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SECTION 4: Maintenance Checks
4.1 Open the powerchair, all movements should be free throughout the folding range.
4.1.1 Examine the seat and backrest fabrics for wear, damage or staining.
Examine retaining screws for tightness and general condition. (See Section 6)
4.1.2 Examine armrest pads for wear or damage and tightness of attachment screws.
(See Section 7)
4.1.3 Examine armrest locking assembly for wear and tear and that each armrest is securely
retained. (See Section 7)
4.1.4 Examine footrest hanger for effective locking when fully forward and back. Examine clamp
assembly for secure location of footplate assembly stem tube. Check that footplates
remain vertical when raised. Examine heel loops for damage or excessive wear and
security of attachment. (See Section 8)
4.1.5 Examine the parking brake assemblies for wear, damage or misalignment. (See Section
9)
4.1.6 Check operation of folding push handle assembly and that it is free to move and locks into
place positively. (See Section 10)
Check that the hand grips are not damaged and are securely fitted to the push handle.
4.1.7. Ensure that tube plugs and ends are fitted to:
Front of seat tubes.
Front of bottom frame tubes.
Armrests front and rear.
Top of backrest tubes.
4.2 Lift the front of the powerchair and rest the push handles on the floor.
4.2.1 Examine the structure of the frame for damage.
4.2.2 Check the pivot points for undue slackness, caused by loose nuts and bolts, or worn parts.
Check that front and rear locking links fully lock. (See Section 11)
4.2.3 Check castors for free rotation of the wheel and the complete assembly. Examine castors
for wear in the bearings. Examine locating spindle for signs of bending, at the point where
it is attached to the frame. (See Section 12)
4.2.4 Examine tyres for uneven wear. Check wheels for free rotation, excessive end float and
rim rock.
4.2.5 Check controller is secure to mounting bracket and that this can be secured to powerchair
by knurled knob/handle on armrest. Examine controller for damage, particularly any which
may allow ingress of fluid. Check joystick knob is secure to controller, speed control knob
and charging socket cover are in place. Move joystick around quadrant checking for any
roughness or stickiness, on release the joystick must self-centre immediately otherwise
braking of the powerchair will be compromised. Ensure that all LED's are functional so that
it can be determined when controller is switched on/off and that any diagnostic information
is accurate. Check that beau plug on wiring loom fits securely.
4.2.6 The batteries fitted are leak-proof and require no maintenance except to check for damage
and security of connections. See Section 14.6 for comprehensive instruction.
4.2.7 The battery charger is maintenance free, the only serviceable part is the fuse fitted to the
mains plug. See Section 14.6 for comprehensive instruction.
4.2.8 Ensure the batteries are fully charged.
4.2.9 Drive the Crystal at maximum speed in forward, reverse, left and right directions checking
that the joystick response is uniform.
