ENGLISH
11
Krypton R Rev.D
Suspension System
WARNING!
Rear suspension can affect the stability of the wheelchair. To
avoid a fall, use a spotter and/or anti-tip tubes when becoming
familiar with new equipment.
1. Tuning the 4-Link Rear Suspension
a. to stiffen the suspension, turn the spring preload adjustor (E)
clockwise (looking up at the suspension system from
underneath the wheelchair).
b. to soften the suspension, turn the spring preload adjustor (E)
counter-clockwise (looking up at the suspension system from
underneath the wheelchair).
2. Alignment of Suspension Link Arms
Do not adjust the link arms (F, Fig. 4.10). These are set at the
factory to ensure proper tracking and performance of the 4-Link
Rear Suspension system.
(see next page).
Setting the toe-in/toe-out to zero (with the adjusting device
installed in the factory)
Loosen the Allen screws (G) (2 on each side)
which are used to secure the axle tube on both sides. Observe
the ball in the transparent adjuster in the centre of the axle tube,
then turn the axle tube (C), until the ball is exactly centred at the
lowest point of the adjuster. The toe is now set at zero (Fig. 4.7,
4.10).
Before re-tightening the screws (G), check
that the flat surfaces of the wheel camber adapter in the axle
tube protrude from the clamp of the axle tube. The end of the
cylindrical camber adapter should be flush with the end of the
axle tube. Tighten the screws to a torque of 7 Nm.
Setting the toe-in/toe-out to zero (using a 90° setting gauge)
Place the entire wheelchair on a flat
horizontal table or ground surface. Loosen the Allen screws (G)
(2 on each side) which are used to secure the axle tube on both
sides.
Then put the setting gauge at an angle of exactly 90° (e.g. a
carpenter's square) on the flat surfaces of the camber adapter
(D) (Fig. 4.8, Fig. 4.9). Then turn the axle tube until the surfaces
of the wrench are entirely parallel to the upper surface of the
setting gauge (Fig. 4.8).
Before re-tightening the screws (G), check
that the flat surfaces of the wheel camber adapter in the axle
tube protrude from the clamp of the axle tube. The end of the
cylindrical camber adapter should be flush with the end of the
axle tube. Tighten the screws to a torque of 7 Nm.
CAUTION!
When turning the 4-Link Rear Suspension, always make one
change at time and write down the change. This takes patience,
but allows you to understand how each change affects the ride of
the wheelchair in conjunction with rear suspension.
NOTE –
The lower shock mount is designed to have a loose feel,
this is by design to allow for proper suspension travel.
CAUTION!
The screw connection between the axle clamp and the shock
absorber should never be loosened.
3. Maintenance
The following maintenance work must be carried out, along with
the general maintenance tasks described in section 6.0.
a. do not apply lubrication to shock end bushings or coils.
b. you can apply lubrication to the link ends after cleaning with a
mild soap and soft
brush.
c. use a soft brush to clear any dirt or debris from coil system.
d. never use a high-powered washer for cleaning the 4-Link Rear
Suspension.
Fig. 4.8
D
Fig. 4.7
BALL
C
B
Fig. 4.10
H
I
G
E
F
Fig. 4.9
PARALLEL
D
C
Summary of Contents for Quickie Krypton R
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