If the fluid is low, the hoist will only go up so far and run out of fluid.
If there is air in the system the hoist will not go up steady and will be spongy.
Slow and steady is what you want.

Fred
What do you plan on using a big grain truck for?
Would a one ton dually be a better choice?

Don

1967 GMC 9500 Fire Ladder Truck
"The Flag Pole"
In the Stovebolt Gallery
1946 2-Ton grain truck
1946 3/4-ton pickup,
1953 1-ton pickup
1957 1-ton flatbed dually,
1954 Pontiac Straight Eight
Of all the things I've lost in my life, I miss my mind the most!