Ki Mobility LIBERTY FT User manual

1
This technical manual is designed to aid in the different procedures that may be
needed for the Liberty FT wheelchair. This technical manual does not replace, but
aids the owner manual, adjustment guides and instructions. The procedures shown
in this technical manual should only be performed by an Assistive Technology
Practitioner (ATP) or clinical professional trained to do wheelchair repairs,
adjustments and retrofits.
Additional information can be found in the Liberty FT Owner Manual and Liberty FT
Assembly Guide. The owner manual and adjustment guides can be found on the Ki
Mobility website.
If you have any questions or concerns about any aspect of this wheelchair, this
manual, or the service provided by us or your retail supplier, please do not hesitate
to contact us by telephone at:
715-254-0991
In writing at:
Ki Mobility
5201 Woodward Drive
Stevens Point, WI 54481
U.S.A
Via email at:
[email protected]
Or via our Authorized EU Representative:
James Leckey Design
19C Ballinderry Road
Lisburn
BT28 2SA
Phone: [phone] (UK) or 1800 626020 (ROI)
www.leckey.com

2
A. Tools ............................................................................................................... 3
B. Seat Height - Rear Wheels.............................................................................. 4
C. Seat Height - Casters ..................................................................................... 6
D. Seat Height - Caster Positioning within Caster Fork ...................................... 9
E. Seat Height - Axle Position ............................................................................. 10
F. Seat Depth - Backrest .................................................................................... 11
G. Seat Depth - Axle Plate................................................................................... 12
H. Backrest - Back Height................................................................................... 12
I. Seat Width ...................................................................................................... 13
J. Non-Folding Frame ......................................................................................... 14
K. Axle Plate Construction .................................................................................. 15
L. Caster Construction........................................................................................ 16
M. Fork and Stem Replacement .......................................................................... 17
N. Wheel Pull Correction ..................................................................................... 21
O. Adjusting Gas Springs .................................................................................... 23
P. Replacing Gas Springs ................................................................................... 24
Q. Replacing Frame Cover .................................................................................. 25
R. Fold Lever Replacement ................................................................................. 26
S. Adjusting Depth .............................................................................................. 28
T. Changing Seat Sling ....................................................................................... 29
U. Changing Seat Rail ......................................................................................... 29
V. Changing to a Short Back............................................................................... 30
W. Replacing Tilt Cables ...................................................................................... 32
X. Installing Transit .............................................................................................. 34
Y. Wheel Lock Configurations............................................................................. 35
Z. Handrim Configurations.................................................................................. 36
AA. Handrim Construction..................................................................................... 37
AB. Footplate and Heel Loops .............................................................................. 38
AC. Pro ELR Adjustment........................................................................................ 38
AD. Rotating 4-Way Latch ..................................................................................... 39
AE. Backrest Angle Adjustment ............................................................................ 40
AF. Seat Upholstery .............................................................................................. 41
AG. Adjusting Height Adjustable T-Arm Position .................................................. 42
AH. Angle Adjustable Locking Flip Up Extendable Armrest .................................. 43
AI. Anti-Tips.......................................................................................................... 44
AJ. Multi-Angle Footrest ....................................................................................... 45
AK.
Table of Contents

3
Tools
Please see the list below to identify the tools needed throughout this tech manual. Always
check tools to ensure the ends are not stripped and that the tool can perform it’s function
properly without damaging any parts or hardware on the chair.
Tools Needed
• 2.5mm Allen Wrench • Two 8mm Wrenches
• 3mm Allen Wrench • Two 10mm Wrenches
• 4mm Allen Wrench • 13mm Wrench
• 5mm Allen Wrench • 17mm Wrench
• 5.5mm Allen Wrench • 19mm Wrench
• 6mm Allen Wrench • 24mm Wrench
• Utility blade • Phillips Screwdriver

4
Seat Height - Rear Wheels
Determine your wheel and caster selection based upon your desired seat height. Once determined, be
sure to check Caster and Footrest Compatibility charts before ordering or making any physical changes to
the chair. Also, be aware that a specific rear seat height may be accomplished with more than one type of
axle plate. See axle plate positioning matrix to determine if your current axle plate may be utilized for your
desired rear seat height.
Rear Wheel Size
Caster Size
4" 5" 6" 6" X 2" 8" 8" X 2"
Seat Height
12"
13 14 15 15 17 17
13.5 14.5 15.5 15.5 17.5 17.5
14 15 16 16 18 18
14.5 15.5 16.5 16.5 18.5 18.5
15 16 17 17 19 19
15.5 16.5 17.5 17.5 19.5 19.5
16 17 18 18 20 20
17.5 18.5 18.5
18 19 19
18.5
16"
14.5 14.5 15 15 17 17
15 15 15.5 15.5 17.5 17.5
15.5 15.5 16 16 18 18
16 16 16.5 16.5 18.5 18.5
16.5 17 17 19 19
17 17.5 17.5 19.5 19.5
17.5 18 18 20 20
18 18.5 18.5
18.5 19 19
16" with Low
Poly Tire
13.5 14 15 15 17 17
14 14.5 15.5 15.5 17.5 17.5
14.5 15 16 16 18 18
15 15.5 16.5 16.5 18.5 18.5
15.5 16 17 17 19 19
16 16.5 17.5 17.5 19.5 19.5
17 18 18 20 20
17.5 18.5 18.5
18 19 19
18.5

5
Seat Height - Rear Wheels
Rear Wheel
Size
Caster Size
4" 5" 6" 6" X 2" 8" 8" X 2"
Seat Height
20"
13 14 15 15 17 17
13.5 14.5 15.5 15.5 17.5 17.5
14 15 16 16 18 18
14.5 15.5 16.5 16.5 18.5 18.5
15 16 17 17 19 19
15.5 16.5 17.5 17.5 19.5 19.5
16 17 18 18 20 20
17.5 18.5 18.5
18 19 19
18.5
22"
14 14 15 15 17 17
14.5 14.5 15.5 15.5 17.5 17.5
15 15 16 16 18 18
15.5 15.5 16.5 16.5 18.5 18.5
16 16 17 17 19 19
16.5 17.5 17.5 19.5 19.5
17 18 18 20 20
17.5 18.5 18.5
18 19 19
18.5
24"
15 15 15 15 17 17
15.5 15.5 15.5 15.5 17.5 17.5
16 16 16 16 18 18
15 16.5 16.5 16.5 18.5 18.5
15.5 17 17 17 19 19
16 17.5 17.5 17.5 19.5 19.5
18 18 18 20 20
18.5 18.5 18.5
18 19 19
24" with Low
Poly Tire
14.5 14.5 15 15 17 17
15 15 15.5 15.5 17.5 17.5
15.5 15.5 16 16 18 18
16 16 16.5 16.5 18.5 18.5
16.5 17 17 19 19
17 17.5 17.5 19.5 19.5
17.5 18 18 20 20
18 18.5 18.5
18.5 19 19

6
Seat Height - Casters
Seat Height - Caster Compatibility charts are utilized to prevent interference between the caster and side
frame or caster and hanger/footrest. Higher degree hangers and larger casters are more likely to create
interference. Use the charts below to determine if your wheel, caster, caster stem and seat height
configuration will work with your desired hanger angle selection.
Caster Footrest Compatibility Matrix
60° and 70° Extension Mount Hangers
Caster Housing Forward Caster Housing Reversed Caster Housing
Caster Size 4 5 6 6X2 8 8X2 4 5 6 6X2 8 8X2
Composite Footrest
Front Seat to Floor Height
13
13½
14
14½
15
15½
16
16½
17
17½
18
18½
19
19½
20
Angle Adjustable Footrest
13
13½
14
14½
15
15½
16
16½
17
17½
18
18½
19
19½
20
Seat height not
available
No go with short
stem
Available with short
and long stem

7
Seat Height - Casters
Caster Footrest Compatibility Matrix
80° Extension Mount Hangers
Caster Housing Forward Caster Housing Reversed Caster Housing
Caster Size 4 5 6 6X2 8 8X2 4 5 6 6X2 8 8X2
Composite Footrest
Front Seat to Floor Height
13
13½
14
14½
15
15½
16
16½
17
17½
18
18½
19
19½
20
Angle Adjustable Footrest
13
13½
14
14½
15
15½
16
16½
17
17½
18
18½
19
19½
20
Seat height not
available
No go with short
stem
Available with short
and long stem

8
Seat Height - Casters
Caster Footrest Compatibility Matrix
Direct Mount Hangers
Caster Housing Forward Caster Housing Reversed Caster Housing
Caster Size 4 5 6 6X2 8 8X2 4 5 6 6X2 8 8X2
70°
Front Seat to Floor Height
13
13½
14
14½
15
15½
16
16½
17
17½
18
18½
19
19½
20
80°
13
13½
14
14½
15
15½
16
16½
17
17½
18
18½
19
19½
20
90°
13
13½
14
14½
15
15½
16
16½
17
17½
18
18½
19
19½
20
Seat height not
available
No go with short
stem
Available with short
and long stem

9
Seat Height - Caster Positioning within Caster Fork
To adjust the caster within the caster fork, use two 13mm wrenches to remove the bolt, two spacers (used
on all except 8x2) and nut. Move everything to the correct hole and reinstall hardware to secure.
Front Seat Height Matrix - Casters and Forks
Fork Hole (Reference diagram above) 123456
Caster Fork Stem Seat Height
4"
4" Short 13 13.5
Tall 14.5 15
5" Short 13.5 14 14.5
Tall 15 15.5 16
5"
5" Short 14 14.5 15
Tall 15.5 16 16.5
6" Short 14.5 15 15.5 16
Tall 16 16.5 17 17.5
7" Short 16 16.5 17 17.5
Tall 17 17.5 18 18.5
6"
6" Short 15 15.5 16 16.5
Tall 16 16.5 17 17.5
7" Short 16 16.5 17 17.5 18
Tall 17 17.5 18 18.5 19
6X2
6W Short 15 15.5 16 16.5
Tall 16.5 17 17.5 18
7W Short 16 16.5 17 17.5 18
Tall 17 17.5 18 18.5 19
8" 7" Short 17 17.5 18 18.5 19
Tall 18 18.5 19 19.5 20
8X1.5
6" Short 16.5 17 17.5
Tall 17.5 18 18.5
7" Short 17 17.5 18 18 18.5
Tall 18 18.5 19 19.5 20
8X2 7W Short 17 17.5 18 18.5 19
Tall 18 18.5 19 19.5 20
1
2
3
4” Fork
2
4
3
4
5
6
1
2
3
4
5
5” Fork & 6”
Wide Fork
6” Fork 7” Fork & 7”
Wide Fork
1
2
1

10
Seat Height - Axle Position
Based on your axle plate selection or type - use the following drawings and chart below to determine the
vertical position of the axle plates to achieve desired rear seat height. A 13mm wrench is needed for the
axle plate bolts.
Rear Seat Height Matrix - Axle Positioning
Wheel
Size
High/Extended Axle Plate Standard Axle Plate
1234567891011121314123456789
12
Poly 13 13.5 14 14.5 15 15.5 16 16.5 17 17.5 18 18.5
12 13 13.5 14 14.5 15 15.5 16 16.5 17 17.5 18 18.5 19
16
Low
Poly
13.5 14 14.5 15 15.5 16 16.5 17 17.5 18 18.5 19 19.5 20
16 14.5 15 15.5 16 16.5 17 17.5 18 18.5 19 19.5 20 20.5 21
20
Low
Poly
16 16.5 17 17.5 18 18.5 19 19.5 20 20.5 21 13 13 13.5 14 14.5 15 15.5 16 16.5
20 16.5 17 17.5 18 18.5 19 19.5 20 20.5 21 13 13.5 14 14.5 15 15.5 16 16.5 17
22
Low
Poly
17 17.5 18 18.5 19 19.5 20 20.5 21 13.5 14 14.5 15 15.5 16 16.5 17 17.5
22 17.5 18 18.5 19 19.5 20 20.5 21 14 14.5 15 15.5 16 16.5 17 17.5 18
24
Low
Poly
17.5 18 18.5 19 19.5 20 20.5 21 14.5 15 15.5 16 16.5 17 17.5 18 18.5
24 18.5 19 19.5 20 20.5 21 15 15.5 16 16.5 17 17.5 18 18.5 19
Standard Axle Plate Extended Axle Plate
High Axle Plate
High Axle Plate (Flipped)
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Primary Frame Index Bolt - the
frontmost bolt of the double bolts.
Determines the axle plate position.

11
Seat Depth - Backrest
Seat Tube Length Backrest Position Seat Depth
Short
1 14
2 15
3 16
Medium
1 16
2 17
3 18
Long
1 18
2 19
3 20
123
Folding Backrest
12
3
Non-Folding Backrest

12
Seat Depth - Axle Plate
Seat depth can be changed by repositioning the axle plate horizontally. Determine the horizontal
positioning of the axle by using the desired seat depth, axle plate type and Center of Gravity offset within
the drawing and matrix below.
Backrest - Back Height
Determine back post type and height and place on seat frame accordingly.
Axle Plate Style Standard/High Extended
CG Offset +1 0 -1 -2 +1 0 -1 -2
Seat
Depth
14 N/A 1 2 3 N/A N/A N/A 1
15 1 2 3 4 N/A N/A 1 2
16 2 3 4 5 N/A 1 2 3
1734561234
1845672345
19 5 6 7 N/A 3 4 5 6
20 6 7 N/A N/A 4 5 6 7
Back Post Height Range Back Height
Stroller Handle Back Post Short 20
Tall 24
Height Adjustable Straight with Push Handle
Short 14 15 16 17 18
Medium 16 17 18 19 20
Tall 18 19 20 21 22
Height Adjustable 8° Bend with Push Handle
Short 14 15 16 17 18
Medium 16 17 18 19 20
Tall 18 19 20 21 22
123
4
567
CG Offset
Lines represent
front of back cane.
Axle plate position determined by primary
index bolt location (frontmost hole location -
shown here in position 7).
+1 0 -1 -2

13
Seat Width
Seat width is controlled by shortening or extending the length of the cross brace assemblies. Assemblies
come in three sizes resulting in limited range per assembly. Determine the width required, confirm that the
width is within the range of the assembly and relocate cross brace bolts to achieve the width desired.
The hardware that needs to be removed to change the width are shown below. Use two 13mm wrenches
on the front and rear lower braces. The rear upper cross brace hardware is removed using a 4mm Allen
wrench and a 10mm wrench. Ensure each cross brace is set up with the same width configurations.
4”
Dimension A
4”
Dimension A/2 Dimension A/2
Chair Width Dimension A Dimension A/2
14 12.28 6.14
15 13.28 6.64
16 14.28 7.14
17 15.28 7.64
18 16.28 8.14
19 17.28 8.64
20 18.28 9.14
21 19.28 9.64
22 20.28 10.64
Large
14" - 18"
16" - 20"
18" - 22"
Upper and Lower Crossbrace Assembly
Size
Adjustment Range
Small
Medium
Front Cross Brace
Rear Upper Cross Brace
Rear Lower Cross Brace

14
Non-Folding Frame
The hardware and hole locations are different for a non-folding frame. See the image below for details. Two
10mm wrenches, two 13mm wrenches and a 5mm Allen wrench are needed.
NOTE: A non-folding frame does not have the locking tab, pull handle, foot pad or fold strap
brackets.

15
Axle Plate Construction
Use the diagrams below to assemble a Quick Release Axle or a Threaded Axle. Standard, extended and
low axle plates are shown.
3.25” long bolt
used for 12”
and 16” wheels.
3.75” long bolt
used for all
other wheels.
Tighten to 80 ft-lb (108 N-m)
Only used
with spoke
wheels
73mm long QR axle
used for 12” and 16”
wheels. 82mm long QR
axle used for all other
wheels.
Tighten to 80 ft-lb (108 N-m)
Anti-tip bracket (if applicable)
Quick Release Axle
Threaded Axle
Anti-tip bracket (if applicable)

16
Caster Construction
Use the diagrams below to assemble a standard or a tall stem caster assembly. The caster assembly can
be assembled in the forward or reversed configurations. Adjust the eccentric washers as needed to
achieve the 90° to 92°angle dimension.
Not used
with 8X2
casters
Not
used
with 8X2
casters
90° - 92° 90° - 92°
Standard Stem Tall Stem
Reverse
Configuration
Forward
Configuration

17
Fork and Stem Replacement
Remove Fork and Stem
1. Use a flat head screwdriver to remove the cap off of the caster barrel. Be careful not to scratch paint.
2. Use a 19mm socket wrench to remove the nut and washer from inside caster housing. Hold the caster
while removing the nut and washer.

18
Fork and Stem Replacement
3. Remove the caster stem using a 19mm socket wrench on the bottom nut. Save all hardware and stem
if you are not replacing the stem.
NOTE: The hardware on the stem of your chair may look different than what is shown below
depending on the size of your fork and stem. The method of removing the stem is the same for all
sizes.
4. If you are replacing your forks, remove the bolt, nut and two spacers, per caster, using two 13mm
wrenches.

19
Fork and Stem Replacement
Install Fork and Stem
1. Install new fork onto caster with one bolt (A), one nut (B) and two spacers (C) per side using two 13mm
wrenches. Standard forks use spacer 100792 (C) and wide forks use spacer 001246 (C). Also, a
standard fork uses 101829 - M8 x 65 bolt (A) while a wide fork uses the longer 101709 - M8 x 80 bolt
(A).
NOTE: Reference the Front Seat height Matrix for reference on which forks and fork holes to use to
achieve desired height.
123456
Short 13 13.5
Tall 14.5 15
Short 14 14.5 15
Tall 15 15.5 16
Short 14 14.5 15
Tall 15.5 16 16.5
Short 14.5 15 15.5 16
Tall 16 16.5 17 17.5
Short 16 16.5 17 17.5
Tall 17.5 18 18.5 19
Short 1515.5 1616.5
Tall 16.5 17 17.5 18
Short 16 16.5 17 17.5 18
Tall 17 17.5 18 18.5 19
Short 15 15.5 16 16.5 17
Tall 16.5 17 17 17.5 18.5
Short 16 16.5 17 17.5 18
Tall 17 17.5 18 18.5 19
Short 17 17.5 18 18.5 19
Tall 18.5 19 19.5 20 20.5
Short 17 17.5 18 16.5 17
Tall 18 18.5 19 17.5 18 18.5
17.5
8”
7”
6”
8X15
6”
6”
7”
6 X 2
6” Wide
7” Wide
5”
4”
5”
5”
6”
7”
Front Seat Height Matrix
Fork Hole
Caster
Fork
Stem
4”
1
2
3
2
4
4” Fork 5” Fork & 6”
Wide Fork
1
1
2
3
4
5
1
2
3
4
5
6” Fork 7” Fork & 7”
Wide Fork
6
A
B
C
Short 17 17.5 18 18.5 19
Tall 18 18.5 19 19.5 20
7" Wide
8 X 2
8 X 1.5
7”
Short
Tall
17
18
18
19
18.5
20
17.5
18.5
18
19.5