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4.
Looking at the chair as in the above picture slide the Allen key through
the threaded hole on the left-hand side. Please note that rear castor
assembly can rotate, so do ensure that it is in the below position with the
large adjustment screw (circled in red below) facing towards you. Then
slide one of the silver washers over the end of the Allen key.
5.
Next, locate the rear wheel castor and slide it over the Allen key followed
by the second washer on the other side of the wheel. You should now
have a metal washer either side of the wheel and inside of the castor fork.
This is a bit fiddly, but it will fit, and you only need to do this when
replacing the rear wheel.
6.
Now this is in place, take the large silver bolt and push it through the rear
castor from the other (right hand) side, sliding out the Allen key as it goes
through. You may need to jiggle the rear castor
about a bit to ensure it’s
gone through.
