Hi there, i also have a WM 63 that knocks badly on full spin, and i think that the suspension is worn. the drum is very easy to rock and push up and down if you take the lid off and push gently with your hand. the concrete blocks are solid and i have replaced the springs, but it hasn't helped much.
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If not an unbalanced load, then it is an unbalanced drum. Turn the drum by hand when it is empty and it should spin smoothly (not freely because it is attached to the motor so there will be resistance). Can you hear a knocking or grinding? Push and pull the drum in and out, again any knocking? With your hands at 3 and 9 o'clock push with one hand while pulling with the other and rock the drum back and forth. Try it with hands at 12 and 6. Does it feel loose or makes a knocking?
Grinding is usually a sign if the bearings going or gone and knocking may indicate a broken drum holder (sometimes called a spider)
If everything sounds and feels okay then it may just be the machine is not level or secure. Rock the machine and if it wobbles check the feet and adjust until no more rocking. The feet do bend or adjust themselves over time, even making some kind of impression on the floor that makes it settle to a different level.
check for worn pads or linings. Check for cracked disc rotors or out of round drums. Check rear suspension rubbers for worn out . The knocking sound is being generated by a section that is missing ,cracked or out of round and this is making the suspension react resulting in the knock.
Hi from retired Englishman in SW France,
'Knocking when spinning' normally means that the washer is out of balance.
It is necessary to ensure absolutely that the machine has all 4 feet very firmly on the floor, and I mean firmly ;-0) Doesn't matter whether it is empty or not but switch it off then- very firmly push one front corner diagonally into the centre of the machine and see if the machine moves or rocks AT ALL, even the slightest. If it does you will need the open-ended spanner which came with the (new) machine........which of course went missing a long time ago?!! An adjustable spanner will suffice. Adjust the foot under that corner downwards until it is very firmly- almost pushing- against the floor but not so far that the corner lifts up! If this corner did not rock do the same to the other. Once you cannot rock the machine the slightest little bit, screw the locking nuts up tight to the underside of the machine so that they will not move. Ideally the rear feet should also be locked.
If this has not cured the problem it is possible that the internal suspension is malfunctioning.
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Thanks and good luck!
before you take the drum out please do one simple check to see if the bearing have worn out.open the door and lift the silver drum inside up an down now if you ear a knocking noise or feel a knocking vibration then it definately the bearrings have gone.
the pump hose is knocking if you can unplug the machine and tilt the machine on its back you can see the hose get a cable tie big one you can cable tie it down that would stop it from movingthat's why its knocking if the pump is not on that side then your suspension leg is on its way out meaning you will have to call your local second hand shop to have a look but be for you do have a loo your self save money