TM 55-1520-240-23-6
7-258
TEST PRESSURE REDUCING VALVE (AVIM)
7-258
INITIAL SETUP
Applicable Configurations:
All
Tools:
Hydraulic Repairers Tool Kit, NSN 5180-00-323-4891
Hydraulic Test Stand
Hydraulic Hand Pump, 0 to 4500 psi
Graduate Cylinder, 50 cc
Stopwatch
Flowmeter, 0 to 5 gpm
Shutoff Valve (3)
Gage, 0 to 4500 psi
Gage, 0 to 1800 psi
Shutoff Valve, Solenoid Operated
Pressure Plug (2)
Flexible Hose, 0 to 4500 psi
Hydraulic Tube, 0 to 4500 psi
DC Power Supply, Capable of 28 Volts
Switch
Torque Wrench, 100 to 750 Inch-Pounds
Materials:
Lockwire (E231)
Personnel Required:
Aircraft Pneudraulics Repairer
Inspector
Equipment Condition:
Off Helicopter Task
Valve Installed in Crash Proof Box
Hydraulic Test Setup No. 1 (Flexible Hose)
Hydraulic Test Setup No. 2 (Flexible Hose)
Hydraulic Test Setup No. 3 (Hydraulic Tube)
General Safety Instructions:
Use suitable crash box to shield
personnel and equipment in case of
failure during test.
7-943