Right Hydro weaker Maybe ?

[MountainManDan]

I Just would like to Ask as I have never Owned Used or New Zero Turn - just Picked a nice Zero Turn with 2.6 Hrs -
I Believe it to be more 18 hours , but I'm still Checking into all that !

Anyhow slightly weaker on right side Hydro - Shop Adjusted it as it went back after 1 Hr of Testing . .

Weird thing they Never gave Me any Paper work .. Odd has a Warranty so I was Told ..
Well We'll have to Demand that ..


MY Question is Why do I see & Read about all these Mower Guys changing Hydro Gear Oil in First 5-10 hrs
On Zero Turn Mowers as Hydro-Gear Transmission on Tractors - i do not see anything about Early Hydro Gear Oil being Changed Out ?

It is Just a Break In Thing that some Oil Corps. Started ?
Oil Filter Organizations Pushing this or Has there Been Real Proof that this is a Big Plus & Extends Life
or Either Oil or Trans-Axles ?

As I have Not seen any Proof - I've searched & Read 40 Places . .

New Zero Turn Owner with ZT-3200 Commercial Rated Units .. Runs Good 9 + Mph
I did Mow 10 min. - In Tall Grass after doing My Yard - as near by wasn't done for 3+ weeks

Thank You for all Replies . .

PS:
Next Time I'm IR Temperature Testing everything . . ADDING PICTURE OF OIL
AS I HAVE NO IDEA - COLOR of Hydro-Gear Oil - Factory Oil

 

[doitmyself]

Mostly I see manuals recommending an early break in change at 75 to 100 hours, then going to a 400 +/- hour interval and/or sometimes annually. I'm not aware of 5 to 10 hour changes.

 

[martinq]

Mostly I see manuals recommending an early break in change at 75 to 100 hours, then going to a 400 +/- hour interval and/or sometimes annually. I'm not aware of 5 to 10 hour changes.

I've seen several hydro / hydraulic service manuals that call for a break in fluid change at 50 hrs. In most cases I would recommend a change at 5-10 hrs and then again at 50-100 hrs.

The sooner you get the contamination out of the system (metal wear, mfg debris, etc) the less damage is created by it. Add magnets where you can as they will clean 24hrs a day, not just when running.

TLDR : A clean system will shed less wear particles, live longer and fail less. Magnets are helpful.