Cotterpin
Active Member
Here's a dandy problem ! Have a ZF differential causing me to have a fit . Any ideas appreciated . 921C Case loader ser. no. 125027. Operator was loading out of sandpile ,when he hears and feels a pop . Loader will no longer power front wheels .... driveshafts all intact . Can see ring and pinion are turning thru oil fill hole . Drained differential oil and did not find any metal frags . Drained transmission and found no metal frags . Removed differential and dissasembled . found no broken parts or debris . Reassembled and still no movement when turning pinion shaft yoke . Dissasembled a second time , checked planetarys and all axle shafts & splines , spiders and clutch plates . Reassembled and still able to hold wheel hubs stationary while turning pinion yoke .......
Took differential and delivered to local Case dealer They susequently found some brake discs broken and replaced those along with the clutch packs in the carrier spider assys .Upon recieving differential from dealer , I installed in machine and took to rock yard to try out . Machine still will not power front wheels . Brought machine into shop and disconnected front driveshaft . With front wheels on ground , I can turn front driveshaft with little resistance . Common sense tells me I should not be able to turn the front driveshaft at all . Jacked machine completely off ground . In forward rear wheels & front driveshaft turn , but front wheels do not ....
Sorry for lengthy story , but am open to any and all suggestions . Differential is ZF MT 3105/LK 528
stucklisten nbr 4474 054 011 23.34 sp diff
MIL-L 21050
LS/sae 90
Kunden nbr 2984 45A1
Thanks , Terry (shop mechanic)
.
Took differential and delivered to local Case dealer They susequently found some brake discs broken and replaced those along with the clutch packs in the carrier spider assys .Upon recieving differential from dealer , I installed in machine and took to rock yard to try out . Machine still will not power front wheels . Brought machine into shop and disconnected front driveshaft . With front wheels on ground , I can turn front driveshaft with little resistance . Common sense tells me I should not be able to turn the front driveshaft at all . Jacked machine completely off ground . In forward rear wheels & front driveshaft turn , but front wheels do not ....
Sorry for lengthy story , but am open to any and all suggestions . Differential is ZF MT 3105/LK 528
stucklisten nbr 4474 054 011 23.34 sp diff
MIL-L 21050
LS/sae 90
Kunden nbr 2984 45A1
Thanks , Terry (shop mechanic)
.