These include, engine speed driving the hydraulic pump, concurrent hydraulic fluid draw from other onboard systems, reactive forces on the bucket, and the temperature and pressure of the hydraulic fluid.
Hydraulic fluid is produced in accordance with specific international standards and is sold to car manufacturers and motorists in sealed containers.
Vaporised hydraulic fluid is a known neurotoxin and it is possible that hazardous oil fumes may react with other chemicals to cause ill health.
One of the most common applications is the cooling of hydraulic fluid and oil in engines, transmissions and hydraulic power packs.
In most aircraft this system is hydraulic, with engine oil serving as the hydraulic fluid.
In 2004, the hospital mistakenly used hydraulic fluid instead of detergents to sterilize surgical instruments.
Such damaged seals can cause leakage of hydraulic fluid from the cylinder leading and lower the overall pressure.
Extensive trials, however, revealed that it was still prone to hydraulic fluid leakage from the long-recoil mechanism.