Adjusting The Centre Of Gravity (Standard Seat With Module For Combination Of Seat Height Adjustment And Seat Tilt) - Otto Bock 490E75 Series Service Manual

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Service work
160
Permissible combinations of front and rear seat height adapter positions
Marking
front A
rear
A
B
C
D
E
F
G
H
* Combination is not permissible
Specifications in degrees correspond to the pre-tilt of a permissible combination.
4.13.5
Adjusting the centre of gravity (standard seat with module for combination of seat height ad-
justment and seat tilt)
WARNING
Shifting the centre of gravity
Severe injuries due to the power wheelchair tipping over and falling
Only choose positions that are permissible for the new configuration. Contact Ottobock Customer Service for
more information. Have the serial number of the power wheelchair ready. It is used to determine the permissi-
ble positions.
Prior to initial use, test how changes in the centre of gravity affect the behaviour of the power wheelchair on
inclines, slopes, side hills or when crossing obstacles with the secure support of an attendant.
CAUTION
Failure to observe installation instructions
Pinching, crushing due to falling parts
The seat and its individual parts have a substantial weight. Secure the parts against falling before loosening
them.
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.
Tools: Allen wrench size 5, 6; open-ended wrench size 13; torque wrench with Allen insert size 5, 6
78 | Ottobock
B
C
-3°
*
-3°
*
*
-3°
*
*
*
*
*
*
*
*
161
D
E
*
-3°
*
*
-3°
*
*
*
*
F
G
*
*
*
*
*
*
*
-3°
*
*
-3°
H
*
*
*
*
490E75=0_C

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