info@solidworks.com
info@solidworks.com
Model:
NettI S
Language:
English
Version:
2020-08
My-Netti.com
17
6.7 BACKREST
• Unfold and lift the backrest up and fit the
gas strut into the back lock bracket.
• Secure the backrest by locking the back
lock and tighten the star wheel.
6.8 SEAT DEPTH - BALANCING
THE WHEELCHAIR
The seat depth can be adjusted both in the
front and the rear. The goal is to give the user
an ergonomic
seating position
with lumbar
support and
the knee joint
aligned with
the knee pivot
joint of the leg
supports.
By adjusting the seat depth the balance of
the wheelchair is affected and thereby also
the driving characteristics.
A well balanced chair is easy to drive
without the tendency to tip backwards.
As a basic rule, start with adjusting the seat
depth backwards. After this is done the leg
support extension brackets can be pulled
out to align the leg support pivot knee-joint
with the user knee joint.
If required, move the main wheels to get
good balance in the wheelchair see 6.6..
Finding correct seat depth:
• Remove the leg support and head
support.
• Adjust the seat to a horizontal position.
• Open the backrest angle slightly to make
it easier for the user to get the bottom
well into the chair.
• Adjust the backrest cushion height to
give the user good lumbar support.
• Correct seat depth depends on the
user’s thigh length and is measured
while seating.
When the seat depth is correct, there
should be approximately 20-30 mm
distance between the edge of the
cushion and the hollow of the knee.
6.9 ADJUSTING THE SEAT
DEPTH AT THE REAR
• The seat depth can be adjusted in several
intervals (250 - 275 - 300 - 325 - 350 mm)
without change of parts, by moving
the back hinge and pulling the seat plate
backwards. .
• Small adjustments are done by adjusting
the straps on the Velcro backrest.
Seat depth adjustment is done as follows
• Open the backrest lock and fold the
backrest forward in the chair
• Remove the screws for adjusting the seat
depth on both sides and move the back-
rest hinge to the required seat depth.
See picture on next page
The backrest hinge must be in the
same positions on both sides.
