But what ground handling equipment? Does the hydraulic fluid need to be replaced after normal usage? Any intervention is an opportunity for mishaps, failure and

But what ground handling equipment? Does the hydraulic fluid need to be replaced after normal usage? Any intervention is an opportunity for mishaps, failure and sabotage. I'd expect the unlimited F-35 budget to come up with some formula that resists fire, cold, heat and pressure and doesn't need refills and/or with water detectors and other safety-critical chemical sensors in the hydraulic system.