Hydraulic & Coolant System Test Equipment

Leak testing vehicle hydraulic systems and coolant systems can become critical as access to these systems decrease during the assembly process. If leaks are found after the system is assembled and filled, rework can be difficult and time consuming. The majority of leaks in these systems are the result of assembly issues – loose hardware, pinched or missing o-rings and seals. As a result, leaks can range from large and noticeable to small and elusive.

Serv-I Quip has utilized a variety of leak testing and valve function verification methods in our hydraulic system and coolant system testing equipment. The leak testing method best suited to your process depends on the complexity of the system, access to the vehicle’s hydraulic control valves, and the issues and goals of your manufacturing facility. Combining multiple leak test methods into a sequential process can efficiently achieve your leak rate test criteria.

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The systems shown here simultaneously performs a hydraulic system test and a coolant system test. Utilizing low pressure air or nitrogen, this system incorporates an auditory leak detection technique as an effective first step. If audible amplification of leak venting cannot pinpoint leak location, a pressure decay test and a helium tracer gas sniff test are capable of finding minute leaks. Valve operation can be confirmed by monitoring pressure after cycling valves.

Combining these tests with a system flush and fill can greatly reduce quality issues associated with your product’s hydraulic or coolant system. DataServ 3.0 is available with this equipment to monitor testing, record and analyze results.