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Quickie Helium Manual

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10
ENGLISH
Helium Rev.I
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
suspension system.
(see next page).
Setting the toe-in/toe-out to zero (using the factory fitted
adjuster)
Loosen the Allen screws (G), (2 per side), that
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 camber adapter in the axle tube protrude
outside the axle tube clamp. 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 per side) which hold the axle tube on both sides of the axle
tube.
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 wrench
surfaces are exactly 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 camber adapter in the axle tube protrude
outside the axle tube clamp. 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, make one change at a
time and write down each 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!
Under no circumstances, loosen the screw connection between
the axle clamp and the shock absorber.
3. Maintenance
The maintenance requirements listed below should be followed
along with general wheelchair maintenance shown 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
… 10 …


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