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post #1 of 65 Old 02-22-2014, 01:18 PM Thread Starter
GMH
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BOB-CAT resurrection

After my recent expenditure on my relatively new Simplicity, I decided to drag the BOB-CAT out of the snowbank and treat it to a little restoration.
The reason I parked it in the first place was because it only has a 2-speed transmission and seemed painfully slow to back up and transport.
My thoughts are that I should rebuild or refurbish the engine/drivetrain. Treat it to some new tires and possibly build a new longer chute and add teeth to the auger. I have to resize pics before I can post them. Any thoughts on other possible mods would be appreciated.
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post #2 of 65 Old 02-22-2014, 03:22 PM Thread Starter
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Some pics.
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post #3 of 65 Old 02-22-2014, 07:12 PM
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Nice machine. I like the exposed pulleys and drive mechanism on these. Are parts difficult to find?

-Ken

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2011 John Deere 1330se

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post #4 of 65 Old 02-22-2014, 08:35 PM Thread Starter
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There are no exposed belts when all the guards are in place. The auger and impeller however do keep running unless you manually disengage the lever. I have not gotten as far as looking for parts yet, so I don't know.
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post #5 of 65 Old 02-24-2014, 07:12 PM Thread Starter
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Everything seems to be in pretty good shape inside. one of the chains is quite loose and will skip cogs. i will have to see if i can get a 1/2 link for it.

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post #6 of 65 Old 03-23-2014, 08:02 AM Thread Starter
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I have worked my way down to the offending chain. It looks to me like someone may have replaced it without taking the machine apart. there is no way someone would install a chain this loose if they had proper access.
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post #7 of 65 Old 03-23-2014, 08:32 AM
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a feature I thought was interesting on them is you can adjust tension for the auger/secondary to slip.. no shear bolts to shear and no gear box. On that loose chain- I don't know.. but make sure either shaft isn't bolted in slots to get adjustment. if so, you could see maybe from outside of frame- just a thought.

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post #8 of 65 Old 03-23-2014, 09:09 AM Thread Starter
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The three main shafts are not adjustable. The only one that can be adjusted is the idler/tensioner shaft on the forward drive chain, which is on the right in this pic.
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post #9 of 65 Old 03-23-2014, 09:55 PM Thread Starter
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Today, I fixed the Fwd-Rev shifter which would not stay in gear. The bolt that holds the ball&spring in place had fallen out and mangled the low-range chain and dented the bottom of the case at some point previous to my ownership. The bracket that mounts the ball & detent setup was only fixed with two bolts, and could swivel away enough to lose the ball. Also the 1/8" thick flat bracket was bent, which could also drop the ball.
I added tabs and two more bolts and a gusset to keep the bracket from twisting or bending. I added another cotterpin farther down the shaft to lessen the wear on the original cotterpin. I am also going to drill and pin the bolt, once it's adjusted, that holds the ball in place so it cannot come out again.
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post #10 of 65 Old 03-24-2014, 12:55 AM
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Holy cow of re-engineering!

Good work.

Garage:
MTD....2 stage(modern 8.5 HP) not my favorite
Honda HS622 TA-B - acquired at an auction- nice machine for it's size.
Toro S-140- Picked it up on trash day... it runs, sort of.
Yamaha YS 240 TB "Ricky" latest Craigslist find- on the bench now.
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