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CONTROL VALVE SPOOL PILOT ACTUATION PRESSURE TEST - Continued
SYSTEM RELIEF AND POWER BOOST VALVE TEST AND ADJUSTMENT

Technical Manual For Hydraulic Excavator Model 330Lcr 1
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TM 5-3805-281-24-1
Tests
Control Valve Spool Pilot Actuation--Specification
Pressure .................................................... 3 335--3 925 kPa (33.3--39.2
bar) (485--570 psi)
If pilot system pressure is to specification, then check pilot
pressure at the pilot shut-off valve, pilot controllers, and
flow regulator valve.
TX,9025,GG2483 1921NOV974/4
9025
25
73
6-220


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