TM-9-2350-311-34-2 Maintenance Manual for Volume 2 M109 Cab Download
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TM 9-2350-311-34-2 5 Apply hydraulic pressure to PRESSURE port (16) increasing from 0-3300 psi (0-22754 kPa). Valve (3) should open at 3200 ± 100 psi (22064 + 690 kPa). Opening of valve is indicated by flow from RET port (15). 6 Remove lockwire (1). 7 Loosen outer nut (2) by turning counterclockwise. 8 To increase opening pressure, rotate adjusting screw (17) clockwise with a hex key. To decrease opening pressure, rotate adjusting screw counterclockwise. 9 Tighten outer nut (2). 10 Measure valve (3) opening pressure (step 5). Repeat steps 6 through 10 as necessary until opening pres- sure of 3200 ± 100 psi (22064 ± 690 kPa) is obtained. 11 When proper pressure setting is obtained, install new lockwire (1) to secure outer nut (2) to valve (3). 6-43