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4.10.7
Replacement tasks on the caster wheel / stabilising wheel swing arm
(mid-wheel drive MWD)
4.10.7.1 Replacing the suspension for the caster wheel swing arm
NOTICE
Incorrect dimensioning of the suspensions
Damage to the suspensions and the product
Only replace the suspensions with approved suspensions of the same type (see Page 72).
Prerequisites:
Optional: Move the seat to the lowest seat height (see Page 15).
Switch off the control device and deactivate the main fuse (see Page 15).
If necessary: remove the leg supports.
Jack up the wheelchair (see Page 14).
Tools: 2x Allen wrench size 5; Allen wrench size 6; torque wrench with Allen insert size 5, 6
Removing the suspension for the caster wheel swing arm
1) Remove the drive wheel (see Page 45).
2) Remove the drive wheel splash guard (see Page 51).
3) Loosen and remove the screw with sleeve nut and disc spring between the drive wheel swing arm and caster
wheel swing arm suspension (see Fig. 137, item 1).
4) Carefully and slowly guide the caster wheel swing arm and drive wheel swing arm downwards.
5) INFORMATION: Note the installed position of the 2 washers on the suspension.
Loosen and remove the screw with 2 washers between the suspension and caster wheel swing arm (see Fig. 138,
item 1).
6) Remove the suspension.
Installing the suspension for the caster wheel swing arm
1) Position the suspension with 2 washers according to the original installed position on the caster wheel swing
arm.
2)
item 1).
3) Carefully guide the caster wheel swing arm and drive wheel swing arm upwards.
4) Insert the screw with sleeve nut and disc spring between the drive wheel swing arm and caster wheel swing arm
5) Attach the drive wheel splash guard (see Page 51).
6) Attach the drive wheel (see Page 45).
7) Adjust the suspension of the caster wheel swing arms equally on both sides (see Page 72).
137
490E75=0_C
15 Nm (see Fig. 137, item 1).
138
Service work
25 Nm (see Fig. 138,
Ottobock | 67
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