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Lift chain breakage
I currently am working in an account that is running Hyster H100XM with Balzoni paper roll clamps. We are experiencing lift chain breakage at low hours. I believe it to be an operational error with over loading. Has anyone seen this on the H100xm or H110xm?
  • Posted 9 Aug 2012 06:52 AM
Total replies: 5. Showing items 1 - 5 of 5 results.
Replies
  • sean3
  • lancashire, United Kingdom
Have had turned pins and premature wear on the h5.50xm with PRC. The one I had did not have a hydra cushion/accumalator. Really needs a hydra-cushion to take out the shock.
  • Posted 10 Aug 2012 06:53 AM
  • Jplayer
  • North Carolina, United States
been dealing with lifttrucks for over 30yrs
never have seen any widespread issues with liftchains breaking except only in an operator abuse situation
specifically in your case with the paperroll clamp on that big truck?
the truck being a 100 series its rated at about 10,000 capacity normally, with the paperroll clamp i'm sure that was downgraded to about 8,000 or there about?
you have to take that into consideration plus how the operator is trying to handle his loads, in alot of cases when i've done work at any type of factory that handles large paperrolls they do try and pickup multiple rolls at the same time, generally 2 at a time.
how much does each roll weigh?
does it exceed the truck capacity plate rating with 2 rolls?
is the operator trying to move around more than 2 rolls by taking the weight off of several stacked rolls and sliding them across the floor?

any of these situations can be contributing to chain breakage due to overloading the chain capacity.

if these trucks are low hour(fairly new) trucks this should not be happening for no unapparent reason.

just some things to ponder to help you on your quest to find out why.

good luck!

John Player Jr
_________________
LiftOne, LLC
Charlotte, NC
Email: jplayer@liftone.net
  • Posted 10 Aug 2012 07:38 AM
  • • Modified 10 Aug 2012 07:41 AM by poster
  • kevin_t
  • Pennsylvania, United States
One thing that might be contributing to chain breakage is if the chains go slack when lowering the rollclamp and then catching on another roll or something then dropping and the chains taking the brunt of the stress
  • Posted 10 Aug 2012 07:43 AM
I have seen some clamp truck operators that continue to hold the lowering lever forward even after the load is resting on another roll, or where ever they are putting it, causing the lift cylinder to continue to go down and slacking the chains. Then they open the clamp and bang, the carriage/clamp assembly drops, which must put stress on the chains.
  • Posted 10 Aug 2012 07:50 AM
  • bbforks
  • Pennsylvania, United States
I have seen operators let the chain get slack, only to let the carriage bang once the clamp is released. A properly charged accumulator solved the problem.

If you don't correct the situation, your hoist cyl packings will also begin to leak. It wasn't until this stage did the customer allow me to install the accumulator

bbforks (at) Hotmail (dot) com
Customers love technology- until they have to pay to fix it!
  • Posted 21 Aug 2012 08:21 AM
Total replies: 5. Showing items 1 - 5 of 5 results.

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