Castors; Brakes - Invacare Zipper 2 User Manual

- Note: It may be necessary to use one or two tyre removal tools (not
supplied).
Warning
Applicable only to chairs fitted with 24" wheels.
These chairs are assembled with the wheels set in the rearward
position. It is important that the chairs are not re-configured with the
wheels set in the "forward" position; this would allow the footrest
hangers to disengage the brake levers when swung away from their
locked position, causing the chair to become unstable.
Handrims
- The handrims are used by the user to drive the wheelchair.
- NB: As the handrims are in contact with your hands, make sure that
they are not damaged and that the surface has no parts which might
cause injury to the hands.
- Adjustment: No adjustment is required for the handrims.
Axles
Photographs 10 and 11
- The axles link the back wheels to the chassis.
They are fixed or quick releasing.
- Quick release wheels
Removal: Push on the quick release button
head with your finger and pull the wheel
towards the outside of the chair.
- Assembly: Push on the quick release button
head with your finger and locate axle though the
axle bush, making sure that the axles are
secured (no axial movement).
- Fixed wheels.
No adjusment is required, however, check on a
weekly basis that the axle / nut are secure.
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10. Castors

Front wheels
- The front wheels have a diameter of either 190mm or 125 mm
available in solid puncture-proof tyres only.
No adjustment is necessary for the front wheels.
Forks
Photograph 12
- The fork connects the chassis and the wheel.
- Adjustment: The
adjustment. Check that the fork rotates freely.
11. Manual brakes
Photograph 13

Brakes

- The manual brakes are used to immobilise the wheelchair in a
stationary position. They are not intended for slowing down and should
not be used when the wheelchair is moving.
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They should be applied together.
- Use: The brakes are operated by moving the
brake handle (A) towards the front of the
wheelchair. When the brakes are applied, the
wheelchair should resist movement.
- Adjustment: It may be necessary to adjust the
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brakes after repairing a puncture or because of wear on the pneumatic
or solid tyre. Slacken clamp screws and adjust the brake assembly to
achieve adequate braking. Tighten the clamp screws firmly after
adjustment.
- Note: The brakes are fitted in pairs to the wheelchair. When adjusting
or removing, remember that there is one brake for the right hand side
and another for the left hand side.
12
forks do not require
A
13
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