26/01/2024
We have been made aware via our post market surveillance and warranty process, that several QUICKIE Q400M and QUICKIE Q500M powered wheelchairs have been reported to have increased noise emitting from the base.
This has been reported on less than 10 chairs in the field, however we want to communicate this bulletin to you to allow any products in the field that are affected, to be fixed efficiently.
If you have a chair that is reported to be making increased noise emitting from the base, please review this bulletin alongside ‘TB UK240 - Q400 M & Q500 M Castor Noise’ to effectively identify the root cause.
The root cause is due to a stack up of tolerances on multiple parts in the Q400M and Q500M Chassis that surround the suspension, to allow the contact of the suspension link arm and battery box.
The occurrence of this fault is extremely low, as multiple parts used in the Q400M and Q500M all need to be on the outer side of the tolerance window for the fault to occur which is naturally very rare.
The fault is superficial and does not impact the performance or safety of the powered wheelchair, however we do acknowledge this is not as intended by our design and not welcomed by our customers and must be corrected.
Corrective Action in Production
From the 1st December 2023 all QUICKIE Q400M and Q500M Chassis are now supplied with an additional bush to eliminate the metal on metal contact and wear that could occur.
Corrective Action for chairs in the field
If you have a chair in the field that presents this issue, it can be rectified by fitting an additional IGUS Bush to the link arm assembly. They can be provided free of charge via our Warranty or Technical Services Department, and please see below for fitting instructions.
Description: Q400M/Q500M IGUS Bush
Part Number: 251618
Qty Required per chair 8
REWORK INSTRUCTIONS
Step 1 – Wheel Removal
Step 2 – Loosen Link Arm
Ensure the roller stays with the bolt for refitting
This will remove all tension from the link arm allow it to be removed
Step 3 – Removal of Link Arm
Step 4 – Removal of existing Bushes
(Fig 3)
Step 5 – Fitting of new IGUS Bushes
Step 6 – Refitting of Link Arm
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