Permobil Chairman HD3, Owner'S Manual, Page: 43 / 52

Owner’s Manual Chairman HD3 Maintenance and Repairs
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Changing inner tubes
1. Block up the wheelchair and let out the air.
2. Pull the tire off the wheel rim.
3. Change the punctured inner tube.
4. Replace the tire on the wheel rim and fill with air.
Low air pressure in the tyres produces abnormal wear and reduces the range.
Therefore, check regularly that the front tires have a pressure of 29 psi.
1. Unscrew and remove the plastic caps on the air valves on the drive wheels.
2. Connect the compressed air nozzle to the air valve and adjust the tire
pressure to the prescribed level.
The recommended air pressure is 29 psi. Overfilling entails the risk of
explosion.
Fig. 59. Filling valve
Filling with air