1990 Johnson Evinrude "ES" Cross V 88 thru 115, 150 thru 175, P/N 507874, Page 335Get this manual
f2l 8Install pressure gauge and adapter "A" to check problems t.l in the UP circuit INotel Tighten
gauge and adapter lightly to 5- 10 in Ibs(0,6- 1,2 Nm)Excessive torque might damage adapter or a-ring
9Cycle hydraulic unit UP and DOWN several times and check fluid level before proceeding
f21 10With all cylinders completely retractedbegin running the t.l unit UP The gauge should show approximately 200 PSI (1379 kPa) as the cylinders are extending .The gauge should show approximately (10,342 kPa) as the unit stalls
The stall pressure reading must not drop by more than 200 PSI (1379 kPa) after the motor stops
11 If your test results vary from those in Step 10, problem in the UP circuit is indicatedRefer to Page 9-6 for list of possible faultsf2l 12Following Steps through 9, install pressure gauge and8" to check problems in the DOWN circuit13With all cylinders completely extended, begin running the unit DOWN The gauge should show approximately 800 PSI (5516 kPa) as the cylinders are retracting The gauge should show approximately 900 PSI (6206 kPa) as the unit stalls The stall pressure reading must not drop by more than 200 PSI (1379 kPa) after the motor stops