Drive Medical ENIGMA SD2 User guide

Enigma SD2 Wheelchair Owners Handbook
Page 1 of 20 Part Code: Z15997 (Rev A)
ENIGMA SD2 WHEELCHAIR

Enigma SD2 Wheelchair Owners Handbook
Page 2 of 20 Part Code: Z15997 (Rev A)
1 . C O N T E N T S
1. Contents
2. Introduction
3. Parts Description
4. Adjustment Features
5. Folding Back Mechanism
6. Disassembly and Folding
7. Using the Stepper Tube
8. Brake Operation
9. Lap Belt Operation
10. Using the Wheelchair in a
Vehicle.
11. Tyre Pressure & Inflation
12. Installing a Powerpack
13. Elevating Legrests &
Amputee Pads (Optional)
14. Care and Maintenance
15. Specification
16. Warranty
2 . I N T R O D U C T I O N
The Enigma SD2 wheelchair is designed for occasional or
frequent use, and can be used indoors and outdoors. The
wheelchair is designed for a single user of up to 135kg (21
stone). The frame can accommodate either 24” self propel
wheels or 12½” transit wheels.
The wheelchair can be manually moved in forward or reverse
and is propelled either by the wheelchair user or a carer,
depending upon the model of wheelchair in use.
All Enigma wheelchairs are manufactured to the highest quality
and are CE compliant. Drive Medical is an ISO 9001 and ISO
13485 certified medical device manufacturer.

Enigma SD2 Wheelchair Owners Handbook
Page 3 of 20 Part Code: Z15997 (Rev A)
3 . P A R T S D E S C R I P T I O N
Above shows a transit model (SD2TS18).
This feature 12½” transit rear wheels
and attendant cable brakes.

Enigma SD2 Wheelchair Owners Handbook
Page 4 of 20 Part Code: Z15997 (Rev A)
Above shows a self-propel model (SD2SP18)
This features 24” rear wheels with handrims.
4 . A D J U S T M E N T F E A T U R E S
A number of adjustments may be made to the wheelchair to suit
a user’s individual requirements. Some standard tools are
required to make some of the adjustments.

Enigma SD2 Wheelchair Owners Handbook
Page 5 of 20 Part Code: Z15997 (Rev A)
i. Rear wheel
Self Propel Wheel
Caution: Ensure
fasteners are secure
after adjustment
Use the axle bracket (left) to alter
position of the rear wheel.
For vertical adjustment, remove
fasteners then reposition the axle
plate as required.
Replace fasteners. For horizontal
adjustment, remove the axle boss
and reposition in one of the 3
holes in the axle plate.
Transit wheel
(horizontal adjustment
only)
Remove the fasteners and
reposition axle bracket (not
shown) as required. Replace the
fasteners.
ii. Brake Adjustment (do not alter any other bolts on brake)
Adjustment is made to the brake by
loosening the Allen key bolt heads on
the brake clamp and by sliding the
brake unit along the frame. The
brakes will have to be readjusted if
the rear wheel position has been
altered.

Enigma SD2 Wheelchair Owners Handbook
Page 6 of 20 Part Code: Z15997 (Rev A)
iii. Upholstery Adjustment
This wheelchair features a tension adjustable back and
seat canvas. To adjust the tension, first remove the
cushion and then adjust the Velcro straps. Ensure the
straps are not too taut as this can damage the wheelchair.
iv. Leg rest adjustment
The leg rest height and footplate angle can be adjusted.
To alter the leg rest height, remove the two Allen head bolt
(the 2 bolts are shown by ‘B’ in the diagram on page 8).
Reposition as required, and then resecure fasteners. To
alter the footplate angle, loosen the allen head bolt on the
plastic footplate. Reposition as required then retighten bolt.
v. Back post height and angle adjustment
Angle adjustment: To adjust the back
post angle, remove nut and bolt (A) then
rotate the post to the required angle.
Reattach the nut & bolt to secure using
one of the predrilled holes in the bracket.
Height adjustment: To adjust the back
post height, remove nut and bolt (B)
then reposition the post at the required
height. Reattach the nut and bolt to
secure, using one of the predrilled holes
in the back post.

Enigma SD2 Wheelchair Owners Handbook
Page 7 of 20 Part Code: Z15997 (Rev A)
vi. Armrest adjustments
For comfort the armrest will flip
up, remove and has a height
adjustable arm pad.
To flip up the armrest, lift up
the front of the armrest whilst
pushing flipper (A).
To adjust the height of the
armpad, press button (B) on
the holder whilst adjusting the
pad height.
Press the button (B) on the
armpad to slide the armpad
forwards and backwards.
To remove the armrest, pull
plunger (C) whilst pulling the
armrest from the receiver.
vii. Anti-tip wheel height
Pull the washer (D) whilst
adjusting the height of the anti-
tip wheel.

Enigma SD2 Wheelchair Owners Handbook
Page 8 of 20 Part Code: Z15997 (Rev A)
Please note that adjusting the wheelchair will change its stability.
Different configurations will affect the stability of the wheelchair.
The wheelchair has been statically tested in its least stable
configuration at 10º (18%). It is therefore recommended that the
wheelchair is not used on gradients steeper than 10º (18%).
5 . H A L F F O L D B A C K M E C H A N I S M
The wheelchair has a half fold back
mechanism which has been
designed so that the wheelchair will
fit in to small spaces by reducing
the wheelchair height.
To fold the back, push in the black
lever using your thumb, whilst
pulling the push handle down. Then
repeat for the other side.
6 . D I S A S S E M B L Y A N D F O L D I N G
This wheelchair has a number of quick release components and
the wheelchair frame is easily foldable to facilitate a light carry
weight and minimize storage space.

Enigma SD2 Wheelchair Owners Handbook
Page 9 of 20 Part Code: Z15997 (Rev A)
Leg Rests. To attach the leg rest,
slide the leg rest on to the frame
as shown in the diagram. Then
swing the leg rest until it locks in
position.
To swing the leg rest, pull up the
looped catch (A) and swing the
leg rest in or out. When the leg
rest is swung out approximately
45º it may be removed.
Armrests - Please see previous section on Armrest
Adjustments (6.vi.) for details on removing the armrests.
Rear Wheels.
The rear wheels on the wheelchair can be easily removed for
transportation or storage. With one hand holding up the
wheelchair frame, the other hand should grip the centre of the
wheel, push the centre pin inwards and in the same movement
pull the wheel hub away from the wheel. To put the wheels back
the procedure should be reversed. Check that the wheel is
securely fastened before use by pulling the wheel and ensuring
there is no sideways movement.

Enigma SD2 Wheelchair Owners Handbook
Page 10 of 20 Part Code: Z15997 (Rev A)
Folding the wheelchair
The Enigma wheelchair has been designed with an easy fold
mechanism. To fold the chair, ensure that the leg rests are
locked in position and that the plastic footrests are flipped up.
Remove the seat and back cushions and remove the quick
release components if required.
Pull up in the centre of the front and rear straps of the tension
adjustable seat canvas and the wheelchair will naturally fold up.