DISTRIBUTIONSYSTEMS-PRIMARYHYDRAULICPOWERSYSTEM
Reliefvalve-Pressuresetting
1.Removethecoverfromthemainreliefvalveand
loosenthelocknutontheadjustingscrew.
2.Turntheadjustingscrewintothemainreliefvalveto
increasethepressureoroutofthemainreliefvalve
todecreasethepressure.
3.RefertoReliefvalve-Pressuretest(A.10.A)and
checkthepressuresetting.Adjustthemainrelief
valveagainasnecessary.
4.Whenthepressuresettingiscorrect,preventthead-
justingscrewfromturningwhilethelocknutistight-
ened.Installthecoveronthemainreliefvalve.
8426083121/08/2009
A.10.A/
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