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Well Jim,
You are getting closer! You will be extremely lucky if the final hook timing setting is within 1/2 of a degree. When you go to the Head Timing tab, you will notice at "Head Up", that the Z axis position is at 26.8, 26.9, or 27.0. Every time you click on "Head Up", the machine will possibly change to one of these numbers. This is because of the tolerances that are found in the drive belts and gearing that runs the machinery in the Amaya.
Therefore to really set the hook timing properly and get it right on the money, all the tolerance or slack must be taken out of the system. This is done by "Walking" the machine, in this case, the Z axis position, towards the target mark, which in your case happens to be 200.0. Every Amaya may have a different target number.
In Amaya OS take your machine to C-11 as this is indicated as the closest needle on your machine, then go to Maintenance and Head Timing. Using the keypad, use the "Adjustment Key" (looks like a hammer) amd the "Up" arrow key to cycle the Amaya to "Head up" position a couple of times. Now use the "Adjustment Key" and the "Down Arrow" keys to cycle the Z axis shaft to "Bottom Center", the computer should now be reading approximately 180 degrees. Use the "Hoop Key" and the "Right Arrow Key" to advance the Z axis forward 10 degrees at a time.
In your case do this only one time, which should get you close to 190 degrees. Remember we are going to walk slowly into the target number of 200.0, keeping pressure on all the gearing in one direction only!!
Now use the "Hoop Key" and the "Up Arrow Key" to advance the Z axis shaft 1 degree at a time until you get within aproximately 1 degree of your target number. Now switch to the "Trace Key" and the "Up Arrow Key" to advance the Z axis shaft by 1/10 of a degree at a time until you have reached the target number. IF YOU EXCEED THE TARGET NUMBER, that is by pass it, yus MUST start the process over. It is not OK to back the Z axis posiion up to get back to your target number.
You will notice when first starting with the "Trace Key" and the "Up Arrow Keys" that the Z axis position on the computer will probably not even change until you have pressed them 3 or 4 times, then the position will start changing 1/10 of a degree at a time. This is because as the Z axis is turning, you are taking up the remaining slack in the gearing.
This is the proper way to go about reaching the target number. You can use this procedure at any time to check on the hook timing position.
If you are going to reset your Hook Timing and you are at the target number, putting pressure on the screws to loosen the hook on the shaft easily will change the position and the target number. When this happens, you MUST go through the process again and walk youself back into the target number to set the timing. You will learn how to use a screwdriver very gently and with finesse!!
Jim, out of curiosity, check your hook timing using this procedure. The needle guard gap will not change, but the left to right position of the hook probably will. When the hook position is right on, you should see just the tinest bit of the point of the hook peeking out the left side of the needle.
There ya go buddy....more work for ya....you will be an expert soon!!!!
Rod Springer
Melco Tech & Trainer
You are getting closer! You will be extremely lucky if the final hook timing setting is within 1/2 of a degree. When you go to the Head Timing tab, you will notice at "Head Up", that the Z axis position is at 26.8, 26.9, or 27.0. Every time you click on "Head Up", the machine will possibly change to one of these numbers. This is because of the tolerances that are found in the drive belts and gearing that runs the machinery in the Amaya.
Therefore to really set the hook timing properly and get it right on the money, all the tolerance or slack must be taken out of the system. This is done by "Walking" the machine, in this case, the Z axis position, towards the target mark, which in your case happens to be 200.0. Every Amaya may have a different target number.
In Amaya OS take your machine to C-11 as this is indicated as the closest needle on your machine, then go to Maintenance and Head Timing. Using the keypad, use the "Adjustment Key" (looks like a hammer) amd the "Up" arrow key to cycle the Amaya to "Head up" position a couple of times. Now use the "Adjustment Key" and the "Down Arrow" keys to cycle the Z axis shaft to "Bottom Center", the computer should now be reading approximately 180 degrees. Use the "Hoop Key" and the "Right Arrow Key" to advance the Z axis forward 10 degrees at a time.
In your case do this only one time, which should get you close to 190 degrees. Remember we are going to walk slowly into the target number of 200.0, keeping pressure on all the gearing in one direction only!!
Now use the "Hoop Key" and the "Up Arrow Key" to advance the Z axis shaft 1 degree at a time until you get within aproximately 1 degree of your target number. Now switch to the "Trace Key" and the "Up Arrow Key" to advance the Z axis shaft by 1/10 of a degree at a time until you have reached the target number. IF YOU EXCEED THE TARGET NUMBER, that is by pass it, yus MUST start the process over. It is not OK to back the Z axis posiion up to get back to your target number.
You will notice when first starting with the "Trace Key" and the "Up Arrow Keys" that the Z axis position on the computer will probably not even change until you have pressed them 3 or 4 times, then the position will start changing 1/10 of a degree at a time. This is because as the Z axis is turning, you are taking up the remaining slack in the gearing.
This is the proper way to go about reaching the target number. You can use this procedure at any time to check on the hook timing position.
If you are going to reset your Hook Timing and you are at the target number, putting pressure on the screws to loosen the hook on the shaft easily will change the position and the target number. When this happens, you MUST go through the process again and walk youself back into the target number to set the timing. You will learn how to use a screwdriver very gently and with finesse!!
Jim, out of curiosity, check your hook timing using this procedure. The needle guard gap will not change, but the left to right position of the hook probably will. When the hook position is right on, you should see just the tinest bit of the point of the hook peeking out the left side of the needle.
There ya go buddy....more work for ya....you will be an expert soon!!!!
Rod Springer
Melco Tech & Trainer
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