Service work
490E75=0_C
Ottobock | 71
4.11 Changing tyres
CAUTION
Improper tyre replacement
Injuries to the user due to incorrect installation, product damage
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No person is permitted to sit in the wheelchair during tyre replacement.
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Before removing a wheel, support the product so it cannot tip over.
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Always replace the tyres in pairs. Two differently worn tyres affect the directional stability of the wheelchair.
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Prerequisites:
Optional: Move the seat to the lowest seat height (see Page 15).
Switch off the control unit and deactivate the main fuse (see Page 15).
If necessary: Remove the legrests.
Jack up the wheelchair (see Page 14).
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Tools: Allen wrench size 5, 6; torque wrench with Allen insert size 5, 6; Optional: Plastic tyre mounting levers;
inner tube repair kit
Removing the tyres
1) Remove the wheel (see Page 45/Page 57).
2) Optional for pneumatic tyres: Let all the air out of the tyre.
3) Loosen and remove the 5 screws on the inside of the rim (see Fig. 143/144/145).
4) Separate the 2 pieces of the rim (see Fig. 146).
5) Remove the tyre from the rim and replace if necessary.
6) Optional for pneumatic tyres: Pull the inner tube out of the casing and repair or replace if necessary.
Installing the tyres
1) Optional for pneumatic tyres:Iv<O@OC@DII@MOP=@NGDBCOGT<I?DIN@MODODIOJOC@><NDIB{
2) Pull the tyre onto the rim. Optional for pneumatic tyres: Insert the valve of the inner tube into the notch in the
rim (see Fig. 143, item 1).
3) Join the 2 pieces of the rim. Precisely align the notches for the valve one on top of the other (see Fig. 143, item 1).
4) IN@MOOC@ÂN>M@RNJIOC@DIND?@JAOC@MDH<I?uMHGTODBCO@IOC@HDI<>MJNNRDN@N@LP@I>@N@@DB{¾ÁÀ¾ÁÁ/145).
5) Attach the wheel (see Page 45//Page 57).
143
144
145
146
Summary of Contents for 490E75 Series
Page 1: ...490E75 0_C Service manual...
Page 38: ...Service work 490E75 0_C 38 Ottobock 57 58 59 60 61 62 63...
Page 41: ...Service work 490E75 0_C Ottobock 41 70 71 72 73 74 tt 75 76...
Page 55: ...Service work 490E75 0_C Ottobock 55 103 104 105 106 107 108 109 110...
Page 108: ...Service work 490E75 0_C 108 Ottobock 227 228 229 t 230 231 232...
Page 112: ...Service work 490E75 0_C 112 Ottobock 237 238 239 240 241...
Page 143: ...R Net wheelchair control 490E75 0_C Ottobock 143 Seat module pin assignment 287...
Page 161: ...490E75 0_C Ottobock 161...
Page 162: ...490E75 0_C 162 Ottobock...
