Zd21 deck problem

EastTNPharmD

New member
Aug 10, 2018
2
0
0
Knoxville, TN
Hey everyone this is my first post so if this is in the wrong place please move it.
I own a ZD21 and it has given us years of reliable service with no issue until this season. I have had the deck gearbox rebuilt twice and am taking it back to the dealer tomorrow. First time was a complete destruction replaced everything inside the housing. I have had the dealer do this since the tolerances are tight and we need this mower to run reliably. Second rebuild was my fault as the check plug/bolt had backed out letting the oil drain out and we ran it dry, again destroying everything inside so back again with everything new inside the housing. Now we have maybe put 20 hours on the mower and I pull it in and it’s leaking again from the lower shaft seal it appears. Is this just my bad luck or am I missing something? Thanks for the help.


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100 td

Active member

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B21TLB (B21, TL421 & BT751) Toyota SDK4 T116 Bobcat
Aug 29, 2015
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ɹǝpunuʍop
20 hours after rebuild if documented and done by dealer, speak to the dealer.
 

mickeyd

Active member
Lifetime Member

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2014 L3200 DT w/LA524 FEL, 2019 Kubota Z121S w/ 48" Pro Dec, TG1860G w/RCK54TG
Mar 21, 2014
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Guin, AL
It sounds like the dealer's rebuild was not right. Maybe they used the wrong seal or worse, didn't replace the seal like they should have.