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Bicycle Pump

Old 07-26-08, 11:40 PM
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Desert Rider 7
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Bicycle Pump

I have a Blackburn TrakPump TP-1 bicycle pump. My problem is, I can't get it to pump. It'a a stand-up. And when I raise the handle to pump air in the tire I'm unable to push down and begin pumping. Anyone know what can be done?
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Old 07-26-08, 11:59 PM
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Can you pump with other pumps? I have a valve that causes me a lot of problems on my rear tire... I think the metal might be bent or something? Anyways it could be with that.. Also if the tire is already inflated it might take a lot of force to get any more air in. I am not familiar with your particular pump but on mine the last few to get it up to pressure are a bit of work. Hope that helped
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Old 07-27-08, 01:55 AM
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Thanks, buy-fixie.

I might have to take it apart. I don't know. But thanks for your input.

Just take it in the house, raise the handle and try to push her down. Won't budge.
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Old 07-27-08, 12:05 PM
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Ask in the Bicycle Mechanics forum as well. I've never had that occur with any of my pumps...very odd.

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Old 07-27-08, 12:09 PM
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Usually, that happens when the stem valve doesn't get pressed down or there's an obstruction blocking air flow. A bent stem valve could cause the problem. But, East Hill is right, ask on the mech. forum.
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Old 07-27-08, 02:22 PM
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If you have presta valves did you unscrew the small cap?

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Old 07-27-08, 08:29 PM
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Thanks RonH.

Naw, I haven't even tried it on a tire yet. You push the handle down and normally you can hear air coming out when it's not connected to a valve stem. In my case, raise the handle... Now try to push down. Can't do it. I'll try to connect to a tire then see what I can do.
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Old 07-28-08, 02:47 PM
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If you can raise the handle but can't push down when not on a valve then it sounds like a pump problem.
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Old 07-28-08, 10:36 PM
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Thanks RonH.

Indeed it is a pump problem. Next I'll see if the manufacturer can be contacted to give me a definitive answer.
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