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MAINTENANCE MANUAL
YOU CAN NOT USE THE SYSTEM ACMP TO DO THIS STEP. YOU CAN MOTOR THE ENGINE TO SUPPLY HYDRAULIC PRESSURE WITH THE EDP TO DO A CHECK OF THE ACMP LOW PRESSURE LIGHT.
FULL CHECK
Component Check for the Right Hydraulic System
Figure 622 (Sheet 2)
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MAINTENANCE MANUAL
NO. STEP PROCEDURE WHEN DONE CHECK GPM IN FLOW (+) NULLCALC. LEAKAGE (-) SEAL APPROVED LEAKAGE CORRECTIVE ACTION/BAD COMPONENT/COMMENTS
14 13 12 FEEL THE RETURN LINE FROM THE EDP PRESSURE/CASE DRAIN FILTER MODULE. DO NOT START THE AUTO-PILOT AND STAB TRIM CHECK LEAK. 10 SECONDS. LIGHT STAYS ON STAB TRIM CHECK PUSH THE R HYD PUMPS ENG SWITCH TO OFF. MAKE SURE THE EDP LOW PRESSURE LIGHT STAYS ON FOR AT LEAST 10 SECONDS. DO NOT START THE AUTOPILOT AND MAKE SURE THE EDP LOW PRESSURE LIGHT IS ON. DO NOT START THE AUTO-PILOT AND STAB TRIM CHECK LIGHT IS ON. (FIG. 623) UNTIL THE (FIG. 623) UNTIL THE SURE RELIEF VALVE HAS A (FIG. 623) IF THE PRES- NOT BE CORRECT. THE LEAKAGE CALCULATIONS WILL BAD RELIEF VALVE IS REPLACED, START THE AUTOPILOT AND STAB (AMM 29-11-17/401). IF YOU CALCULATIONS WILL NOT BE VALVE IS REPLACED, THE LEAKAGE PILOT AND STAB TRIM CHECK 401). IF YOU START THE AUTO-FILTER MODULE (AMM 29-11-17/ DID NOT LET THE CHECK VALVE 10 SECONDS, THE EDP LEAKAGE IF THE LIGHT GOES OFF IN NOT BE CORRECT. THE LEAKAGE CALCULATIONS WILL A BAD CHECK VALVE IS REPLACED, IF THE RETURN LINE IS HOTTER THAN THE FLIGHT CONTROL RETURN LINES, THE SYSTEM PRESSURE RELIEF VALVE HAS TOO MUCH LEAKAGE. REPLACE THE PRESSURE RELIEF VALVE IN THE EDP FILTER MODULE LEAKAGE CAUSE THE LIGHT TO GO OFF IN STEP 13. REPLACE THE CHECK VALVE IN THE EDP CORRECT. IF THE EDP PRESS LIGHT IS OFF, REPLACE THE CHECK VALVE IN THE EDP FILTER MODULE START THE AUTOPILOT AND STAB (AMM 29-11-17/401). IF YOU TRIM CHECK (FIG. 623) BEFORE (FIG. 623) BEFORE A BAD CHECK TRIM CHECK (FIG. 623) BEFORE A
FULL CHECK
Component Check for the Right Hydraulic System
Figure 622 (Sheet 3)
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