William Malona said:
Hello everyone..I have noticed a slight amount of backlash in the RA axis of my 8 year old C8 Deluxe mount, so I have tried to reduce the play by tightening the worm gear mount against the worm wheel. I rocked the forks in a east/west direction with the RA adjustment knob locked, and felt some play. So I cleaned all the old grease off the gear and worm, regreased with some high temp lithium white gease and remounted the motor assembly again. I have tried to keep the worm gear parallel against the wheel, not too tight to restrict movement, or add binding friction which is bad. But too loose is also bad. So, how do you know what is the correct amount of force to keep the 2 gears engaged, but not too loose or tight? I have read that you should be able to pull the motor back some, and release the worm from the wheel gear. There are 2 set screws/bolts that apply pressure, I am just unsure of the correct amount of torque to apply. Thanks for the help. Bill
By C8, I assume you mean "Celestar" 8. How do you know what is "right"? Minimum play, but no binding. Carefully check to make sure that there is no stalling/binding _anywhere_ along the 360 degrees of the drive motion. Some play is in fact "normal" and will not hurt pea turkey. Better too loose than too tight.