Kushall K-Series User manual

Mentor
Technical module
Version > 1/2005

Technical module
1
Copyright © 08/2008,Küschall AG
K-Series
K-Series 05
Changing configurations
Table of contents
1 Adjustment possibilities 2
1.1 Seat width (SB) 2
1.2 Seat depth (ST) 2
1.3 Leg length (UL) 2
1.4 Rear seat height (SHh) 3
1.5 Front seat height (SHv) 4
1.6 Siderest / Armrest 5
1.7 Clothes guard / Mudguard 5
1.8 Backrest height 6
1.9 Backrest angle 6
2Assembly and adjustment methods 7
2.1 Footrest replacement 7
2.2 Footrest height adjustment 7
2.3 Footrest mounted in high position 7
2.4 Footplate angle adjustment 8
2.5 Front fork replacement 8
2.6 Quick release fork 9
2.7 Front wheel replacement 9
2.8 Rear seat height adjustment 10
2.9 Front seat height adjustment 10
2.10 Tipping Point adjustment 11
2.11 Parking brakes assembly and adjustment 11
2.12 Clothes guard assembly 12
2.13 Mudguard assembly and adjustment 12
2.14 Armrest assembly and adjustment 13
2.15 Siderest assembly and adjustment 13
2.16 Rear wheel extension assembly and adjustment 14
2.17 Rear wheel camber adjustment 14
2.18 Control of rear wheel parallelism 15
2.19 Suspension assembly 16
2.20 Backrest height adjustment 17
2.21 Backrest angle adjustment 19
2.22 Antitipper assembly and adjustment 19
2.23 Active-Antitipper assembly and adjustment 20
2.24 Transit wheels assembly and adjustment 21

4ROUBLESHOOTING

Technical module
2
Copyright © 08/2008,Küschall AG
K-Series 1 Adjustment possibilities
1.1 Seat width (SB)
Available seat widths: SB34 to SB46, in 2 cm steps.
The seat width cannot be modified easily once it has been set. It would be necessary to
replace the seat module, backrest, camber bar and footrest.
This modification is not described in the Mentor.
1.2 Seat depth (ST)
Available seat depths: ST35 to ST50 in 2.5 cm steps.
* not possible with 26’’rear wheel and not with SB46.
Adjusting the seat depth requires replacing the entire seat module including the seat
upholstery and seat rails as well as the seat cushion.
1.3 Leg length (UL)
The footrest must be attached in a higher or lower position to adjust the leg length.
(Chapter 2.2)
The UL can be adjusted from 29cm to 48cm.
Compatible frame to seat depth
K4 (75°) AirLite (90°)
ST SHv 48 SHv 49 SHv 50 SHv 51 SHv 49 SHv 50 SHv 51
35 * K4-5 K4-5 K4-5 K4-5 AirLite AirLite AirLite
37.5 K4-5 K4 K4 K4 AirLite AirLite AirLite
40 K4-5 K4 K4 K4 AirLite AirLite AirLite
42.5 K4 K4
K4+5
K4
K4+5
K4
K4+5
AirLite
AirLite+5
AirLite
AirLite+5
AirLite
AirLite+5
45 K4 K4
K4+5
K4
K4+5
K4
K4+5
AirLite
AirLite+5
AirLite
AirLite+5
AirLite
AirLite+5
47.5 — K4+5 K4+5 K4+5 AirLite+5 AirLite+5 AirLite+5
50 — K4+5 K4+5 K4+5 AirLite+5 AirLite+5 AirLite+5
UL Configuration Footrest
UL29 – UL33 all
UL34 – UL40
Frame K4+5
Frame AirLite+5
with SHv ≥50cm
all others
UL41 – UL48 all

Technical module
3
Copyright © 08/2008,Küschall AG
K-Series
1.4 Rear seat height (SHh)
To adjust the rear seat height, change the position of the seat module on the frame
(Chapter 2.8).The vertical seat brace is available in three sizes for seat heights of 38 cm
to 49 cm.
We generally recommend attaching the vertical seat brace to the lower hole on the
frame.
Rear seat height depending on rear wheel position and size
24‘‘ wheel 25‘‘ wheel 26‘‘ wheel
SHh S M L S M L S M L
38 1
39 1 1
40 2 1 1
41 3 5a 2 1
42 4 5 3 5a 2
43 64535a
44 7 9a 6 4 5
45 8 9 7 9a 6
46 10 8 9 7 9a
47 11 10 8 9
48 12 11 10
49 12 11
Please note: Adjust-
ments made to the
rear seat height
changes the seat
angle.The front seat
height may need to
be adjusted accord-
ingly.
1
2
3
45
6
7
89
10
11
12
5a
6a
7a
8a 9a
10a
11a
12a
SM L

Technical module
4
Copyright © 08/2008,Küschall AG
K-Series 1.5 Front seat height (SHv)
The front seat height depends on several factors that influence each other.
The dimension of the front and rear wheels determine the frame height. Position and
size of the hinge bracket to the seat module as well as the frame, seat depth and rear seat
height influence the front seat height.
1. Frame
The minimum front seat height depends on the combination of front wheels and rear
wheels:
Only choose combinations that are specified in the table on page 3 to ensure that the
frame is straight and the front wheel supporters are perpendicular to the ground.
2. Seat module
Once the rear and front wheels as well as the front forks have been defined, the front seat
height can be varied by adjusting the mounting position of the seat module on the frame.
There are 2 sizes of front hinge brackets with each 2 fastening possibilities to choose from:
(Chapter 2. 9)
Please note:
Adjustments made
to the front seat
height changes the
seat angle.The rear
seat height may
need to be adjusted
accordingly.
Possible combinations of front and rear wheels
Rear wheel Frame 3'' 4'' 5''
24‘‘
K4-5 FED
K4 / K4+5 DCB
AirLite / AirLite+5 BA--
25‘‘
K4-5 -- F E
K4 / K4+5 EDC
AirLite / AirLite+5 CB--
26‘‘ K4 / K4+5 FED
AirLite / AirLite+5 DCB
1cm
26''
25''
24''
3'' 4'' 5''
A B C D E F
K4 / K4+5 K4-5
AirLite

Technical module
5
Copyright © 08/2008,Küschall AG
K-Series
1.6 Siderest / Armrest
The standard clothes guard can be complemented with an armrest.
Mounting the armrest (Chapter 2.14)
1.7 Clothes-guard / Mudguard
The standard clothes-guard can be replaced by a mudguard. (Chapter 2.13)
Clothes-guard / mudguard size
Rear wheel
M
L
SHh 24‘‘ 25‘‘ 26‘‘
38 L — —
39 L L —
40 L L L
41 L L L
42 L L L
43 M L L
44 M L L
45 M L L
46 M L L
47 M M L
48 M M L
49 M M L

Technical module
6
Copyright © 08/2008,Küschall AG
K-Series 1.8 Backrest height
To adjust the backrest height, replace the backrest tubes. (Chapter 2.20)
1.9 Backrest angle
To adjust the backrest angle re-position the eccentric plate in the backrest joint.
(Chapter 2.21)
The following angles can be set (in relation to the seat):
Backrest height depending on push handle and backrest tube
RH No push handles Standard push handles Foldable push handles Upholstery
27SSSSSSS
28.5 S S S S S S S
30SSSSSSS
31.5 S S S S S S M
33LSSSLSM
34.5 L M L S L S M
36LMLSLSM
37.5 L M L S L S L
39 L M L S L M L
40.5 L M L L L M L
42 L L L L L M L
43.5 L L L L L M L
45 L L L L L M L
46.5 L L L L L M L
48 L L L L L M L
-8
0
+8
-4
+4
0
-8
0
+8
-4
+4
0
-8
0
+8
-4
+4
0
-8
0
+8
-4
+4
0
-8
0
+8
-4
+4
0
-8° -4° 0° +4° +8°

Technical module
7
Copyright © 08/2008,Küschall AG
K-Series
2 Assembly and adjustment methods
2.1 Footrest replacement
Remove the bolts on both sides.
Remove the footrest holder from the frame
and insert the new footplate.
Tighten the bolts securely on both sides.
2.2 Footrest height adjustment
The footrest height adjusts in 1 cm steps.
Proceed as follows:
Remove the bolts from both sides of
footrest.
Slide the tube into the correct position,
re-assemble the bolts on both sides of
the footrest and tighten.
The footrest holder must be firmly attached in the frame tube.
A high-mounted footplate may be required if the leg length cannot be achieved with
the regular footrest.(Chapter 2.3)
2.3 Footrest mounted in high position
Slide the footrest for the high-mounted footplate into the frame and attach with
bolt on both sides.
Fasten the clamp set with bolt to both sides of the frame, tighten slightly.
Slide the high-mounted footplate in the clamp set to the required height.
Tighten bolt .
1
1
1
2
34

Technical module
8
Copyright © 08/2008,Küschall AG
K-Series 2.4 Footplate angle adjustment
The footplate angle can only be adjusted if the footrest is angle adjustable. Proceed as
follows:
Loosen all four bolts until the footplate can be moved.
Pivot the footplate into the required position and tighten the bolts.
The footplate must fit tightly to the wheelchair with no room for movement.
2.5 Front fork replacement
Remove the bearing block cap by inserting
two screwdrivers into the grooves and pushing
it upward.
Loosen the nut and washer .
Remove the front fork .
Check the ball bearing block and replace if
necessary.
Attach the new front fork with the washer 
and nut; tighten.
Perform functional check (see below)
Attach the sealing cap again.
Functional check:
Tip the wheelchair 90° backwards, so that the
chair is lying on the backrest and rear wheels.
Turn the fork upwards (position A) and let it
tip downwards.
The fork is positioned correctly when it turns
slightly over the lowest point and stays there
(position B).
The fork hasn’t been tightened sufficiently if
it turns back into the lowest position (position
C). If tightened wrongly, there is a possibility
for the front wheels to start fluttering at high
speeds.
1
1
2
3
4
5
4
A
B
C

Technical module
9
Copyright © 08/2008,Küschall AG
K-Series
2.6 Quick release fork
The quick-release fork can only be used with the corresponding frame.
To retrofit a wheelchair with a regular fork, the frame must be exchanged. In this case,
please contact your Küschall reference person.
Fork replacement
Press the pin on the bearing block and remove the fork.
Slide the new fork into the bearing block until the
mechanism locks into place and can no longer be removed.
2.7 Front wheel replacement
Loosen the bolts . Remove the front wheel axle .
Remove the front wheel .
Attach a new front wheel
or
 Place the front wheel in its new position.
(2 bushings must be slid onto the axle with a Starec wheel, Skater wheel, 3’’ Sport
wheel or 5’’Softrollwheel.The bushings are already attached in the smooth running
wheel, sports wheel and pneumatic wheel.)
Guide the front wheel axle through the fork and the wheel (and the bushing ).
Tighten the bolts again.
Functional check:The wheel must be fastened firmly, but still be able to spin easily.
1
2
1
3
4
1
2
1
4