Ki Mobility Ethos User manual

1
This technical manual is designed to aid in the different procedures that may be
needed for the Ethos 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 Ethos Owner Manual. The owner manuals
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, 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. Calf Strap Mount Installation and Adjustment ................................................ 4
C. T-Arm Installation and Adjustment ................................................................. 5
D. Swing Away Arm Installation and Adjustment ................................................ 7
E. Seat Frame Replacement ............................................................................... 9
F. Base Frame Replacement............................................................................... 12
G. ISO Tech Polymer Replacement..................................................................... 14
H. Highlight Kit..................................................................................................... 17
I. Center of Gravity (COG) and Caster Position ................................................. 18
J. Changing Seat Pan ......................................................................................... 21
K. Changing Seat Sling ....................................................................................... 21
L. Installing and Adjusting Anti-Tips ................................................................... 22
M. Camber and Camber Tube ............................................................................. 27
N. Setting Toe to Zero ......................................................................................... 33
O. Caster Adjustment .......................................................................................... 34
P. Caster Wheels and Forks................................................................................ 37
Q. Backrest.......................................................................................................... 38
R. Side Guard ...................................................................................................... 41
S. Handrim Configurations .................................................................................. 43
T. Handrim Construction..................................................................................... 44
U. Front and Rear Seat Height ............................................................................ 45
V. Installing Transit .............................................................................................. 46
Table of Contents

3
Tools
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
Calf Strap Mount Installation and Adjustment
1. Install the calf strap mount clamps (A) onto the seat frame. With the screws removed, the clamps will
open far enough to slide over the frame tube.
2. Secure the calf strap mount clamps in place by retightening the screws with a #2 Phillips screwdriver.
Set to the height configuration needed for the chair user.
3. Install the calf strap with velcro (A) onto the clamps.
A
A
A

5
T-Arm Installation and Adjustment
NOTE: Remove any seat upholstery and/or cushions before beginning.
1. Install the T-Arm receiver (A) and clamp (B) onto the seat frame with two washers (C) and two bolts (D)
using a 5mm Allen wrench. Ensure the detents on the clamp (B) align with the indents on the frame as
you tighten.
2. Install the T-Arm into the bracket until the lever (A) latches and locks into place. Repeat on opposite
side.
3. Adjust the height of the T-Arm post (A), if needed, by releasing the latch (B) and then sliding the post to
desired height. Secure in place by reengaging the latch.
Two clamps lock
together at top by
sliding round edge
into the groove.
A
BC
D
A
A
B

6
T-Arm Installation and Adjustment
4. To rotate the arm pad (A), release the T-Arm post latch (B) and lift the post out. Rotate the post and
reinstall. Secure in place by reengaging the latch.
5. To remove the T-Arm assembly, pull the lever (A) up and lift the T-Arm assembly up and out of bracket.
NOTE: When your seat upholstery is reinstalled, spacers are used with each screw to allow
clearance for the T-Arm Bracket. See image below.
A
B
A
Spacers

7
Swing Away Arm Installation and Adjustment
1. Remove the backrest plate (D) from the frame by removing two bolts (B), two washers (C), saddle back
(F), two saddles (G), two washers (H) and two nuts (I) using a 4mm Allen wrench and a 10mm wrench.
Remove backrest plate from back cane by removing shoulder bolt (A), two saddles (E), washer (J) and
nut (K) using a 5mm Allen wrench and a 10mm wrench. Repeat on opposite side.
2. Install the swing away bracket (E) in between the backrest plate (D) and frame with two bolts (B), two
washers (C), new saddle back (G), two saddles (H), two washers (I) and two nuts (J) using a 4mm Allen
wrench and a 10mm wrench. Secure backrest plate to back cane with shoulder bolt (A), two saddles
(F), washer (K), nut (L) using a 5mm Allen wrench and a 10mm wrench. Repeat on opposite side.
A
B
B
C
C
D
E
F
E
G
G
H
H
I
I
JK
A
B
B
C
C
D
E
F
G
H
H
I
F
I
J
J
KL

8
Swing Away Arm Installation and Adjustment
3. Install each swing away armrest into the mount plate opening.
4. To adjust the height of the swing away arm, remove two screws (A) and insert (B) using two 4mm Allen
wrenches. There are two available swing away arm heights available - short (can be adjusted 8.5" to
10.5") and tall (can be adjusted 10.5" to 12.5"). Reinstall hardware into correct hole for your desired
height.
A
A
A
B
Low
Medium
High

9
Seat Frame Replacement
NOTE: This section will go from complete chair to replacing the whole seat frame. Some sections
can be skipped depending on how many assemblies you are replacing during the process.
1. Remove hardware that attaches backrest to seat frame. Repeat on opposite side and remove backrest
assembly.
2. Loosen, but do not remove, the seat frame clamp bolts, four in total on the chair, using a 4mm Allen
wrench. Lift seat frame up and off.
A
A
Lift seat frame up and off

10
Seat Frame Replacement
3. Remove any remaining parts or accessories (such as underseat pouch, wheel locks, armrest clamps,
etc.) from the seat frame that you will be transferring to the new seat frame.
4. Transfer parts and/or accessories that were removed in step 3 to the new seat frame.
5. Set seat frame onto seat frame clamps. Slide seat frame along clamps to the position of desired seat
depth. Secure in place by tightening the four seat frame clamp bolts (A) using a 4mm Allen wrench.
Ensure detents on clamps align with the indents on the frame as you move the seat frame and tighten.
A
A

11
Seat Frame Replacement
6. Reinstall the backrest assembly in the same position as before or a new position if desired. Reinstall
with two bolts, two small washers, two saddles, two large washers and two nuts per bracket using a
5mm Allen wrench and a 10mm wrench. Repeat on opposite side.
AB
CDE

12
Base Frame Replacement
NOTE: This section will go from complete chair to replacing the base frame. Some sections can be
skipped depending on how many assemblies you are replacing during the process.
1. Remove wheels.
2. Loosen the four seat frame clamp bolts (A) with a 4mm Allen wrench until the seat frame can be
removed from the base frame.
3. Remove the iso vertical tube assemblies from the base frame by removing two screws (A) and a barrel
nut (B) per assembly using two 3mm Allen wrenches.
AAAA
AB A

13
Base Frame Replacement
4. Remove front lower base frame assembly by removing two screws and a barrel nut per side using two
3mm Allen wrenches.
5. If needed, remove the camber tube (C) by removing two camber clips (B) first. Next, loosen the camber
tube clamp screws (A) using a 5mm Allen wrench and slide the camber tube out one side.
6. Reverse steps 1 - 5 to reinstall new base frame with saved parts from earlier.
NOTE: Ensure lower rear base frame is parallel with the ground during reinstallation. Adjust the
front and rear seat heights through the tower system.
A
B
A
B
C

14
ISO Tech Polymer Replacement
1. Remove bolt (A), washer (B) and nut (C) from the front ISO Tech Tower using a 4mm Allen wrench and a
10mm wrench. Repeat on opposite front ISO Tech Tower. Once the bolt is removed from both front ISO
Tech Towers the seat can hinge backwards on the rear ISO Tech Towers. The seat frame can now be
lifted upwards enough to make room for removal in the next steps.
ABC
DD
E

15
ISO Tech Polymer Replacement
2. Push the elastomers (A) that you are replacing, out of the tower and push in new elastomers. Ensure
edges of elastomer line up with the groove inside the tower. See the chart below to help determine
which elastomers suit the type of ride you desire, soft or firm, based on the user weight and the chair
center of gravity. The elastomer part number and color are called out in the chart. See image below
chart for illustration.
Soft Setup
User Weight Center of Gravity
-1.5 to 1 1.25 to 2 2.25 to 3 3.25 to 4.25
100-120 lb (45-54 kg) 003860 (BLUE) 003859 (RED) 003859 (RED) 003859 (RED)
121-165 lb (55-75 kg) 004544 (BLACK) 003860 (BLUE) 003860 (BLUE) 003860 (BLUE)
166-209 lb (75-95 kg) 004544 (BLACK) 004544 (BLACK) 004544 (BLACK) 004544 (BLACK)
210-275 lb (95-125 kg) 004545 (GREEN) 004544 (BLACK) 004544 (BLACK) 004544 (BLACK)
Firm Setup
User Weight Center of Gravity
-1.5 to 1 1.25 to 2 2.25 to 3 3.25 to 4.25
100-120 lb (45-54 kg) 004544 (BLACK) 003860 (BLUE) 003860 (BLUE) 003860 (BLUE)
121-165 lb (55-75 kg) 004545 (GREEN) 004544 (BLACK) 004544 (BLACK) 004544 (BLACK)
166-209 lb (75-95 kg) 004545 (GREEN) 004545 (GREEN) 004545 (GREEN) 004545 (GREEN)
210-275 lb (95-125 kg) 004545 (GREEN) 004545 (GREEN) 004545 (GREEN) 004545 (GREEN)
A

16
ISO Tech Polymer Replacement
3. Reinstall the two washers (A) and insert (B) and slide the ISO Tech Tower back over to keep hardware in
place. Reinstall bolt (C), washer (D) and nut (E) using a 4mm Allen wrench and a 10mm wrench to
secure ISO Tech Tower in place. Repeat on opposite ISO Tech Tower.
4. Repeat the steps, if needed, on the rear ISO Tech Towers.
CDE
AA
B

17
Highlight Kit
This section will show to replace/switch the bushings that are a part of the highlight kits.
Vertical Bushings
1. The four vertical bushings (A) are accessed by removing two screws and a barrel nut on the ISO tech
towers using two 3mm Allen wrenches.
Base Frame Bushings
1. The base frame bushings (A) are accessed by removing the two screws and a barrel nut on the base
frame using two 3mm Allen wrenches.
Footrest Bushings
1. The footrest bushings (A) are accessed by removing the two set screws and the two screw plates using
a 4mm Allen wrench.
A
A
A
A
A
A

18
Center of Gravity (COG) and Caster Position
The Center of Gravity (COG) and Caster Position are related to each other. The process of making both
adjustments is demonstrated below. See the diagrams and charts below to determine the holes used to
reach desired configuration. See the diagrams on page 19 for the actual process of adjusting/switching the
parts involved.
NOTE: There are 4" of possible adjustment on the front base frame in 1/4" increments (see image on
next page). It can be adjusted to correspond with Center of Gravity (COG) or it can be done
separately to control the size of the wheel base. There are 4" of possible adjustment on the caster
position in 1/2 increments.
Default Center of Gravity Range
CG Preset Default Range
0" to 1.5" +3" to -1"
1.75" to 3" +2" to -2"
3.25" to 4.25" +1" to -3"
Depth Range Center of Gravity Standard Position Setup
0" .25" .5" .75" 1" 1.25" 1.5" 1.75" 2" 2.25" 2.5" 2.75" 3" 3.25" 3.5" 3.75" 4" 4.25"
14"
+1 to -3
+2 to -2
+3 to -1
+4 to 0
15"
+1 to -3
+2 to -2
+3 to -1
+4 to 0
16"
17"
18"
+1 to -3
+2 to -2
+3 to -1
+4 to 0
19"
20"
+1 to -3
+2 to -2
+3 to -1
+4 to 0

19
Center of Gravity (COG) and Caster Position
Standard
Rear Base
Frame
1A 1B
Dimension A - Distance from front of
back post to center of rear axle.
Dimension
A
Amputee
Rear Base
Frame
3A
2A 2B
2C
2D 2E Front Base
Frame
Standard
Rear Base
Frame - Up
Standard
Rear Base
Frame - Down
1A 1B
1A 1B