8-8.3TM 55-1520-240-T8 - 8 . 3 H Y D R A U L I C O I L T E M P E R A T U R E I N D I C A T I N G S Y S T EMO P E R A T I O N A L C H E C KPersonnel Required:INITIAL SETUP67U10 Medium Helicopter Repairer67U20 Medium Helicopter RepairerApplicable Configurations:AllReferences:TM 55-1520-240-23Tools:NoneEquipment Conditions:TM 55-1520-240-23:Materials:Battery ConnectedNoneElectrical Power OnHydraulic Power OnHydraulic Oil Temperature Indicating SystemVisual Check Performed (Task 8-8.2)TASKRESULT1.2.3.4.5.Check that HYDRAULICS FLUID TEMPcircuit breaker (1) is closed.Check UTILITY HYDRAULICSTEMPERATURE indicator (2).Set POWER XFR NO. 1 switch (3) toON. Check NO. 1 FLT CONT HY-DRAULICS temperature indicator (4).Set POWER XFR NO. 1 switch (3) toOFF.Set POWER XFR NO. 2 switch (5) toON. Check NO. 2 FLT CONT HY-DRAULICS TEMPERATURE indicator(6).6. Set POWER XFR NO. 2 switch (5) to OFF.If circuit breaker (1) is open, close it. If it opensagain, go to task 8-8.4.Pointer on indicator (2) shall move upscale as fluidtemperature increases. Temperature indicationshall not exceed 120°C.If indicator pointer doesnot move upscale or pointer exceeds 120°C, go totask 8-8.5.Pointer on indicator (4) shall move upscale as fluidtemperature increases. Temperature indicationshall not exceed 120°C.If indicator pointer doesnot move upscale or pointer exceeds 120°C,go totask 8-8.6.Pointer on indicator (6) shall move upscale as fluidtemperature increases. Temperature indicationshall not exceed 120°C.If indicator pointer doesnot move upscale or pointer exceeds 120°C,go totask 8-8.7.FOLLOW-ON MAINTENANCE:TM 55-1520-240-23:Battery DisconnectedElectrical Power OffHydraulic Power Off8 - 1 38
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