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Prest valve also has an additional small top, which must be loosened before pumping.
•
After identifying the valve, prepare the pump designed to valve type.
•
Most of the new pumps are equipped to service both Prest valve and Schrader. Many of
them let to reverse the tip. Smaller hole is Prest valve, Schrader valve greater. If the
pump does not support Prest, you will need to buy yourself the "adapter Prest", which is
available at any bike store.
•
At this point, if the wheel is provided with a valve Prest, it will be necessary to unscrew
the top located on the vent. It is a small top, which can be unscrewed with fingers. When
doing this, the top should move upwards. Then valve is considered open.
•
Then remove the plastic top from the valve and set it aside in a safe place. It is important
to not lose it, because the valves will get dirt, leading to difficulties in pumping and rapid
air loss.
•
Place the nozzle of the pump to the valve and check if it stick properly. If it is needed,
push the pump to the valve to make sure that the air does not escape to the sides.
•
If the pump has a lever with clamp at the nozzle, tighten it. If the nozzle of the pump and
valve have a threaded tip, screw them together. As a result, air will be streamed directly
to the inner tube and the nozzle cannot be detached from the valve.
•
At the beginning of pumping the pressure in tyres should be checked at some points.
Check tire pressure with your fingers at the end of the tread. If it is possible, make only a
millimetre indentation. It means that the tire has enough air. If necessary, continue
pumping.
•
After pumping, remove or unscrew the nozzle from the valve outlet while compressing it's ends
by thumb. It is recommended to do this quick enough in order to not lose too much air.
•
For Prest valve, tighten previously loosened additional small top.
•
Screw the plastic top on the valve.
PRESSURE IN WHEELS AND BRAKING POWER
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Pressure in wheels should be select to the user weight and then with assistance caregiver check
the operation of the parking brakes (wheelchair with user facing toward the fall, cannot roll on a
plane with a slope of 15%.)
•
After all the adjustments, be sure to thoroughly check all connections.
COMMENTS
•
Observe proper tire inflation level with the information provided by the manufacturer on the
sides of the tire.
•
Use a pump with a pressure gauge or manual pump cycling.
EVERYDAY USE AND MAINTANCE
•
Clean the upholstery and frame with a moist cloth, without the addition of detergents and
other similar chemicals.
•
Systematically remove the dirt from the movable elements of the wheelchair (screws,
resistance mechanisms).
•
Keep clean all wheelchair elements to save functional parameters of the product.
•
Storing in rooms of very high humidity (baths, laundries etc.) or in the open air, in the
combination with the lack of hygiene will cause the fast loss of functional and aesthetic
parameters.
•
Do not expose the wheelchair on to extreme weather conditions (rain, snow very strong sun),
because certain parts can change colour.
