Replacing The Caster Wheel Bearing Set - Otto Bock 490E75 Series Service Manual

Service work
4.10.5

Replacing the caster wheel bearing set

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).
Removing the caster wheel bearing set
1) Remove the caster wheel (see Page 57).
2) Remove the caster fork with splash guard (optional) (see Page 59).
3) INFORMATION: Note the installed position of the bearings and bearing sleeve within the caster wheel
swing arm.
Pull the bearing set (2 ball bearings and 1 bearing sleeve) out of the caster wheel swing arm (see Fig. 125,
item 1).
in order to remove the lower ball bearing.
Installing the caster wheel bearing set
1) Press the bearing set (1 bearing sleeve and 2 ball bearings) into the caster wheel swing arm according to the
original installed position (see Fig. 125, item 1).
2) Install the caster fork with splash guard (optional) (see Page 59).
3) Attach the caster wheel (see Page 57).
in order to insert the lower ball bearing.
125
60 | Ottobock 490E75=0_C