Massey 1758 Hyro Transmission Oil Issues

stormcom · May 13, 2018

Here is the reply from Chevron when I inquired on their Oil.

Synthetic all weather THF is out version of a UTTO fluid meeting WB ZEF 05F. Would suggest drain flush and refill to ensure comtamination is out of system

--------------- Original Message ---------------
From: Scott Storm [scott@stormcomputer.com]
Sent: 11/15/2017 4:01 AM
To: lubetek@chevron.com
Subject: FW: massey 1758 hydrostatic

From: Scott Storm [mailto:scott@stormcomputer.com]
Sent: Tuesday, November 14, 2017 4:19 PM
To: 'Doug Clan'
Subject: RE: massey 1758 hydrostatic

Massey Ferguson 1758 tractor 2017 model. Currently has 46 hrs on it. Oil is breaking down and turning milky. Oil breakdown is overheating trans hydraulic. People have written that changing to synthetic oil helps with the breakdown.

ss

Synthetic all weather THF is out version of a UTTO fluid meeting WB ZEF 05F. Would suggest drain flush and refill to ensure comtamination is out of system

--------------- Original Message ---------------
From: Scott Storm [scott@stormcomputer.com]
Sent: 11/15/2017 4:01 AM
To: lubetek@chevron.com
Subject: FW: massey 1758 hydrostatic

From: Scott Storm [mailto:scott@stormcomputer.com]
Sent: Tuesday, November 14, 2017 4:19 PM
To: 'Doug Clan'
Subject: RE: massey 1758 hydrostatic

Massey Ferguson 1758 tractor 2017 model. Currently has 46 hrs on it. Oil is breaking down and turning milky. Oil breakdown is overheating trans hydraulic. People have written that changing to synthetic oil helps with the breakdown.

ss

Synthetic all weather THF is out version of a UTTO fluid meeting WB ZEF 05F. Would suggest drain flush and refill to ensure contamination is out of system

Doug Clan
Lubetek
1 800 582-3835

stormcom · May 27, 2018

Well folks, I changed oil to the Chevron Full synthetic. Temp went down and no squeeling. Sending samples of old oil to be tested. The official Massey oil had the consistency of baby oil with less than 5hrs on it. As soon as I get the results, I will post them. If you are having bucket trouble, noisy hydrostat, or losing speed after it gets hot, try the chevron oil. Everything runs cooler including my patience. Keeping Massey. Wish Massey monitors this and will chime in as to why going synthetic fixes issues that 7 or 8 trips with the factory could not fix. Maybe they need to put this in from the factory.

Musky50 · Jul 14, 2018

Do any of you have an idea of your housing temps when your gauge shows hot? I dont have a temp gauge on my 2006, 1533 and want to keep check on this. I shot the housing after mowing and was 130 degrees on the outside using and infrared.

onionfmr · Jul 15, 2018

Musky50 said:
Do any of you have an idea of your housing temps when your gauge shows hot? I dont have a temp gauge on my 2006, 1533 and want to keep check on this. I shot the housing after mowing and was 130 degrees on the outside using and infrared.

On my 1754, after running for 4 hours straight doing heavy box blade work in 85 degree temps with 70% humidity, with an IR gun shot all over the outside of the transmission housing, I got temps from 128 to 132 degrees. On the tractor the temperature gauge was showing 3 bars. Even after I let the tractor sit and heat soak a little, temps never got above 138 degrees. As a side note, oil pan temperature was 165 degrees when shot with IR gun. I've tried this a couple times and got the same temperature results. My guess is that this is normal running temperature for this tractor as the tractor always runs at 3 bars on temperature gauge when warmed up. Hope this helps.

Musky50 · Jul 15, 2018

I just shot 130 degrees after 2 hours using loader, no pto use. Hydraulic filter was 130 as well. Will check next time I mow and see if the PTO influences temps.

stormcom · Jul 15, 2018

After 3 hours of cutting grass in 100 degree high humidity Texas, I am at 124 on the trans with synthetic and was at 145 on MF oil. I also do not have the power degradation any more. Musky50, you need to make sure the tractor is not cutting power to maintain trans temp. On the 17xx, it is a problem especially with the hydro trans.

Musky50 · Jul 15, 2018

whats the indicator of power being cut, Similar to "limp home" mode on autos, it will be noticeable? What brand synthetic are you using? Is there a fix for this known problem? Mine is a power shuttle, is that the same as hydro trans? I just bought this thing and it is much more tractor than I am use to. Sorry for the barrage of questions, this thing makes me nervous, since the $800 windshield shattered the first day I had it..... Oh well. By the way Thanks greatly for the advise.

stormcom · Jul 20, 2018

sorry about the delay. it will cut from 100% to 80% to stop tranny overheat. I had all kinds of trouble with the HST and switched to Chevron FULL synthetic and problems stopped. It is a little pricey but it works. lots of notes in this thread. Yours is a shuttle and I would change to a FULL synthetic as it handles heat a lot better and has a better viscosity index. If you will tell me what weight oil it calls for, I will do a little research for you.

lpakiz · Jul 21, 2018

I am considering installing Chevron Synthetic THF in my 1754. The dealer also referred to this as All Weather and I saw another reference to 1000 in the nomenclature. Are we talking about the same oil?
One reason I ask is that he quoted $84.92 per 5 gallon pail.
I have had absolutely no problems with this machine and I have about 100 hours on it. Some of them are hard hours pulling wagonloads of wood weighing approx 7000# up and down hilly country roads. It does lose speed going up hill to the point that I let off on the hydrostatic pedal to recover some RPMs. Otherwise it just leans into the harness, trying its best. Also quite a few hours doing medium loader work. Again no problems digging holes with all 4 wheels trying to load the bucket. Wish you guys had better luck with yours.......

stormcom · Jul 22, 2018

THF 1000 is a petroleum based oil similar to the MF oil. see link:

https://cglapps.chevron.com/msdspds/PDSDetailPage.aspx?docDataId=77320&docFormat=PDF

I had trouble on 2 1754 and a 1758 tractors with heat issues with the hydro. It went to the shop 7 or 8 times and had the factory rep out there every time. Went to the full synthetic and can cut grass in a 100+ heat. The synthetic oil will pay off in the winter time and has a lot better viscosity index. I grew up in your part of the world (Hartland WI) and wished we had synthetic back then. I would not have had to wait for things to warm up on the snow blower. Onionfmr is in New York and had the same results that I did. He has written on it also. It is twice the price of the regular 1000 oil, but it works. With what we have invested in a tractor, the little bit extra is worth it. In an earlier post, I posted a phone number for Chevron Lubetech. They can give you drain intervals for your usage. The 1 must is pay 25.00 and have your oils tested. It is interesting to see the results.

The synthetic oil is an all season oil and is fully synthetic. see link:

https://cglapps.chevron.com/msdspds/PDSDetailPage.aspx?docDataId=294507&docFormat=PDF

Chevron Synthetic All-Weather THF is a combination
lubricant for modern tractors and similar equipment. It
performs many functions, such as lubrication of the
transmission and final drive, and serves as a hydraulic
fluid to operate power steering units, brakes,
implements, and attachments.
Chevron Synthetic All-Weather THF has a viscosity
index much higher than conventional multifunctional
transmission/hydraulic fluids. This provides excellent
flow at low temperatures and good oil film protection at
high operating temperatures.
Furthermore, Chevron Synthetic All-Weather THF:
• minimizes brake “chatter” and excessive brake
facing wear
• assists with the smooth operation of clutch packs
and wet brakes

Hope this helps.