[Jukebox-list] Wurlitzer 2800 lift arm problem

[Wesley Dean]

    Chad, because the lift arms are spring loaded in the up position, it will do no damage if they are pulled down when in play position. If you do this the record will stay on the turntable and you can tell if some obstruction is causing the hesitation. If there is no hesitation, you may assume the record is involved in the problem. If this is the case, reject the record and quickly turn off the power when the spindle has released the record. Now you may pull the arm down with the record and determine what is the problem. Wes
> chad at retroaudiolab.com wrote:
>> I'm working on a W2800 where occasionally the record will propel past  
>> the turntable due to the lift arm sticking on the upward travel and  
>> giving and extra push to the record due to un-smoothly released spring  
>> tension. It only happens right toward the end of the lift arm travel  
>> and most of the time the record will settle back to the TT and play OK  
>> but I know it's not right. It is worse on the left hand lift arm  
>> (viewed from front).
>> 
>> I have removed the mech from the cabinet and have degreased/lubricated  
>> the roller bearing on the cam for the lift arm mechanism and cleaned  
>> and lubricated the other linkages in the lift arm system. I have  
>> adjusted the lift arm centering. When turning the mechanism through a  
>> cycle by hand using the knob on the bottom of the mech motor the lift  
>> arm action on the bench still gives that extra jolt at the end of  
>> travel. Any suggetions appreciated! Thank you.