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Old 01-25-2013, 03:57 PM #1
Derek0291
 
 
Join Date: Jan 2013
Phantom pump gets stuck.

When I air my phantom up and pump the gun it gets stuck when fully cocked back, and I have to return the pump handle manually.

My springs are in good condition, and i've cleaned the gun a couple times (today).

I've had the phantom for four (4) years.

Help?
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Old 01-25-2013, 04:59 PM #2
Nahib_Stilgar
 
 
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Is there a return spring on the pump arm?

That's what will bring the pump forward and drag the bolt/hammer with it. Otherwise there is nothing acting on bringing them forward.
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Old 01-25-2013, 05:04 PM #3
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Clean the bolt off too, and lube the internals.
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Old 01-25-2013, 06:27 PM #4
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also, make sure after you clean it that you re-assemble it proper or it could cause binding.

Make sure its oiled, and clean.

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Old 01-25-2013, 09:28 PM #5
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I had a similar issue years ago and if you back out the velocity adjuster the problem will most likely go away.
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Old 01-25-2013, 09:39 PM #6
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polish your internals.
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Old 01-27-2013, 12:31 AM #7
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Quote:
Originally Posted by breck View Post
I had a similar issue years ago and if you back out the velocity adjuster the problem will most likely go away.
+1 check your tpc and make sure it hasn't unscrewed all the way. Are you running VSC or a back bottle setup?
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Old 01-27-2013, 12:51 AM #8
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Quote:
Originally Posted by Nahib_Stilgar View Post
Is there a return spring on the pump arm?

That's what will bring the pump forward and drag the bolt/hammer with it. Otherwise there is nothing acting on bringing them forward.
I'm going with this. Does it fire when you move the pump handle forward and pull the trigger?
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Old 01-29-2013, 10:52 AM #9
Derek0291
 
 
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Just an update on this.

I had the red spring in (strongest) for when I was playing at 280 fps (pump not getting stuck).

When I tried playing at 230 on the novice field with a bunch of guys, I had to turn the TPC all the way out (counterclockwise) to get it to shoot 230 fps (this is when the pump handle starting getting stuck).

I switched to the weakest spring (blue). Then I turned in the tpc to about 3 turns and it fixed it.

Mike was nice enough to give a quick response:

"The causes for the pump to stick: Pump is twisted, bolt rod bent, return spring is missing, blot / hammer dirty, pump ID dirty. But in your case it is probably the internal velocity is turned to the lowest setting thus the hammer bolt connection when in a cocked state are kinking to the point where the mechanism is dragging in the breech, just put about 3 turns on the velocity adjuster, which is the normal position. If the velocity adjuster is moving out of position just tighten the nylon set screw in the side of the bolt. If the set screw won’t turn, remove the velocity adjuster, unscrew the velocity adjuster, file or sand the tip flat and reinstall."

Cheers guys!!!
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Old 01-29-2013, 11:43 AM #10
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There you go, that make sense to me!

Glad you got it fixed.
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