Wondering if anyone can provide some advice on a problem I have with my DC33 cleaner. The head (that the beater bar sits inside) has become very stiff after I replaced the motor. Now when you try to use the cleaner on the floor, the head doesn't drop to floor level under its own weight.
Initially the problem appeared to be a misalignment between the head and the motor housing. The catch that runs in the channel of the motor housing appears to be applying a lot of sideways force onto the motor housing, causing it to bind when the head tried to move. The head seemed to be too far over to the left as a result of the head moulding not fitting around the motor correctly. I loosened the screws on the motor housing and was able to get the head moulding to fit around the motor rather than sitting outboard of it. Now the catch exerts no sideways force onto the motor housing, but there seems to be a lot of friction from the area where the head moulding meets the motor (where I adjusted the fit). I've applied some WD40 in this area and this improved matters a bit but not to the point where the head falls to floor level under its own weight. Can anyone provide any advice about how to resolve the situation?
Have left the problem for a while to have a coffee and do some research but haven't found anything on the internet to help, other than this forum!