1. find the rust stains, worm gear2. find the crack and fracture of the worm gear to crowd the grounds that are found as early as (header and footer) of the worm gear sprocket.3. symptoms of stuttering and stuttering while rotating around with huge vibrator while stretching the cable sleeve.4. edit by grinding and welded seams and broken beards worm gear and a test by rotating (grinding repeatedly over 10 times with minimal lag prior to use) and a surface of worm gear off lots, making the strength of the worm gear lowered.
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