[pntbllref]

i recently got for free an old hammer pump and really cant find any info on them and cant figure out how to adjust the velocity so any help or info would be appreciated

 

[ilerman]

The old hammers were made by Kingman(the manufacturer of the Spyder) They use Spyder barrels and I believe that the velocity is adjusted down through the barrel. I imagine with a Hex or Allen wrench. simply unscrew the barrel and you should see the slot for the key-wrench to adjust the velocity.

 

[martix_agent]

You would think it was done that way, but you actually turn a thing inside the bolt. You take off the barrel and pump handle and can see if in the bolt.