Permobil M1 Service Manual page 132

Adjustments
2. Make sure the ISOFLO Memory Control is also open by pushing
the green ISOFLO knob to the right (A) or unlocked.
3. Slide the pump's rubber nozzle over the air valve and inflate the
cushion until it begins to arch upward slightly.
Note that the air will travel to the closest quadrant first and then pass
through the ISOFLO to inflate the other quadrants. This is why the
first quadrant looks overinflated when you start the inflation process.
4. Pinch the pump nozzle and turn the valve clockwise to close.
5. Remove the pump.
6. Have the user sit in the chair centered on the cushion.
Slide your hand between the cushion surface and the user's buttocks.
7. Lift the user's legs slightly and feel for the lowest bony prominence.
8. Lower the user's leg to a sitting position.
9. Turn the air valve counterclockwise to let out air while keeping
your hand underneath the user's lowest bony prominence.
10. Slowly release the air until you can only just move your fingertips.
11. Turn the air valve clockwise to close.
The air will be released first from the quadrant that contains the air
valve. Because the air must travel through the ISOFLO Memory
Control, do this in increments. Close the valve and give the air time
to equalize to avoid letting too much air out of the cushion.
12. Position the user on the cushion in their desired posture and have
the user maintain this position while air passes through the ISOFLO
Memory Control.
132
Figure 389. Memory control.
Figure 390. Close valve.
Figure 391. Check pressure.
Figure 392. Open valve.
Permobil M1