What defects should be checked for on hydraulic rams and pressure hoses?

When inspecting hydraulic rams and pressure hoses, it's essential to conduct comprehensive checks for several specific defects, which includes looking for leaks, splits, fractures, and any bending or damage to the rams. This thorough approach ensures that any issues that could compromise the safety and functionality of the hydraulic system are identified and addressed.

Leaks can signify wear or damage that might lead to loss of hydraulic fluid, impacting the machinery's performance. Splits and fractures indicate structural integrity problems that could lead to catastrophic failure under pressure. Bent or damaged rams can also affect the operation of the machine, potentially causing it to malfunction or operate unpredictably. Therefore, a detailed inspection of all these factors is crucial for the safe and efficient operation of excavators and other heavy machinery utilizing hydraulic systems.

The other options mentioned do not encompass the full range of necessary inspections. Focusing solely on leaks from seals would ignore potential fractures or bends that could lead to severe safety issues. Limiting checks to only visual inspections might miss hidden defects not visible at first glance. Lastly, checking for color changes does not provide relevant information about the mechanical integrity of hydraulic components. Therefore, the most comprehensive and safety-oriented approach is aligning with the option that includes a thorough inspection for a range of potential defects