My hydraulic Oil Indicator beneath the clutch on my L2501 shows white. I ran it for 3-5 minutes, turned the steering wheel and raised the mower deck several times … still a white indication – no apparent trans/hydr fluid level. The manual does not say hot or cold, so I think it’s safe to say I have a low level.
Should I get it hot before I add hydr/transmission fluid or add it cold – before I run it?
I understand you are not changing the fluid but rather adding but the L2501 Service Manual says when changing…”After running the engine for a few minutes, stop it and check the fluid level again, if low, add fluid prescribed level”, so I believe this would still apply to you.