Küschall K-SERIES User manual

User manual
english

K-Series 1
Table of contents
1 General ................................................................................3
1.1 Introduction ..................................................................................3
1.2 Warning and instruction signs...............................................3
1.3 Description of the wheelchair................................................3
1.4 Use as per specifications .......................................................... 3
1.5 Before using the wheelchair................................................... 3
2 Using the wheelchair..........................................................4
2.1 Sitting down / getting up ........................................................4
2.2 Driving and steering the wheelchair...................................4
2.3 Driving over stairs and steps ..................................................5
2.4 Driving on ramps and slopes..................................................7
2.5 Stability and balance when sitting in the chair...............8
2.6 Parking brakes.............................................................................. 9
3 Transporting the wheelchair .......................................... 12
3.1 Folding and unfolding the wheelchair .............................12
3.2 Removing and installing the rear wheels ........................13
4 Adjustments and options................................................ 14
4.1 Adjusting the parking brakes...............................................14
4.2 Adjusting the tension of the backrest cover ..................14
4.3 Height adjustable push handles .........................................15
4.4 Foldable Push handles ............................................................15
4.5 Armrest .........................................................................................16
4.6 Mudguards ..................................................................................16
4.7 Transit wheels.............................................................................16
4.8 Antitipper.....................................................................................17
4.9 Security belt ................................................................................18
4.10 Passive lighting ..........................................................................18
4.11 Air pump.......................................................................................18
5 Service...............................................................................19
5.1 Cleaning....................................................................................... 19
5.2 Maintenance .............................................................................. 19
5.3 Service life and disposal ........................................................ 21
5.4 Detecting and repairing defects ........................................ 22
5.5 Technical data............................................................................ 23
5.6 Warranty conditions................................................................ 24
6 Adjustments carried out by the authorized dealer .......25
6.1 Back height adjustment......................................................... 25
6.2 Backrest angle adjustment................................................... 26
6.3 Vario-Ax Adjustment............................................................... 26
6.4 Rear Wheel Position................................................................. 27

2 K-Series
Figure 1
c Front frame
d Seatmodule
e Axle tube
f Rear wheel
g Backrest
h Footrest
i Front wheel

K-Series General 3
1 General
1.1 Introduction
Thank you for purchasing a wheelchair.
With the K-Series you have purchased a top-quality
product. In order to make optimum use of its functionalities and
learn about its safety requirements, please read these operating
instructions carefully and follow the safety instructions.
1.2 Warning and instruction signs
The following signs and abbreviations are used in these
operating instructions:
Warning sign containing important information to
prevent injuries and material damage.
Useful information for user
Required tool: Hexagon socket wrench 3mm
Required tool:Wrench 8mm
Required tool: Screw driver
Some drawings in this manual are allegorized.Your wheelchair
model may differ from the pictured one.
1.3 Description of the wheelchair
The wheelchair consists of a rigid frame conto which the seat
module dand the foldable backrest gare attached.Both the
left and the right side frame are attached to an axle tube e. The
rear wheels fare mounted to the frame with rear wheel fixture
elements.The front wheels ias well as the footrest hare fixed
to the front frame. (See figure 1)
1.4 Use as per specifications
The wheelchair is driven manually and is used for independent
or guided locomotion of gait-impaired persons (e.g. hemiplegia,
paraplegia, tetraplegia, multiple sclerosis, traumatic brain injury,
etc.).The wheelchair may only be used without a guide by
persons who are physically competent to handle the wheelchair
(eg.driving, steering and braking).The wheelchair is designed
for in- and outdoor use on level ground and paved terrain.
1.5 Before using the wheelchair
Before using the wheelchair for the first time, please read
Chapter 2 - Using the wheelchair carefully and follow the
safety instructions.
For security reasons it is essential that you check the
functionality of your wheelchair daily. Pay special attention on
the following parts (provided they are mounted):Wheels,
backrest, antitipper, pushhandles, quick release fork.
Normally, your authorized dealer will unpack and unfold the
wheelchair if necessary for you. If you receive your wheelchair
unfolded, please read Chapter 3.1 - Folding and unfolding the
wheelchair.

4 Using the wheelchair K-Series
2 Using the wheelchair
Always adjust the clothes you wear and your driving
behaviour to the conditions (weather, road conditions,
individual skills etc.).
Please note that the risk of sliding is higher if the ground
is wet, on gravel roads and on rough ground.
2.1 Sitting down / getting up
When getting in or out of the wheelchair, do not stand on
the footrests. Danger of tipping!
You should only get on/off the wheelchair if you are
physically competant. Please consult your physician or
therapist.
Do not sit on the clothing guard, the tire cover or the
armrest when getting on/off the wheelchair. They might
bend or break. Danger of injury!
The method you use to transfer in and out of your wheelchair
will depend on your own capabilities. Generally, the procedure is
as follows:
Pull the parking brake
Hold on to the wheelchair and, if necessary, to a stable object
nearby.
2.2 Driving and steering the wheelchair
Finding the tipping point
The tipping point of the wheelchair depends on the adjustment
of the seat position.The correct seat position is adjusted
depending on parameters such as the weight of the user, the
type of handicap and the driver's driving skills.The seat position
which is adjusted upon delivery corresponds to the information
indicated in your order.
Figure 2
To find the tipping point of your wheelchair, proceed as follows
(see Figure 2):
When determining the tipping point, an aide must always
stand directly behind the wheelchair in order to catch it in
case it tips.
To ensure that you are in control of your wheelchair at
any given point, you should not exceed a speed of 7km/h.
(4Mph)

K-Series Using the wheelchair 5
Loosen the brakes
Sitting in the wheelchair, move forwards briefly, hold both
hand rims tightly and pull back with a slight swing.
By shifting your weight slightly and applying a counter-force
to the hand rims, the tipping point can be determined.
To avoid the wheelchair tipping backward, we recommend that
the wheelchair should be equipped with an antitipper (see
Chapter 4).
Please note that a heavy backpack fixed to the backrest can
affect the tipping behaviour of the wheelchair.
The position of the seat module influences the balance and the
tipping tendency of the wheelchair. The centre of gravity must be
re-defined after adjustments have been made.
2.3 Driving over stairs and steps
Always be very careful and move slowly when driving
over curbstones, stairs or other steps.
Do not try to drive over steps which have a height of more
than 25 cm.
Only drive on stairs with more than one step if an aide is
behind the wheelchair.
With an aide
Figure 3

6 Using the wheelchair K-Series
Driving down a step
Drive to the edge of the step,make sure that the wheelchair
is in a straight position.
Hold on to the two push handles on the rear of the
wheelchair and tilt backward so that the front wheels leave
the ground.
Hold the wheelchair in this position and push it down the
step slowly.The wheelchair driver can support you by using
the hand rims.
Tilt the wheelchair forward until the front wheels have
ground contact again.
Driving up a step
Do not lift the wheelchair by the backrest bar.
Move the wheelchair backward until the rear wheels hit the
edge of the step.
Pull back both push handles, tilt the wheelchair until the
front wheels leave the ground and pull the rear wheels over
the edge.
Move the wheelchair until you can safely tilt the wheelchair
forward and the front wheels have ground contact again.
Without an aide
If you want to drive down a step without a guide, you
must have perfect control over your wheelchair and must
be able to balance it on the rear wheels. (see Finding the
Tipping Point in Chapter2.2).
Figure 4
Driving down a step
Drive to the edge of the step,make sure that the wheelchair
is in a straight position.
Lift up the front wheels from the floor by shifting your body
weight and keep your balance.
Now let the two rear wheels roll down over the edge.Make
sure to hold the hand rims tightly.
Tilt forward the wheelchair until the front wheels have
ground contact again.

K-Series Using the wheelchair 7
Driving up a step
Drive the wheelchair backward until the rear wheels hit the
edge of the step.
Lift up the front wheels from the floor by shifting your body
weight and keep your balance.
Now let the two rear wheels roll up over the edge. Make sure
to hold the hand rims tight.
Move the wheelchair until you can tilt the wheelchair
forward safely.
Lower the front wheels again.
2.4 Driving on ramps and slopes
Only drive on long slopes if a guide is behind the
wheelchair.
Do not drive on steep or lateral slopes (max. assending
grade 7°). Danger of tipping!
Avoid abrupt changes of direction when driving on
slopes. Danger of tipping!
Never pull the parking brakes when the wheelchair is in
motion. Danger of tipping!
Driving uphill
To drive uphill you must set the wheelchair in motion and
maintain the motion in order to be able to control the direction.
Figure 5
Lean forward and drive the wheelchair by pushing the hand
rims quickly and powerfully.
Downhill
When driving downhill direction and, above all, speed must be
controlled.

8 Using the wheelchair K-Series
Figure 6
Lean back and let the hand rims slip through your hands
carefully.You should be able to stop the wheelchair at any
time by holding the hand rims.
Please note that, the hand rims can heat if you brake for longer
periods of time by hand. This applies especially to MaxGrepp
and Supergripp handrims
2.5 Stability and balance when sitting in the
chair
For many every day life activities you will have to bend out of
the wheelchair, forwards,to the side or backwards.This has a
great influence on the stability of the wheelchair. In order to
keep your balance at any time, please observe the following:
Leaning forward
Figure 7
Align the front wheels to the front.(To do this,move the
wheelchair slightly forward and then back again.)
Apply both parking brakes.
When leaning forward, make sure that your abdomen
remains above the front wheels.
Do not lean forward too much. You might fall out of the
wheelchair!
Do not slide forward in your seat to reach out for remote
objects. You might fall out of the wheelchair!
Do not try to bend your abdomen forward between your
legs in order to pick up something from the floor.

K-Series Using the wheelchair 9
Leaning backward
Figure 8
Align the front wheels to the front.(To do this,move the
wheelchair forward a bit and then back again.)
Do not apply the parking brakes.
Reach out backward only as much as possible without
leaving your sitting position.
Do not lean over the backrest. You might tip backward.
2.6 Parking brakes
If your wheelchair is not equipped with a drum brake,
deceleration is effected manually by applying force on the hand
rims of the rear wheels.The parking brakes are used only for
keeping the wheelchair in place when standing and to prevent
it from rolling away.The correct function of the parking brakes is
ensured only if sufficient air is in the tire.(see Chapter 5.2 -
Maintenance)
Never apply the parking brakes when the wheelchair is in
motion - Danger of tipping!
For adjusting the parking brakes please see chapter 4.
Standard brake
Figure 9
Applying the brake
Push the brake lever forward until it reaches the stopper.

10 Using the wheelchair K-Series
Releasing the brake
Pull the braking lever back.
Performance brake
Figure 10
Applying the brake
Push the brake lever forward until it reaches the stopper.
Releasing the brake
Pull the braking lever back.
Active brake
Figure 11
Applying the brake
Pull the braking lever forward (beside or between your legs)
until it reaches the stopper.
Releasing the brake
Push the braking lever back (beside or between your legs).

K-Series Using the wheelchair 11
Stoplock brake
Figure 12
Applying the brake
Fold the red lever at the hub forward.
Releasing the brake
Fold the red lever at the hub back.

12 Transporting the wheelchair K-Series
3 Transporting the wheelchair
Your wheelchair is not suitable for use in vehicles. Do not
sit on the wheelchair during a transport, use a properly
secured seat.
3.1 Folding and unfolding the wheelchair
The wheelchair has a rigid frame. But the backrest can be folded
down and fixed (“click”) into position nonetheless.
Folding the wheelchair
Figure 13
Remove the seat cushion, if present.
Flip clothes-guard inward to rest against backrest.(Both
sides)
Pull the pull-strap on the back of the wheelchair. (1.)
Fold the backrest forward until it snaps into place. (2.)
The backrest bar of the wheelchair can now be used as a handle
during transport.
Unfolding the wheelchair
Figure 14
Pull the pull-strap on the back of the wheelchair. (1.)
Pull backrest by the backrest bar upwards until the backrest
tubes on both sides of the frame snap into position. (2.)
Reposition the clothes-guards.
Do not pull the backrest bar to open the backrest without
pulling the pull-strap first.
Check that the backrest has really snapped into position (try to
pull it to the front) before using the wheelchair.

K-Series Transporting the wheelchair 13
3.2 Removing and installing the rear wheels
To reduce the size of your wheelchair, you can remove the rear
wheels.
Figure 15
Removing the rear wheels
Release the brakes.
With one hand,hold the wheelchair in an upright position.
With the other hand,hold the wheel at the spokes around
the wheel hub (see Figure 15).
Press the axle knob cwith your thumb and pull the wheel
out of the adapter sleeve d.
Installing the rear wheels
Release the brakes.
With one hand,hold the wheelchair in an upright position.
With the other hand,hold the wheel at the spokes around
the wheel hub (see Figure 15).
Press the axle knob cwith your thumb, keep it pressed.
Now insert the axle in the adapter sleeve cof the axle tube
until it comes to a rest.
Release the axle knob. Now, the wheel fits tightly.
After fitting the wheels, always make sure that the
removable axles are engaged completely. The head must
be extended completely. Check by pulling the wheels
outwards.

14 Adjustments and options K-Series
4 Adjustments and options
Ensure that when making any adjustments between the
rear wheel and the clothing guard that there is sufficient
room to avoid contusions/finger traps.
4.1 Adjusting the parking brakes
The parking brakes must be readjusted after adjusting the
position of the rear wheels.
Figure 16
Make sure that sufficient air is in the tyres. (see Chapter 5.2 -
Maintenance).
Loosen the hexagon socket bolt at the brake holder (hex.
socket wrench 5mm), and move the brake to the required
position.
With the brake applied, the brake shoe should not sink into the
tyre more than 4 mm.
Tighten the hexagon socket bolt at the brake holder again.
The function of the parking brakes is only ensured if
sufficient air is in the tyre. (see Chapter 5.2 - Maintenance)
4.2 Adjusting the tension of the backrest cover
If your wheelchair is equipped with a backrest cover with
adjustable tension, you can adjust the tension of the backrest
cover to your individual requirements.
Figure 17
Remove the backrest cushion.
Loosen the Velcro® straps on the rear side of the seat cover,
by simply by pulling them off.
Tighten or loosen the straps, as required, and fix them again.
Adjusting the backrest, see Chapter 6

K-Series Adjustments and options 15
4.3 Height adjustable push handles
The stepless height adjustable push handles allow pushing the
wheelchair in a comfortable position.To ensure a maximum
shoulder room for the wheelchair driver, the push handles are
inclined backward.
Figure 18
Adjusting the height of the push-handles:
Loosen the locking bolt c
Move the handle to the required position
Tighten the locking bolt again.
4.4 Foldable Push handles
1. 2.
3.
Figure 19
Folding Push handles
Hold wheelchair with one hand.
Grasp push handle with the other hand and press the trigger,
which is hidden under the plastic,with thumb
Pull the push handle back and fold down.
Unfolding push handle
Pull the push handle upwards into the horizontal, until it has
snapped into place.
Certify that the push handles have actually been snapped
into position, so that they cannot accidentally fold down
again when pushing the wheelchair.

16 Adjustments and options K-Series
4.5 Armrest
Figure 20
You can remove the armrest completely.
Lift up the armrest and pull it out completely.
4.6 Mudguards
Removable mudguards can be mounted to the wheelchair to
prevent dirt and mud from spraying from the rear wheels onto
clothes when driving outdoors.
4.7 Transit wheels
If your wheelchair is too wide for certain applications (e.g.when
travelling by train or airplane,or when driving in narrow aisles or
through narrow doors), you can use the transit wheels.
Figure 21
Change-over to transit wheels
Move the transit wheels to their working position, by
pushing the pin inward until you can pull down the tube.
Push in the second pin, too, and pull the tube further down
until the pin engages in the recess.
Check if the transit wheels are adjusted to the correct height. The
distance to the floor must not exceed 2 cm.
Move the wheelchair to an object that gives you a firm hold.
Hold on to the object with one hand and incline the
wheelchair until the rear wheel on the opposite side leaves
the floor.

K-Series Adjustments and options 17
Push your thumb on the head of the removable axle and pull
the rear wheel out of the adapter sleeve.
Lower the wheelchair again.Now it rests on the transit
wheels on one side.
Repeat the procedure for the other side.
Warning: Now, the parking brakes are no longer effective!
Warning: The wheelchair does not have the level of
stability when transit wheels are mounted.
Change-over from transit wheels to rear wheels
Move the wheelchair to an object that gives you a firm hold.
Hold on to the object with one hand and incline the
wheelchair until the transit wheel on the opposite side
leaves the floor.
Reinstall the rear wheel with the removable axle (also refer to
Chapter 3.2 - Installing the rear wheels).
Move the transit wheel to its parking position
After re-adjusting the transitwheels, please ensure that
the clips are securely locked into position.
4.8 Antitipper
The Antitipper device prevents the wheel chair from tipping
backward.
Figure 22
Activating the Antitipper
Push the Antitipper down and swing outward until it
engages.
In any case deactivate the Antitipper device before
driving over a curbstone or a step. Danger of tipping!
Deactivating the Antitipper
Slightly press the Antitipper down and swing inward.The
device will swing away upward.

18 Adjustments and options K-Series
4.9 Security belt
Your wheelchair can be equipped with a security belt which
prevents falling out of the wheelchair.
Figure 23
Belt assembly
The assembly of the belt should be carried out by your
dealer!
Pull the belt through the backrest and position it so that the
buckle is placed at the front.
Opening the belt
Press on the PRESS button and pull the locker cout of its
socket d.The buckle will open up.
Closing the belt
Insert the locker ccompletely into the buckle socket d.
Pull the belt euntil you are secured in the wheelchair.
4.10 Passive lighting
You can install two reflectors on the rear wheels.
4.11 Air pump
The air pump is delivered with a valve adapter. Depending on
the size of the valve of your model, it may be necessary to turn
the adapter at the air outlet of the pump.
Remove the locknut
Take out the valve adapter
Turn it around and reinstall it
Tighten the locknut again.

K-Series Service 19
5 Service
5.1 Cleaning
The service life of your wheelchair increases if you maintain and
clean it regularly.
Clean cushions and metal parts with a moist, soft cloth.
Carefully dry your wheelchair after using it in rainy weather.
Sand and sea water may damage the ball bearings.
After using your wheelchair in a dirty environment, clean and
dry it thoroughly as soon as possible.
Do not use rough scouring agents, aggressive cleaning agents
or high-pressure cleaning machines.
5.2 Maintenance
We strongly advise that you should have your wheelchair
thoroughly checked by the authorized dealer once a year, as a
minimum.This is in addition to to the general maintenance
procedures detailed below.
In order to make sure that your wheelchair will give you the
necessary safety and reliability over its whole service life, you
should carry out the following work regularly, or have it carried
out by your authorized dealer.
Maintenance plan
Weekly Check air pressure in tyres
Check the proper fitting of the rear wheel
axle in the sleeve
Monthly Check bolted connections
Oil removable axles
Check tension of spokes
Yearly General check by an authorized dealer
Measuring the air pressure
To ensure that the driving and braking function is maintained, it
is important that the air pressure in the tires is correct.
Check weekly, if there is sufficient air in the tires.
The optimum pressure values are indicated in the following
table:
Type of tire Air pressure
Smooth-running tires 7 bars 700 kPa 100 psi
Treaded tires 7.5 bars 750 kPa 110 psi
Indoor sports tire (Collé) 10 bars 1000 kPa 140 psi
Mountain bike tire 5 bars 500 kPa 70 psi
If you are not sure about the tires of your wheelchair, contact
your authorized dealer.