TM-55-1905-223-24-9 Steering Gear System for Landing Craft Utility (LCU) NSN <a href="http://combatboats.tpub.com/01-154-1191.htm">1905-01-154-1191</a> Manual

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TM-55-1905-223-24-9

TECHNICAL MANUAL
Unit, Intermediate Direct Support, and Intermediate General Support Maintenance Instructions
Unit, Intermediate Direct Support, and Intermediate General Support Maintenance Instructions
Unit, Intermediate Direct Support, and Intermediate General Support Maintenance Instructions
DISTRIBUTION
WARNING
TABLE OF CONTENTS
TABLE OF CONTENTS - continued
Chapter 1. INTRODUCTION
FIGURE 1-1. Electrohydraulic Steering Gear.
Figure 1-2. Electrohydraulic Steering Gear Hulls 2008 and subsequent
Section II. EQUIPMENT DESCRIPTION AND DATA
Figure 1-3. Steering Gear (Hydraulic Piping) System.
Figure 1-4. Steering Gear (Hydraulic piping) System
Figure 1-5. Rudder/Steering Gear Arrangement.
Figure 1-6. Reservoir Sight Gauge.
Figure 1-7. Reservoir Sight Gauge.
Figure 1-9. Pumpset Inlet Line Filter.
Figure 1-11. Pumpset Return Line Filter.
Reservoir Sight Gauge
Manifold Inlet Filter
Hydraulic Cylinders
Emergency Hand Pump
Figure 1-12. Port Location.
Equipment Data
Table 1-1.1 Steering Gear Equipment Data
Section III. PRINCIPLES OF OPERATION
Chapter 2. UNIT MAINTENANCE INSTRUCTIONS
Section III. UNIT PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PKCS)
Table 2-1. Preventive Maintenance Checks and Services
Section IV. UNIT TROUBLESHOOTING
Table 2-2. Troubleshooting
Section V. UNIT MAINTENANCE PROCEDURES
SERVICE
Flush.
FIGURE 2-1. Reservoir Sight Gauge.
Bleed.
Replace Followup Unit
FIGURE 2-2. Followup Unit.
Repair Hydraulic Cylinder Assembly
REPAIR
FIGURE 2-3. Hydraulic Cylinder Assembly.
Repair Tiller Arm Assembly
FIGURE 2-4. Tiller Arm Assembly.
Replace/Repair Helm Pump (Figure 2-5)
REPAIR
FIGURE 2-5. Helm Pump (Sheet 1 of 2).
FIGURE 2-5. Helm Pump (Sheet 2 of 2).
Replace/Repair Header Tank
FIGURE 2-6. Header Tank.
Repair Twin Pumpset Assembly
Hydraulic Piping.
REPAIR
Pumpset (Starboard Assembly).
FIGURE 2-7. Twin Pumpset TA30D (Sheet 1 of 2).
FIGURE 2-7. Twin Pumpset TA30D (Sheet 2 of 2).
Replace Hydraulic Pump
FIGURE 2-8. Remove Hydraulic Pump.
Replace Electric Motor
Replace Electric Motor
Replace/Repair Uniblock 2A Assembly (FIGURE 2-10)
REPLACEMENT
FIGURE 2-10. Uniblock 2A Assembly.
Replace/Repair Coil Assembly
FIGURE 2-11. Coil Assembly.
Replace/Repair Inlet Filter Assembly
FIGURE 2-12. Inlet Filter Assembly.
Dial Indicating Vacuum Gauge.
Replace/Repair Header Tank
Figure 2-13 Header Tank
Service Hydraulic Power Unit
Clean
Figure 2-14 Hydraulic Power Unit
Replace Feedback Unit #1
Figure 2-15. Feedback Unit #1
Replace Feedback Unit #2
Figure 2-16 Feedback Unit #2
Replace Electric Motor
Figure 2-17 Electric Motor
Section VI. PREPARATION FOR STORAGE OR SHIPMENT
Chapter 3. INTERMEDIATE DIRECT SUPPORT MAINTENANCE INSTRUCTIONS
Section III. INTERMEDIATE DIRECT SUPPORT PREVENTIVE MAINTENANCE CHECKS AND SERVICES
Table 3-1. Preventive Maintenance Checks and Services (Perform as required)
Section IV. INTERMEDIATE DIRECT SUPPORT TROUBLESHOOTING
Section V. INTERMEDIATE DIRECT SUPPORT MAINTENANCE PROCEDURES
General
Repair Followup Unit
Electrical Components.
Straight Shaft.
FIGURE 3-1. Followup Unit.
Replace/Repair Hydraulic Cylinder Assembly
REPLACEMENT
FIGURE 3-2. Hydraulic Cylinder Assembly.
Replace/Repair Twin Pumpset Assembly.
Repair Hydraulic Pump
ASSEMBLY
FIGURE 3-3. Hydraulic Pump Assembly.
Repair Uniblock 2A Assembly
Shuttle Valve and Relief Vent.
ASSEMBLY
ADJUSTMENT
ADJUSTMENT - continued
FIGURE 3-4. Uniblock 2-A Assembly (Sheet 1 of 3).
FIGURE 3-4. Uniblock 2-A Assembly (Sheet 2 of 3).
FIGURE 3-4. Uniblock 2-A Assembly (Sheet 3 of 3).
Replace/Repair Relief/Bypass/Shutoff Valve
ASSEMBLY
FIGURE 3-5. Relief/Bypass/Shutoff Valve.
Replace/Repair Relief Cartridge.
FIGURE 3-6. Relief Cartridge.
Repair Feedback Unit #1
ASSEMBLY
Figure 3-7 Feedback Unit #1
Repair Feedback Unit #2
Figure 3-8 Feedback Unit #2
Section VI. PREPARATION FOR STORAGE OR SHIPMENT
Chapter 4. INTERMEDIATE GENERAL SUPPORT MAINTENANCE INSTRUCTIONS
Section III. INTERMEDIATE GENERAL SUPPORT PREVENTIVE MAINTENANCE CHEKCS AND SERVICES
Section V. INTERMEDIATE GENERAL SUPPORT MAINTENANCE PROCEDURES
Repair Hydraulic Cylinder Assembly
FIGURE 4-1. Hydraulic Cylinder Assembly.
Piston Head.
ADJUSTMENT
Replace/Repair Jockey Bar Assembly
REPLACEMENT
FIGURE 4-2. Jockey Bar Assembly.
Replace/Repair Tiller Arm Assembly
FIGURE 4-3. Tiller Arm Assembly.
Replace/Repair Rudder Assembly
FIGURE 4-4. Rudder Assembly.
REPLACEMENT
Repair Helm Pump.
Straight Shaft.
FIGURE 4-5. Helm Pump.
Rotor.
Repair Twin Pumpset Assembly
FIGURE 4-6. Twin Pumpset Assembly.
Repair Feedback Linkage
Figure 4-7 Feedback Linkage
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
Section II. MAINTENANCE ALLOCATION CHART - continued
Section III. TOOLS AND TEST EQUIPMENT REQUIREMENTS
SECTION III TOOL AND TEST EQUIPMENT REQUIREMENTS
SECTION IV REMARKS
Appendix C. EXPENDABLE/DURABLE SUPPLIES AND MATERIALS LIST
SECTION II. EXPENDABLE/DURABLE SUPPLIES AND MATERIALS LIST
SECTION II. EXPENDABLE/DURABLE SUPPLIES AND MATERIALS LIST - continued
Appendix D. GENERAL BOLT TORQUE DATA (unless specified otherwise)
GLOSSARY
ALPHABETICAL INDEX
The Metric System and Equivalents
TM-55-1905-223-24-9
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