The Westinghouse HL-71B Linatrol

Anyone have the HL-71B service manual handy? I have issues with our Westinghouse Linatrol system. Obviously, it's an old system and in need of upgrade, but for now it has to run...

Sometimes I have issues with the X axis, and sometimes X is fine and the Y axis is the problem. (HL71B service manual or HL71 service manual would probably work)

Thanks!