Invacare Action 3 Junior, User Manual

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Troubleshooting
9.2 Identifying and repairing faults
Fault Possible cause Action
Incorrect tyre pressure on one rear wheel Correct tyre pressure, 11.2 Tyres, page 60 The wheelchair does not
travel in a straight line
One or more spokes broken Replace faulty spoke(s), → qualified technician
Spokes tightened unevenly Tighten loose spokes, → qualified technician
Castor bearings are dirty or damaged Clean the bearings or replace the castor,
→ qualified technician
Rear wheels are mounted too far forwards Mount the rear wheels further back,
→ qualified technician The wheelchair tips backwards
too easily
Back angle too large Reduce the backrest angle, → qualified technician
Seat angle too large Mount the castor upper on the front fork,
→ qualified technician
Select a smaller front fork, → qualified technician
Incorrect tyre pressure in one or both rear tyres
Correct tyre pressure, 11.2 Tyres, page 60
The brakes are gripping poorly
or asymmetrically
Brake setting incorrect Correct the brake setting, → qualified technician
Tyre pressure in rear tyres is too low
Correct tyre pressure, 11.2 Tyres, page 60
Rolling resistance is very high
Rear wheels not parallel Ensure the rear wheels are parallel,
→ qualified technician
Too little tension in castor bearing block Tighten the nut on the bearing block axle slightly,
→ qualified technician The castors wobble when
moving fast
Castor has worn smooth Change castor, → qualified technician
The castor is stiff or stuck Bearings are dirty or faulty Clean the bearings or replace the castor,
→ qualified technician
The wheelchair is very difficult
to unfold Backrest cover is too tight Loosen the Velcro bands of the backrest cover a little,
3.5.1 Backrest cover, page 14
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