- Joined
- Nov 14, 2013
- Messages
- 3,575
I promised to post on this, so here goes. BTW, I am posting this in the middle of the night without all the pictures I want to add, so check back later to see the pictures if you are interested.
SPOILER ALERT #1 - there's *no* woodworking and not much Festool involved, so if that puts you off you can stop reading now.
SPOILER ALERT #2 - the injury came about from spending too much time on my feet on concrete, not from any mishap. I try to be safe in most things, and this was no different. I just overdid it.
The problem: I needed a way to pull the battery out of my stock picker (forklift) safely for cleaning and other reasons. I didn't get a picture of the MESS that it was when I took it apart, partly because the rollers were 'welded' in place with detritus from the battery boiling over due to improper charging before I got it. We're jumping ahead here as I had the battery cart assembled far enough that I could use it at this point. I had to use a come-along to DRAG the battery out of the compartment. Then it took everything my 20-ton shop press has in order to press the roller shafts out of the frame and free up the rollers. I couldn't even get the roller pins out using the shop press - I had to drill them out before I could press out the shafts. Fun!
Here's a couple pictures of the ends of the battery roller frame from inside the picker AFTER I spent 2 days cleaning it up:
[attachthumb=1]
[attachthumb=2]
And an 'after' picture with the frame finished with POR15 and the rollers reassembled and installed back in the frame. I was able to salvage the rollers and shafts, but I used new washers and new roller pins:
[attachthumb=3]
So the problem is that the battery weighs 975 lbs/442 kg. It was obviously important to 'do it right' when dealing with that kind of weight. I spent considerable time debating how I wanted to build the cart.
I started with a 4' section of heavy duty roller-conveyor that I got (CHEAP!) from a local material handling business. The rollers are a bit rusty, which won't matter to my application since it's going to be exposed to battery acid anyway! [eek] So far that's the only thing has cost me any money.
I had originally planned to make a stationary unit to just roll the battery onto, but Mrs. WOW convinced me that I would be sorry if I did that because sure as shootin' I would want to move it around for one reason or another. As usual, she was right.
Because it was the weekend I spent some time at HomeDespot looking at casters, but they had a very limited selection and anything that would handle the weight was ludicrously expensive. Discouraged, I came home and searched my caster bins not expecting to find anything but - what do you know - there were four swiveling, locking casters that were PERFECT.
[attachimg=5]
I measured 'em up and got busy in my CAD program. Here's what I came up with:
[attachthumb=4]
The dimension are not all there since I am working with materials I have on hand and am 'fine tuning' it (read: making it up) as I go along'. But you get the idea.
So here is what it looks like right now, ready for paint:
[attachimg=6]
SPOILER ALERT #1 - there's *no* woodworking and not much Festool involved, so if that puts you off you can stop reading now.
SPOILER ALERT #2 - the injury came about from spending too much time on my feet on concrete, not from any mishap. I try to be safe in most things, and this was no different. I just overdid it.
The problem: I needed a way to pull the battery out of my stock picker (forklift) safely for cleaning and other reasons. I didn't get a picture of the MESS that it was when I took it apart, partly because the rollers were 'welded' in place with detritus from the battery boiling over due to improper charging before I got it. We're jumping ahead here as I had the battery cart assembled far enough that I could use it at this point. I had to use a come-along to DRAG the battery out of the compartment. Then it took everything my 20-ton shop press has in order to press the roller shafts out of the frame and free up the rollers. I couldn't even get the roller pins out using the shop press - I had to drill them out before I could press out the shafts. Fun!
Here's a couple pictures of the ends of the battery roller frame from inside the picker AFTER I spent 2 days cleaning it up:
[attachthumb=1]
[attachthumb=2]
And an 'after' picture with the frame finished with POR15 and the rollers reassembled and installed back in the frame. I was able to salvage the rollers and shafts, but I used new washers and new roller pins:
[attachthumb=3]
So the problem is that the battery weighs 975 lbs/442 kg. It was obviously important to 'do it right' when dealing with that kind of weight. I spent considerable time debating how I wanted to build the cart.
I started with a 4' section of heavy duty roller-conveyor that I got (CHEAP!) from a local material handling business. The rollers are a bit rusty, which won't matter to my application since it's going to be exposed to battery acid anyway! [eek] So far that's the only thing has cost me any money.
I had originally planned to make a stationary unit to just roll the battery onto, but Mrs. WOW convinced me that I would be sorry if I did that because sure as shootin' I would want to move it around for one reason or another. As usual, she was right.
Because it was the weekend I spent some time at HomeDespot looking at casters, but they had a very limited selection and anything that would handle the weight was ludicrously expensive. Discouraged, I came home and searched my caster bins not expecting to find anything but - what do you know - there were four swiveling, locking casters that were PERFECT.
[attachimg=5]
I measured 'em up and got busy in my CAD program. Here's what I came up with:
[attachthumb=4]
The dimension are not all there since I am working with materials I have on hand and am 'fine tuning' it (read: making it up) as I go along'. But you get the idea.
So here is what it looks like right now, ready for paint:
[attachimg=6]