CHKADJ Periodic checks and adjustments3-15 63P3F11Checking the lower unit for airleakage1. Remove the check screw 1, and theninstall the special service tool.2. Apply the specified pressure to checkthat the pressure is maintained in thelower unit for at least 10 seconds.CAUTION:Do not over pressurize the lower unit, oth-erwise the oil seals can be damaged.NOTE:Cover the check hole with a rag when remov-ing the tester from the lower unit.3. If pressure drops below specification,check the drive shaft and propeller shaftoil seals for damage.Checking the propeller1. Check the propeller blades and splinesfor cracks, damage, or wear. Replace ifnecessary.General 3Checking the anodes1. Check the anodes and trim tab forscales, grease, or oil. Clean if necessary.Leakage tester: 90890-06840Lower unit holding pressure:70 kPa (0.7 kgf/cm 2, 10 psi)S69J3580S63P3300S60X3080