The following items must be tightened, repaired or replaced as required:
Operate the system at maximum operating pressure and check for possible malfunction and freedom from leaks. Note: Avoid potential hazardous areas while testing.
Specific replacement intervals must be considered based on previous service life, government or industry recommendations or when failure could result in unacceptable downtime, damage or injury risk.
Hydraulic hose (and hose assemblies) has a limited life dependent on service conditions to which it is applied. Subjecting hose (and hose assemblies) to conditions more severe than the recommended limits significantly reduces service life. Exposure to combinations of recommended limits (i.e., continuous use at maximum rated working pressure, maximum recommended operating temperature and minimum bend radius) will also reduce service life. Failure to follow proper selection, installation and maintenance procedures may result in injury to personnel and/or damage to equipment. Hose assemblies in service should be regularly inspected for leaks, abrasion, kinks, cover blisters or other such damages. Assemblies showing signs of wear or damage should be replaced immediately. Maximum service life can be obtained by complying with the following recommendations:
Storage environment, along with rubber materials can vary the shelf life limit. Some hose materials last longer in storage due to inherent resistance characteristics. Other materials require additives during compounding. These additives are eventually consumed, even in seemingly ideal storage conditions
Shelf life is difficult to quantify as many variables affect the hose. Proper storage precautions can result in three to five years shelf life. Beyond this time there can be significant service life decrease, depending on storage environment variables. Some of these variables are temperature, humidity, ozone, oil, solvents, corrosive materials, fumes, insects, rodents, radioactivity, space allowance and bends.
Hose should be stored in a cool dry area never exceeding +38º (+100ºF). If stored below freezing, pre-warming may be required prior to handling, testing and placing into service. Store hose in original container. Never stack hose too high, as it’s weight can crush hose at the bottom of the stack. Direct sunlight, rain, heaters or being near electrical equipment will reduce hose life.
It is recommended that hose in extended storage be visually inspected and tested prior to use. Hose judged marginal should be replaced to avoid potential failure, property damage or bodily injury. Store hose on a first in-first out basis. Unusually long storage or poor storage environment can deteriorate hose, reduce performance and may lead to premature failure.