Hi all
i have 3 x Hyster 5.0DX one of which has just had a major diff/transmission failure. the following was received from the service company.
"spent a bit of time investigating your diff failure yesterday
my conclusion is chain of event -
spider gear thrusts bearing surface wore out first.then went steel to steel and quickly contaminating oil.
Pinion bearing then collapsed destroying crownwheel and pinion.
Have got results back from oil lab for 401 and 985 both with alerts on them for excessive wear and oil contamination
Have checked your oil on site, and strongly recommend you double check with your supplier that it is compatible with HYSTER spec that follows.
Hyster spec :- for differential
SAE 90
API GL-4
The oil you have on site and charted is
Mobil
85w-140
API GL-5"
Spec of oil is very similar. Hours on trucks range from 17000, 19000 (failed), 23000.
Is this an inherrent problem with these trucks?
Cost of failure so far $12500. Cost of investigation of remainder at least $5500 each.
Showing items 1 - 3 of 3 results.
I'm afraid I can't be of much help here.
HysterUSA does not list an A232.
I can find all you'd ever want to know on A231 and A233 but nothing on A232.
What I can tell you is that 18,000 - 23,000 hours on a diff in a H100 is not that bad.
At 4,000+ hours/year you are on the heavy side as far as use.
If those hours are mostly under heavy load then you are doing all right.
Maybe you need to teach us how to make our trucks last longer.
Sorry,
Mike
Thanks Mike
serial number of first failure was
A 232 R 01712 Y purchased in mid 2001. We have 5 other trucks all showing similar signs of wear with hours varying from 13000 - 23000, but mostly around 18000. The initial failure is in the truck doing most turning working in the warmest area of plant. Ambient varies from around 22 - 34 degrees C. The 23000hr truck travels mostly in straight lines.
thanks
Gazza
I don't have any experiece with your specific truck as they don't sell them in North America.
However, in my experience most diff failures can be traced back to operator issues. Spinning the wheels, getting stuck, dropping the cluctch etc...
That being said the bills do seem very excessive.
If you give me a specific model and s/n, i'll put in a query at Shyster and see what i can dig up as far as grams etc.
Forkliftaction accepts no responsibility for forum content and requires forum participants to adhere to our rules of conduct. Click here for more information.
If you are having trouble using the Discussion Forums, please contact us for help.