Permobil Corpus 3G User manual

SERVICE MANUAL
Corpus 3G
Seat system for electric wheelchair
US

4
Contents
Contents
Introduction ............................................................................................................ 5
Technical support ............................................................................................... 5
Spare parts & accessories ................................................................................. 5
Disposal .............................................................................................................. 5
Warranty & servicing .......................................................................................... 5
Maintenance ....................................................................................................... 5
Product approval ................................................................................................ 5
Adjustment ............................................................................................................. 6
Adjusting the seat depth ................................................................................... 6
Adjusting the seat width .................................................................................. 10
Adjusting the backrest height .......................................................................... 11
Adjusting the armrest height ........................................................................... 12
Adjusting the armrest angle ............................................................................ 13
Adjusting the armrest width ............................................................................. 14
Adjusting the thigh support ............................................................................. 15
Adjusting the trunk support ............................................................................. 15
Repairs ................................................................................................................. 16
Replacing a UniTrack rail ................................................................................ 16
Replacing seat plates ...................................................................................... 17
Replacing backrest plates ............................................................................... 18
Replacing the armrest height adjustment mechanism ..................................... 20
Replacing the manual legrest adjustment unit ................................................. 24
Replacing the manual backrest adjustment unit .............................................. 25
Replacing the legrest actuator ........................................................................ 26
Replacing the backrest actuator ..................................................................... 27
Replacing the seat angle mechanism ............................................................. 28
Replacing the fixed seat mounting plate ......................................................... 32
Replacing the adapter plate ............................................................................ 36
Replacing a legrest .......................................................................................... 38
Replacing a legrest strap ................................................................................. 40
Replacing the legrest slide bushings ............................................................... 41
Replacing the footplate ................................................................................... 42
Recommended cushions, seat plates and UniTrack rails ............................... 43
Cabling overview ................................................................................................. 44
Index ..................................................................................................................... 46

55

Adjustment
Adjusting the seat depth
The seat depth can be adjusted to suit different
users. There are nine fixed levels, each 25 mm apart.
Adjustment of the seat depth is performed by
mounting the front section of the Seat frame incl.
Leg rest and the rear section of the seat frame
incl. Back rest into desired positions according
to the table on 7 and 8. When the seat depth is
adjusted it may be necessary to replace cushions,
seat plates and UniTrack rails for ones of the
appropriate length. The mounting position for the
seat on the seat lift/fixed seat column may also
need adjusting. See 37.
1. Remove the seat cushion by lifting it straight
up. It is attached by means of Velcro on the
rear of the cushion.
2. Remove the seat plates, which are held in
place by two screws at the back edge and
two quick-mount clamps at the front. See the
illustration. First remove the screws, then use
your hand to carefully push the seat plate
from below to release the quick-mount clamps
at the front.
3. Remove the UniTrack rails which are each held
in place by two screws. See the illustration.
6
The UniTrack rails are fixed in place
with two screws each.
The seat plates are held in place by two
screws at the back edge and two quick-mount
clamps at the front.
For this task the following tools are necessary:
1 Allen key 5 mm
Adjustment Adjusting the seat depth

77
Adjustment Adjusting the seat depth
The position of the front part of the Seat frame (Leg rest position) is fixed by five
screws marked with the letter L.
Adjustment of the front section of the Seat frame (Leg rest position)
4. Remove the five screws marked (L) securing the Seat frames front section, see fig below.
5. Adjust the seat depth by moving the front section of the seat frame to the required position. The rails
with which the seat depth is adjusted are marked with the settings for each potential position. The
scale is marked with “millimeters” on one side and “inches” on the other.
6. Secure it at the required setting by remounting the five screws.
Seat depth Back rest position Leg rest position
M300/M400 Other Models M300/M400 Other Models
370 mm. / 15” N/A -100 mm. / -4” N/A 0
395 mm. / 16” -100 mm. / -4” -75 mm. / -3” +25 mm. / +1” 0
420 mm. / 17” -75 mm. / -3” -50 mm. / -2” +25 mm. / +1” 0
445 mm. / 18” -50 mm. / -2” -25 mm. / -1” +25 mm. / +1” 0
470 mm. / 19” -25 mm. / -1” 0 +25 mm. / +1” 0
495 mm. / 20” 0 0 +25 mm. / +1” +25 mm. / +1”
520 mm. / 21” 0 0 +50 mm. / +2” +50 mm. / +2”
545 mm. / 22” 0 0 +75 mm. / +3” +75 mm. / +3”
570 mm. / 23” 0 0 +100 mm. / +4” +100 mm. / +4”

8
Adjustment Adjusting the seat depth
Adjustment of the rear section of the Seat frame (Back rest position).
7. Remove the seven screws marked (B) securing the Seat frames rear section, see fig. below.
8. Adjust the seat depth by moving the rear section of the seat frame to the required position. The rails
with which the seat depth is adjusted are marked with the settings for each potential position. The
scale is marked with “millimeters” on one side and “inches” on the other.
9. Secure it at the required setting by remounting the five screws.
The position of the rear section of the Seat frame (Back rest Position) is fixed by five
screws marked with the letter L.
Seat depth Back rest position Leg rest position
M300/M400 Other Models M300/M400 Other Models
370 mm. / 15” N/A -100 mm. / -4” N/A 0
395 mm. / 16” -100 mm. / -4” -75 mm. / -3” +25 mm. / +1” 0
420 mm. / 17” -75 mm. / -3” -50 mm. / -2” +25 mm. / +1” 0
445 mm. / 18” -50 mm. / -2” -25 mm. / -1” +25 mm. / +1” 0
470 mm. / 19” -25 mm. / -1” 0 +25 mm. / +1” 0
495 mm. / 20” 0 0 +25 mm. / +1” +25 mm. / +1”
520 mm. / 21” 0 0 +50 mm. / +2” +50 mm. / +2”
545 mm. / 22” 0 0 +75 mm. / +3” +75 mm. / +3”
570 mm. / 23” 0 0 +100 mm. / +4” +100 mm. / +4”

9
Adjustment Adjusting the seat depth
10. Mount UniTrack rails of a suitable length for the
seat depth setting. See the table on 43. The
rails are each held in place by two screws. See
the illustration. Use a torque wrench to tighten
the screws.
Tightening torque 9.8 Nm.
11. Mount seat plates of a suitable length for the
seat depth setting. See the table on 43. The
plates are held in place by two screws at the
back edge and two quick-mount clamps at the
front. See the illustration.
12. Fit a cushion of a suitable length/width for
this setting. See the table on 43. Secure the
cushion in place using the Velcro on the back
of the cushion.
The UniTrack rails are fixed in place
with two screws each.
The seat plates are held in place by two
screws at the back edge and two quick-mount
clamps at the front.
The seat's mounting position on the seat lift/fixed seat column may need to be changed following
adjustment of seat depth. Failure to do this correctly may impair the driving properties of the
wheelchair, leading to an increased risk of personal injury and damage to property, including
damage to the wheelchair. See 37 for further information.
m WARNING!

10
Adjusting the seat width
The seat width can be adjusted to give the user
optimal comfort. There are three fixed levels,
each 25 mm apart.
1. Remove the seat cushion by lifting it straight
up. It is attached by means of Velcro on the
rear of the cushion.
2. Remove the seat plates, which are held in
place by two screws at the back edge and
two quick-mount clamps at the front. See the
illustration. First remove the screws, then use
your hand to carefully push the seat plate
from below to release the quick-mount clamps
at the front.
The seat width is fixed using four screws.
3. Remove the four screws securing the seat width adjustment unit. See the illustration below.
4. Adjust the seat width by moving the right or left section of the seat frame to the required position.
The rails with which the seat width is adjusted are marked with the settings for each potential
position. The scale is marked with "millimeters" and "inches".
5. Secure it at the required setting by replacing the four screws.
7. Remount the seat plates using two screws at the back edge and two quick-mount clamps at the front.
See the illustration.
8. Fit a cushion of a suitable length/width for this setting. See the table on 43. Secure the cushion in
place using the Velcro on the back of the cushion.
The seat plates are held in place by two
screws at the back edge and two quick-mount
clamps at the front.
For this task the following tools are necessary:
1 Allen key 5 mm
Adjustment Adjusting the seat width

11
11
Adjusting the backrest height
The backrest height can be adjusted to give the
user optimal comfort. Adjustment is possible
by moving the locking mechanism on the upper
section of the backrest between six fixed stages
25 mm apart.
1. Remove the backrest cushion by pulling it
straight forwards. It is attached by means of
Velcro on the rear of the cushion.
2. For access to the locking mechanism, set the
backrest angle to its most upright position.
Remove the upper section of the backrest
by carefully opening the locking mechanism
catch outwards while also pulling the upper
section of the backrest straight up. See the
illustration.
The locking mechanism is held
in place by two screws.
The backrest locking mechanism mounted for
backrest height 645 mm (26 inches).
3. Remove the two screws holding the backrest
locking mechanism in place. See the
illustration.
4. Adjust the height of the backrest by sliding
the upper section upwards/downwards to
the required position. The upper backrest
plate is marked with the settings for each
potential position. The scale is marked with
"millimeters" and "inches".
5. Lift up the upper section of the backrest
enough that the locking mechanism can be
mounted with its top edge in line with the
required height on the backrest scale. See
the illustration. Mount the locking mechanism
using the two screws.
6. Slide the upper section of the backrest
down until secured in position by the locking
mechanism. See the illustration above.
7. Fit a cushion of a suitable height/width for
this setting. See the table on 43. Secure the
cushion in place using the Velcro on the back
of the cushion.
The upper section of the backrest is secured
with a locking mechanism.
For this task the following tools are necessary:
1 Allen key 3 mm
Adjustment Adjusting the backrest height

12
1212121212
12
Adjusting the armrest height
The height of the armrest can be adjusted to
provide the user with optimal comfort.
The armrest height is fixed using four screws. To perform this height adjustment, use the adjustment
screw in the center of the backrest.
2. Adjust to the required position using the adjustment screw on the rear of the backrest. See the
illustration below.
3. Secure the armrest at the preferred height by tightening the four screws on the rear of the backrest.
See the illustration below.
For this task the following tools are necessary:
1 Allen key 5 mm
1. Undo the four screws holding the armrest at its current height. See the illustration below.
Adjustment Adjusting the armrests
Do not subject the armrests to load when adjusting them. Risk of crushing.
m WARNING!

13
1313
Adjusting the armrest angle
The angle of the armrest can be easily adjusted
to provide the user with optimal comfort.
1. Adjust the armrest angle by turning the
adjustment bars. See the illustration.
Adjust the armrest angle by turning the
adjustment bars
Individual adjustment of armrest height/angle
For this task the following tools are necessary:
1 Allen key 5 mm
Individual adjustment of the armrest height and angle
The height/angle of the armrest is normally adjusted as described on s 32-33. If specifically required, the
armrests can be adjusted individually for users who want the left and right armrest at different heights
and/or angles. This adjustment is only performed in special cases. It may have negative effects on the
movement of the armrest when raising/lowering the backrest.
1. Adjust the armrest height by turning the adjustment bars (C). See the illustration.
2. The angle of the armrest is secured using a screw (B). Move the screw from a fixed position (A) to a
flexible position (B). See the illustration below.
3. Adjust the armrest to the required angle and secure by tightening the screw (B). See the illustration below.
Adjustment Adjusting the thigh support and trunk support
Do not subject the armrests to load when
adjusting them. Risk of crushing.
m WARNING!
Do not subject the armrests to load when
adjusting them. Risk of crushing.
This type of adjustment is only performed in
special cases. It may have negative effects
on the movement of the armrest when raising/
lowering the backrest.
m WARNING!

14
1414141414
Adjusting the armrest width
The distance between the armrests can be
adjusted to give the user optimal comfort.
1. Loosen the screw for armrest width adjustment
approximately 3 turns. See the illustration.
2. Push in/pull out the armrest shaft to the
desired position.
3. Secure it at the required setting by retightening
the screw.
The armrest width is fixed using one screw.
For this task the following tools are necessary:
1 Allen key 5 mm
Turn the adjustment bar bracket
With the armrests set both wide and low, the
adjustment bar for the left armrest angle can touch
the rear actuator bracket for the backrest angle.
If this is the case, turn the adjustment bar bracket.
Turn the bracket 180° so the adjustment bar is closer to the center of the seat.
For this task the following tools are necessary:
1 Combination wrench 10 mm.
1. Remove the lower bracket of the adjustment bar, which is secured with a screw, washer and nut. See the
illustration (1).
2. Turn the bracket 180° so the adjustment bar is closer to the center of the seat. See the illustration (2).
3. Refit the lower bracket of the adjustment bar in its new position using the screw, washer and nut.
See the illustration (3).
Adjustment Adjusting the armrests

15
15151515151515
15
Adjusting the trunk support height
The height of the trunk support can be adjusted
to give the user optimal comfort.
1. Loosen the screw for trunk support height
adjustment approximately 2 turns. See the
illustration.
2. Slide the trunk support up/down to the desired
position.
3. Secure it at the required setting by retightening
the screw.
The trunk support height is fixed using one screw.
For this task the following tools are necessary:
1 Allen key 5 mm
Adjusting the thigh support
The position of the thigh support can be adjusted
forwards or backwards to give the user optimal
comfort. Slide the thigh support forwards or
backwards to the desired position.
The position of the thigh support can be adjusted
Adjustment Adjusting the thigh support and trunk support

16
Repairs
Replacing a UniTrack rail
UniTrack rails are available in five different lengths
that are used depending on the seat depth
selected. See the table on 43.
Removal
1. Remove the two screws that hold the rail in
place. See the illustration.
Mounting
1. Mount the UniTrack rail using two screws.
See the illustration. Use a torque wrench to
tighten the screws.
Tightening torque 9.8 Nm.
The UniTrack rail is held in place by two screws.
Repairs Replacing a UniTrack rail
For this task the following tools are necessary:
1 Allen key 5 mm

17
Replacing seat plates
Seat plates are available in five different lengths
that are used depending on the seat depth
selected. See the table on 43.
Removal
1. Remove the seat cushion by lifting it straight
up. It is attached by means of Velcro on the
rear of the cushion.
2. Remove the seat plates, which are held in
place by two screws at the back edge and
two quick-mount clamps at the front. See the
illustration. First remove the screws, then use
your hand to carefully push the seat plate
from below to release the quick-mount clamps
at the front.
Mounting
1. Mount the seat plates by first mounting them
with the quick-mount clamps at the front and
then the screws at the back. Fit the quick-
mount clamps by pushing them straight into
the holes.
2. Fit the seat cushion by pressing it against the
seat plate in the desired position to ensure
good contact for the Velcro on its underside.
The seat plates are held in place by two
screws at the back edge and two quick-mount
clamps at the front.
Repairs Replacing seat plates
For this task the following tools are necessary:
1 Allen key 3 mm

18
Replacing backrest plates
Backrest plates are available in three different
widths to fit most users. If you change the size of
the backrest plates you will also have to change
the cushion to one that is a suitable size. See the
table on 43.
Removal
1. Remove the backrest cushion by pulling it
straight forwards. It is attached by means of
Velcro on the rear of the cushion.
2. Remove the backrest upper plate. For
access to the locking mechanism, set the
backrest angle to its most upright position.
Remove the upper section of the backrest
by carefully opening the locking mechanism
catch outwards while also pulling the upper
section of the backrest straight up. See the
illustration.
The upper section of the backrest is secured
with a locking mechanism.
3. Remove the knob securing the position of the
lower backrest plate. See the illustration.
The lower backrest plate is secured
by means of a knob
4. Remove the backrest by pulling the backrest
plate straight up so it can be removed from
the four locking devices. See the illustration.
The lower backrest plate is secured by
means of four locking devices
Repairs Replacing backrest plates

19
3. Mount the upper backrest plate by sliding it
down into the lower plate's grooves. The height
of the backrest may need to be adjusted. This
is described on 11.
4. Fit the backrest cushion by pressing it against
the plate in the desired position to ensure
good contact for the Velcro on its underside.
The lower section of the cushion is fastened
to the seat plate by means of Velcro.
The upper section of the backrest is secured with
a locking mechanism.
2. Secure the position of the plate by fitting the
knob. See the illustration.
The lower backrest plate is secured by
means of a knob
Mounting
1. Mount the lower backrest plate by lining up
the four "keyholes" on the locking devices and
then sliding the plate straight down.
The lower backrest plate is secured by means of
four locking devices
Repairs Replacing backrest plates

20
Removal
1. Remove the backrest plates. For a detailed
description, see 18.
2. Loosen the two screws holding the plastic
cover to the back of the backrest. Twist the
plastic cover downwards. See the illustration.
The plastic cover is fixed using two screws.
3. Remove the BUS contacts from the contact
block and divide the cabling for the ICS
switchbox at the contacts on the cabling.
1. The contact on the ICS switchbox cabling is
above the contact block. 2. The BUS contacts are
mounted on the contact block.
4. Remove the four screws that hold the armrests
in place. See the illustration. Then carefully
move the armrests downwards or backwards.
5. Remove the joint for the backrest slide
function, which is held in place by one screw.
See the illustration.
The armrests are held in place by four screws.
The joint for the backrest slide function is held in
place by one screw
Replacing the armrest height adjustment mechanism
Repairs Replacing the armrest height adjustment mechanism
For this task the following tools are necessary:
1 Allen key 3 mm
1 Allen key 5 mm

21
The adjustment bar brackets are each held in
place by two screws
7. Loosen the screws on the left and right side of
the backrest profile and then remove its end
cover by sliding it straight out.
8. Remove the adjustment bar brackets, which
are each held in place by two screws. See the
illustration at bottom left.
9. Screw the adjustment bar down far enough to
be able to prise it up out of the groove on the
backrest profile. See the illustration at bottom
right.
The end cover of the backrest profile is secured
using one screw on the left side and one on the right
6. Remove the backrest profile, which is secured
using two screws on the left and right. See the
illustration. Remove by undoing the screws
and pulling the backrest profile straight up.
The backrest profile is secured using two screws
on the left and right
Screw the adjustment bar down far enough to
be able to prise it up out of the groove on the
backrest profile
Replacing the armrest height adjustment mechanism
Repairs