HYDRAULIC PRESSURE SETTINGS
7 - 5
CASE TRAINING CENTER
AUGUST 2000
Port Description Location
4A3 Bucket closing
4B3 Bucket opening
4A2 Boom lowering
4B2 Boom raising
4A1 LH forward travel
4B1 LH reverse travel
5A5 Dipper retracting
5B5 Dipper extending
5B2 RH swing
5A2 LH swing
5A4 Option circuit
5B4 Option circuit G 3/4
5A1 RH forward travel
5B1 RH reverse travel G 3/4
PR-PL Inlet - pump P1-P2 G 3/4
P0 - OPT Supply to option spool G 1/2
R1 - R3 Plugged
R2 Check valve return 2.9 bar
FL-FR Pump regulating pressure (N)
PX1 Attachment and swing pressure switch G 1/4
PX2 Travel pressure switch G 1/4
PS1 39 bar supply (travel drift) G 1/4
DR1-DR2 Leak-off return G 1/4
PS2 Boom/dipper load holding pilot pressure
R5 By-pass return G 1/4
R4 To shock absorber (heating) G 1/4
PI1 Priority to swing G 1/4
PI2 Cancel priority to swing G 1/4
PI3 Dipper parallel flow variation
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