progeo JOKER JUNIOR 2.0, Service Manual

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REHATEAM s.r.l.—vicolo Negrelli 5 — 31040 Castagnole di Paese TV - www.rehateamprogeo.com
Service Manual JOKER JUNIOR 2.0 7
SERVICE MANUAL
DIRECTIONALITY
A very important aspect of any wheelchair is its directionality.
To check if the wheelchair goes straight, sit on it, push it and let it go until it stops.
If something is wrong, the slower the wheelchairs moves forward (momentum close to nothing), the more likely it turns right or left. There-
fore, if no or irrelevant turn occurs, the wheelchair is properly adjusted.
Cause Reason Solution
SURFACE The surface where the test is being performed is not even
and flat Test the chair on even and flat surface
REAR WHEELS The rear wheel are not equally inflated Inflate both tyres at the same pressure
The tyres of the two rear wheel are different or differently
worn out Change the tyres
The rear wheels are not adjusted at the same height Adjust the rear wheel height
The camber of right and left wheels are different or differ-
ently adjusted
Adjust the camber.
The wheel, when turning, touches the side guard or the
brakes Fix or replace the side guard. Add spacer on the
receiver. Adjust the brake.
The wheels doe not turn smoothly
Clean or change the bearings
FRONT WHEELS The casters are not adjusted at the same height Adjust the front wheels at the same height
The tyres of the two front wheels are different or differently
worn out Change the wheels
The fixing bolts of the fork/fork support/clamp are loosened Check and tighten all fixing bolts
The caster does not turn smoothly Clean the bearings.
Either or both forks are not adjusted so as their axis is per-
pendicular to the ground.
Adjust the fork axis inclination.
FOOTPLATE The footplate tubes are adjusted at different height. Adjust the tubes at the same height
If the wheelchairs does not go straight, in most cases the reason
is the fork angle adjustment.
However, before working on the fork angle adjustment, check all
the points above mentioned.
First, make the test along a flat even surface to check the direc-
tionality.
1
The correct adjustment has both forks perpendicular to the
ground, that is, their axis at 90°.
2
If the wheelchair TURN RIGHT, the cause is one or more of
the following:
The
RIGHT fork is tilted inwardly and/or backward
The LEFT fork is tilted outwardly and/or f rontward
3
If the wheelchair TURN LEFTT, the cause is one or more of
the following:
The
LEFT fork is tilted inwardly and/or backward
The RIGHT fork is tilted outwardly and/or f rontward
90° 90° 90° 90°
1
2
3
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