1-66 SERVICE UTILITY SYSTEM POWER STEERING/SWIVEL LOCK ACCUMULATOR

1-65 SERVICE UTILITY SYSTEM APU START MODULE ACCUMULATOR (Continued)

1-66 SERVICE UTILITY SYSTEM POWER STEERING/SWIVEL LOCK ACCUMULATOR (Continued) - TM-55-1520-240-23-1_280

TM-55-1520-240-23-1 UH-1H/V and EH-1H Aircraft Manual
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TM 55-1520-240-23-1 1-66 SERVICE UTILITY SYSTEM POWER STEERING/SWIVEL LOCK ACCUMULATOR 1-66 INITIAL SETUP Applicable Configurations: All Tools: Aircraft Mechanic’s Tool Kit, NSN 5180-00-323-4692 Thermometer Source of High-Pressure Compressed Air or Nitrogen, With 0-3000 Psi Air Gage and Pressure Regulator Torque Wrench, 30 to 150 Inch-Pounds Materials: None Personnel Required: Medium Helicopter Repairer Inspector Equipment Condition: Battery Connected (Task 1-39) Electrical Power On Hydraulic Power Off Emergency Utility Pressure Valve Normal (TM 55-1520-240-T) 1. Measure and record outside air temperature. Use fat gage (1) in cockpit. 2. Set BRAKE STEER switch (2) on cockpit HYDRAULIC panel (3) to OFF. 3. Cycle SWIVEL switch (4) on cockpit STEERING CONTROL panel (5) five times between LOCK and UNLOCK positions. 4. Remove electrical power. 1-252

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