Permobil C500, Service Manual

Page: 18 / 68

18
Shock absorbers
Shock absorbers
Removal
1. Switch off the main power switch on the control
panel.
2. Remove the front fender on the side in
question, see page 7.
3. Lift up and chock up the wheelchair chassis
so that the wheel in question is free of the
ground.
4. Loosen the shock absorbers front end. It is
fitted with a bolt, two washers and a nut, see fig.
5. Loosen the shock absorbers rear end. It is
fitted with a bolt, two washers and a nut, see fig.
Fitting
Fit the shock absorber in the reverse order. Adjust
the shock absorbers spring force before fitting,
see below.
Shock absorber
The shock absorber is fitted with a bolt,
two washers and a nut
The spring force
The spring force can be set to suit different user weights using the adjustment nut. Increase the
dimension for a harder suspension, decrease the dimension for a softer suspension, see fig.
Return damping valve
To get standard setting, screw the return damping valve fully clockwise by hand. Then screw the valve
fully counterclockwise, counting the ”clicks”. Then screw the valve halfway clockwise i.e. halve the
number of ”clicks”.
Screw the valve clockwise (open the valve) for softer damping, or counterclockwise (close the valve) to
have harder damping .
On early models of the chassis, DNM shock absorbers are fitted. Make sure using the right settings for the right shock absorber.
m
NOTE
adjusting
Before the new shock absorber is mounted, it must be adjusted to the proper value.