Printmaster QM 46-2 Feeder Troubleshooting

[Kaoticor]

Hello all,


We are running in to some troubles with our Printmaster QM46-2. We keep getting feeder trips even though we run an envelope feeder. We have pretty much ruled out envelope feeder problems and are now troubleshooting the infeed on the press. Currently using #10 window envelopes and we noticed that when we crawl the press around, the suction cups seem to release the envelope right before it gets to the infeed draw wheels. Does this seem normal? If we are crawling the press, it will not feed an envelope through the press since it drops it right before it gets to the wheels. When we speed up, the problem is minimized and we can at least run... But eventually it will give us a trip and we were wondering if it might be connected to it not getting in to the wheels. Have any of you experienced a simliar problem or have any feedback for this??? Thanks in advance,

-K

 

[cmac75]

Yes that is normal for it not to reach wheels by hand. Are you getting sheet late,early? What type of envelope feeder?

 

[RGPW17100]

If you remove the gear side cover just in front of the double sheet detector is a 3/2 valve. When this valve gets dirty it will give problems you describe in your post. There are four phillip head screws and it is spring loaded so removing the last screw you need to push the cover while releasing the last screw. You will find a brass sleeve and a valve that is best removed with a needle nose pliers. Remove the valve and you will see two rubber gaskets and probably see a bunch of black residue. Remove this residue with a clean cloth. Lightly rub the gaskets with crisco or some other vegetable shortening then put it all back together again.

The 3/2 valve turns the vacuum on and off to the feeder. When it gets dirty it will release the vacuum too soon and the envelope will not get to the infeed rollers. If you are getting a late sheet warning try advancing the sheet feed as far forward as possible.

 

[Kaoticor]

Yes that is normal for it not to reach wheels by hand. Are you getting sheet late,early? What type of envelope feeder?

Thanks for your post cmac.
Seems to not be getting the sheet at all. Doesn't seem to be reaching the wheels and causes the envelope behind it to jam it up in there. Model of envelope feeder is:
Astro
AMC 2000-17

The 3/2 valve turns the vacuum on and off to the feeder. When it gets dirty it will release the vacuum too soon and the envelope will not get to the infeed rollers. If you are getting a late sheet warning try advancing the sheet feed as far forward as possible.

Thanks for that info RGP. We have a 2008 model. Do you know if that valve was still something they used on the newer models? How often do you find that valve need to be cleaned? We have a powder sprayer as well.

-K

 

[cmac75]

Yes the valves are the same. there is also a chicklet on the op side behind where the guard about halfway up on the right. It is a little plastic peice that sides up and down in a slot. When they where out it will give you problems with envelopes. I will look in the parts manual tomorrow and find the part# for you so he can find it easier.