[Drake] R-4B mechanical repair questions

[Gary Poland]

Dennis,
   The bandwidth lever just pulls off. Sometimes its tough to get off. Hold 
on to the coupling in front of the bandwidth wafer to keep the stress on it 
to a minimum.
    The vernier drive is worn. The balls will wear a groove in the shaft. I 
have had success in repairing one buy disassembling it and repositioning the 
balls into an unworn area of the shaft. I made up a drawing of this I will 
see if I can locate it.

73, Gary