GD_MR-INS-LAB-RevA21 • 4000MRQ2 / 4650MR / 4850MR MRI Transport Wheelchair User Manual
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CHECK REAR WHEEL ADJUSTMENT
Inspect the wheels at least once a month. Check alignment by elevating the rear of the transport
wheelchair on a stable object until the rear wheels clear the ground, or placing the transport
wheelchair upside down in a stable position such that the wheels can spin freely. Spin the wheels;
there should be no wobble or sideplay, and the wheels should spin freely without binding. The
bearings should be clean and rotate smoothly. Check rim sideplay to verify that bearings are not
too loose. If there is a problem, contact your Graham-Field authorized distributor. If adjustment is
required, this should be done by your Graham-Field authorized distributor only.
CHECK ARMS
Check arms at least once a month. Inspect for sharp edges or cracks which could weaken the arm,
and replace if found. Ensure all attaching screws are present and tight. Check for burrs on any
screw heads and replace if found. Ensure that screws do not extend into the padding. Confirm that
the post at base of arm fits correctly in the socket, snug but not binding.
CHECK BACKPOSTS / PUSH HANDLES
Check backposts at least once a month. Ensure that all mounting hardware is securely fastened
and that the backposts are not bent or damaged. Contact your authorized distributor if you
observe cracking or peeling paint or plating.
CHECK FOOTRESTS
Check footrests at least once a month. Inspect the locking mechanisms to confirm sure fit. Check
for cracks, burrs, or sharp edges, and replace if found. Ensure the footrest will automatically lock
securely in place and will not accidentally unlock.
CLEANING YOUR MRI TRANSPORT WHEELCHAIR
Wipe off base and seat frame frequently, at least once a week, using a soft cloth. Dry the transport
wheelchair immediately if exposed to moisture. Clean the frame every three months with a mild
soap and water solution. The frame does not need to be waxed. Do not use solvents, abrasive
waxes, caustic chemicals or spray silicone. Never use abrasive cleansers; they could scratch the
finish. Never use steam or high pressure cleaners. Clean upholstery and plastic components at
least once a month with a mild soap and water solution.
CHECK CASTERS
Check the caster stems for proper rotation at least every three months. The caster forks must
swivel freely to facilitate steering and handling. Adjusting the stem nut varies the amount of force
required to turn the caster. If the nut is too loose, the caster will flutter or shimmy; if too tight,
the transport wheelchair will be difficult to steer. If the caster stems require adjustment, or the
stem bearings require replacement, contact your Graham-Field authorized distributor. Ensure that
stems are firmly attached to forks, and that forks and stems are not bent. Evaluate all threads,
locking nuts and bearings.
CHECK WHEEL BEARINGS
Have your Graham-Field authorized distributor check caster and rear wheel axle bearings at least
every six months.
