Hi..New to forum.
I just bought an older (1977) Hyster electric 4000#.
When I bought it 2 months ago forks would go all the way up but it would not lift a heavy load. Now (2 months later) it will not go past the first cylinder on lift and wont lift more than a few hundred pounds. The tilt is also very weak.
Thus far I have changed fluid and filter and had pump checked - all ok. A gauge on the port shows only 200 psi.
Is there a bypass valve or a check valve that can be causing such low pressure. Thanks for any help.