Identifying And Repairing Faults - Invacare Alu Lite Manual Del Usuario

9.2 Identifying and repairing faults

Fault
The wheelchair does not
travel in a straight line
The brakes are gripping
poorly or asymmetrically
Rolling resistance is very
high
The castors wobble when
moving fast
The castor is stiff or stuck
1648363-B
Possible cause
Castor bearings are dirty or damaged
Brake setting incorrect
Rear wheels not parallel
Too little tension in castor bearing block
Castor has worn smooth
Bearings are dirty or faulty
Action
Clean the bearings or replace the castor,
→ qualified technician
Correct the brake setting, → qualified technician
Ensure the rear wheels are parallel,
→ qualified technician
Tighten the nut on the bearing block axle slightly,
→ qualified technician
Change castor, → qualified technician
Clean the bearings or replace the castor,
→ qualified technician
Troubleshooting
33