9.2 Identifying and Repairing Faults
Fault
Possible cause
Action
Incorrect tyre pressure on one rear wheel
Correct tyre pressure, →
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, →
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, →
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 hook and loop strips of the backrest
cover a little,
→
3.7 Adjusting the Shape — Tension Adjustable
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Содержание Rea Focus 150
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