BobTach Removal

[rolb]

I can't remove the bob-tach from the lift arms, the one bolt was tight and I was able to remove it with no problem. The other bolt never tightened down but just spun, I removed that one with no problem. The bob-tach will not release from the lift arms and I can't see what's keeping it from dropping loose. What is holding it in place? If I need to spread the lift arm away from the Tach how much spread do I need to worry about? so as not causing extreme damage to the lift arm.

 

[Xfaxman]

:welcome: to TractorByNet! :thumbsup:

If you don't get an answer in this forum, try posting here: http://www.tractorbynet.com/forums/bobcat-construction-equipment/

 

[SSdoxie]

After removing the from the outside of each lift arm, push the pin that the bolts were threaded into back in towards the Bobtach. Push the pins back far enough so the ends are inside the Bobtach and Bobtach will lift out.

 

[DJ54]

You may need to remove the grease zerks, to get the pins to back out if you've kept it greased well. There will be grease in the cavity where the pins need to back in to. Removing the zerks will let grease out, as you tap/push the pin out. If they are like on my little 450, the pins are tapered where they go into the arms. I normally run a 6" long bolt into where the bolt that holds it in place at least 5-6 threads, (mine is 1/2") then rap with a hammer to get the taper lock pin to release. As mentioned, push in beyond the inner push arm, to clear.

If the Bob-Tach isn't resting on the ground, put blocks under it to support it, until you get the other side back out, to keep it from binding.

I finally found a Bob-Tach head for my little one, but don't have 2 other buckets I fabbed converted to the quick attach yet, so go through this process to change buckets every time.

 

[rolb]

You may need to remove the grease zerks, to get the pins to back out if you've kept it greased well. There will be grease in the cavity where the pins need to back in to. Removing the zerks will let grease out, as you tap/push the pin out. If they are like on my little 450, the pins are tapered where they go into the arms. I normally run a 6" long bolt into where the bolt that holds it in place at least 5-6 threads, (mine is 1/2") then rap with a hammer to get the taper lock pin to release. As mentioned, push in beyond the inner push arm, to clear.

If the Bob-Tach isn't resting on the ground, put blocks under it to support it, until you get the other side back out, to keep it from binding.

I finally found a Bob-Tach head for my little one, but don't have 2 other buckets I fabbed converted to the quick attach yet, so go through this process to change buckets every time.

Re: Appreciate it. The tapered pin was stuck and the advice you gave was good. Thanks.
One other thing, if the tapered bore in the lift arm is wallowed slightly and the tapered end of the pin slides past the lift arm hole; I'm not sure the pin will tighten down because the pin would bottom out on the washer. Would it make a difference if I were to cut 1/8" - 1/4" off the end to make the taper tighter.

 

[DJ54]

Doubt it would hurt anything. There should still be plenty of pin in the Bob-Tach attachment to hold it. The only problem may be the bolt bottoming out in the pin, before it gets tight. But an extra washer on there outside would probably take care of that.

Sounds like the bolt that holds the pin in, may have been loose allowing it to back out a tad, to let it wallow. My pins show wear on the round end. Mine was a rental unit, so I'm sure lack of grease when out caused that.

 

[SSdoxie]

Re: Appreciate it. The tapered pin was stuck and the advice you gave was good. Thanks.
One other thing, if the tapered bore in the lift arm is wallowed slightly and the tapered end of the pin slides past the lift arm hole; I'm not sure the pin will tighten down because the pin would bottom out on the washer. Would it make a difference if I were to cut 1/8" - 1/4" off the end to make the taper tighter.

Yes, you can shorten the end pin somewhat to make sure it pulls in tight without contacting the washer. One thing I do when putting these pins back in; remove ALL grease from the pin and Bobtach bushing, apply a coating of spherical Loctite to the tapered part of the pin, insert pin in Bobtach, slide it up in place then (with a longer bolt threaded in finger tight) pull the pin into place, remove that bolt and apply Loctite to the retaining bolt and torque it down. let set over night before greasing the Bobtach bushings and putting it back to work.

 

[rolb]

Yes, you can shorten the end pin somewhat to make sure it pulls in tight without contacting the washer. One thing I do when putting these pins back in; remove ALL grease from the pin and Bobtach bushing, apply a coating of spherical Loctite to the tapered part of the pin, insert pin in Bobtach, slide it up in place then (with a longer bolt threaded in finger tight) pull the pin into place, remove that bolt and apply Loctite to the retaining bolt and torque it down. let set over night before greasing the Bobtach bushings and putting it back to work.

Great Job…. Have a nice day!