I changed the hydraulic fluid and both filters on my ZD331 recently, and have a problem not encountered after 6 previous HST oil changes between 2 zd mowers....
Using sudt/2 fluid, correct amount replaced and confirmed on stick. I drain the trans and axles, then add about 8 qts, idle the machine with gentle forward / reverse movement, shut down and add the remaining 4.8 qts.
Symptoms are the machine initially operates fine, in a few minutes of idling the machine will not move forward or reverse. The hydraulic deck lift is also delayed and slow in raising the deck. After operating the motion levers for several minutes (with some loud groaning), the machine starts moving as normal. The deck still raises slower than usual. Sounds good, however, after mowing with no movement issues for several hours I put the mower away and have the same exact symptoms the following day.
Any ideas?
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Using sudt/2 fluid, correct amount replaced and confirmed on stick. I drain the trans and axles, then add about 8 qts, idle the machine with gentle forward / reverse movement, shut down and add the remaining 4.8 qts.
Symptoms are the machine initially operates fine, in a few minutes of idling the machine will not move forward or reverse. The hydraulic deck lift is also delayed and slow in raising the deck. After operating the motion levers for several minutes (with some loud groaning), the machine starts moving as normal. The deck still raises slower than usual. Sounds good, however, after mowing with no movement issues for several hours I put the mower away and have the same exact symptoms the following day.
Any ideas?
Sent from my iPad using Tapatalk Pro