Permobil M400 Corpus HD Service Manual page 78

M400 Corpus HD
1. Rubber cushion
2. Locking nut
3. Optional spacer (+1 in)
The following tools are necessary for this task:
• Allen key 5 mm
If desired, the lowest position can be adjusted +1 in or +2 in by adding
spacers. A maximum of two spacers on each rubber cushion are allowed
(+2 in). Always make sure that equal amount of spacers on all four
rubber cushions are fitted.
1. Raise the seat to the highest position. If the wheelchair is equipped
with a fixed seat post or if the seat lift does not work normally
because the batteries are discharged or the adjustment device is
defective, the seat can be raised/lowered manually. See
4.1.1.1 Manually operating the seat lift , Page 17.
2. Release the locking nuts on all four support points by turning the
nuts clockwise.
3. To add or remove spacers, remove the rubber cushions and locking
nuts by turning them counter clockwise.
4. Add or remove equal amount of spacers on all four support points
and then remount the locking nuts and rubber cushions.
5. Lock the position of the rubber cushion by turning the locking nut
counter clockwise.
6. Lower the seat lift. Verify how the height of the seat supports four
rubber cushions correspond with the height of the seat when the
seat lift has reached its lowest position. At the correct height the
rubber cushions should be compressed approximately 0.08 in. as the
seat lift reaches its lowest position. If needed, perform the
adjustment according to 5.1.1.4 Adjusting the seat support , Page 79.
78
Adjustments - Seat
Figure 122. Verify the height of the rubber cushions