Author Topic: Benjamin Hand Pump diagram  (Read 4491 times)

Offline larspawn

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Benjamin Hand Pump diagram
« on: March 14, 2009, 12:12:29 AM »
I have one that won't build up pressure.  I've been searching the net for a parts diagram.  Anyone have any ideas on what to tackle first?  Bought it used but it looks new.
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Guns:  One less than too many...

Offline melloroadman

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RE: Benjamin Hand Pump diagram
« Reply #1 on: March 14, 2009, 04:44:55 AM »
When mine went bad the tube had become lose up at the base and  the o ring went bad . It was covered under warranty and they sent me a new one . You might phone crosman Monday and ask them if they have a parts break down they can send you . I thought they were going to supply repair kits for them but I could be wrong . I very carefully set mine in a pan of water making sure the air inlet was above the water and tried to pump up the rifle and found the leak that way .There is a valve in side that only lets the air flow one way that might be stuck as well .Good luck .Marvin