OPERATIONAL PERFORMANCE TEST / Component Test SECONDARY PILOT PRESSURE Preparation: 1. Stop the engine. 2. Push the air bleed valve on top of the hydraulic oil tank and release any remaining pressure. 3. Measure pressure at the location between pilot valve and signal control valve. Remove the pilot hose from the circuit to be measured. Install the hose (9/16-18UNF, Length: approx. 400 mm (16 in)) to the signal control valve side. Install tee (4351843), adapter (ST 6460), nipple (ST 6069), coupling (ST 6332) and pressure gauge (ST 6315) between the hoses. Pilot Valve Signal Control Valve Hose Nipple Pressure Gauge : 17 mm, 19 mm NOTE:
When removing the lines from signal con- trol valve, use tool (SNAP-ON GAN850812B: size 19.05 mm) in order to easily remove the lines. 4. Start the engine. Confirm that no oil leakage is observed at the pressure gauge connection. 5. Maintain the hydraulic oil temperature at 50 ± 5 ° C (122 ± 41 ° F). T1F3-04-05-008 T4-5-3 Tee Adapter