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Otto Bock Blizzard, Service Manual

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4.7. - Rear Wheels

4.7.1. Horizontal Setting of the Rear Wheel Position

First remove the rear wheels. On both sides, loosen the screws on the outside of rear wheel 

adapter until you can move the adapter on the profiled seat tube (Fig. 4). Slide the rear 

wheel adapters into the desired position. Use a folding ruler to measure the distance up to 

the rear end of the seat tubes to ensure parallel setting (Fig. 4). Retighten the screws.

4.7.2. Replacing the Rear Wheel Adapters

First disassemble the rear support brackets for the back as described in section 4.4.. 

Next, loosen on both sides the screws on the outside of rear wheel adapter until you can 

move the adapter on the profiled seat tube (Fig. 4).

Pull the rear wheel adapters to the rear off the seat tube. For assembly, please proceed in 

reverse order.

Figure 4 

Figure 4

647G429_Blizzard_Inhalt GB.indd   23

05.04.2007   12:36:00 Uhr

Summary of Contents for Blizzard

Page 1: ...Blizzard Service Manual ...

Page 2: ......

Page 3: ...ols and Maintenance Plan 5 3 1 Required Tools 5 3 2 Maintenance Plan 7 4 Settings Replacement Retrofit 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 Dat...

Page 4: ...ribed 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 provid...

Page 5: ...ary 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 or...

Page 6: ...t 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 ...

Page 7: ...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 m...

Page 8: ... Workbench as well as a vise with plastic jaws and rubber insert Hand drill Tire mounting levers inner tube repair kit ...

Page 9: ...de 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 ...

Page 10: ...w 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 attac...

Page 11: ...he spring mounted buttons inwards and slide the transport wheels into the desired position Fig 6 They will automatically engage when reaching a free locking position 4 1 3 Retrofit Replacement Setting of the Tip Assist First proceed as described in section 4 1 1 Remove the rear wheels and the U shaped profile from the rear wheel adapter Slide the pre assembled tip assist onto the rear wheel axle w...

Page 12: ...exagonal attachment of the crutch holder is located on the hexagon of the axle Fig 8 Fix the crutch holder using the clamping screw Reinstall the rear wheel attachment and attach the wheels by repeating the steps described above in the reverse sequence Attach the hook and loop strap for guidance of the crutches to the back tube To replace the bucket loosen the screw connection on the bottom and re...

Page 13: ...4 1 5 Retrofit of the Frame Pads Wrap the frame pads around the front frame tubes as in the picture and close the hook and loop closure Fig 10 Use a mild household cleaner to clean the frame pads Figure 10 ...

Page 14: ... are too long or too short the footrest must be replaced To do this loosen the four screws until the foot rest can be removed completely Fig 12 Replace it with a new footrest of the correspond ing size For assembly please proceed as described above 4 2 2 Replacing the Footplate Completely loosen the two screws in the middle of the footplate and remove the footplate Fig 13 If you want to continue u...

Page 15: ...ntil it has the desired angle and retighten the screws on the outside of the footrest 4 2 4 Replacement Retrofit of the Lateral Heel Blocks on the Footplate If already present loosen the screws on the lateral brim of the footplate Fig 17 Remove the lateral heel block and replace it with a new one or attach the new lateral heel block beneath the footplate Fix it at the desired angle using the exist...

Page 16: ...y either reuse the upholstery bars or use new ones If required slide the upholstery bars into the flaps of the new seat upholstery Then slide into the guides in the seat tube and evenly pull the upholstery up to the front Close the hook and loop connections of the tension adjustable upholstery and fold the backrest back into upright position 4 3 2 Replacing the Stabilizer Remove the rear wheels Lo...

Page 17: ...anism from the support brackets and insert it into new support brackets For assembly please proceed in reverse order 4 4 2 Replacing the Spring for the Back Release First proceed as described in section 4 4 1 until you have the rear support brackets in your hands Loosen the key ring from the bolt and remove the spring from the support bracket Fig 23 Insert a new spring and attach it using the key ...

Page 18: ... 4 4 Pre setting of the Back Angle First remove the rear wheels On both sides open the screws of the side panel guide Fig 27 and remove them Slide the side panel downwards out of the way The back angle preset is now freely accessible On both side remove the screws for the pre setting Fig 28 and move the back into the de sired position Once you have found the desired position tighten the screws Rea...

Page 19: ... Replacing the Back Upholstery First proceed as described in section 4 4 5 until you have removed the push handles Loosen all hook and loop straps of the worn back upholstery Then pull all strap loops which are above the back stabilizer upwards off the back tubes Fig 30 Unlock the backrest and move it into a 45 angle Fig 31 Remove the key rings from the back release as described in section 4 4 3 N...

Page 20: ... 27 move the attach ments vertically on the back tube to the desired height and retighten the screws Once you have achieved the desired position you can still make fine corrections using the eccentric wheels before also tightening these screws 4 5 2 Replacing the Eccentric Wheels Standard Side Panel and Clothing Protector Remove the screws on the eccentric wheel Fig 32 and completely remove them T...

Page 21: ... 4 Retrofit Replacment and Setting of the Height Adjustable Side Panels First loosen the two screws of the side panel receiver and completely remove them Now place the receiver in the desired position on the rear wheel attachment device and fix it Fig 34a Insert the slide of the side panel into the receiver and fix it in the desired height using the screw provided Fig 34b To change the height shif...

Page 22: ... support bracket of the backrest Proceed as described in section 4 4 1 and replace the support bracket with the receiver for the armrest Fig 35 Insert the armrest into the receiver By shifting the stop in the receiver the armrests can be set to one of three height positions Fig 36 Figure 35 Figure 36 ...

Page 23: ...he caster wheel journal angle Fig 38 Subsequently retighten the counter nut 4 6 2 Replacing the Casters Loosen the screw connection of the casters Fig 39 and remove them from the forks When changing the caster size be sure to use the correct spacers for the respective caster size in the fork in case of spare parts orders they will be included in the delivery Mount new casters Use new screws or app...

Page 24: ...s with quick release axle Press the release button of the quick release axle on the inside of the caster fork Pull the quick release axle with the fork downwards out of the caster wheel journal Loosen the screw connection of the axle and remove the axle from the caster fork For as sembly please proceed in reverse order 4 6 4 Replacing the Eccentric Wheel Completely loosen the counter nut on the un...

Page 25: ...er to measure the distance up to the rear end of the seat tubes to ensure parallel setting Fig 43 Retighten the screws 4 7 2 Replacing the Rear Wheel Adapters First disassemble the rear support brackets for the back as described in section 4 4 1 Next loosen on both sides the screws on the outside of rear wheel adapter until you can move the adapter on the profiled seat tube Fig 42 Pull the rear wh...

Page 26: ... your hands Reposition the axle over the adjustment hole channel on the rear wheel adapter at the desired location Fig 45 Fine adjustment of the axle is described in section 4 7 6 For assembly please proceed in reverse order 4 7 4 Mounting a Wheelbase Extension First remove the rear wheels Fully loosen the two screws on the front of the rear wheel attachment and remove them Now pull the U shaped s...

Page 27: ...e the axle with a new one with alternative wheel camber Fine adjustment of the axle is described in section 4 7 6 For assembly please proceed in reverse order 4 7 6 Fine Adjustment of the Rear Wheel Axle after Position Change Tracking Set ting Place the Blizzard on an even level surface If not yet done loosen the screws of the rear wheel attachment until you can turn the axle by hand Fig 47 Place ...

Page 28: ... then remove the inner tube and inspect the rim band as well as the inner rim surface for damages Replace the inner tube and or casing with new ones or repair the inner tube according to the directions in the repair kit Insert the inner tube into the rim starting with the valve Pump the tube with a small amount of air until it assumes its round shape and then insert it into the rim Fig 50 Put the ...

Page 29: ...ent Retrofit of a Spoke Protector Spoke protectors can be mounted to rear wheels with hollow rim The spoke protectors are mounted with snap fasteners attachment nipples Remove the rear wheels and press out if present the attachment nipples of the worn spoke protector from inside using a hammer handle for example Fig 53 Remove the spoke protector and replace it with a new one Position the spoke pro...

Page 30: ...lock so that it firmly blocks the rear wheel when it is locked Fig 56 Afterwards firmly retighten the screw 4 8 2 Replacing the Wheel Lock Fully loosen the screw on the wheel lock holding device and remove the screw Fig 55 Remove the worn wheel lock and replace it with a new one which will be delivered pre as sembled Attach the new wheel lock to the wheel lock holding device and fix it with a new ...

Page 31: ...cturer Open the superglue sachet Observe the instructions given by the manufacturer of the glue Using a spatula apply the glue into the handle cover all around and as deeply as possible Fig 58 Fully slide the handle cover onto the wheel lock lever Now wait so as to allow full curing of the glue 4 8 4 Replacing the Brake Block of the Wheel Lock Loosen and remove the screw from the brake block Remov...

Page 32: ...Wheel Lock If the Performance wheel lock gets stuck during the return function lubrication of the guide will normally be sufficient if not the wheel lock must be replaced refer to section 4 8 2 Use a light oil such as sewing machine oil and apply it into the body of the Performance wheel lock by spraying or drizzling Fig 61 Check for easy function by opening and clos ing the wheel lock Repeat the ...

Page 33: ...ble on the wheel lock body and completely remove the screw Fig 62 Remove the wheel lock lever extension and replace it with a new one Attach the eyelet of the new brake cable to the bore hole of the wheel lock body and tighten the screw Plug the wheel lock lever extension onto the wheel lock lever Figure 62 ...

Page 34: ... 5 72 5 42 75 95 77 5 97 5 80 85 87 72 89 5 74 5 44 75 97 79 5 99 5 82 85 89 74 91 5 76 5 46 75 99 81 5 101 5 84 85 91 76 93 5 78 5 48 75 101 83 5 103 5 86 85 93 78 95 5 80 5 1 Specified at 0 seat angle Overall width in cm 1 Seat width Camber 0 3 6 9 32 46 51 5 57 5 63 34 48 53 5 59 5 65 36 50 55 5 61 5 67 38 52 57 5 63 5 69 40 54 59 5 65 5 71 42 56 61 5 67 5 73 44 58 63 5 69 5 75 46 60 65 5 71 5 ...

Page 35: ...eight in cm 1 Position Caster diameter 3 4 5 140 mm 6 Short caster fork Position 4 2 2 44 2 2 Position 3 2 44 3 45 3 46 3 46 8 Position 2 44 1 45 5 46 5 47 5 48 Position 1 45 4 46 8 47 8 48 8 49 3 Long caster fork Position 4 2 2 47 8 48 8 49 3 Position 3 2 48 49 50 50 5 Position 2 47 9 49 3 50 3 51 3 51 8 Position 1 49 1 50 5 51 5 52 5 53 1 Specified at 0 seat angle without seat cushion 2 Combinat...

Page 36: ...wheel attachment medium Rear wheel attachment short 1 38 3 40 8 2 39 5 42 3 40 6 43 1 4 41 8 44 3 5 42 9 45 4 6 44 1 46 6 7 45 2 47 7 8 46 4 48 9 9 47 5 50 10 48 7 51 2 11 49 8 52 3 12 51 53 5 13 52 1 54 6 1 Specified at 0 seat angle and 0 camber without seat cushion ...

Page 37: ...35 4 3 2 1 1 2 3 4 5 6 7 8 9 10 11 12 13 Caster positions Rear wheel adadapter ...

Page 38: ...36 ...

Page 39: ......

Page 40: ...848 1304 1562 1590 1594 3663 Fax 49 5527 848 1676 e mail reha ottobock de Internet http www ottobock com Versandanschrift für Rücksendungen Address for Returns Otto Bock HealthCare GmbH Lindenstraße 13 07426 Königsee Germany Otto Bock HealthCare GmbH has been certified by the German Society for the Certification of Quality Assurance Systems DQS in accordance with DIN EN ISO 9001 standard reg no 77...

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