I had been anxiously awaiting the delivery of this power hammer. It’s an Anyang C41-40, the 88lb model. As it was being unloaded from a big truck (Rosenau transportation), it was moved onto the tailgate to wait for a forklift. The tailgate apparently broke or something.. and it dropped the machinery onto the concrete. Aargh. Damage.
Nov 26, 2012, 6pm update. Some repairs are already underway.
Roger (above) has taken off the cowling, (he had to cut it to get it off), straightened it, and is re-welding it back together.
Below, he’s straightened out that bent shaft, and gotten the chrome lever and foot pedal working.
Here’s a few of the belts, and the wood base we’ve put the hammer onto.
On the other side of the hammer (which didn’t strike the ground), there are some oil-level indicators. These seem to be ok.
Here’s a cool picture of the brass plate with serial number.
Nov 27, 2012, 2pm update. Here’s pictures of the linkage from the foot pedals, so James Johnson can visually inspect to see if we got them back to normal.
And with the foot pedal fully depressed, the upper linkage and pointer look like this:
Nov 27, 2012, 10pm update. The cowling is back on, the motor re-mounted, the power cord re-connected. But the big wheel inside the cowling is rubbing on the cowling metal, so its position will need to be adjusted.
I discovered an oil leak where this clear tubing joins the black nipple. It’ll be an oily job to fix that, tomorrow.
The hammer wobbles when turned on, so I’ll more urgently try to get the sand into its base, and I’ll have to add shims under the wood base on the bottom, to keep it from rocking. This wobble makes me worried that the black metal base plate got bent during the drop of the truck.
But the most concerning problem: When I turn it on, the dies whack into each other quite a few times, then they gradually separate and the TUP stays far up, like it should… but only for about a minute, then it gradually sinks back down and starts whacking onto the bottom die again, at which point I shut it off.
Nov 28, 2012 update. Dan and Roger noticed today that a bolt had been sheared off during the fall, and the black lever arm had been slipping on the central shaft, instead of reliably rotating the shaft to control the hammer.
After fixing that, the pedal linkage is controlling the hammer nicely now. They also borrowed a lifting crane for aircraft, and lifted the whole hammer, adjusted the wood base, filled the base with sand, and set it down. Now it runs well with no wobbling.
I’m also posting this picture of motor and flywheel, with the belts removed, just because it’s kind of cool and I won’t get to see it again, once the cowling is put back on, permanently.