TM-55-1905-223-24-17

• ENVIRONMENTAL CONTROL SUBSYSTEM FOR LANDING CRAFT UTILITY (LCU)
• Unit, Intermediate Direct Support and Intermediate General Support Maintenance Instructions
• ENVIRONMENTAL CONTROL SUBSYSTEM FOR LANDING CRAFT UTILITY (LCU)
• Unit, Intermediate Direct Support and Intermediate General Support Maintenance Instructions
• WARNING
• TABLE OF CONTENTS
• TABLE OF CONTENTS-Continued
• Chapter 1. INTRODUCTION
• SECTION II. EQUIPMENT DESCRIPTION AND DATA
• Figure 1-1. Major Components in Environmental Subsystem (HVAC).
• Ventilation System
• Location and Description of Major Components
• Table 1-1. Duct Heaters (DH)
• Table 1-2. Unit Heaters (UH)
• Table 1-4. Exhaust Fans (EF)
• Table 1-6. Air Conditioning Units (A/C)
• Table 1-7. Heater and Fan Equipment Data
• Table 1-8. Air Conditioning Equipment Data
• SECTION III. PRINCIPLES OF OPERATION
• Figure 1-2. Typical Arrangements for Heating, Ventilating and Compartments .
• Exhaust Air System
• Figure 1-3. Interface of Major Components in the Cooling (Air Conditioner) Cycle .
• Cooling Cycle
• Condenser.
• Figure 1-4. Water Cooling Process in Condenser .
• FIGURE 1-5. Methods of Metering Refrigerant Flow to the Cooling Coil (Evaporator).
• Function of HVAC Accessories
• Components Used in Air Conditioning (Cooling Cycle).
• Water Regulating Valve.
• Chapter 2. UNIT MAINTENANCE INSTRUCTIONS
• Deprocessing Unpacked Equipment.
• Duct Heaters (DH).
• Ventilation/Supply Fans (SF) and Exhaust Fans (EF).
• Cooling/Air Conditioning (A/C).
• Startup and operational check.
• Shutdown.
• Startup and operational check.
• Shutdown.
• SECTION III. UNIT PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS)
• Table 2-1. Preventive Maintenance Checks and Services (PMCS)
• Table 2-1. Preventive Maintenance Checks and Services (PMCS) - CONT
• Table 2-1. Preventive Maintenance Checks and Services (PMCS) - CONT
• Table 2-1. Preventive Maintenance Checks and Services (PMCS) - CONT
• Table 2-1. Preventive Maintenance Checks and Services (PMCS) - CONT
• Table 2-1. Preventive Maintenance Checks and Services (PMCS) - CONT
• SECTION IV. UNIT MAINTENANCE TROUBLESHOOTING
• Table 2-2. Troubleshooting
• VENTILATION (SUPPLY AND EXHAUST FANS)
• VENTILATION (SUPPLY AND EXHAUST FANS) -Cont
• VENTILATION (SUPPLY AND EXHAUST FANS) -Cont
• AIR CONDITIONING
• AIR CONDITIONING - CONT
• AIR CONDITIONING - CONT
• AIR CONDITIONING - CONT
• AIR CONDITIONING - CONT
• AIR CONDITIONING - CONT
• AIR CONDITIONING - CONT
• Additional Troubleshooting Tips on HVAC Equipment
• Heater Cycling on Automatic Limit.
• Axial Ventilating Fans.
• Air Conditioners.
• Alternating Current Voltages.
• Figure 2-2. Voltage System. 220 to 240V/3 Ph/60 Hz.
• Overload Devices.
• Figure 2-3. Checking Single Phase Circuit Fuses.
• Circuit Breakers.
• Contactors.
• Capacitors.
• Wiring Diagrams
• Wiring Diagrams (Cont)
• Figure 2-6. Electrical Symbols (Sheet 1 of 2).
• Figure 2-6. Electrical Symbols (Sheet 2 of 2).
• SECTION V. UNIT MAINTENANCE PROCEDURES
• MAINTENANCE OF ENVIRONMENTAL CONTROL SUBSYSTEM
• Figure 2-7. Duct Heater (Duct #1).
• Replace Heating Element.
• Repair Heater, Duct Type, Stationary (Duct #2)
• Figure 2-8. Duct Heater (Duct #2).
• REPAIR
• Repair Heater, Duct Type, Stationary (Duct #3).
• Figure 2-9. Duct Heater (Duct #3).
• REPAIR
• Repair Heater, Duct Type, Stationary (Ducts #4 through #7), (Ducts #9 through #12) and (Ducts #12A, #14, #16, and #17)
• Figure 2-10. Ducts Heater (Ducts #4 through #7: #9 through #12: #12A, #14, #16. and #17).
• REPAIR
• Repair Heater, Duct Type, Stationary (Ducts #8, #13, and #15)
• Figure 2-11. Duct Heater (Ducts #8. #13, and #15).
• REPAIR
• Repair Heater, Space, Electric (Units #1, #2, #4, #9, #10, and #11).
• Figure 2-12. Electrical Space Heater (Units #1. #2. #4. #9. #10. and #11).
• Repair Heater, Space, Electric (Units #3, #5, #6, and #7)
• Figure 2-13. Electric Space Heater (Units #3. #5. #6. and #7).
• Repair Fan, Ventilating (Supply Fan #3)
• Figure 2-14. Alternating Current Motor (SF #3)
• REPAIR
• Repair Fan, Ventilating (Supply Fan #4) (Bowthruster Room). (F IGURE 2-15)
• Figure 2-15. Ventilating Fan (Supply Fan #4).
• REMOVAL
• REPLACEMENT
• Replace/Repair Motor, Electric, Alternating Current (Supply Fan #4).
• Figure 2-16. Alternating Current Electric Motor .
• REPLACEMENT
• Repair Fan, Ventilating (Supply Fan #5) (A/C and Emergency Generator Room)
• Figure 2-17. Ventilating Fan (Supply Fan #5).
• REPLACEMENT
• Repair Fan, Ventilating (Supply Fan #6).
• Figure 2-18. Ventilating Fan (Supply Fan #6).
• REMOVAL
• REPLACEMENT
• Repair Motor, Electric, Alternating Current (Supply Fan #6)
• REPLACEMENT
• Repair Fan, Ventilating (Exhaust Fan #3) (Steering Gear Room).
• Figure 2-19. Ventilating Fan (Exhaust Fan #3).
• REPAIR
• REPLACEMENT
• Repair Fan, Ventilating (Exhaust Fans #4 and #6)..(FIGURE 2-20)
• Figure 2-21. Ventilating Fan (Exhaust Fans #4 and #6).
• REMOVAL
• REPAIR
• REPLACEMENT
• Repair Fan, Ventilating (Exhaust Fan #7)..(FIGURE 2-22)
• Figure 2-22. Ventilating Fan (Exhaust Fan #7).
• REPLACEMENT
• Repair Air Conditioner (A/C #1, Pilothouse) and (A/C #3, Engine Control Room)...(FIGURE 2-23)
• Figure 2-23. Air Conditioner (A/C #1 and A/C #3).
• REPAIR
• Repair Air Conditioner (A/C #2, Accommodations).
• Figure 2-24. Motor and V-Belt Assembly (A/C #2).
• Figure 2-25 . Air Conditioner Upper Cabinet (A/C #2).
• Repair Motor, Electric (A/C #2, Accomodations)
• Figure 2-26. Electric Motor (A/C-2).
• Figure 2-27. Electric Motor (A/C-2).
• REPAIR
• Replace Condenser, Refridgerating Water Cooled...(FIGURE 2-28)
• Figure 2-28. Condenser Unit (A/C-2. Accommodations).
• REPLACEMENT
• Section VI. PREPARATION FOR STORAGE
• Air Conditioners (A/C):
• Chapter 3. INTERMEDIATE DIRECT SUPPORT MAINTENANCE INSTRUCTIONS
• SECTION IV. INTERMEDIATE DIRECT SUPPORT TROUBLESHOOTING
• Table 3-1. Troubleshooting
• VENTILATION FANS (SUPPLY AND EXHAUST)
• VENTILATION FANS (SUPPLY AND EXHAUST) (Cont)
• AIR CONDITIONING
• AIR CONDITIONING (Cont)
• AIR CONDITIONING (Cont)
• AIR CONDITIONING (Cont)
• AIR CONDITIONING (Cont)
• SECTION V. INTERMEDIATE DIRECT SUPPORT MAINTENANCE PROCEDURES.
• Figure 3-1a. Discharging Refrigerant
• Evacuate System (A/C-1 and 3).
• Recharge System (A/C-1 and 3).
• DISCHARGING THE REFRIGERANT SYSTEM.
• DISCHARGING
• Repair Heater, Duct Type, Stationary (Duct #1)
• Figure 3-1. Duct Heater (DH #1).
• REPAIR
• FIGURE 3-2. Thermostatic Switches (DH #1).
• REPLACEMENT
• Repair Heater, Duct Type, Stationary (Duct #2, #3, #17). (FIGURE 3-3)
• Figure 3-3. Duct Heater (DH #2, #3, and #17).
• REPAIR
• Repair Heater, Duct Type, Stationary (Duct #4, #5, #6, #7, #8, #9, #10, #11, #12, #12A, #13, #14, #15, #16). (FIGURE 3-4)
• FIGURE 3-4 . Duct Heater (DH #4 thru #16).
• REPAIR
• Repair Heater, Space, Electric (Units #1, #2, #4, #9, #10, and #11). (FIGURE 3-5)
• FIGURE 3-5. Unit Space Heater (UH #1, #2, #4, #9, #10, and #11).
• REPAIR
• REPAIR (Cont)
• Repair Heater, Space, Electric (Units #3, #5, #6, and #7). (FIGURE 3-6)
• FIGURE 3-6. Unit Heater (UH #3, #5, #6, and #7).
• REPAIR
• Repair Heater, Space, Electric (Convection Heaters #1, #2, #3, and #4). (FIGURE 3-7)
• Figure 3-7. Convection Heater (CH #1 thru #4).
• REPAIR
• Repair Fan, Ventilating (Supply Fan #3)
• Figure 3-8 . Ventilating Fan (Supply Fan #3) .
• REPLACEMENT
• Repair Motor, Electric, Alternating Current (SF #3). (FIGURE 3-9)
• Figure 3-9 . Alternating Current Motor (SF #3) .
• REPLACEMENT
• REPLACEMENT (Cont)
• Repair Fan, Ventilating (Supply Fan #4). (FIGURE 3-10)
• Figure 3-10. Ventilating Fan (Supply Fan #4) .
• REPAIR
• Repair Motor, Electric, Alternating Current (SF #4, #5, and #6), (EF #3, #4, and #6) (FIGURE 3-11)
• Figure 3-11. Alternating Current Motor (SF #4, #5, and #6). (EF #3, #4, and #6) .
• Repair Fan, Ventilating (Supply Fan #5)
• Figure 3-12. Ventilating Fan (Supply Fan #5).
• Repair Fan, Ventilating (Supply Fan #6)
• Figure 3-13. Ventilating Fan (Supply Fan #6) .
• REPAIR
• Repair Fan, Ventilating (Exhaust Fan #3)
• Figure 3-14. Ventilating Fan (Exhaust Fan #3).
• Repair Fan, Ventilating (Exhaust Fans #4 and #6).
• Figure 3-15. Ventilating Fans (Exhausts Fan #4 and #6).
• REPAIR
• Repair Air Conditioner (A/C-1, Pilothouse), (A/C-3, Engine Control Room).
• Figure 3-16. Self-Contained Air Conditioner (A/C-1 and 3)
• REPAIR
• Figure 3-17. Air Conditioner Components (A/C-1 and 3).
• REPAIR
• REPAIR (Cont)
• REPAIR (Cont)
• Figure 3-18. Swagging Compressor Tubing.
• REPLACEMENT
• SECTION VI. PREPARATION FOR STORAGE OR SHIPMENT
• Chapter 4. INTERMEDIATE GENERAL SUPPORT MAINTENANCE INSTRUCTIONS
• Section III. INTERMEDIATE GENERAL SUPPORT PREVENTIVE MAINTENANCE CHECKS AND SERVICES
• Table 4-1. Troubleshooting
• AIR CONDITIONING
• AIR CONDITIONING (Cont)
• AIR CONDITIONING (Cont)
• AIR CONDITIONING (Cont)
• AIR CONDITIONING (Cont)
• AIR CONDITIONING (Cont)
• AIR CONDITIONING (Cont)
• AIR CONDITIONING (Cont)
• AIR CONDITIONING (Cont)
• SECTION V. INTERMEDIATE GENERAL SUPPORT MAINTENANCE PROCEDURES
• MAINTENANCE OF ENVIRONMENTAL CONTROL SUBSYSTEM
• Evacuate System (A/C-2).
• Recharge System (A/C-2).
• Recharge System (A/C-2). (Cont)
• Replace/Repair Fan, Ventilating (Exhaust Fans 1 and 2). (FIGURE 4-1)
• Figure 4-1 Ventilating Fan (Exhaust Fans 1 and 2)
• ASSEMBLY
• Repair Motor, Electric, Alternating Current (EF #1 and #2) SF #1 and #2. (FIGURE 4-2).
• Figure 4-2. AC Motor (EF #1 and #2: SF #1 and #2).
• REMOVAL
• ASSEMBLY
• Replace/Repair Fan, Ventilating (Supply Fans 1 and 2). (FIGURE 4-3)
• Figure 4-3 Ventilating Fan (Supply Fans 1 and 2 .
• ASSEMBLY
• Repair Air Conditioner Assembly ( Air Conditioner 2; Accommodations)
• Figure 4-4. Oil Pressure Switch.
• REPAIR
• REPAIR (Cont)
• Figure 4-5. Cooling Thermostat.
• Replace hot gas valve (1, FIGURE 4-6) as follows:
• Figure 4-6. Hot Gas Valve.
• Figure 4-7. Liquid Line Valve (High Pressure Solenoid).
• Replace refrigeration ball valves (1, 5, FIGURE 4-8) as follows:
• Figure 4-8. Refrigeration Ball Valves.
• Figure 4-9. Angle Valve.
• Replace pressure relief valve on receiver (1, FIGURE 4-10) as follows:
• Figure 4-10. Pressure Relief Valve.
• Figure 4-11. Moisture Indicator.
• Repair Motor, Electric. (FIGURE 4-12)
• Figure 4-12. Electric Motor.
• Replace/Repair Blower. ( FIGURE 4-13)
• Figure 4-13. Blower.
• ASSEMBLY
• REPLACEMENT
• Replace Liquid Refrigerant Receiver. (FIGURE 4-14)
• Figure 4-14 . Liquid Refrigerant Receiver .
• REPLACEMENT
• Repair Water Cooled Refrigerating Condenser. (FIGURE 4-15)
• Figure 4-15. Water Cooled Refrigerating Condenser .
• REPLACEMENT
• Replace/Repair Compressor, Refrigeration.
• REMOVAL
• Figure 4-16. Portable Gauge Manifold.
• FIGURE 4-17. Refrigeration Compressor .
• Figure 4-18. Removing Refrigerant Charge From Compressor.
• REMOVAL
• REPAIR
• REPAIR (Cont)
• Figure 4-19 . Compressor Unit (A/C-2) .
• REPAIR (Cont)
• REPAIR (Cont)
• REPAIR (Cont)
• Figure 4-20. Replacing Crankcase Component .
• REPAIR (Cont)
• FIGURE 4-21. Replacing Pump and Bearing Assembly.
• FIGURE 4-22. Replacing Crankshaft, Pistons, and Connecting Rods.
• REPAIR (Cont)
• REPLACEMENT
• REPLACEMENT (Cont)
• FIGURE 4-23. Evacuating Compressor.
• FIGURE 4-24. Adding Refrigerant to Compressor.
• REPLACEMENT (Cont)
• FIGURE 4-25. Low Refrigerant Charge.
• SECTION VI. PREPARATION FOR STORAGE OR SHIPMENT
• Appendix A: REFERENCES
• Appendix B. MAINTENANCE ALLOCATION CHART (MAC)
• EXPLANATION OF COLUMNS IN THE MAC, SECTION II
• EXPLANATION OF COLUMNS IN TOOL AND TEST EQUIPMENT REQUIREMENTS, SECTION III.
• SECTION II. MAINTENANCE ALLOCATION CHART FOR ENVIRONMENTAL CONTROL SUBSYSTEM
• SECTION II. MAINTENANCE ALLOCATION CHART FOR ENVIRONMENTAL CONTROL SUBSYSTEM (Cont)
• SECTION II. MAINTENANCE ALLOCATION CHART FOR ENVIRONMENTAL CONTROL SUBSYSTEM (Cont)
• SECTION II. MAINTENANCE ALLOCATION CHART FOR ENVIRONMENTAL CONTROL SUBSYSTEM (Cont)
• SECTION II. MAINTENANCE ALLOCATION CHART FOR ENVIRONMENTAL CONTROL SUBSYSTEM (Cont)
• SECTION II. MAINTENANCE ALLOCATION CHART FOR ENVIRONMENTAL CONTROL SUBSYSTEM (Cont)
• SECTION II. MAINTENANCE ALLOCATION CHART FOR ENVIRONMENTAL CONTROL SUBSYSTEM (Cont)
• SECTION II. MAINTENANCE ALLOCATION CHART FOR ENVIRONMENTAL CONTROL SUBSYSTEM (Cont)
• SECTION III. TOOLS AND TEST EQUIPMENT REQUIREMENTS
• SECTION IV. REMARKS
• SECTION IV. REMARKS (Cont)
• Appendix C: EXPENDABLE/DURABLE SUPPLIES AND MATERIALS LIST
• SECTION III. EXPENDABLE/DURABLE SUPPLIES AND MATERIAL LIST
• Appendix D: TORQUE VALUES
• Table D-2. Pipe Plug Torque Values
• Table D-4. Torque for Straight Threaded Tube Fittings, Hose Fittings, and Plugs with O-Rings"
• GLOSSARY
• SECTION II. DEFINITIONS
• ALPHABETICAL INDEX
• ALPHABETICAL INDEX (Cont)
• ALPHABETICAL INDEX (Cont)
• The Metric System and Equivalents
• TM-55-1905-223-24-17
• Blank Page
• By Order of the Secretary of the Army:

Privacy Statement - Press Release - Copyright Information. - Contact Us