Krabat Sheriff S1 User manual

1
Krabat Sheriff S1 / S2
User Manual

2
Safety
All Krabat products are CE marked according to MDR 2017/745 and 93/42 / EØF, Class 1 of 14 June
1993 - Medical Device Directive. This certifies that it meets all relevant European safety
requirements. This manual is approved according to these standards. The shelf life of the product
corresponds to a lifespan of about 5 years under normal use. Then the product should be renovated
by Krabat AS or an approved partner to extend the life. All service must be performed by Krabat or an
authorized partner.
Products with electrical components must be submitted to Krabat for a technical review / overhaul
before it is sent out to use again.
The CE-label is to be removed if the product is modified, or non-original parts are used!
Adjustments not described in Krabat user manuals shall only be carried out by Krabat, or by
personnel approved by Krabat.
Krabat products are not toys! Improper use may cause damage to both user and/ or the product.
Warranty
Krabat provide a guarantee of 2 years on all its products. This guarantee is aimed at defects in
workmanship or materials. The guarantee may be reduced or waive if service or daily maintenance
are not observed. It is the customer’s responsibility to ensure that maintenance is carried out.
The warranty does not cover accidental damage, including damage caused by improper use or lack of
maintenance. The warranty does not cover normal wear or wear parts.
The warranty is void if non-original parts, or if the product is repaired or modified by personnel not
approved by Krabat.

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The information in this manual was correct at the time of publication. The information can
be changed by the manufacturer without notice, therefore go to www.krabat.no for
updated instructions for use and updated technical information about the product at all
times.
Revision history:
Revision:
Date:
Author:
Notes:
1.0
10.10.2016
A.L. Sørensen
Etablished
2.0
29.04.2021
J.Sørensen
Major layout changed, warnings, technical data and
revision table added
2.1
22.06.2021
A. Simensen
Page 13 added.

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Sheriff S1 / S2
Side
General
06
Main Components
07
Use
08
Individuel adjustments
08
Accessories
13
Technical data
13
Warnings and definitions
14
Warranty
17

5

6
General
Krabat Sheriff is an active children’s wheelchair for indoor and outdoor use.
Krabat S1 accommodates children in the age of approx 2 - 7 years, Krabat Sheriff S2 approx 6 - 12
years. The wheelchair is lightweight and the cambered wheels make it easy to maneuver.
The sitting position is individually adjusted using height and angle of seat, height of backrest, width of
rear wheels, position and different angles of the footrests. The Krabat Sheriff has got a saddle seat,
and the sitting position is close to identical with the one of Krabat Sheriff. The use of this wheelchair
should be determined by your local physiotherapist or occupational therapist.
The Krabat Sheriff promotes a neutral position in the hip and pelvic and abducts the hips. This
together with the wide support given by the footrests ensures a wide base of support. The
wheelchair promotes good stability in the lower body and gives the spinal column natural curves.
This provides a good base for balance and activity in the trunk and upper body. All together it gives
the child a close to ideal position for handling the wheelchair.
The saddle seat enhances an active position rather than a slumped and passive position. The upright
and active position also makes chest control and head control easier, which again will benefit speech,
swallowing and respiration.
To ensure an optimal sitting position it is important to try out and adjust the wheelchair before use.
Do not use the wheelchair unless an individual trial has been carried out. Furthermore, do not let
other children use the wheelchair without an individual trial.
As children grow they change their movement and sitting pattern on a regular basis. It is likely that
the child will need another size of the sitting unit or other adjustments. Contact your local
physiotherapist or occupational therapist if the product is not optimal or if adjustments are needed.
The wheelchair is developed and tested to accommodate the maximum weight of 60 kg.
Attention: For the weak sighted we recommend to download the user manual for Sheriff S1/S2 at
www.krabat.no in PDF. Scale the document to desired size.
01

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Main components –Sheriff S1 / S2
The Krabat Sheriff S1/S2 has the following main components:
01 Saddle seat with adjustable angle of the sitting unit, upholstery
02 Adjustable backrest, upholstery
03 Adjustable footrests
04 Frame
05 Propelling wheels
06 Fly wheel
07 Parking brake
03
05
04
07
06
02
Fig. 01
01

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Use
To obtain the optimal sitting position the height and angles of the seat,
backrest and footrests need to be adjusted. This should be done by a
therapist who has received training from Krabat AS, or a representative for
Krabat AS
Most of the angles can be adjusted infinitely with the accompanying 4 mm Allen key situated under
the seat. Always tighten all screws after adjusting the wheelchair.
The wheelchair is for indoor and outdoor use on hard and flat surfaces.
Avoid sharp curves and sudden stops when descending a hill. PS: The handbrake is a parking brake.
Do not under any circumstances use this brake when going downhill.
Always activate the brake when going in or out of the wheelchair.
The use of this wheelchair should be discussed with your therapist or someone who knows the child
well. It is important to establish in which situations the child should use the wheelchair, how long
they should use it and when to progress the time spell. This needs to be evaluated continuously as
the child gets familiar with the wheelchair.
It is important to get information about how to get in and out of the wheelchair. This should be done
under the individual trial or at delivery. Make sure the parking brake is activated before placing a
child in the wheelchair.
Footrests
Place the feet on the footrest and tighten the belts. Children who use ankle-foot orthotics should
wear these together with their shoes, whilst sitting in the Krabat Sheriff S1/S2.
The height of the footrests is done by adjusting the strap between the frame and the footrests. In
order to do so loosen the 4 screws which adjust the position forward or backward along the frame
(fig. 02a). Each footrest is mounted with 2 screws. We can adjust the width and angle of the footrest
by loosening the front screw (fig. 02b). By loosening both screws, we can adjust the rotation of the
footrest (fig. 02b).
It is important to tighten the screws properly after adjustment.
Fig. 02a
he height of the footrest is adjusted by loosening 4
screws.
Fig. 02b
The width and angel is adjusted by loosening the
front screw on top of the footrest.

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Place the child on the saddle seat and tighten the belt.
Make sure the child is placed well into the seat in the
midline position with symmetry in the legs / lower body.
Use the hip belt both to maintain the position in the
saddle seat and to reduce the risk of falling out of the
chair. It should be used at all times. The angle of the seat
can be adjusted by loosen 4 screws under the seat, using
the accompanying 4 mm Allen key (fig. 03) Adjust the
angle to desired position and tighten the screws.
It is important to tighten the screws properly after
adjustment.
The height of the seat can be adjusted by 2 screws under
the seat, where the rods are sticking up from the frame
(fig. 04). Simply loosen the screws and place the height
of the seat in desired position.
It is important to tighten the screws properly after
adjustment.
The height of the backrest can be adjusted and fixed
using the locking lever (fig 05). Open the locking lever
and fix it firmly at desired height. If the locking lever
does not fix the backrest properly, it can be tighten using
the plastic ring under the lever.
Angle of seat
Height of the seat
Height of the backrest
Fig. 03
Adjusting the angle of the seat
Fig. 04
Adjusting the height of the seat
Fig. 05
Adjusting the height of the backrest
The tipping point can be adjusted by moving the seat
forward or backward along the frame. Simply loosen
two screws under the seat using the accompanying 4
mm Allen key (fig. 06). Slide the seat into desired
position and tighten the screws properly.
However, we recommend a representative from Krabat
AS together with the local therapist for this adjustment.
This is to ensure optimal point of tipping and safe use of
the wheelchair. When changing the point of tipping we
also alter the tipping angle.
It is important to tighten the screws properly after
adjustment.
Adjusting the tipping point
Fig. 05
Back height adjustment

10
Fig. 07
Parking brake activated (lower position)
Fig. 08
Parking brake deactivated (upper position)
The parking brake is activated by pressing the handle in front of the seat downwards (fig. 07). The parking
brake locks both propelling wheels at the same time. The parking brake is deactivated by pulling the handle
upwards (fig. 08).
Always activate the parking brake when taking a child in or out of the wheelchair. The parking brake should
not be used whilst the wheelchair is moving. This could cause dangerous situations.
The wires for the parking brake might need adjustment when used for a period of time. If so contact Krabat
AS or a representative for Krabat AS.
It is important to tighten the screws properly after adjustment.
Use of the parking brake
The Krabat Sheriff S1/S2 can be fitted with 2 anti tippers. The standard position gives us a max tipping angle
of 7 degrees. This can easily be altered to 14 degrees. Krabat recommend all users to have anti tippers fitted.
Use of the anti tip (accessories)

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Fig. 09a
Inner position –deactivated
Fig. 09b
Pull plunger and slide the anti tipper out
Fig. 09c
Outer activated position
Fig. 09d
Change the angle of tipping –pull plunger and
slide to inner activated position

12
The width of the chair is adjusted by pulling the propelling
wheels out. Loosen the 2 screws shown in fig 10, pull out
and tighten the 2 screws properly. If the wheelchair is fitted
with anti tippers, these need to be loosened as well.
It is important to tighten the screws properly after
adjustment.
Adjusting the width
Fig. 10
Adjusting the width of the propelling wheels
Transport
The Krabat Sheriff S1/S2 has Quick Release shafts. This ensures a quick and easy dismantle of the propelling
wheels, when transporting the chair.
Press in the button in the centre of the shaft whilst pulling out the whole wheel (fig. 11). Always make sure
the button pops out when mounting the wheel. This is an indication of a fixed shaft and a wheel ready for
use. Make sure the propelling wheels are mounted as prescribed, to avoid dangerous situations.
The backrest can be folded down towards the seat to make the wheelchair more compact during transport
(fig. 11). Do not send the Krabat Sheriff S1/S2 on a plane without suitable packaging (crate, suitcase, etc.).
Shipping of the Krabat Sheriff without the suitable packaging can harm the product and cause dangerous
situations.
The Krabat Sheriff S1/S2 is not approved for car transport. The child must be seated in a car seat.
It is important to tighten the screws properly after adjustment.
Fig. 11
Dismantle / mounting of the propelling wheel and folding of the backrest

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Accessories
There is a wide range of accessories available for the Krabat Jockey such as table, head support and
push bar. There are also a variety of different harnesses, ankle cuffs, bags, etc. available. See
www.krabat.com for an updated list of accessories.
All accessories come with their own user manual.
If you need accessories or other equipment for your Krabat Jockey chair, please contact a Krabat
representative, or a Krabat-approved therapist for installation and adjustment.
Maintenance
All metal and plastic parts can be cleaned using mild soapy water. The seat and backrest is covered
with different types of upholstery, either an “all-in-one” cushion or a cushion with separate seat cover.
The “all-in-one” cushion may be cleaned using a cloth and soapy water or machine washed at 40
degrees Celsius. The separate seat cover may be machine washed at 40 degrees Celsius. None of the
cushions or seat covers can be tumble dried.
This is a personal product, individually customized according to medical requirements and demands
from each user. No regular maintenance is required.
Wash the chair’s components when needed. Follow normal hygiene advice and keep the chair clean
and tidy at all times.
The textile is fastened to the chair with Velcro. Advice about spot removal is given at www.krabat.com.
Bearings and other movable parts are maintenance free and should not be lubricated.
To prevent injury, no part of the product shall be serviced or maintained while in use.
NOTE: If any part should break or is obviously damaged, please stop using the chair and contact
authorized personnel for service or appropriate corrective measures.
Individual adjustments and adaptations
If the sitting unit for some reason needs adjustment please contact a physiotherapist or an
occupational therapist. Adaptations of the sitting unit must be made by qualified personnel or Krabat
AS.
Do not under any circumstances make any modifications by yourself.

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S1
S2
ISO 7176-15
Min
Max
Min
Max
Comments
Max load
60 kg
60 kg
Nominal tire air pressure
6,0 bar
8,0 bar
6,0 bar
8,0 bar
Diameter of propelling wheels
20”
24”
Width
56 cm
64 cm
61 cm
69 cm
Length
66 cm
76 cm
Height
69 cm
78 cm
79 cm
89 cm
Weight
8,9 kg
9,1 kg
Standard, with no accessories
Seat height above floor
44 cm
47 cm
48 cm
52 cm
Tipping point w/ antitip
7 °
14 °
7 °
14 °
Diameter hand rims
44,5 cm
53,5 cm
Height of shaft
25,5 cm
30 cm
Depth of seat
28 cm
31 cm
Width of seat
24 cm
30 cm
Angle of seat
-15 °
+ 15 °
-15 °
+ 15 °
Total adjustment angle - 30 °
Width of backrest
26 cm
32 cm
Angle of backrest
-15 °
+ 15 °
-15 °
+ 15 °
Fixed to seat
Turning radius
40 cm
44 cm
Technical data
Materials:
Frame: Anodized aluminium
Upholstry: Flame retardant foam
Neoprene
Cover: Flame retardant fabric
Plastic parts: POM, PA6 og ABS
Other metal parts: Aluminium and steel
For upholstery washing instructions, see instructions
on each product.

15
Warnings and definitions
General warnings:
Choking hazard:
During normal use, when the user is in a wheelchair and possibly secured, there is no danger
of suffocation. To avoid possible choking hazard, do not leave a child unattended with the
Krabat Sheriff.
Danger of crushing:
There is little risk of crushing injuries during normal use, as long as the adjustment
procedures are followed. If screws and other moving parts do not need to be tightened as
necessary, there may be movement on the product - which in turn can pose a risk of
crushing. To prevent the possibility of such incidents, never leave the child in the chair
unattended.
Danger of tipping:
There is always a real danger that a product may tip, as long as you do not comply with
restrictions set by a therapist with training from Krabat, information that accompanied the
product or information available on Krabat.no. A general rule is that any movement outside
the "footprint" of the product towards the surface can pose a risk of tipping. The higher the
user, will also affect the possibility of tipping. The same applies to additional components
fitted, such as tables, communication tools and sacks / bags. To prevent the possibility of
such incidents, one must avoid this, and never leave the child in the chair without
supervision.
Definition of applied parts:
The definition of applied parts are parts of the product that come into contact with the
USER during normal use / to perform its function.
Definitions of applied parts are: seat unit and chair back including cushions, support (s)
including ankle straps / ankle cuffs and hip belt if fitted, headrest, table and driving handle.

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Transport and storage
During transport and / or storage, Krabat Sheriff should remain operational in normal use
within its specifications after transport or storage in the following temperature ranges:
•-25 ° C to +5 ° C, and
•+ 5 ° C to +35 ° C at relative humidity up to 90%, non-condensing;
•35 ° C to 70 ° C at water vapor pressures up to 5o hPa
after the product has been removed from packaging and then between uses.
Note: Krabat Sheriff should be kept indoors.
Environmental impacts during use
When the Krabat Sheriff is to be used, it must be used under the following environmental
conditions:
•In temperatures between + 5 ° C to + 40 ° C;
•At relative humidity of 15% to 93%, non-condensing
•At an atmospheric pressure between 700 hPa to 1,060 hPa
This product is classified for non-continuous operation.
Normal operating cycle for use - 10% or 2 minutes of operation followed by 18 minutes of
standstill.
Use after storage:
If Krabat Sheriff is stored cold (below 0 degrees Celsius), wait 20 minutes before using the chair.
If the Krabat Sheriff is stored in a warm place (above 50 degrees Celsius), all surfaces must be
allowed to cool to ambient temperature before placing the child in the chair. Wait 20 minutes
before using the chair.
Avoid burns scalding:
If the Krabat Sheriff is left in direct sunlight, move the chair away from direct sunlight and check
that all surfaces of the chair have reached an acceptable temperature before placing the child
in the chair.
Recycle components and materials in accordance with local, state, and national regulations.

17
Explanations of symbols
Explanation of the various symbols used on the product and in this manual:
Symbol
Importance
Importance
Expanations
Symbol for use worth marking medical
equipment.
Producer
Indicates the manufacturer of medical devices
Medical electrical equipment - Part 1: General
requirements for basic safety and essential
performance
See instructions
for use
Indicates the need for the user to see the
user manual
Medical electrical equipment - Part 1: General
requirements for basic safety and essential
performance
See instructions
for use
See instructions for use
General warning sign
Warning: read all
warnings and
safety rules in the
operating
instructions
When a user is sitting in the chair and the
chair is to be moved, e.g. from room to room,
it is NOT recommended to do this with the
seating unit in the highest position.
To prevent accidental tipping, never move the
chair when the seat is in the highest position.
Medical electrical equipment
Type BF applied
part
Identification of type BF applied part
according to IEC 60601-1.
Medical electrical equipment - Part 1: General
requirements for basic safety and essential
performance
Degree of water
and dust
penetration
Manufacturer-determined degree of particle
and water ingress protection.
Symbol for use In marking electrical appliances
Kun til innendørs
bruk
To identify electrical equipment designed
primarily for indoor use.
Symbols for use in the labelling of electrical
devices.
Risk class 2
To identify electrical equipment designed
primarily for indoor use
The requirements for accreditation and market
surveillance relating to the marketing of products;
Medical Device Directive
CE marking
Signifies European technical conformity.
Symbol for use in the labelling of electrical
devices.
Do not throw in
general waste
Highlights that you should not place the
electrical item in the general waste (it should
be taken to a local recycling centre)
Symbol from the certified body that performed
tests
Certification mark
Certification mark that signifies that this
product is certified to meet requirements of
US and Canadian electrical safety standards.
Safety sign to prohibit sitting on a surface.
No sitting on
surface
To identify surfaces/ parts that are unsuitable
to sit on.
Safety sign to prohibit stepping onto a surface.
No stepping on
surface
To identify surfaces/ parts that are unsuitable
to step on.

18
Warranty
Manufacturer of KRABAT products, Hepro AS avd KRABAT - hereinafter referred to as KRABAT - which
has its place of business in Ravnsborgveien 56, 1395 Hvalstad, Asker, Norway - gives the buyer of a
KRABAT - product the following product guarantee, hereinafter referred to as «WARRANTY»:
1. This WARRANTY is given under the strict condition that the buyer and any person who buys
gives access to the KRABAT product complies with the following SAFETY PRECAUTIONS:
I. Always read and understand the accompanying operating instructions for the product
before using the product.
II. The KRABAT product is only intended to be used for its intended purpose in
accordance with the KRABAT instructions for use for the relevant KRABAT product.
III. Children or other users of KRABAT product must always be supervised by adults.
IV. Make sure that the hip belt (seat belts) are properly fastened and work properly.
Periodically check that the hip belt is securely fastened to the KRABAT product.
V. Always use KRABAT products in consultation with a local physiotherapist or
occupational therapist.
VI. The KRABAT product is not a toy. Do not allow children or others to play with the
KRABAT product as it may cause injury to persons and / or product
VII. When the KRABAT product is not in use, store it so that it can not be misused or cause
harm to others, to the KRABAT product and its functions.
2. Subject to compliance with the terms of the WARRANTY, KRABAT warrants that the KRABAT
product for a period of one (1) year (the warranty period) from the time of purchase of the
KRABAT product, that the KRABAT product shall function in accordance with the intended
purpose as stated in the KRABAT instructions for use after purchasing the KRABAT product.
3. Should any damage or defect occur in the product during the said warranty period, KRABAT
will offer assistance within a reasonable time. The defect is corrected by either KRABAT or a
third party approved by KRABAT either by taking the product for inspection / repair or
forwarding spare parts for replacement provided that the buyer of KRABAT product without
undue delay after becoming aware of defects, has notified KRABAT in writing or a
representative authorized by KRABAT about defects / deficiencies that are discovered.
KRABAT reserves the right, at its discretion, to forward a new product instead of carrying out
repair work if the product has defects / errors. When forwarding spare parts, parts that need
to be replaced or a new product (unit?). When sending spare parts, parts to be replaced or a
new product, KRABAT or authorized representatives are considered to have fulfilled their
obligations when the relevant parts or product have been made available for collection at
the place where the original KRABAT product was sold.

19
4. In the event that a defect is not remedied,
I. Buyer is entitled to a reduction of the purchase price in relation to the reduced value of the
KRABAT product, provided that the reduction of the purchase price, under no circumstances,
exceeds fifteen (15%) percent of the purchase price for said KRABAT product, or
II. Where the defect is so significant that it deprives the buyer of a significant advantage of the
purpose of the purchase, the buyer may cancel the purchase on the basis of the defective
KRABAT product. If the buyer has suffered a loss, the buyer may be entitled to a refund of a
maximum of fifteen (15%) of the purchase price for the said KRABAT product.
5. THIS WARRANTY MAKES NO WARRANTIES OTHER THAN THE WARRANTIES GIVEN UNDER THIS
WARRANTY.
6. For the avoidance of doubt. This WARRANTY does not cover any liability by KRABAT or KRABAT's
authorized representatives for indirect losses or consequential damages incurred by the buyer or
person who gave access to the product by the buyer, knowingly or unknowingly.
7. This WARRANTY does not apply when the KRABAT product is supplemented with or has been
supplied with parts that have not been produced by KRABAT or parts produced or delivered by others
where the use is not authorized in writing by KRABAT.
8. KRABAT is only responsible for errors that occur under operating or operating conditions that are
stipulated in the operating instructions for the relevant KRABAT product.
9. KRABAT shall not be held liable for defects caused by incorrect maintenance, incorrect adjustments
or repairs performed by anyone other than KRABAT or a representative authorized by KRABAT or for
changes to the KRABAT product that have been made without the written consent of KRABAT.
10. This WARRANTY does not cover normal wear and tear
11. KRABAT is under no circumstances responsible for defects or damage to parts of the KRABAT
product for more than two (2) years after delivery.
12. Except as provided in this WARRANTY, KRABAT, as well as KRABAT's authorized representatives,
shall not be held liable for defects in any KRABAT product. This applies to any loss including production
loss, loss of profit or other indirect loss.
Hepro AS, avd. Krabat
Ravnsborgveien 56
1395 Hvalstad
Norway
www.krabat.no