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 Mechanics 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.
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