My GC1723 manual says to change annually or every 250 hours on the hydraulic fluid and the same for the engine oil. I'm surprised the GC1705 calls for 500 hour intervals. The guy at Blackstone Labs suggested that I test TAN which I did and the starting point for new Permatran 821XL was 3.7. I'm going to send off a used Permatran sample soon to see how much higher it gets after about 16 months and about 50 hours of use but the annual change recommendation in the manual is because they know TAN will go up over time even with low hours.
Mine has a little over 500 hours. Out of the blue, it does not move in high range. I added type 46 hydraulic fluid. No change. Sight glass shows nothing.... or is over-full. It worked fine in high range 2 weeks ago, not a glitch.
They blow out if you overfill with fluid and/or if the little breather hole in the side of the rubber fill cap is plugged up. Make sure the fill cap is not caked over with mud and dirt. You should be able to blow air right through the hole in the cap. To repair the sight glass you have to clean it all up and silicone seal it back in place.
Thanks for this series of videos on the 1700 series maintenance procedures - really well done and concise. Best videos on the net!
What type of hydraulic oil did you use ?
My GC1723 manual says to change annually or every 250 hours on the hydraulic fluid and the same for the engine oil. I'm surprised the GC1705 calls for 500 hour intervals. The guy at Blackstone Labs suggested that I test TAN which I did and the starting point for new Permatran 821XL was 3.7. I'm going to send off a used Permatran sample soon to see how much higher it gets after about 16 months and about 50 hours of use but the annual change recommendation in the manual is because they know TAN will go up over time even with low hours.
Thank you for your time, very helpful.
How bout what type of fluid ???
Have you ever changed the pressure? Mine just seems like it won’t lift as good as when new
What hydraulic oil did you use for the refill?
Mine has a little over 500 hours. Out of the blue, it does not move in high range. I added type 46 hydraulic fluid. No change. Sight glass shows nothing.... or is over-full. It worked fine in high range 2 weeks ago, not a glitch.
Would this be the same way on a Massey Ferguson gc2310?
How many hours if taken care of can a subcontract last?
I have a GC1705. Any idea why my sight glass plug blew out? Spewed oil all over the place. Also. what is the repair to reinstall the sight glass?
They blow out if you overfill with fluid and/or if the little breather hole in the side of the rubber fill cap is plugged up. Make sure the fill cap is not caked over with mud and dirt. You should be able to blow air right through the hole in the cap. To repair the sight glass you have to clean it all up and silicone seal it back in place.
Great video. How much fluid did it take? will a 2.5 gallon jug be enough?
if i recall, alomst 3 gallons. just keep an eye on the eye glass, as long as its not overfilled and near top your good