Instructor: CW2 Scott Paul Rogers HYDRAULICS Instructor: CW2 Scott Paul Rogers DURING THIS BRIEFING YOU WILL LEARN THE MEDICAL SERVICE CORPS’ VISION HISTORY FUNCTIONS AREAS OF CONCENTRATION SCIENTIFIC ACHIEVMENTS WE WILL HAVE A QUESTION PERIOD AND I WILL STATE THE CONCLUSION

OUTLINE Terminal Learning Objective Hydraulic Systems Component and Location Description Leak in No. 1 HYD System Leak in No. 2 HYD System Review Questions DURING THIS BRIEFING YOU WILL LEARN THE MEDICAL SERVICE CORPS’ VISION HISTORY FUNCTIONS AREAS OF CONCENTRATION SCIENTIFIC ACHIEVMENTS WE WILL HAVE A QUESTION PERIOD AND I WILL STATE THE CONCLUSION

TERMINAL LEARNING OBJECTIVE: To develop the student’s understanding of the components and functions of the Hydraulic System. TO PROVIDE HIGHLY SKILLED AND DEDICATED LEADERS WHO PERFORM THE CLINICAL, SCIENTIFIC, ADMINISTRATIVE, COMMAND AND SUPPORT SERVICES ESSENTIAL TO EFFICIENTLY AND EFFECTIVELY MANAGE A QUALITY, WORLD CLASS HEALTH CARE SYSTEM IN SUPPORT OF THE ARMY.

HYDRAULIC SYSTEMS Provides 3000 to 3100 + 50 psi Operates Primary Servos Tail Rotor Servos Pilot Assist Servos APU Start motor

COMPONENTS AND LOCATION MAJOR COMPONENTS 3 Hydraulic Pump Modules 2 Transfer Modules Utility Module Pilot Assist Module 3 Primary Servos MOST OF THESE COMPONENTS ARE GROUPED TOGETHER ON THE UPPER DECK IN FRONT OF THE TRANSMISSION. THE SERVOS ARE CONNECTED TO THE HYDRAULIC MODULES THROUGH MANIFOLDS AND SELF-SEALING COUPLINGS. 3 Hydraulic Pump Modules 2 Tranfer Modules Utility Module Pilot Assist Module 3 Primary Servos Tail Rotor Servo 4 Pilot Assist Servos APU Accumulator APU Handpump Refill Handpump

COMPONENTS AND LOCATION MAJOR COMPONENTS (cont) Tail Rotor Servo 4 Pilot Assist Servos APU Accumulator APU Handpump Refill Handpump

Three Hydraulic Systems System Description Three Hydraulic Systems No. 1 Hydraulic System No. 2 Hydraulic System Backup Hydraulic System THE HYDRAULIC SYSTEM PROVIDES BETWEEN 3000 TO 3100 + 50 PSI OF HYDRAULIC PRESSURE TO OPERATE THE PRIMARY SERVOS, TAILROTOR SERVOS, PILOT ASSIST SERVOS AND APU START MOTOR.

Resv Level Sensing Switch Leak in #1 HYD System Logic module shuts the NO. 1 TR shutoff valve at the NO. 1 Transfer Module and opens the NO. 2 T/R shutoff valve. LEAKAGE IN NO. 1 Partial Loss of NO. 1 Resv Hyd Fluid Activation of NO. 1 Resv Level Sensing Switch #1 RSVR LOW Turns off NO. 1 Tail Rotor Servo #1 TAIL RTR SERVO BU Pump On BACK-UP PUMP ON Turns On NO. 2 Tail RTR Servo # 2 TAIL RTR SERVO ON

If No Other Lights Leak is in NO. 1 Stage Tail Rotor Servo

# 1 PRI SERVO PRESS TAIL ROTOR QUADRANT MAIN XMSN OIL TEMP BOOST SERVO OFF LFT PITOT HEAT CHIP INPUT MDL - LH CHIP ACCESS MR DE-ICE FAIL OIL PRESS #1 ENG ANTI-ICE ON APU ON APU ACCUM LOW # 2 PRI # 1 TAIL RTR SERVO APU OIL TEMP HI TRIM FAIL RT PITOT MDL - RH ICE DETECTED BACK-UP RSVR LOW #2 ENG PUMP ON #2 TAIL RTR SERVO ON #1 HYD PUMP IRCM INOP INT XMSN STABILATOR FLT PATH STAB CHIP CHIP MAIN MDL SUMP FAULT #1 RSVR #1 ENG INLET APU GEN ON SEARCH LT ON #2 HYD AUX FUEL TAIL XMSN SAS OFF IFF APU TR DE-ICE #2 RSVR #2 ENG INLET PRIME BOOST LDG LT ON

If the Leak continues

Leak in #1 HYD System (Cont) Complete Loss of NO. 1 RSVR HYD fluid #1 HYD PUMP #1 PRI SERVO PRESS Backup Pump Supplies No. 1 PRI SERVO and NO. 1 TR SERVO (NO. 1 TR Servo Turned Back On) BACK-UP PUMP ON Logic module turns off 2nd stage T/R shut off valve, and opens the NO. 1 T/R shutoff valve at the NO. 1 Transfer Module

If No Other Lights Leakage is up stream of NO. 1 transfer module

# 1 PRI SERVO PRESS TAIL ROTOR QUADRANT MAIN XMSN OIL TEMP BOOST SERVO OFF LFT PITOT HEAT CHIP INPUT MDL - LH CHIP ACCESS MR DE-ICE FAIL OIL PRESS #1 ENG ANTI-ICE ON APU ON APU ACCUM LOW # 2 PRI # 1 TAIL RTR SERVO APU OIL TEMP HI TRIM FAIL RT PITOT MDL - RH ICE DETECTED BACK-UP RSVR LOW #2 ENG PUMP ON #2 TAIL RTR SERVO ON #1 HYD PUMP IRCM INOP INT XMSN STABILATOR FLT PATH STAB CHIP CHIP MAIN MDL SUMP FAULT #1 RSVR #1 ENG INLET APU GEN ON SEARCH LT ON #2 HYD AUX FUEL TAIL XMSN SAS OFF IFF APU TR DE-ICE #2 RSVR #2 ENG INLET PRIME BOOST LDG LT ON

If the Leak continues

Leak in #1 HYD System (cont) Resv Level Sensing Switch Partial Loss of Backup Resv Hyd Fluid Leakage in 1st Stage PRI SERVO Activation of Backup Resv Level Sensing Switch BACK-UP RSVR LOW PILOT MOVE SERVO OFF SWITCH 1ST STAGE NO PILOT ACTION

NO PILOT ACTION RESULTING CONDITION Loss of NO. 1 Primary Servo Loss of NO. 1 and NO. 2 T/R Servo Back up Pump Runs Dry BACK-UP RSVR LOW #1 PRI SERVO PRESS #1 HYD PUMP #1 RSVR LOW #1 TAIL RTR SERVO BACKUP PUMP INOP

# 1 PRI SERVO PRESS TAIL ROTOR QUADRANT MAIN XMSN OIL TEMP BOOST SERVO OFF LFT PITOT HEAT CHIP INPUT MDL - LH CHIP ACCESS MR DE-ICE FAIL OIL PRESS #1 ENG ANTI-ICE ON APU ON APU ACCUM LOW # 2 PRI # 1 TAIL RTR SERVO APU OIL TEMP HI TRIM FAIL RT PITOT MDL - RH ICE DETECTED BACK-UP RSVR LOW #2 ENG PUMP ON #2 TAIL RTR SERVO ON #1 HYD PUMP IRCM INOP INT XMSN STABILATOR FLT PATH STAB CHIP CHIP MAIN MDL SUMP FAULT #1 RSVR #1 ENG INLET APU GEN ON SEARCH LT ON #2 HYD AUX FUEL TAIL XMSN SAS OFF IFF APU TR DE-ICE #2 RSVR #2 ENG INLET PRIME BOOST LDG LT ON

PILOT MOVE SERVO OFF SWITCH 1ST STAGE RESULTING CONDITION Loss of NO. 1 Primary Servo BACK-UP RSVR LOW #1 PRI SERVO PRESS #1 HYD PUMP #1 RSVR LOW Leak is isolated by the pilot in the NO. 1 PRI servos BACK-UP PUMP ON

# 1 PRI SERVO PRESS TAIL ROTOR QUADRANT MAIN XMSN OIL TEMP BOOST SERVO OFF LFT PITOT HEAT CHIP INPUT MDL - LH CHIP ACCESS MR DE-ICE FAIL OIL PRESS #1 ENG ANTI-ICE ON APU ON APU ACCUM LOW # 2 PRI # 1 TAIL RTR SERVO APU OIL TEMP HI TRIM FAIL RT PITOT MDL - RH ICE DETECTED BACK-UP RSVR LOW #2 ENG PUMP ON #2 TAIL RTR SERVO ON #1 HYD PUMP IRCM INOP INT XMSN STABILATOR FLT PATH STAB CHIP CHIP MAIN MDL SUMP FAULT #1 RSVR #1 ENG INLET APU GEN ON SEARCH LT ON #2 HYD AUX FUEL TAIL XMSN SAS OFF IFF APU TR DE-ICE #2 RSVR #2 ENG INLET PRIME BOOST LDG LT ON

Resv Level Sensing Switch Leak in #2 HYD System Logic module shuts the Pilot Assist shutoff valve at the NO. 2 Transfer Module Increased Pedal and Collective Loads LEAKAGE IN NO. 2 Partial Loss of NO. 2 Resv Hyd Fluid Activation of NO. 2 Resv Level Sensing Switch #2 RSVR LOW Turns off Pilot Assist Servos BOOST SERVO OFF TRIM FAIL FLT PATH STAB SAS OFF

If No Other Lights Leak is in Pilot Assist Area

# 1 PRI SERVO PRESS TAIL ROTOR QUADRANT MAIN XMSN OIL TEMP LFT PITOT HEAT CHIP INPUT MDL - LH CHIP ACCESS MR DE-ICE FAIL OIL PRESS #1 ENG ANTI-ICE ON APU ON APU ACCUM LOW # 2 PRI # 1 TAIL RTR SERVO APU OIL TEMP HI RT PITOT MDL - RH ICE DETECTED BACK-UP RSVR LOW #2 ENG PUMP ON #2 TAIL RTR SERVO ON #1 HYD PUMP IRCM INOP INT XMSN FLT PATH STAB CHIP CHIP MAIN MDL SUMP FAULT #1 RSVR #1 ENG INLET APU GEN ON SEARCH LT ON #2 HYD AUX FUEL TAIL XMSN BOOST SERVO OFF TRIM FAIL STABILATOR SAS OFF IFF APU TR DE-ICE #2 RSVR #2 ENG INLET PRIME BOOST LDG LT ON

If the Leak continues

Leak in #2 HYD System (Cont) Complete Loss of NO. 2 RSVR HYD fluid #2 HYD PUMP #2 PRI SERVO PRESS Logic module opens the Pilot Assist shutoff valve at the NO. 2 Transfer Module Backup pump powers P.A. BU Pump On BACK-UP PUMP ON Pilot Assist Servos Turned On BOOST SERVO OFF SAS OFF TRIM FAIL FLT PATH STAB Power On Reset Press

If there are no other lights leakage is upstream of the NO. 2 Transfer Module

# 1 PRI SERVO PRESS #1 HYD PUMP #2 HYD PUMP # 2 PRI SERVO PRESS TAIL ROTOR QUADRANT IRCM INOP # 1 TAIL RTR SERVO AUX FUEL MAIN XMSN OIL TEMP INT XMSN OIL TEMP TAIL XMSN OIL TEMP APU OIL TEMP HI BOOST SERVO OFF STABILATOR SAS OFF TRIM FAIL LFT PITOT HEAT FLT PATH STAB RT PITOT HEAT IFF CHIP INPUT MDL - LH CHIP INT XMSN CHIP TAIL XMSN CHIP INPUT MDL - RH CHIP ACCESS MDL - LH CHIP MAIN MDL SUMP APU FAIL CHIP ACCESS MDL - RH MR DE-ICE FAIL MR DE-ICE FAULT TR DE-ICE FAIL ICE DETECTED MAIN XMSN OIL PRESS #1 RSVR LOW #2 RSVR LOW BACK-UP RSVR LOW #1 ENG ANTI-ICE ON #1 ENG INLET ANTI-ICE ON #2 ENG INLET ANTI-ICE ON #2 ENG ANTI-ICE ON PRIME BOOST PUMP ON BACK-UP PUMP ON APU ON APU GEN ON APU ACCUM LOW SEARCH LT ON #2 TAIL RTR SERVO ON LDG LT ON

Leak in #2 HYD System (cont) Resv Level Sensing Switch Partial Loss of Backup Resv Hyd Fluid Leakage in 2nd Stage PRI SERVO Activation of Backup Resv Level Sensing Switch BACK-UP RSVR LOW PILOT MOVE SERVO OFF SWITCH 1ST STAGE NO PILOT ACTION

NO PILOT ACTION RESULTING CONDITION Loss of NO. 2 Primary Servo Loss of NO. Pilot Assist Servos BACKUP PUMP INOP BACK-UP RSVR LOW #2 PRI SERVO PRESS #2 HYD PUMP #2 RSVR LOW SAS OFF TRIM FAIL BOOST SERVO OFF FLT PATH STAB

# 1 PRI SERVO PRESS TAIL ROTOR QUADRANT MAIN XMSN OIL TEMP LFT PITOT HEAT CHIP INPUT MDL - LH CHIP ACCESS MR DE-ICE FAIL OIL PRESS #1 ENG ANTI-ICE ON APU ON APU ACCUM LOW # 2 PRI # 1 TAIL RTR SERVO APU OIL TEMP HI RT PITOT MDL - RH ICE DETECTED BACK-UP RSVR LOW #2 ENG PUMP ON #2 TAIL RTR SERVO ON #1 HYD PUMP IRCM INOP INT XMSN FLT PATH STAB CHIP CHIP MAIN MDL SUMP FAULT #1 RSVR #1 ENG INLET APU GEN ON SEARCH LT ON #2 HYD AUX FUEL TAIL XMSN BOOST SERVO OFF TRIM FAIL STABILATOR SAS OFF IFF APU TR DE-ICE #2 RSVR #2 ENG INLET PRIME BOOST LDG LT ON

PILOT MOVE SERVO OFF SWITCH 2ND STAGE RESULTING CONDITION Loss of NO. 2 Primary Servo Pilot Assist Servo Pressure Supplied by the Backup Pump BACK-UP RSVR LOW #2 PRI SERVO PRESS #2 HYD PUMP #2 RSVR LOW BACK-UP PUMP ON

# 1 PRI SERVO PRESS TAIL ROTOR QUADRANT MAIN XMSN OIL TEMP LFT PITOT HEAT CHIP INPUT MDL - LH CHIP ACCESS MR DE-ICE FAIL OIL PRESS #1 ENG ANTI-ICE ON APU ON APU ACCUM LOW # 2 PRI # 1 TAIL RTR SERVO APU OIL TEMP HI RT PITOT MDL - RH ICE DETECTED BACK-UP RSVR LOW #2 ENG PUMP ON #2 TAIL RTR SERVO ON #1 HYD PUMP IRCM INOP INT XMSN FLT PATH STAB CHIP CHIP MAIN MDL SUMP FAULT #1 RSVR #1 ENG INLET APU GEN ON SEARCH LT ON #2 HYD AUX FUEL TAIL XMSN BOOST SERVO OFF TRIM FAIL STABILATOR SAS OFF IFF APU TR DE-ICE #2 RSVR #2 ENG INLET PRIME BOOST LDG LT ON

Review Hydraulic Systems Component and Location Description Leak in No. 1 HYD System Leak in No. 2 HYD System DURING THIS BRIEFING YOU WILL LEARN THE MEDICAL SERVICE CORPS’ VISION HISTORY FUNCTIONS AREAS OF CONCENTRATION SCIENTIFIC ACHIEVMENTS WE WILL HAVE A QUESTION PERIOD AND I WILL STATE THE CONCLUSION

CONCLUSION UH-60 HYDRAULICS LEAK ISOLATION L.D.I. -- Isolates leaks in #1 T/R servo and Pilot Assist Area T.V. -- Isolates a leaking Hydraulic Pump Pilot -- Isolates leaks in primary servos

QUESTIONS ?

Short Quiz UH-60 HYDRAULICS LEAK ISOLATION What isolates leaks in #1 T/R servo and Pilot Assist Area? What isolates a leaking Hydraulic Pump? What isolates leaks in primary servos?