Otto Bock Blizzard Bedienungsanleitung
Blizzard
Service Manual
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Service Manual for the Blizzard Wheelchair for Active Use
Table of Contents Page
1 Introduction ................................................................................................................... 2
1.1 Preface................................................................................................................. 2
1.2 Technical Support................................................................................................ 2
1.3 Symbol Legend .................................................................................................... 3
2 General Safety Instructions ..........................................................................................3
3 Required Tools and Maintenance Plan.......................................................................... 5
3.1 Required Tools ..................................................................................................... 5
3.2 Maintenance Plan ................................................................................................ 7
4 Settings/Replacement/Retrot................................................................................. 8
4.1 Component Group A: Frame ............................................................................... 8
4.2 Component Group B: Footrest .......................................................................... 12
4.3 Component Group C: Seat ................................................................................ 14
4.4 Component Group D: Back / Push Handles ..................................................... 15
4.5 Component Group E: Side Panels..................................................................... 18
4.6 Component Group F: Casters............................................................................ 21
4.7 Component Group G: Rear Wheels ................................................................... 23
4.8 Component Group H: Wheel Lock..................................................................... 28
5 Technical Data............................................................................................................. 32
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1 Introduction
1.1. Preface
Regular maintenance is important. It increases safety and prolongs the service life of the prod-
uct.
All Mobility products should be inspected and serviced once a year.
However, if the product is used frequently, or if it is used by growing children or patients with
changing clinical conditions, we recommend readjusting and servicing the product every 6
months.
Use only original spare parts for all service and maintenance.
The service and maintenance described in this manual should be performed by trained spe-
cialists only and not by the user.
This service and maintenance manual refers to the spare parts catalogs and instructions for
use manuals for the products described. For this reason, it is important to use these docu-
ments together.
Use the maintenance plan (check list) as a template for making copies. Retain completed main-
tenance plans and provide the customer with a copy.
Instructions for use Spare parts catalog
Blizzard 647G422=D/GB
1.2. Technical Support
The Otto Bock Team of your country will be pleased to answer your technical questions. Con-
tact addresses and telephone numbers are listed on the last page of this manual.
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1.3. Symbol Legend
Caution!
Warning of damages to persons.
Attention!
Warning of product damages.
Note!
Useful tips for the technician.
Read!
Please read the Instructions for Use first!
2 General Safety Instructions
Observe the following guidelines for maintenance or repair work:
Caution!
Use appropriate tools (refer to pages 5 & 6).
Caution!
Wear appropriate clothing, including gloves and safety glasses, if necessary.
Attention!
Secure the product to prevent it from tipping over or falling off the workbench.
Read!
Read the service and maintenance instructions before starting.
Read!
Familiarize yourself with the functions of the product. If you are not familiar with the prod-
uct, read the instructions for use manual before inspecting the product.
Attention!
If you do not have an instructions for use manual, you can order one from the manufacturer
(see the overview of all Otto Bock Branches "Otto Bock Worldwide").
Attention!
Alternatively, you can download documents from our home page at www.ottobock.de
or www.ottobock.com.
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Attention!
Clean or disinfect the product before starting inspection. See the instructions for use manual
for care instructions or specific product inspection information.
Attention!
Many of the screw fastenings use thread lock or nylock nuts. If you have to undo such
screw fastenings, replace the nut or screw with a new nut/screw with thread lock. If new
screws or nuts with thread lock are not available, use a medium-strength liquid thread lock
substance (such as Loctite 241 or Euro Lock A24.20).
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3 Required Tools and Maintenance Plan
3.1. Required Tools
The following list shows you the tools and auxiliaries required for the service.
Reversible ratchet handle wrench
and sockets, sizes 8 mm - 24 mm
Torque wrench,
measurement range 5 Nm to 50 Nm
Wrenches, sizes 8 mm - 24 mm*
Allen wrenches, sizes 3 mm - 6 mm* Phillips head screwdriver, size 2
Screwdrivers,
blade widths 2.5, 3.5, and 5.5 mm
Hammer, approx. 300 g
Plastic hammer Stanley knife with sickle hooked
blade and standard blade
* Contained in 481C08=ST010 Tool Set
Liquid thread lock "medium strength"Side cutting pliers Pop rivet gun for rivets up to ø 5 mm
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Workbench as well as a vise with
plastic jaws and rubber insert
Hand drill Tire mounting levers*,
inner tube repair kit*
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Maintenance Plan
for regular service
Blizzard
- Wheelchair for active use -
Customer:
Item Component (group) Inspection (check list)
Serial no.: 1.) Function / setting
(refer to 647G422 Instructions for Use)
2.)
Damages /
deformations
3.)
Screw connections
A Frame - Frame x x
Frame Accessories - Anti-tipper
- Transport wheels
- Crutch holder
- Tip-assist
- Frame pads
x
x
x
x
x
x
x
x
x
B Footrest - Flip-up mechanism
- Lower leg length setting
- Angle adjustment
x
x
x
x
x
x
C Seat - Seat upholstery
- Seat cushion
x
x
D Back / Push Handle - Back upholstery
- Back tubes
- Folding mechanism
- Push handles
x
x
x
x
x
x
x
E Side Panel - Height setting
- Slide-down mechanism
- Removability
x
x
x
x
x
x
F Caster - Tires (wear)
- Air pressure
- Caster journal angle
- Screw connection of the caster
journal bearing
- Running behavior of the wheels
- Threaded axles / quick-release
axles
- Swiveling of the wheel forks
x
x
x
x
x
x
x
x
x
x
x
G Rear Wheel - Tires (wear)
- Air pressure
- Running behavior of the wheels
- Spokes
- Push rings
- Quick-release axles
- Wheel camber
- Rear wheel attachment
x
x
x
x
x
x
x
x
x
x
x
x
x
Rear Wheel Accessories - Spoke protectors
- Wheelbase extension
x
x x
H Wheel Lock - Brake function
- Lever mechanism
x
x
x
x
Wheel Lock Accessories - Wheel lock lever extension x x
S Accessories - Lap belt x x
Do the settings of the wheel-
chair comply with the user's
requirements?
Maintenance performed by: on:
3.2. Maintenance Plan
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4 Settings / Replacement / Retrofit
4.1. - Frame
4.1.1.Retrot/ReplacementoftheAnti-tipper
First remove the rear wheels by pressing the button of the quick-release axle with your
thumb and pulling off the wheel (Fig. 1). Fully loosen the two screws on the front of the
rear wheel attachment (Fig. 2) and remove them. Now pull the U-shaped section off to the
rear.
Slide the pre-assembled anti-tipper onto the rear wheel axle, which is now freely acces-
sible, past the rear wheel adapter, until the (hexagonal) attachment of the anti-tipper is
located on the hexagon of the axle (Fig. 3).
Fix the anti-tipper using the clamping screw (Fig. 4) and test the swing-away and locking
function.
Reinstall the rear wheel attachment and attach the wheels by repeating the steps described
above in the reverse sequence.
Figure 1 Figure 2
Figure 3 Figure 4
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