Ki Mobility Little Wave Arc User manual

THIS TECHNICAL MANUAL HAS BEEN DEVELOPED FOR AND
INTENDED TO BE USED BY A QUALIFIED TECHNICIAN
WORKING FOR AN AUTHORIZED KI MOBILITY DEALER.

1
WARNING: Repairs and adjustments not made by a qualified technician working for an
authorized Ki Mobility Dealer can result in poor performance or failure of the device
which may cause serious injury or death.
This technical manual is designed to aid in the different procedures that may be needed for
the Arc 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 Arc Owner Manual. The owner manual 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:
Ki Mobility Portugal, Unipessoal Lda
Rua Santos Pousada, 157 4° andar sala 17
4000-485 Porto

2
A. Tools................................................................................................................ 3
B. Setting Up Seat Depth .................................................................................... 4
C. Seat Height - Configuration Charts................................................................. 5
D. Seat Height - Axle Diagram References ......................................................... 6
E. Seat Height - Fork Diagram Reference ........................................................... 7
F. Caster Construction ........................................................................................ 8
G. Caster Adjustment .......................................................................................... 8
H. Chair Width ..................................................................................................... 10
I. Seat Depth ...................................................................................................... 12
J. Hand Tilt.......................................................................................................... 13
K. Foot Tilt ........................................................................................................... 14
L. Transit ............................................................................................................. 16
M. Anti-Tip............................................................................................................ 17
N. Back Height..................................................................................................... 18
O. Backrest Angle Adjustment............................................................................. 20
P. Reclining Backrest .......................................................................................... 21
Q. Removable Seat Pan....................................................................................... 24
R. Wheel Lock Configurations............................................................................. 25
S. Attendant Foot Lock ....................................................................................... 26
T. Drum Brake ..................................................................................................... 27
U. Handrim Configurations .................................................................................. 30
V. Handrim Construction..................................................................................... 31
W. Footplate and Heel Loops............................................................................... 32
X. Rotating 4-Way Latch ..................................................................................... 33
Y. Pro ELR Adjustment........................................................................................ 34
Z. Adjusting Height Adjustable T-Arm Position................................................... 34
AA. Pediatric Angle Adj. Locking Flip Up Extendable Armrest.............................. 35
AB. Canopy............................................................................................................ 36
AC. Contracture Footrest....................................................................................... 38
AD. Multi-Angle Footrest........................................................................................ 42
AE. Pediatric Pro ELR............................................................................................ 44
AF. IV Holder ......................................................................................................... 50
AG. O2 Holder........................................................................................................ 51
AH. Vent and Battery Tray ..................................................................................... 52
AI. Rigidizer Handle .............................................................................................. 54
AJ. Rigidizer Bar.................................................................................................... 55
AK. Hemi Wheel Lock ............................................................................................ 56
AL. Adjusting Upper Roller .................................................................................... 58
AM.
AN.
AO.
AP.
AQ.
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
• Torque Wrench

4
Setting Up Seat Depth
A common mistake accomodating growth on chairs such as the Arc that grow forward -
When the ATP specifies the depth configuration of a chair, they sometimes build in growth by
unnecessarily placing the client significantly forward of the back canes by extending back
mounting brackets or hardware. This practice puts the client weight forward in the chair
making it harder to tilt and turn the chair. The ATP should place the back of the seating system
as close to the back canes as possible and grow the chair forward (not move the seat back
rearwards) by extending the seat tubes when growth is required.
XS Frame at
15” Deep
XS Frame, 0”
Depth Remaining
Small Frame, 2”
Depth Remaining
Small Frame
at 15” Deep
INCORRECT CORRECT

5
Seat Height - Configuration Charts
Front Seat Height
Caster Fork Stem Fork Hole
123456
5"
5" Std 14.5 15 15.5
Tall 16 16.5 17
6" Std 15.5 16 16.5 17
Tall 17 17.5 18 18.5
7" Std 16.5 17 17.5 18
Tall 18 18.5 19
6"
6" Std 15.5 16 16.5 17
Tall 17 17.5 18 18.5
7" Std 16.5 17 17.5 18 18.5
Tall 18 18.5 19
6X2
6W Std 15.5 16 16.5 17
Tall 17 17.5 18 18.5
7W Std 16.5 17 17.5 18 18.5
Tall 17.5 18 18.5 19
7" 7" Std 17 17.5 18 18.5 19
Tall 18.5 19
8" 7" Std 18 18.5 19
8X2 7W Std 17.5 18 18.5 19
Tall 18.5 19
Rear Seat Height
Axle Plate
Orientation Up Down
Axle Plate
Position 123123
Level ABABABABABAB
Wheel
Size
12"
Poly 14.5 15 15.5 16
12" 14.5 15 15.5 16 16.5
16"
Low
Poly
14.5 15 15.5 16 16.5 17 17.5
16"
Drum
Brake
14.5 15 15.5 16 16.5 17 17.5 18
16" 14.5 15 15.5 16 16.5 17 17.5 18 18.5
20" 15 15.5 16 16.5 17 17.5 18 18.5 19

6
Seat Height - Axle Diagram References
With the correct configuration determined from the charts above, use the diagrams below to identify axle
bar angles, axle positions and the two type of axles.
Up Orientation Down Orientation
Level A Level ALevel B Level B
Axle Plate
Position
(Upper bolt of
axle plate
position)
1
2
3
QR Axle Configuration Threaded Axle Configuration
*Bolt and lock washer replace QR Axle when securing wheel.

7
Seat Height - Fork Diagram Reference
With the correct configuration determined from the charts above, use the diagrams below to identify the
different fork sizes and the fork holes.
5” Standard 6” Standard 6” Wide 7” Standard 7” Wide
1
2
3
4
1
2
3
4
6
5
1
2
3
4
1
2
3
4
5
1
2
3
4
5
Fork
Width
Fork
Height
Fork Height Width
5" Standard 4.7" 2.1"
6" Standard 5.7" 2.1"
6" Wide 5.8" 2.9"
7" Standard 7.0" 2.1"
7" Wide 7.0" 2.9"

8
Caster Construction
The caster assembly is shown below. Securing the caster wheel to the fork requires two 13mm wrenches.
Securing the stem to the fork requires an 19mm wrench.
Caster Adjustment
1. Adjusting Caster Position
a. Using a 5mm Allen wrench and a 10mm wrench, loosen screws (A) and slide adjuster up or down.
b. Retighten screws. Repeat for opposite side of chair.
Standard
Stem
Assembly
Tall Stem
Assembly
Use 100792 (Caster Spacer, D8
X D12 X 10mm) on 1” and 1.5”
wide casters with standard
forks. Use 001246 (Caster
Spacer, 6x2 Poly) on 6X2 caster
with wide forks. Use no spacers
for 8X2 casters with wide forks.
Use 101829
(M8X1.25X65) with
standard forks. Use
101831 (M8X1.25X80)
with wide forks.
A
90 - 92°

9
Caster Adjustment
3. Adjusting Caster Height
a. Remove hex bolt (A) and nut (C) using 13mm wrenches.
b. Remove caster wheel (E) and spacers (D).
c. Feed hex bolt (A) through desired hole in one side of the caster fork (B).
d. Slide one spacer (D) over hex bolt (A).
e. Slide caster wheel (E) over hex bolt (A) and push hex bolt through caster wheel, flush with the
opposite side of the caster wheel bearing.
f. Slide second spacer (D) between caster wheel (E) and caster fork (B), aligning spacer with bearing
hole.
g. Push hex bolt (A) through spacer (D) and hole in opposite side of caster fork (B).
h. Retighten hex bolt (A) with nut (C).
i. Repeat for opposite side of chair. Ensure both casters are set up identically.
NOTE: 8X2 casters with wide forks will have no spacer.
A
C
D
D
E
B

10
Chair Width
Non-Folding Frame
NOTE: Adjusting the width also affects any seating, seat pan, rigidizer handle and rigidizer bar that
may be present. See those corresponding sections, if applicable, for instructions on how to
disassemble.
1. The crosstubes (B) are detached from the crosstube extensions (D) by removing the two bolts (A), four
washers (C) and two nuts (E) using two 10mm wrenches.
2. The crosstubes (B) are detached from each other by removing the bolt (F), two washers (G), two
saddles (H) and the nut (I) using two 13mm wrenches.
3. Reassemble the crosstube assembly using the diagrams and table below to achieve the desired width
configuration.
A
BC
D
C
E
F
G
H
H
D
C
E
C
B
A
I
G
A
B
C
A
B
C
A B C
Configuration Hole Set to Align Cross Tube
Cross Tube
Extension
10W Small A
11W Small B
12W Small C
12W Medium A
13W Medium B
14W Medium C
14W Large A
15W Large B
16W Large C
16W XL A
17W XL B
18W XL C
XL
XL
Small
Small
Medium
Medium
Large
Large
Always use the 1st and
3rd holes to attach for
Non-Folding Frame. Do
not use center hole.
A
B
C

11
Chair Width
Folding Frame
NOTE: Adjusting the width also affects any seating, seat pan, rigidizer handle and rigidizer bar that
may be present. See those corresponding sections, if applicable, for instructions on how to
disassemble.
1. The crosstubes (M) are detached from the crosstube extensions (C), lift strap (G) and crosstube hinges
(E) by removing the bolt (A), four washers (B, D,H), hinge spacer (F) and nut (I) using two 10mm
wrenches.
2. The crosstubes (M) are detached from each other by removing the bolt (J), two washers (D), two
saddles (K) and the nut (L) using two 13mm wrenches.
3. Reassemble the crosstube assembly using the diagrams and table below to achieve the desired width
configuration.
A
B
C
D
E
D
F
G
HI
J
D
K
K
D
L
M
A
BC
A
B
C
A
B
C
BCABC
Configuration
Hole
Set to
Align
Cross
Tube
Cross
Tube
Hinge
Cross
Tube
Extension
10W Small A
11W Small B
12W Small C
12W Medium A
13W Medium B
14W Medium C
14W Large A
15W Large B
16W Large C
16W XL A
17W XL B
18W XL C
Small
Medium
Large
XL
Small
Medium
Large
XL
Small
Medium
Large
XL
Folding frame will only have
one bolt passing through the
upper portion of the crosstube,
crosstube extensions,
crosstube hinge and lift strap.
A

12
Seat Depth
Use the chart and diagram below to set chair in desired seat depth. A 4mm Allen wrench and a 10mm
wrench are needed for the hardware during this procedure.
*N/A with offset hangers or contracture footrest
Hole A Alignment
Frame Size Hole Location
3456
Extra Short 12D 13D 14D 15D*
Short 14D 15D 16D 17D
Medium 16D 17D 18D 19D
Long 18D 19D 20D
Component Hole Locations
Components Extra Short Frame Short, Medium & Long
12D 13D 14D 15D* All Depths
Callout B, F, C & E 2 2 2 2 6
Callout D Hole A Hole A Hole A Not
Needed Not Needed
Callout A, C & E 1 1 1 6 2
Extra Short Configurations
Short, Medium & Long Configurations
D
123456
Hole A
(Rearmost hole in
front seat tube)
A
B
C
E
F

13
Hand Tilt
1. Install hand trigger onto back post using a Phillips screwdriver and the diagram below.
2. Route cable as shown below. Install cable clips (A) along back post to keep cable in place.
3. Attach end of cable to mechlock as shown below. The cable adjuster (B) on the end of the cable is
loosened to attach cable in the brackets. Once attached, adjust the cable by turning the adjuster (B).
Secure cable by also installing E-Clip (A).
Angle Adjustable Push Handle Stroller
A
A
B
A
A
Dual Hand Tilt Single Hand Tilt
NOTE: In the X-S
Conguration, the
mechlocks are behind the
crosstubes.
A
B

14
Foot Tilt
1. Install the two cable ends into the cable nut plate (B).
2. Insert the barrel ends of the cables into the pockets of the pedal (C).
3. Close the housing (A) around the foot pedal/cable assembly.
4. Install the foot pedal/cable assembly to the inside frame of the chair with two bolts (A), two lock
washers (B), foot tilt mount (C) and saddle (D) using two 5mm Allen wrenches.
NOTE: A foot tilt mount can be installed on the left or right side of the chair, based on user
preference.
A
B
C
A
A
B
C
B
D
A

15
Foot Tilt
5. Route the cables as shown below.
NOTE: The cables are routed below the folding cross braces, as shown below, with short, medium
and long configurations.
6. Attach end of cable to mechlock as shown below. The cable adjuster (B) on the end of the cable is
loosened to attach cable in the brackets. Once attached, adjust the cable by turning the adjuster (B).
Secure cable by also installing E-Clip (A).
7. Adjust both cables after installation by turning the threaded adjusters (A). Lock into place by tightening
the jam nut (B). Test the foot tilt operation, with no one in the chair, and adjust further if needed.
A
B
AB
B
A

16
Transit
See the diagrams below for transit system installation. A 4mm Allen wrench and a 10mm wrench are
needed for the folding back hardware. A 4mm Allen wrench, 5mm Allen wrench, 10mm wrench and 13mm
wrench are needed for the standard back hardware. To install the front brackets, use a 5mm Allen wrench
and a 10mm wrench.
Showing Stroller Handle, Height Adjustable and Fixed
Height, Adjustable Push Handle Transit Back Plate Showing Reclining Back Transit Back Plate
Front Transit Plate
Transit hook and WC-19 labels must be attached as shown.

17
Anti-Tip
1. Install the anti-tip receiver (C) to the axle plate with two bolts (A) and two lock washers (B) using a 5mm
Allen wrench.
NOTE: The receiver is installed in the up position, as shown below, on 12" and 16" configurations.
The receiver is installed in the down position, as shown below, on the 20" configuration.
2. Install the anti-tip assembly into the receiver by pushing the upper indent buttons (D) down and sliding
the assembly into the receiver. The indent buttons will lock into place when properly aligned in the
receiver holes.
NOTE: The height of the anti-tip can be changed by pushing the lower indent button (D) down and
sliding the anti-tip tube up or down. Ensure the indent button locks into one of the tube holes. The
anti-tip should be set to achieve a 1.5" - 2" gap between between the anti-tip wheel and the ground.
A
B
C
DD
D
"21
"61
"02
Receiver Up
Receiver Up
Receiver Down

18
Back Height
Reclining Backrest - Available with Short (22”) and
Tall (26”) back canes.
Height Adjustable Backrest - Available in Short
(18”-25”) and Tall (20”-27”).
Stroller Handle Backrest - Available with Short (20”)
and Tall (24”) back canes.
Fixed Height Adjustable Handle Backrest -
Available with Short (22”) and Tall (26”) back canes.

19
Back Height
The Adjustable Height backrest is adjustable using an 8mm wrench. See the diagram below.
Back Post Height Range Back Height
Stroller Handle Back Post Short 20"
Tall 24"
Fixed Height Adjustable Handle Backrest Short 22"
Tall 26"
Height Adjustable Backrest Short 18" 19" 20" 21" 22" 23" 24" 25"
Tall 20" 21" 22" 23" 24" 25" 26" 27"
Reclining Backrest Short 22"
Tall 26"
18” 20”
19” 21”
20” 22”
21” 23”
22” 24”
23” 25”
24” 26”
25” 27”