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Model: EZCLUTCHSBrand: Peterson
Generally In Stock, Please Confirm Before Ordering
This upgrade kit modifies the declination clutch system on Meade LX200ACF, LX200GPS LX200R, LX400 ACF, RCX400 and LX90 families of telescopes. When installed, lightly tightening the clutch knob with two fingers is all that is required to hold even the most unbalanced scope firmly in position. You'll no longer have to turn the declination knob uncomfortably tight or risk having your knob popping off as you tighten it to it's breaking point. With the EZ Clutch you have enough "feel" that can easily dial in enough declination tightness to hold the optical tube firmly but still allow the drive to slip if you hit an end stop or an obstruction.
Meade's design utilizes a "wet clutch" system where two steel plates engage the aluminum declination drive gear. The space between these plates is lubricated to prevent the aluminum gear from galling and having aluminum chips falling onto the worm gear drive below. The EZ Clutch Kit converts Meade's clutch design to a "dry clutch," adding a specially developed friction plate to the system.
While the "obvious" fix was to add a larger knob (as was used on the LX200 "classic") Meade's new smaller "stylized" knob comes with a smaller weaker screw thread. Any machinist will tell you that you NEVER insert a steel adjustment bolt into aluminum, as steel abrades aluminum - causing the aluminum threads to wear out quickly. The aluminum scope trunnion section containing the female threads is thin, and there are usually only 3 full threads there to start with. The excessive force required to clamp the wet clutch plates leads to premature failure of the aluminum thread.* Since a larger knob would result in larger forces and an even more accelerated thread wear, we spent a bit more time with the engineering and developed this easy clutch modification. EZ Clutch forces are light and will prolong the life of this critical aluminum thread indefinitely.
The clutch kit for the 7" through 12" LX200GPS/R & LX90 scopes also contains inspections and appropriate adjustments of the drive if factory settings are found to be incorrect. Here's a 5-1/4" worm gear with minor tooth damage associated with an incorrect factory setting. This damage isn't discovered on some scopes until the teeth are chewed up so badly as to be non-functional
The LX200ACF, the LX200R, the RCX400 and the 14" LX200GPS scopes use a 5" diameter clutch friction plate.
The 7" - 12" LX200GPS and LX90 telescopes use a 3-1/2" diameter friction plate.
Great instructions provided making this fairly easy to do. The improvement in strength of the lock for little force applied is very significant and will make for a much more stable positioning of the OTA
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