used not only at the top or bottom, but also remains stable at intermediate heights.
Vehicles & Variants
Does HUBBERT fit in my panel van?
We check this together based on the vehicle model, interior height, desired bed position and conversion concept. Suitable variants are available for many common panel vans.
For which vehicle models are suitable variants available?
Suitable variants are available for Fiat Ducato and its sister models, VW Crafter / MAN TGE, Mercedes Sprinter, Ford Transit and Renault Master. Special solutions can also be coordinated.
Is HUBBERT also suitable for living cabins and expedition vehicles?
Yes. HUBBERT is also suitable for living cabins, GFK cabins, special bodies and expedition vehicles. For these builds, the dimensions and mounting situation are coordinated individually.
Can HUBBERT also be installed in finished production motorhomes?
In theory, yes. However, the effort is usually high and should be carried out by a specialist workshop. Typical challenges include routing cables, finding suitable mounting points and existing components such as fresh water tanks in the installation area.
How do I know whether motor top or motor bottom is better?
We clarify the suitable motor position with you during consultation. It depends on the vehicle, available space, bed position and conversion layout.
Why is motor bottom recommended for the Mercedes Sprinter?
For the Mercedes Sprinter, motor bottom is usually recommended because the body tapers strongly toward the top. This often makes the lower motor position the cleaner solution.
Are special solutions possible?
Yes. Special solutions are possible. We check the dimensions and installation situation with you and clarify whether the standard CAD data fits or whether an individual adjustment is needed.
Can HUBBERT also be installed in the front area?
Yes, that is possible. The main point is to check where suitable mounting points are available, especially in relation to the sliding door.
Can HUBBERT also be used as a flexible transport platform?
Yes. We have already implemented HUBBERT as a flexible transport platform. The E-Version is especially well suited for this use case.
Can HUBBERT also be installed in a tiny house or apartment?
Yes, that is possible. In this case, a transformer is used for the power supply.
Is a bunk bed possible?
Yes. For this, two separate HUBBERT systems are currently required. They are installed parallel to each other with an offset.
Technology & Operation
How does the HUBBERT system work technically?
HUBBERT works with stepper motors, self-locking trapezoidal spindles, four guide rods and two crossbars. The system runs fully synchronized and is controlled by our control unit.
How is HUBBERT operated?
HUBBERT is operated via a modern touch display. Saved heights, leveling and comfort functions can be selected directly from the display.
How many heights can I save?
You can save four programmable heights. Typical positions are sleeping, sitting, storage and travel position.
Which comfort functions are available in the touch display?
The touch display includes functions such as dark mode, reading mode, PIN assignment, language selection, adjustable display time, speed and motor current settings as well as diagnostics.
What does home position mean?
The home position is the reference point for the system. It is detected via optical limit switches and used as the basis for reproducible movements.
Why are self-locking trapezoidal spindles important?
Self-locking trapezoidal spindles keep the bed securely in position. This keeps the bed stable in every height without a separate lock.
Can the sensitivity of collision control be adjusted?
Yes. The sensitivity of collision control can be adjusted and, if required, disabled.
What is reading mode?
Reading mode levels the bed and raises the previously defined head area in steps from 1 to 5.
What happens if I forget my PIN?
There is a default PIN that always works.
Which languages can I set HUBBERT to?
The system can be set to German, English, French and Italian.
Why can the speed be changed in the settings?
Reducing the speed can increase the available motor force.
Why can I adjust the motor current?
The motor current can be adjusted so the motors can run more quietly and be tuned to the application.
Can I combine motor bottom and motor top in one system?
Yes. This is possible. The rotation direction of the corresponding motors only has to be adjusted.
Does the bed always have to be at the top?
No. The default position, meaning the limit switch position, can also be at the bottom so the bed normally stays low and is raised only when needed.
Do I have to switch the bed off every time?
No. Typically, the bed is switched on at the start of a trip, moved to the home position once and switched off again at the end of the trip.
Does the leveling sensor have to be installed in the bed?
No. The leveling sensor can also be installed on the vehicle.
Can I set how long the display stays on?
Yes. The display-on time can be configured in the setup.
How are the individual motors positioned?
Motor 1 is at the front left on the driver’s side. The numbering continues clockwise.
Can I stop the bed movement at any time?
Yes. Touching the touch display while the bed is moving stops it immediately. This acts as an emergency stop function.
What is the “Set Home” function for?
Set Home is used if the normal home position cannot be reached, for example because a large pillow is in the way. The current position then becomes the new reference point, so care must be taken that the bed does not travel too far down.
How precisely does HUBBERT move?
With stepper motors with 200 steps and a 4 mm spindle pitch, the theoretical positioning precision is around 0.02 mm.
Which diagnostic functions does HUBBERT offer?
The system can display or indicate limit switch states, undervoltage, voltage, short circuits, motor states, temperature and leveling sensor information.
Leveling
Can HUBBERT level the bed?
Yes. HUBBERT can align the bed so that you can sleep level even when the vehicle is parked slightly unevenly.
Does my vehicle have to be completely level for this?
No. The vehicle does not have to be perfectly level. HUBBERT levels the bed itself within the available adjustment range.
How does length compensation work during leveling?
Length compensation happens in two directions: the crossbars slide into each other, and the bed can move on the crossbars through cut-outs in the bed frame.
Can the system jam while leveling?
No. Because of the structural degrees of freedom and length compensation, the system cannot jam while leveling.
Does leveling replace leveling wedges?
In many situations, yes. HUBBERT can compensate noticeably more than typical leveling wedges, depending on how much space is available above the bed.
How much can I compensate through leveling?
This depends on the available space above the bed, but it is significantly more than can usually be compensated with wedges, roughly comparable to about three to four wedges.
Does the bed have to be calibrated before leveling?
Yes. The bed is brought once into the desired sleeping position and this position is saved during calibration.
Does leveling always have to be horizontal?
No. The bed moves to the calibrated position. If you prefer sleeping with your head slightly raised, this can also be saved.
I have a living cabin and only want to use the bed for leveling. Is that possible?
Yes. In this case, the bed can remain in the lower position, for example above a garage, and still be used for leveling.
Installation & Scope of Delivery
What is included in the scope of delivery?
The scope of delivery includes all components of the HUBBERT system: motors, control unit, touch display, guide rods, crossbars, brackets, cables and the online instructions via link/QR code.
Are the bed frame, bed board or mattress included?
No. The bed frame, bed board or slatted frame and mattress are not included.
How is HUBBERT mounted?
HUBBERT is mounted using four guide rods and two crossbars. The exact mounting points are coordinated to suit the vehicle and conversion.
How flexible is the installation position?
The size and installation position are highly flexible and are planned according to vehicle, interior height, desired bed position and conversion concept.
Can I install HUBBERT myself?
Yes. HUBBERT is designed so that DIYers can install it themselves with the online instructions.
Are technical drawings available for checking dimensions?
Yes. CAD data is available for all models. The customer checks whether the dimensions fit the vehicle or whether a special solution is needed.
What if I measured incorrectly, or do the dimensions have to be exact?
The dimensions do not have to be exact to the millimetre. The upper bracket has around 18 cm of adjustment range, and the lower foot can be shortened by around 15 cm or extended by around 5 cm.
Can I use a bed extension with HUBBERT?
Yes. The guide rods can be modified so they can also be loaded in tension for a bed extension.
Am I fixed to a specific slatted frame?
No. You can use a slatted frame or a disc spring system depending on your needs.
How can I adjust the limit switch position?
The limit switch position can be adjusted using the screw on the limit switch: loosen it a quarter turn, move the switch and tighten it again.
How deep does the motor need to be recessed in the partially integrated cabin variant?
For the partially integrated variant, the motor is recessed by about 15 mm.
What is the maximum possible lift?
The trapezoidal spindles are 1.98 m long. After deducting the required mechanical length, the possible travel is about 1.85 m.
Do I need electronics knowledge?
No. HUBBERT works with low voltage and the instructions guide you step by step through connecting the cables.
Safety, Load Capacity & Service
What lifting force does HUBBERT have?
The standard version has a total lifting force of around 100 kg. The E-Version reaches around 250 kg lifting force. The static load capacity of the system is around 600 kg.
What is the E-Version?
The E-Version is the optional version with increased lifting force, suitable for heavier applications and also for lifting upward with a person on the bed.
Which power supply does HUBBERT use?
HUBBERT works with 12 V to 60 V.
Does the bed remain safely in position while driving?
Yes. The self-locking trapezoidal spindles and stable mechanical guidance keep the bed safely in position.
What happens in case of power failure or a fault?
In an emergency, the system can be powered by a simple battery pack with adapter. If necessary, the trapezoidal spindles can also be turned by hand.
How service-friendly is the control system?
The board is modular. Drivers and Teensy can be replaced easily if required. LEDs help with diagnostics such as undervoltage or short circuits.
How long is the delivery time?
After the dimensions have been clarified, delivery time is usually four to six weeks from order.
Where can I find the prices?
Prices for panel van variants are listed on the variants page. Cabin versions are quoted on request.
Does it matter if a motor is blocked?
No. The microcontroller detects lost steps and stops immediately. Stepper motors are also robust in this respect.
Do I have to worry about destroying the board if something is connected incorrectly?
No. The new version is short-circuit-proof and reverse-polarity protected at all external connections.
Which cable cross-section do I need?
The power supply is designed for 10 A. For normal cable lengths, 2.5 mm² is sufficient.
Can HUBBERT also be shipped?
Yes. HUBBERT can be shipped.
Can I view HUBBERT on site?
Yes. HUBBERT can be viewed by appointment in our showroom.
How often does maintenance need to be carried out?
We recommend checking the trapezoidal spindles every six months and greasing them if required.
Am I flexible in the choice of colour?
Yes. Our standard RAL colour is 7016 anthracite grey fine texture, but other RAL colours are available on request.
I do not want to install HUBBERT myself. Do you have installation partners?
Yes. You can find our installation partners on the website. If required, we can also help look for a suitable partner in your area.
Are there pictures of already installed beds?
Yes. Customer photos and examples of installed beds are available in the gallery.
If I get stuck, will I get help from you?
Yes. We support you by phone, video call or directly during the project if questions come up.
Can I also move upward with the bed?
The standard version can still move with one person, but it is not designed for this purpose. The E-Version is made for this and includes a switch on the bed for up, down and leveling.
Is HUBBERT suitable for off-road use?
Yes. HUBBERT is suitable for off-road use. Additional stoppers can be installed for very demanding off-road applications.
Any Questions?
Send us your vehicle model, year of manufacture, interior height and desired bed position. We will check together which HUBBERT variant fits.
