NEWVSI TECHNICAL MANUAL – DIAGNOSTICS PG DRIVES TECHNOLOGY
56 SK80151-1
4.1 General Inspection
Make sure all connectors are securely mated.
• Check the condition of all cables and connectors for damage.
• Check the thin rubber gaiter or boot around the base of the joystick shaft for damage. Check visually only, do
not handle the gaiter.
• Make sure that all components of the controller are securely mounted.
• Do not over-tighten any securing screws.
4.2 Brake Test
These tests should be carried out on a level floor with at least one meter clear space around the wheelchair.
• Switch on the controller.
• Check the TruCharge display remains on, or flashes slowly, after one second.
• Push the joystick slowly forwards until you hear the parking brakes operate. The wheelchair may start to move.
• Immediately release the joystick. You must be able to hear each parking brake operate within 2 seconds.
• Repeat the test a further three times, pushing the joystick slowly backwards, left and right.
4.3 Drive Test
With the maximum speed control in the minimum position, drive the wheelchair in all directions, ensuring the drive is comfortable
and easy to control for the user.
Repeat the above but with the speed control set to maximum.
4.4 Gradient Test
Before carrying out this test ensure another person is present to prevent the wheelchair from tipping backwards.
Drive the wheelchair forwards up its maximum rated gradient. While on the gradient release the joystick and ensure the
wheelchair comes to rest and the brakes are applied without the front wheels lifting of the ground.
Deflect the joystick forwards and continue driving up the slope. Ensure the pick up is smooth and positive.
Stop the wheelchair and reverse down the gradient. While on the gradient release the joystick and ensure the wheelchair comes
to rest and the brakes are applied without the front wheels lifting of the ground.
5 Servicing of Defective Units
There are no serviceable parts, in any of the PGDT controllers. Consequently, any defective units must be returned to PGDT or a
PGDT approved service organization for repair.
Any replacement work carried out without the wheelchair manufacturer’s permission will invalidate the controller’s warranty.
Opening or making any unauthorized adjustments or modifications to a controller or its components will invalidate any warranty
and may result in hazards to the vehicle user, and is strictly forbidden.
PGDT accept no liability for losses of any kind arising from unauthorized opening, adjustments or
modifications to a any component of a controller.
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