Share 'Crestworth Traction Lamp help required'

Hi, I know this isn't strictly goo but I picked up an old Crestworth Traction Lamp via ebay which doesn't function as it should. When I turn the power on the lamp lights up but the wheels don't turn. I can hear what I believe is the motor but I am looking for advice on how to open the lamp base to access the motor mechanism to see if it can be repaired. Any info would be appreciated. Thanks…