[amayausers.com] Re: long stitch skips

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Greg,

Your problem is a difficult one to diagnois because of the varibles involved. 
As a tech I approach this from the 'process of elimination' standpoint. 

It would start with checking all of the critical functions of the machine. This 
includes many items all involved with timing issues. Z-axis timing, hook 
timing, X-axis cable tension, threadfeed motor/computer values to see if the 
proper amount of thread is actually being fed correctly, the condition of the 
Take-up Lever Cam Disk which would be an extremely important item and the list 
would go on. And then there is the lubrication question? 

How old is this machine? How many total stitches have been put on it? When was 
the last time the Take-up Lever Cam Disk was lubricated? The pop-up timers are 
only guidelines to go by and my personal opinion based on experience is, if you 
are waiting for the timers to tell you to lubricate someting, you are waiting 
too long. The timers cannot calculate into the equation the individual 
environment the machine is exposed to, such as heat, humidity, non-run time, 
i.e., oil/grease drying up, etc, etc...

The Amaya's were designed to run with Organ brand DBX-K5 needles and something 
as simple as this can/may make the difference in the operation of this machine. 
The proper orientation of the needles and the correct needle depth setting 
would also have a direct effect on  this issue.

I know you say that you checked hook timing and even replaced the hook.....not 
questioning your mechanical ability but did you use the "closest needle" to 
time from, how close is the needle guard gap set? The closer this gap is, the 
better the machine will sew at higher speeds, which is just one of the 
benifits...Did you reset the Retaining Support Finger gap using the guage? Did 
you check, with a magifying glass, the face of the retaining support finger for 
nicks, gouges and/or burrs as this could deffintly cause you some grief?

As you can see, too many varibles, it may be time to cry 'uncle', bite the 
bullet and let a tech go over the machine with a fine tooth comb....have you 
called Melco?

Rod Springer
Amaya Tech & Trainer

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